From 43cc71eed1250755986da4c0f9898f9a635cb3bf Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sat, 18 Aug 2007 04:40:39 +0200 Subject: platform: prefix MODALIAS with "platform:" Prefix platform modalias strings with "platform:", which modprobe config to blacklist alias resolving if userspace configures it. Send uevents for all platform devices. Add MODULE_ALIAS's to: pxa2xx_pcmcia, ds1742 and pcspkr to trigger module autoloading by userspace. $ modinfo pcspkr alias: platform:pcspkr license: GPL description: PC Speaker beeper driver ... $ modprobe -n -v platform:pcspkr insmod /lib/modules/2.6.23-rc3-g28e8351a-dirty/kernel/drivers/input/misc/pcspkr.ko Signed-off-by: Kay Sievers Cc: David Brownell Cc: Atsushi Nemoto Signed-off-by: Greg Kroah-Hartman --- drivers/base/platform.c | 15 ++------------- drivers/input/misc/pcspkr.c | 1 + drivers/pcmcia/pxa2xx_mainstone.c | 2 +- drivers/pcmcia/pxa2xx_sharpsl.c | 2 +- 4 files changed, 5 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 869ff8c00146..9bfc434d1327 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -160,11 +160,6 @@ static void platform_device_release(struct device *dev) * * Create a platform device object which can have other objects attached * to it, and which will have attached objects freed when it is released. - * - * This device will be marked as not supporting hotpluggable drivers; no - * device add/remove uevents will be generated. In the unusual case that - * the device isn't being dynamically allocated as a legacy "probe the - * hardware" driver, infrastructure code should reverse this marking. */ struct platform_device *platform_device_alloc(const char *name, unsigned int id) { @@ -177,12 +172,6 @@ struct platform_device *platform_device_alloc(const char *name, unsigned int id) pa->pdev.id = id; device_initialize(&pa->pdev.dev); pa->pdev.dev.release = platform_device_release; - - /* prevent hotplug "modprobe $(MODALIAS)" from causing trouble in - * legacy probe-the-hardware drivers, which don't properly split - * out device enumeration logic from drivers. - */ - pa->pdev.dev.uevent_suppress = 1; } return pa ? &pa->pdev : NULL; @@ -530,7 +519,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, char *buf) { struct platform_device *pdev = to_platform_device(dev); - int len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->name); + int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name); return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; } @@ -546,7 +535,7 @@ static int platform_uevent(struct device *dev, char **envp, int num_envp, struct platform_device *pdev = to_platform_device(dev); envp[0] = buffer; - snprintf(buffer, buffer_size, "MODALIAS=%s", pdev->name); + snprintf(buffer, buffer_size, "MODALIAS=platform:%s", pdev->name); return 0; } diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c index 906bf5e8de89..e1a44020ed2b 100644 --- a/drivers/input/misc/pcspkr.c +++ b/drivers/input/misc/pcspkr.c @@ -23,6 +23,7 @@ MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("PC Speaker beeper driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pcspkr"); #ifdef CONFIG_X86 /* Use the global PIT lock ! */ diff --git a/drivers/pcmcia/pxa2xx_mainstone.c b/drivers/pcmcia/pxa2xx_mainstone.c index 383107ba4bd3..f6722ba0dd1e 100644 --- a/drivers/pcmcia/pxa2xx_mainstone.c +++ b/drivers/pcmcia/pxa2xx_mainstone.c @@ -175,7 +175,6 @@ static int __init mst_pcmcia_init(void) if (!mst_pcmcia_device) return -ENOMEM; - mst_pcmcia_device->dev.uevent_suppress = 0; mst_pcmcia_device->dev.platform_data = &mst_pcmcia_ops; ret = platform_device_add(mst_pcmcia_device); @@ -195,3 +194,4 @@ fs_initcall(mst_pcmcia_init); module_exit(mst_pcmcia_exit); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa2xx-pcmcia"); diff --git a/drivers/pcmcia/pxa2xx_sharpsl.c b/drivers/pcmcia/pxa2xx_sharpsl.c index a2daa3f531b2..d5c33bd78d68 100644 --- a/drivers/pcmcia/pxa2xx_sharpsl.c +++ b/drivers/pcmcia/pxa2xx_sharpsl.c @@ -261,7 +261,6 @@ static int __init sharpsl_pcmcia_init(void) if (!sharpsl_pcmcia_device) return -ENOMEM; - sharpsl_pcmcia_device->dev.uevent_suppress = 0; sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops; sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev; @@ -284,3 +283,4 @@ module_exit(sharpsl_pcmcia_exit); MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa2xx-pcmcia"); -- cgit v1.2.3-58-ga151 From 8380770c842faef3001e44662953d64ad9a93663 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Mon, 30 Jul 2007 02:28:56 +0200 Subject: Driver core: make sysfs uevent-attributes static Attributes do not have an owner(module) anymore, so there is no need to carry the attributes in every single bus instance. Signed-off-by: Kay Sievers Acked-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 21 +++++++++------------ include/linux/device.h | 2 -- 2 files changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 61c67526a656..ff850d1b0d92 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -568,32 +568,29 @@ static void remove_bind_files(struct device_driver *drv) driver_remove_file(drv, &driver_attr_unbind); } +static BUS_ATTR(drivers_probe, S_IWUSR, NULL, store_drivers_probe); +static BUS_ATTR(drivers_autoprobe, S_IWUSR | S_IRUGO, + show_drivers_autoprobe, store_drivers_autoprobe); + static int add_probe_files(struct bus_type *bus) { int retval; - bus->drivers_probe_attr.attr.name = "drivers_probe"; - bus->drivers_probe_attr.attr.mode = S_IWUSR; - bus->drivers_probe_attr.store = store_drivers_probe; - retval = bus_create_file(bus, &bus->drivers_probe_attr); + retval = bus_create_file(bus, &bus_attr_drivers_probe); if (retval) goto out; - bus->drivers_autoprobe_attr.attr.name = "drivers_autoprobe"; - bus->drivers_autoprobe_attr.attr.mode = S_IWUSR | S_IRUGO; - bus->drivers_autoprobe_attr.show = show_drivers_autoprobe; - bus->drivers_autoprobe_attr.store = store_drivers_autoprobe; - retval = bus_create_file(bus, &bus->drivers_autoprobe_attr); + retval = bus_create_file(bus, &bus_attr_drivers_autoprobe); if (retval) - bus_remove_file(bus, &bus->drivers_probe_attr); + bus_remove_file(bus, &bus_attr_drivers_probe); out: return retval; } static void remove_probe_files(struct bus_type *bus) { - bus_remove_file(bus, &bus->drivers_autoprobe_attr); - bus_remove_file(bus, &bus->drivers_probe_attr); + bus_remove_file(bus, &bus_attr_drivers_autoprobe); + bus_remove_file(bus, &bus_attr_drivers_probe); } #else static inline int add_bind_files(struct device_driver *drv) { return 0; } diff --git a/include/linux/device.h b/include/linux/device.h index 3a38d1f70cb7..5d97ca6d8655 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -64,8 +64,6 @@ struct bus_type { struct bus_attribute * bus_attrs; struct device_attribute * dev_attrs; struct driver_attribute * drv_attrs; - struct bus_attribute drivers_autoprobe_attr; - struct bus_attribute drivers_probe_attr; int (*match)(struct device * dev, struct device_driver * drv); int (*uevent)(struct device *dev, char **envp, -- cgit v1.2.3-58-ga151 From 7eff2e7a8b65c25920207324e56611150eb1cd9a Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Tue, 14 Aug 2007 15:15:12 +0200 Subject: Driver core: change add_uevent_var to use a struct This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers Cc: Mathieu Desnoyers Cc: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- arch/ia64/sn/kernel/tiocx.c | 3 +- arch/powerpc/kernel/of_device.c | 37 ++----- arch/powerpc/kernel/vio.c | 16 +-- arch/powerpc/platforms/ps3/system-bus.c | 9 +- block/genhd.c | 35 ++----- drivers/acpi/scan.c | 16 +-- drivers/amba/bus.c | 9 +- drivers/base/class.c | 42 ++------ drivers/base/core.c | 84 +++++----------- drivers/base/firmware_class.c | 11 +- drivers/base/memory.c | 3 +- drivers/base/platform.c | 6 +- drivers/eisa/eisa-bus.c | 9 +- drivers/firewire/fw-device.c | 11 +- drivers/firmware/dmi-id.c | 17 ++-- drivers/i2c/i2c-core.c | 8 +- drivers/ide/ide.c | 17 +--- drivers/ieee1394/nodemgr.c | 17 +--- drivers/infiniband/core/sysfs.c | 9 +- drivers/input/input.c | 62 ++++-------- drivers/input/serio/serio.c | 11 +- drivers/media/video/pvrusb2/pvrusb2-sysfs.c | 4 +- drivers/misc/tifm_core.c | 9 +- drivers/mmc/core/bus.c | 21 ++-- drivers/pci/hotplug.c | 28 ++---- drivers/pci/pci-driver.c | 3 +- drivers/pci/pci.h | 3 +- drivers/pcmcia/cs.c | 10 +- drivers/pcmcia/ds.c | 26 ++--- drivers/power/power_supply.h | 3 +- drivers/power/power_supply_sysfs.c | 17 +--- drivers/s390/cio/ccwgroup.c | 3 +- drivers/s390/cio/device.c | 25 ++--- drivers/s390/crypto/ap_bus.c | 14 +-- drivers/scsi/scsi_sysfs.c | 9 +- drivers/spi/spi.c | 7 +- drivers/usb/core/driver.c | 29 ++---- drivers/usb/core/message.c | 28 ++---- drivers/w1/w1.c | 19 ++-- include/asm-powerpc/of_device.h | 2 +- include/linux/device.h | 15 +-- include/linux/kobject.h | 23 +++-- lib/kobject_uevent.c | 149 ++++++++++++---------------- net/atm/atm_sysfs.c | 7 +- net/core/net-sysfs.c | 14 +-- net/wireless/sysfs.c | 3 +- sound/aoa/soundbus/core.c | 33 ++---- 47 files changed, 300 insertions(+), 636 deletions(-) (limited to 'drivers') diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c index 5a289e4de838..a88eba3314d7 100644 --- a/arch/ia64/sn/kernel/tiocx.c +++ b/arch/ia64/sn/kernel/tiocx.c @@ -66,8 +66,7 @@ static int tiocx_match(struct device *dev, struct device_driver *drv) } -static int tiocx_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int tiocx_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c index 89b911e83c04..8f3db32fac8b 100644 --- a/arch/powerpc/kernel/of_device.c +++ b/arch/powerpc/kernel/of_device.c @@ -57,26 +57,21 @@ ssize_t of_device_get_modalias(struct of_device *ofdev, return tsize; } -int of_device_uevent(struct device *dev, - char **envp, int num_envp, char *buffer, int buffer_size) +int of_device_uevent(struct device *dev, struct kobj_uevent_env *env) { struct of_device *ofdev; const char *compat; - int i = 0, length = 0, seen = 0, cplen, sl; + int seen = 0, cplen, sl; if (!dev) return -ENODEV; ofdev = to_of_device(dev); - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_NAME=%s", ofdev->node->name)) + if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_TYPE=%s", ofdev->node->type)) + if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type)) return -ENOMEM; /* Since the compatible field can contain pretty much anything @@ -85,9 +80,7 @@ int of_device_uevent(struct device *dev, compat = of_get_property(ofdev->node, "compatible", &cplen); while (compat && *compat && cplen > 0) { - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_COMPATIBLE_%d=%s", seen, compat)) + if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat)) return -ENOMEM; sl = strlen (compat) + 1; @@ -96,25 +89,17 @@ int of_device_uevent(struct device *dev, seen++; } - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_COMPATIBLE_N=%d", seen)) + if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen)) return -ENOMEM; /* modalias is trickier, we add it in 2 steps */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=")) + if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; - - sl = of_device_get_modalias(ofdev, &buffer[length-1], - buffer_size-length); - if (sl >= (buffer_size-length)) + sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1], + sizeof(env->buf) - env->buflen); + if (sl >= (sizeof(env->buf) - env->buflen)) return -ENOMEM; - - length += sl; - - envp[i] = NULL; + env->buflen += sl; return 0; } diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index cb22a3557c4e..19a5656001c0 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -317,30 +317,20 @@ static int vio_bus_match(struct device *dev, struct device_driver *drv) return (ids != NULL) && (vio_match_device(ids, vio_dev) != NULL); } -static int vio_hotplug(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env) { const struct vio_dev *vio_dev = to_vio_dev(dev); struct device_node *dn; const char *cp; - int length; - - if (!num_envp) - return -ENOMEM; dn = dev->archdata.of_node; if (!dn) return -ENODEV; - cp = of_get_property(dn, "compatible", &length); + cp = of_get_property(dn, "compatible", NULL); if (!cp) return -ENODEV; - envp[0] = buffer; - length = scnprintf(buffer, buffer_size, "MODALIAS=vio:T%sS%s", - vio_dev->type, cp); - if ((buffer_size - length) <= 0) - return -ENOMEM; - envp[1] = NULL; + add_uevent_var(env, "MODALIAS=vio:T%sS%s", vio_dev->type, cp); return 0; } diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 4bb634a17e43..ea0b2c790412 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -437,18 +437,13 @@ static void ps3_system_bus_shutdown(struct device *_dev) dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); } -static int ps3_system_bus_uevent(struct device *_dev, char **envp, - int num_envp, char *buffer, int buffer_size) +static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *env) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); int i = 0, length = 0; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "MODALIAS=ps3:%d", - dev->match_id)) + if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id)) return -ENOMEM; - - envp[i] = NULL; return 0; } diff --git a/block/genhd.c b/block/genhd.c index 3af1e7a378d4..e609996f2e76 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -540,61 +540,42 @@ static int block_uevent_filter(struct kset *kset, struct kobject *kobj) return ((ktype == &ktype_block) || (ktype == &ktype_part)); } -static int block_uevent(struct kset *kset, struct kobject *kobj, char **envp, - int num_envp, char *buffer, int buffer_size) +static int block_uevent(struct kset *kset, struct kobject *kobj, + struct kobj_uevent_env *env) { struct kobj_type *ktype = get_ktype(kobj); struct device *physdev; struct gendisk *disk; struct hd_struct *part; - int length = 0; - int i = 0; if (ktype == &ktype_block) { disk = container_of(kobj, struct gendisk, kobj); - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "MINOR=%u", disk->first_minor); + add_uevent_var(env, "MINOR=%u", disk->first_minor); } else if (ktype == &ktype_part) { disk = container_of(kobj->parent, struct gendisk, kobj); part = container_of(kobj, struct hd_struct, kobj); - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "MINOR=%u", + add_uevent_var(env, "MINOR=%u", disk->first_minor + part->partno); } else return 0; - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MAJOR=%u", disk->major); + add_uevent_var(env, "MAJOR=%u", disk->major); /* add physical device, backing this device */ physdev = disk->driverfs_dev; if (physdev) { char *path = kobject_get_path(&physdev->kobj, GFP_KERNEL); - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "PHYSDEVPATH=%s", path); + add_uevent_var(env, "PHYSDEVPATH=%s", path); kfree(path); if (physdev->bus) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVBUS=%s", - physdev->bus->name); + add_uevent_var(env, "PHYSDEVBUS=%s", physdev->bus->name); if (physdev->driver) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVDRIVER=%s", - physdev->driver->name); + add_uevent_var(env, physdev->driver->name); } - /* terminate, set to next free slot, shrink available space */ - envp[i] = NULL; - envp = &envp[i]; - num_envp -= i; - buffer = &buffer[length]; - buffer_size -= length; - return 0; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 64620d668742..5b4d462117cf 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -319,16 +319,18 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv) return !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } -static int acpi_device_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) { struct acpi_device *acpi_dev = to_acpi_device(dev); + int len; - strcpy(buffer, "MODALIAS="); - if (create_modalias(acpi_dev, buffer + 9, buffer_size - 9) > 0) { - envp[0] = buffer; - envp[1] = NULL; - } + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len >= (sizeof(env->buf) - env->buflen)) + return -ENOMEM; + env->buflen += len; return 0; } diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 268e301775fc..6b94fb7be5f2 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -44,15 +44,12 @@ static int amba_match(struct device *dev, struct device_driver *drv) } #ifdef CONFIG_HOTPLUG -static int amba_uevent(struct device *dev, char **envp, int nr_env, char *buf, int bufsz) +static int amba_uevent(struct device *dev, struct kobj_uevent_env *env) { struct amba_device *pcdev = to_amba_device(dev); - int retval = 0, i = 0, len = 0; + int retval = 0; - retval = add_uevent_var(envp, nr_env, &i, - buf, bufsz, &len, - "AMBA_ID=%08x", pcdev->periphid); - envp[i] = NULL; + retval = add_uevent_var(env, "AMBA_ID=%08x", pcdev->periphid); return retval; } #else diff --git a/drivers/base/class.c b/drivers/base/class.c index 4d2222618b78..ecd6336bffea 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -180,8 +180,7 @@ static void class_device_create_release(struct class_device *class_dev) /* needed to allow these devices to have parent class devices */ static int class_device_create_uevent(struct class_device *class_dev, - char **envp, int num_envp, - char *buffer, int buffer_size) + struct kobj_uevent_env *env) { pr_debug("%s called for %s\n", __FUNCTION__, class_dev->class_id); return 0; @@ -403,64 +402,43 @@ static void remove_deprecated_class_device_links(struct class_device *cd) { } #endif -static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp, - int num_envp, char *buffer, int buffer_size) +static int class_uevent(struct kset *kset, struct kobject *kobj, + struct kobj_uevent_env *env) { struct class_device *class_dev = to_class_dev(kobj); struct device *dev = class_dev->dev; - int i = 0; - int length = 0; int retval = 0; pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id); if (MAJOR(class_dev->devt)) { - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MAJOR=%u", MAJOR(class_dev->devt)); + add_uevent_var(env, "MAJOR=%u", MAJOR(class_dev->devt)); - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MINOR=%u", MINOR(class_dev->devt)); + add_uevent_var(env, "MINOR=%u", MINOR(class_dev->devt)); } if (dev) { const char *path = kobject_get_path(&dev->kobj, GFP_KERNEL); if (path) { - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVPATH=%s", path); + add_uevent_var(env, "PHYSDEVPATH=%s", path); kfree(path); } if (dev->bus) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVBUS=%s", dev->bus->name); + add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name); if (dev->driver) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVDRIVER=%s", dev->driver->name); + add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name); } - /* terminate, set to next free slot, shrink available space */ - envp[i] = NULL; - envp = &envp[i]; - num_envp -= i; - buffer = &buffer[length]; - buffer_size -= length; - if (class_dev->uevent) { /* have the class device specific function add its stuff */ - retval = class_dev->uevent(class_dev, envp, num_envp, - buffer, buffer_size); + retval = class_dev->uevent(class_dev, env); if (retval) pr_debug("class_dev->uevent() returned %d\n", retval); } else if (class_dev->class->uevent) { /* have the class specific function add its stuff */ - retval = class_dev->class->uevent(class_dev, envp, num_envp, - buffer, buffer_size); + retval = class_dev->class->uevent(class_dev, env); if (retval) pr_debug("class->uevent() returned %d\n", retval); } diff --git a/drivers/base/core.c b/drivers/base/core.c index ec86d6fc2360..d487c032dc4a 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -141,33 +141,23 @@ static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj) return NULL; } -static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp, - int num_envp, char *buffer, int buffer_size) +static int dev_uevent(struct kset *kset, struct kobject *kobj, + struct kobj_uevent_env *env) { struct device *dev = to_dev(kobj); - int i = 0; - int length = 0; int retval = 0; /* add the major/minor if present */ if (MAJOR(dev->devt)) { - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MAJOR=%u", MAJOR(dev->devt)); - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MINOR=%u", MINOR(dev->devt)); + add_uevent_var(env, "MAJOR=%u", MAJOR(dev->devt)); + add_uevent_var(env, "MINOR=%u", MINOR(dev->devt)); } if (dev->type && dev->type->name) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVTYPE=%s", dev->type->name); + add_uevent_var(env, "DEVTYPE=%s", dev->type->name); if (dev->driver) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DRIVER=%s", dev->driver->name); + add_uevent_var(env, "DRIVER=%s", dev->driver->name); #ifdef CONFIG_SYSFS_DEPRECATED if (dev->class) { @@ -181,59 +171,43 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp, path = kobject_get_path(&parent->kobj, GFP_KERNEL); if (path) { - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVPATH=%s", path); + add_uevent_var(env, "PHYSDEVPATH=%s", path); kfree(path); } - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVBUS=%s", parent->bus->name); + add_uevent_var(env, "PHYSDEVBUS=%s", parent->bus->name); if (parent->driver) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVDRIVER=%s", parent->driver->name); + add_uevent_var(env, "PHYSDEVDRIVER=%s", + parent->driver->name); } } else if (dev->bus) { - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVBUS=%s", dev->bus->name); + add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name); if (dev->driver) - add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PHYSDEVDRIVER=%s", dev->driver->name); + add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name); } #endif - /* terminate, set to next free slot, shrink available space */ - envp[i] = NULL; - envp = &envp[i]; - num_envp -= i; - buffer = &buffer[length]; - buffer_size -= length; - + /* have the bus specific function add its stuff */ if (dev->bus && dev->bus->uevent) { - /* have the bus specific function add its stuff */ - retval = dev->bus->uevent(dev, envp, num_envp, buffer, buffer_size); + retval = dev->bus->uevent(dev, env); if (retval) pr_debug ("%s: bus uevent() returned %d\n", __FUNCTION__, retval); } + /* have the class specific function add its stuff */ if (dev->class && dev->class->dev_uevent) { - /* have the class specific function add its stuff */ - retval = dev->class->dev_uevent(dev, envp, num_envp, buffer, buffer_size); + retval = dev->class->dev_uevent(dev, env); if (retval) pr_debug("%s: class uevent() returned %d\n", __FUNCTION__, retval); } + /* have the device type specific fuction add its stuff */ if (dev->type && dev->type->uevent) { - /* have the device type specific fuction add its stuff */ - retval = dev->type->uevent(dev, envp, num_envp, buffer, buffer_size); + retval = dev->type->uevent(dev, env); if (retval) pr_debug("%s: dev_type uevent() returned %d\n", __FUNCTION__, retval); @@ -253,9 +227,7 @@ static ssize_t show_uevent(struct device *dev, struct device_attribute *attr, { struct kobject *top_kobj; struct kset *kset; - char *envp[32]; - char *data = NULL; - char *pos; + struct kobj_uevent_env *env = NULL; int i; size_t count = 0; int retval; @@ -278,26 +250,20 @@ static ssize_t show_uevent(struct device *dev, struct device_attribute *attr, if (!kset->uevent_ops->filter(kset, &dev->kobj)) goto out; - data = (char *)get_zeroed_page(GFP_KERNEL); - if (!data) + env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL); + if (!env) return -ENOMEM; /* let the kset specific function add its keys */ - pos = data; - memset(envp, 0, sizeof(envp)); - retval = kset->uevent_ops->uevent(kset, &dev->kobj, - envp, ARRAY_SIZE(envp), - pos, PAGE_SIZE); + retval = kset->uevent_ops->uevent(kset, &dev->kobj, env); if (retval) goto out; /* copy keys to file */ - for (i = 0; envp[i]; i++) { - pos = &buf[count]; - count += sprintf(pos, "%s\n", envp[i]); - } + for (i = 0; i < env->envp_idx; i++) + count += sprintf(&buf[count], "%s\n", env->envp[i]); out: - free_page((unsigned long)data); + kfree(env); return count; } diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index b24efd4e3e3d..4a1b9bfc5471 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -88,19 +88,14 @@ static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store); static void fw_dev_release(struct device *dev); -static int firmware_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env) { struct firmware_priv *fw_priv = dev_get_drvdata(dev); - int i = 0, len = 0; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "FIRMWARE=%s", fw_priv->fw_id)) + if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->fw_id)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "TIMEOUT=%i", loading_timeout)) + if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout)) return -ENOMEM; - envp[i] = NULL; return 0; } diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 74b96795d2f5..cb99daeae936 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -34,8 +34,7 @@ static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj) return MEMORY_CLASS_NAME; } -static int memory_uevent(struct kset *kset, struct kobject *kobj, char **envp, - int num_envp, char *buffer, int buffer_size) +static int memory_uevent(struct kset *kset, struct kobj_uevent_env *env) { int retval = 0; diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 9bfc434d1327..a2e3910196e0 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -529,13 +529,11 @@ static struct device_attribute platform_dev_attrs[] = { __ATTR_NULL, }; -static int platform_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int platform_uevent(struct device *dev, struct kobj_uevent_env *env) { struct platform_device *pdev = to_platform_device(dev); - envp[0] = buffer; - snprintf(buffer, buffer_size, "MODALIAS=platform:%s", pdev->name); + add_uevent_var(env, "MODALIAS=platform:%s", pdev->name); return 0; } diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index d944647c82c2..4d4a47393909 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c @@ -128,16 +128,11 @@ static int eisa_bus_match (struct device *dev, struct device_driver *drv) return 0; } -static int eisa_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int eisa_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct eisa_device *edev = to_eisa_device(dev); - int i = 0; - int length = 0; - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig); - envp[i] = NULL; + add_uevent_var(env, "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig); return 0; } diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index 2b6586341635..56681b3b297b 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -130,23 +130,16 @@ static int get_modalias(struct fw_unit *unit, char *buffer, size_t buffer_size) } static int -fw_unit_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +fw_unit_uevent(struct device *dev, struct kobj_uevent_env *env) { struct fw_unit *unit = fw_unit(dev); char modalias[64]; - int length = 0; - int i = 0; get_modalias(unit, modalias, sizeof(modalias)); - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=%s", modalias)) + if (add_uevent_var(env, "MODALIAS=%s", modalias)) return -ENOMEM; - envp[i] = NULL; - return 0; } diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c index 59c3b5aa89f4..2678098d4504 100644 --- a/drivers/firmware/dmi-id.c +++ b/drivers/firmware/dmi-id.c @@ -134,14 +134,17 @@ static struct attribute_group* sys_dmi_attribute_groups[] = { NULL }; -static int dmi_dev_uevent(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size) +static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env) { - strcpy(buffer, "MODALIAS="); - get_modalias(buffer+9, buffer_size-9); - envp[0] = buffer; - envp[1] = NULL; - + ssize_t len; + + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + len = get_modalias(&env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len >= (sizeof(env->buf) - env->buflen)) + return -ENOMEM; + env->buflen += len; return 0; } diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index d663e6960d93..910a62de190d 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -67,20 +67,16 @@ static int i2c_device_match(struct device *dev, struct device_driver *drv) #ifdef CONFIG_HOTPLUG /* uevent helps with hotplug: modprobe -q $(MODALIAS) */ -static int i2c_device_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int i2c_device_uevent(struct device *dev, struct kobj_uevent_env *env) { struct i2c_client *client = to_i2c_client(dev); - int i = 0, length = 0; /* by definition, legacy drivers can't hotplug */ if (dev->driver || !client->driver_name) return 0; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MODALIAS=%s", client->driver_name)) + if (add_uevent_var(env, "MODALIAS=%s", client->driver_name)) return -ENOMEM; - envp[i] = NULL; dev_dbg(dev, "uevent\n"); return 0; } diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index e96212ce5729..a96a8b1b3539 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1663,20 +1663,13 @@ static struct device_attribute ide_dev_attrs[] = { __ATTR_NULL }; -static int ide_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int ide_uevent(struct device *dev, struct kobj_uevent_env *env) { ide_drive_t *drive = to_ide_device(dev); - int i = 0; - int length = 0; - - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MEDIA=%s", media_string(drive)); - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "DRIVENAME=%s", drive->name); - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MODALIAS=ide:m-%s", media_string(drive)); - envp[i] = NULL; + + add_uevent_var(env, "MEDIA=%s", media_string(drive)); + add_uevent_var(env, "DRIVENAME=%s", drive->name); + add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive)); return 0; } diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 2ffd53461db6..1939fee616ec 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -153,8 +153,7 @@ struct host_info { }; static int nodemgr_bus_match(struct device * dev, struct device_driver * drv); -static int nodemgr_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size); +static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env); static void nodemgr_resume_ne(struct node_entry *ne); static void nodemgr_remove_ne(struct node_entry *ne); static struct node_entry *find_entry_by_guid(u64 guid); @@ -1160,12 +1159,9 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent #ifdef CONFIG_HOTPLUG -static int nodemgr_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env) { struct unit_directory *ud; - int i = 0; - int length = 0; int retval = 0; /* ieee1394:venNmoNspNverN */ char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1]; @@ -1180,9 +1176,7 @@ static int nodemgr_uevent(struct device *dev, char **envp, int num_envp, #define PUT_ENVP(fmt,val) \ do { \ - retval = add_uevent_var(envp, num_envp, &i, \ - buffer, buffer_size, &length, \ - fmt, val); \ + retval = add_uevent_var(env, fmt, val); \ if (retval) \ return retval; \ } while (0) @@ -1201,15 +1195,12 @@ do { \ #undef PUT_ENVP - envp[i] = NULL; - return 0; } #else -static int nodemgr_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 70b77ae67422..3d4050681325 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -434,21 +434,18 @@ static void ib_device_release(struct class_device *cdev) kfree(dev); } -static int ib_device_uevent(struct class_device *cdev, char **envp, - int num_envp, char *buf, int size) +static int ib_device_uevent(struct class_device *cdev, + struct kobj_uevent_env *env) { struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); - int i = 0, len = 0; - if (add_uevent_var(envp, num_envp, &i, buf, size, &len, - "NAME=%s", dev->name)) + if (add_uevent_var(env, "NAME=%s", dev->name)) return -ENOMEM; /* * It would be nice to pass the node GUID with the event... */ - envp[i] = NULL; return 0; } diff --git a/drivers/input/input.c b/drivers/input/input.c index 5fe755586623..5dc361c954e2 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -859,87 +859,66 @@ static void input_dev_release(struct device *device) * Input uevent interface - loading event handlers based on * device bitfields. */ -static int input_add_uevent_bm_var(char **envp, int num_envp, int *cur_index, - char *buffer, int buffer_size, int *cur_len, +static int input_add_uevent_bm_var(struct kobj_uevent_env *env, const char *name, unsigned long *bitmap, int max) { - if (*cur_index >= num_envp - 1) - return -ENOMEM; - - envp[*cur_index] = buffer + *cur_len; + int len; - *cur_len += snprintf(buffer + *cur_len, max(buffer_size - *cur_len, 0), name); - if (*cur_len >= buffer_size) + if (add_uevent_var(env, "%s=", name)) return -ENOMEM; - *cur_len += input_print_bitmap(buffer + *cur_len, - max(buffer_size - *cur_len, 0), - bitmap, max, 0) + 1; - if (*cur_len > buffer_size) + len = input_print_bitmap(&env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen, + bitmap, max, 0); + if (len >= (sizeof(env->buf) - env->buflen)) return -ENOMEM; - (*cur_index)++; + env->buflen += len; return 0; } -static int input_add_uevent_modalias_var(char **envp, int num_envp, int *cur_index, - char *buffer, int buffer_size, int *cur_len, +static int input_add_uevent_modalias_var(struct kobj_uevent_env *env, struct input_dev *dev) { - if (*cur_index >= num_envp - 1) - return -ENOMEM; - - envp[*cur_index] = buffer + *cur_len; + int len; - *cur_len += snprintf(buffer + *cur_len, max(buffer_size - *cur_len, 0), - "MODALIAS="); - if (*cur_len >= buffer_size) + if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; - *cur_len += input_print_modalias(buffer + *cur_len, - max(buffer_size - *cur_len, 0), - dev, 0) + 1; - if (*cur_len > buffer_size) + len = input_print_modalias(&env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen, + dev, 0); + if (len >= (sizeof(env->buf) - env->buflen)) return -ENOMEM; - (*cur_index)++; + env->buflen += len; return 0; } #define INPUT_ADD_HOTPLUG_VAR(fmt, val...) \ do { \ - int err = add_uevent_var(envp, num_envp, &i, \ - buffer, buffer_size, &len, \ - fmt, val); \ + int err = add_uevent_var(env, fmt, val); \ if (err) \ return err; \ } while (0) #define INPUT_ADD_HOTPLUG_BM_VAR(name, bm, max) \ do { \ - int err = input_add_uevent_bm_var(envp, num_envp, &i, \ - buffer, buffer_size, &len, \ - name, bm, max); \ + int err = input_add_uevent_bm_var(env, name, bm, max); \ if (err) \ return err; \ } while (0) #define INPUT_ADD_HOTPLUG_MODALIAS_VAR(dev) \ do { \ - int err = input_add_uevent_modalias_var(envp, \ - num_envp, &i, \ - buffer, buffer_size, &len, \ - dev); \ + int err = input_add_uevent_modalias_var(env, dev); \ if (err) \ return err; \ } while (0) -static int input_dev_uevent(struct device *device, char **envp, - int num_envp, char *buffer, int buffer_size) +static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env) { struct input_dev *dev = to_input_dev(device); - int i = 0; - int len = 0; INPUT_ADD_HOTPLUG_VAR("PRODUCT=%x/%x/%x/%x", dev->id.bustype, dev->id.vendor, @@ -971,7 +950,6 @@ static int input_dev_uevent(struct device *device, char **envp, INPUT_ADD_HOTPLUG_MODALIAS_VAR(dev); - envp[i] = NULL; return 0; } diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index 372ca4931194..b3bc15acd3f5 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -876,18 +876,14 @@ static int serio_bus_match(struct device *dev, struct device_driver *drv) #define SERIO_ADD_UEVENT_VAR(fmt, val...) \ do { \ - int err = add_uevent_var(envp, num_envp, &i, \ - buffer, buffer_size, &len, \ - fmt, val); \ + int err = add_uevent_var(env, fmt, val); \ if (err) \ return err; \ } while (0) -static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size) +static int serio_uevent(struct device *dev, struct kobj_uevent_env *env) { struct serio *serio; - int i = 0; - int len = 0; if (!dev) return -ENODEV; @@ -900,7 +896,6 @@ static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buf SERIO_ADD_UEVENT_VAR("SERIO_EXTRA=%02x", serio->id.extra); SERIO_ADD_UEVENT_VAR("MODALIAS=serio:ty%02Xpr%02Xid%02Xex%02X", serio->id.type, serio->id.proto, serio->id.id, serio->id.extra); - envp[i] = NULL; return 0; } @@ -908,7 +903,7 @@ static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buf #else -static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size) +static int serio_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c index 7a78d6b34738..2ee3c3049e8f 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c +++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c @@ -905,8 +905,8 @@ struct pvr2_sysfs *pvr2_sysfs_create(struct pvr2_context *mp, } -static int pvr2_sysfs_hotplug(struct device *cd,char **envp, - int numenvp,char *buf,int size) +static int pvr2_sysfs_hotplug(struct device *d, + struct kobj_uevent_env *env) { /* Even though we don't do anything here, we still need this function because sysfs will still try to call it. */ diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c index d195fb088f4a..8f77949f93dd 100644 --- a/drivers/misc/tifm_core.c +++ b/drivers/misc/tifm_core.c @@ -57,16 +57,11 @@ static int tifm_bus_match(struct device *dev, struct device_driver *drv) return 0; } -static int tifm_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int tifm_uevent(struct device *dev, struct kobj_uevent_env *env) { struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); - int i = 0; - int length = 0; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "TIFM_CARD_TYPE=%s", - tifm_media_type_name(sock->type, 1))) + if (add_uevent_var(env, "TIFM_CARD_TYPE=%s", tifm_media_type_name(sock->type, 1))) return -ENOMEM; return 0; diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 8d6f6014870f..b0c22cad9423 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -58,12 +58,11 @@ static int mmc_bus_match(struct device *dev, struct device_driver *drv) } static int -mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf, - int buf_size) +mmc_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct mmc_card *card = dev_to_mmc_card(dev); const char *type; - int i = 0, length = 0; + int retval = 0; switch (card->type) { case MMC_TYPE_MMC: @@ -80,20 +79,14 @@ mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf, } if (type) { - if (add_uevent_var(envp, num_envp, &i, - buf, buf_size, &length, - "MMC_TYPE=%s", type)) - return -ENOMEM; + retval = add_uevent_var(env, "MMC_TYPE=%s", type); + if (retval) + return retval; } - if (add_uevent_var(envp, num_envp, &i, - buf, buf_size, &length, - "MMC_NAME=%s", mmc_card_name(card))) - return -ENOMEM; + retval = add_uevent_var(env, "MMC_NAME=%s", mmc_card_name(card)); - envp[i] = NULL; - - return 0; + return retval; } static int mmc_bus_probe(struct device *dev) diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c index 1c97e7dd130b..2b5352a7dffc 100644 --- a/drivers/pci/hotplug.c +++ b/drivers/pci/hotplug.c @@ -3,12 +3,9 @@ #include #include "pci.h" -int pci_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +int pci_uevent(struct device *dev, struct kobj_uevent_env *env) { struct pci_dev *pdev; - int i = 0; - int length = 0; if (!dev) return -ENODEV; @@ -17,37 +14,24 @@ int pci_uevent(struct device *dev, char **envp, int num_envp, if (!pdev) return -ENODEV; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PCI_CLASS=%04X", pdev->class)) + if (add_uevent_var(env, "PCI_CLASS=%04X", pdev->class)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PCI_ID=%04X:%04X", pdev->vendor, pdev->device)) + if (add_uevent_var(env, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor, + if (add_uevent_var(env, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor, pdev->subsystem_device)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PCI_SLOT_NAME=%s", pci_name(pdev))) + if (add_uevent_var(env, "PCI_SLOT_NAME=%s", pci_name(pdev))) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x", + if (add_uevent_var(env, "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x", pdev->vendor, pdev->device, pdev->subsystem_vendor, pdev->subsystem_device, (u8)(pdev->class >> 16), (u8)(pdev->class >> 8), (u8)(pdev->class))) return -ENOMEM; - - envp[i] = NULL; - return 0; } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 004bc2487270..f61be3abfdca 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -532,8 +532,7 @@ void pci_dev_put(struct pci_dev *dev) } #ifndef CONFIG_HOTPLUG -int pci_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +int pci_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4c36e80f6d26..b3a7d5b0f936 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -1,7 +1,6 @@ /* Functions internal to the PCI core code */ -extern int pci_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size); +extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env); extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev); extern void pci_cleanup_rom(struct pci_dev *dev); diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index f8b13f0270d7..a0aca46ce877 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -907,18 +907,14 @@ int pcmcia_insert_card(struct pcmcia_socket *skt) EXPORT_SYMBOL(pcmcia_insert_card); -static int pcmcia_socket_uevent(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size) +static int pcmcia_socket_uevent(struct device *dev, + struct kobj_uevent_env *env) { struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev); - int i = 0, length = 0; - if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "SOCKET_NO=%u", s->sock)) + if (add_uevent_var(env, "SOCKET_NO=%u", s->sock)) return -ENOMEM; - envp[i] = NULL; - return 0; } diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index a99607142fc8..55baa1f0fcbb 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -1064,11 +1064,10 @@ static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { #ifdef CONFIG_HOTPLUG -static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct pcmcia_device *p_dev; - int i, length = 0; + int i; u32 hash[4] = { 0, 0, 0, 0}; if (!dev) @@ -1083,23 +1082,13 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); } - i = 0; - - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "SOCKET_NO=%u", - p_dev->socket->sock)) + if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVICE_NO=%02X", - p_dev->device_no)) + if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" + if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" "pa%08Xpb%08Xpc%08Xpd%08X", p_dev->has_manf_id ? p_dev->manf_id : 0, p_dev->has_card_id ? p_dev->card_id : 0, @@ -1112,15 +1101,12 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, hash[3])) return -ENOMEM; - envp[i] = NULL; - return 0; } #else -static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h index a9880d468ee4..f38ba482be75 100644 --- a/drivers/power/power_supply.h +++ b/drivers/power/power_supply.h @@ -14,8 +14,7 @@ extern int power_supply_create_attrs(struct power_supply *psy); extern void power_supply_remove_attrs(struct power_supply *psy); -extern int power_supply_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size); +extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env); #else diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index de3155b21285..249f61bae639 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -195,11 +195,10 @@ static char *kstruprdup(const char *str, gfp_t gfp) return ret; } -int power_supply_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env) { struct power_supply *psy = dev_get_drvdata(dev); - int i = 0, length = 0, ret = 0, j; + int ret = 0, j; char *prop_buf; char *attrname; @@ -212,8 +211,7 @@ int power_supply_uevent(struct device *dev, char **envp, int num_envp, dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->name); - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "POWER_SUPPLY_NAME=%s", psy->name); + ret = add_uevent_var(env, "POWER_SUPPLY_NAME=%s", psy->name); if (ret) return ret; @@ -243,9 +241,7 @@ int power_supply_uevent(struct device *dev, char **envp, int num_envp, dev_dbg(dev, "Static prop %s=%s\n", attrname, prop_buf); - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "POWER_SUPPLY_%s=%s", - attrname, prop_buf); + ret = add_uevent_var(env, "POWER_SUPPLY_%s=%s", attrname, prop_buf); kfree(attrname); if (ret) goto out; @@ -282,14 +278,11 @@ int power_supply_uevent(struct device *dev, char **envp, int num_envp, dev_dbg(dev, "prop %s=%s\n", attrname, prop_buf); - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, - &length, "POWER_SUPPLY_%s=%s", - attrname, prop_buf); + ret = add_uevent_var(env, "POWER_SUPPLY_%s=%s", attrname, prop_buf); kfree(attrname); if (ret) goto out; } - envp[i] = NULL; out: free_page((unsigned long)prop_buf); diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index b0a18f5176aa..5d967c439822 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -44,8 +44,7 @@ ccwgroup_bus_match (struct device * dev, struct device_driver * drv) return 0; } static int -ccwgroup_uevent (struct device *dev, char **envp, int num_envp, char *buffer, - int buffer_size) +ccwgroup_uevent (struct device *dev, struct kobj_uevent_env *env) { /* TODO */ return 0; diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index e44d92eac8e9..606bb53e9fae 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -78,49 +78,38 @@ static int snprint_alias(char *buf, size_t size, /* Set up environment variables for ccw device uevent. Return 0 on success, * non-zero otherwise. */ -static int ccw_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int ccw_uevent(struct device *dev, struct kobj_uevent_env *env) { struct ccw_device *cdev = to_ccwdev(dev); struct ccw_device_id *id = &(cdev->id); - int i = 0; - int len = 0; int ret; char modalias_buf[30]; /* CU_TYPE= */ - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "CU_TYPE=%04X", id->cu_type); + ret = add_uevent_var(env, "CU_TYPE=%04X", id->cu_type); if (ret) return ret; /* CU_MODEL= */ - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "CU_MODEL=%02X", id->cu_model); + ret = add_uevent_var(env, "CU_MODEL=%02X", id->cu_model); if (ret) return ret; /* The next two can be zero, that's ok for us */ /* DEV_TYPE= */ - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "DEV_TYPE=%04X", id->dev_type); + ret = add_uevent_var(env, "DEV_TYPE=%04X", id->dev_type); if (ret) return ret; /* DEV_MODEL= */ - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "DEV_MODEL=%02X", id->dev_model); + ret = add_uevent_var(env, "DEV_MODEL=%02X", id->dev_model); if (ret) return ret; /* MODALIAS= */ snprint_alias(modalias_buf, sizeof(modalias_buf), id, ""); - ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len, - "MODALIAS=%s", modalias_buf); - if (ret) - return ret; - envp[i] = NULL; - return 0; + ret = add_uevent_var(env, "MODALIAS=%s", modalias_buf); + return ret; } struct bus_type ccw_bus_type; diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 90bd22014513..e99713041591 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -458,28 +458,22 @@ static int ap_bus_match(struct device *dev, struct device_driver *drv) * uevent function for AP devices. It sets up a single environment * variable DEV_TYPE which contains the hardware device type. */ -static int ap_uevent (struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int ap_uevent (struct device *dev, struct kobj_uevent_env *env) { struct ap_device *ap_dev = to_ap_dev(dev); - int retval = 0, length = 0, i = 0; + int retval = 0; if (!ap_dev) return -ENODEV; /* Set up DEV_TYPE environment variable. */ - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEV_TYPE=%04X", ap_dev->device_type); + retval = add_uevent_var(env, "DEV_TYPE=%04X", ap_dev->device_type); if (retval) return retval; /* Add MODALIAS= */ - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=ap:t%02X", ap_dev->device_type); + retval = add_uevent_var(env, "MODALIAS=ap:t%02X", ap_dev->device_type); - envp[i] = NULL; return retval; } diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 34cdce6738a6..ede9986d349a 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -277,16 +277,11 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv) return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0; } -static int scsi_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct scsi_device *sdev = to_scsi_device(dev); - int i = 0; - int length = 0; - add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, - "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type); - envp[i] = NULL; + add_uevent_var(env, "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type); return 0; } diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index e84d21597943..bcb8dd5fb0b4 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -67,14 +67,11 @@ static int spi_match_device(struct device *dev, struct device_driver *drv) return strncmp(spi->modalias, drv->name, BUS_ID_SIZE) == 0; } -static int spi_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int spi_uevent(struct device *dev, struct kobj_uevent_env *env) { const struct spi_device *spi = to_spi_device(dev); - envp[0] = buffer; - snprintf(buffer, buffer_size, "MODALIAS=%s", spi->modalias); - envp[1] = NULL; + add_uevent_var(env, "MODALIAS=%s", spi->modalias); return 0; } diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 63b1243a9139..6273a5197e6a 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -576,12 +576,9 @@ static int usb_device_match(struct device *dev, struct device_driver *drv) } #ifdef CONFIG_HOTPLUG -static int usb_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int usb_uevent(struct device *dev, struct kobj_uevent_env *env) { struct usb_device *usb_dev; - int i = 0; - int length = 0; if (!dev) return -ENODEV; @@ -610,51 +607,39 @@ static int usb_uevent(struct device *dev, char **envp, int num_envp, * all the device descriptors we don't tell them about. Or * act as usermode drivers. */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVICE=/proc/bus/usb/%03d/%03d", + if (add_uevent_var(env, "DEVICE=/proc/bus/usb/%03d/%03d", usb_dev->bus->busnum, usb_dev->devnum)) return -ENOMEM; #endif /* per-device configurations are common */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PRODUCT=%x/%x/%x", + if (add_uevent_var(env, "PRODUCT=%x/%x/%x", le16_to_cpu(usb_dev->descriptor.idVendor), le16_to_cpu(usb_dev->descriptor.idProduct), le16_to_cpu(usb_dev->descriptor.bcdDevice))) return -ENOMEM; /* class-based driver binding models */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "TYPE=%d/%d/%d", + if (add_uevent_var(env, "TYPE=%d/%d/%d", usb_dev->descriptor.bDeviceClass, usb_dev->descriptor.bDeviceSubClass, usb_dev->descriptor.bDeviceProtocol)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "BUSNUM=%03d", + if (add_uevent_var(env, "BUSNUM=%03d", usb_dev->bus->busnum)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVNUM=%03d", + if (add_uevent_var(env, "DEVNUM=%03d", usb_dev->devnum)) return -ENOMEM; - envp[i] = NULL; return 0; } #else -static int usb_uevent(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size) +static int usb_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index d8f7b089a8f0..95a49d8efe7a 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1339,14 +1339,11 @@ void usb_release_interface(struct device *dev) } #ifdef CONFIG_HOTPLUG -static int usb_if_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int usb_if_uevent(struct device *dev, struct kobj_uevent_env *env) { struct usb_device *usb_dev; struct usb_interface *intf; struct usb_host_interface *alt; - int i = 0; - int length = 0; if (!dev) return -ENODEV; @@ -1359,39 +1356,30 @@ static int usb_if_uevent(struct device *dev, char **envp, int num_envp, alt = intf->cur_altsetting; #ifdef CONFIG_USB_DEVICEFS - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVICE=/proc/bus/usb/%03d/%03d", + if (add_uevent_var(env, "DEVICE=/proc/bus/usb/%03d/%03d", usb_dev->bus->busnum, usb_dev->devnum)) return -ENOMEM; #endif - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PRODUCT=%x/%x/%x", + if (add_uevent_var(env, "PRODUCT=%x/%x/%x", le16_to_cpu(usb_dev->descriptor.idVendor), le16_to_cpu(usb_dev->descriptor.idProduct), le16_to_cpu(usb_dev->descriptor.bcdDevice))) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "TYPE=%d/%d/%d", + if (add_uevent_var(env, "TYPE=%d/%d/%d", usb_dev->descriptor.bDeviceClass, usb_dev->descriptor.bDeviceSubClass, usb_dev->descriptor.bDeviceProtocol)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "INTERFACE=%d/%d/%d", + if (add_uevent_var(env, "INTERFACE=%d/%d/%d", alt->desc.bInterfaceClass, alt->desc.bInterfaceSubClass, alt->desc.bInterfaceProtocol)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, + if (add_uevent_var(env, "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X", le16_to_cpu(usb_dev->descriptor.idVendor), le16_to_cpu(usb_dev->descriptor.idProduct), @@ -1404,14 +1392,12 @@ static int usb_if_uevent(struct device *dev, char **envp, int num_envp, alt->desc.bInterfaceProtocol)) return -ENOMEM; - envp[i] = NULL; return 0; } #else -static int usb_if_uevent(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size) +static int usb_if_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index a593f900eff4..070217322c9f 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -197,7 +197,7 @@ static struct w1_family w1_default_family = { .fops = &w1_default_fops, }; -static int w1_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); +static int w1_uevent(struct device *dev, struct kobj_uevent_env *env); static struct bus_type w1_bus_type = { .name = "w1", @@ -396,13 +396,12 @@ static void w1_destroy_master_attributes(struct w1_master *master) } #ifdef CONFIG_HOTPLUG -static int w1_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int w1_uevent(struct device *dev, struct kobj_uevent_env *env) { struct w1_master *md = NULL; struct w1_slave *sl = NULL; char *event_owner, *name; - int err, cur_index=0, cur_len=0; + int err; if (dev->driver == &w1_master_driver) { md = container_of(dev, struct w1_master, dev); @@ -423,23 +422,19 @@ static int w1_uevent(struct device *dev, char **envp, int num_envp, if (dev->driver != &w1_slave_driver || !sl) return 0; - err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, - &cur_len, "W1_FID=%02X", sl->reg_num.family); + err = add_uevent_var(env, "W1_FID=%02X", sl->reg_num.family); if (err) return err; - err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, - &cur_len, "W1_SLAVE_ID=%024LX", - (unsigned long long)sl->reg_num.id); - envp[cur_index] = NULL; + err = add_uevent_var(env, "W1_SLAVE_ID=%024LX", + (unsigned long long)sl->reg_num.id); if (err) return err; return 0; }; #else -static int w1_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int w1_uevent(struct device *dev, struct kobj_uevent_env *env) { return 0; } diff --git a/include/asm-powerpc/of_device.h b/include/asm-powerpc/of_device.h index ec2a8a2c737c..93262f2546ad 100644 --- a/include/asm-powerpc/of_device.h +++ b/include/asm-powerpc/of_device.h @@ -20,7 +20,7 @@ struct of_device extern ssize_t of_device_get_modalias(struct of_device *ofdev, char *str, ssize_t len); extern int of_device_uevent(struct device *dev, - char **envp, int num_envp, char *buffer, int buffer_size); + struct kobj_uevent_env *env); /* This is just here during the transition */ #include diff --git a/include/linux/device.h b/include/linux/device.h index 5d97ca6d8655..2e15822fe409 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -66,8 +66,7 @@ struct bus_type { struct driver_attribute * drv_attrs; int (*match)(struct device * dev, struct device_driver * drv); - int (*uevent)(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); int (*probe)(struct device * dev); int (*remove)(struct device * dev); void (*shutdown)(struct device * dev); @@ -187,10 +186,8 @@ struct class { struct class_device_attribute * class_dev_attrs; struct device_attribute * dev_attrs; - int (*uevent)(struct class_device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); - int (*dev_uevent)(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size); + int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env); + int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); void (*release)(struct class_device *dev); void (*class_release)(struct class *class); @@ -266,8 +263,7 @@ struct class_device { struct attribute_group ** groups; /* optional groups */ void (*release)(struct class_device *dev); - int (*uevent)(struct class_device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); + int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env); char class_id[BUS_ID_SIZE]; /* unique to this class */ }; @@ -335,8 +331,7 @@ extern void class_device_destroy(struct class *cls, dev_t devt); struct device_type { const char *name; struct attribute_group **groups; - int (*uevent)(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size); + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); void (*release)(struct device *dev); int (*suspend)(struct device * dev, pm_message_t state); int (*resume)(struct device * dev); diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 949706c33622..626bdd3c3dd9 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -29,6 +29,8 @@ #define KOBJ_NAME_LEN 20 #define UEVENT_HELPER_PATH_LEN 256 +#define UEVENT_NUM_ENVP 32 /* number of env pointers */ +#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ /* path to the userspace helper executed on an event */ extern char uevent_helper[]; @@ -111,11 +113,18 @@ struct kobj_type { struct attribute ** default_attrs; }; +struct kobj_uevent_env { + char *envp[UEVENT_NUM_ENVP]; + int envp_idx; + char buf[UEVENT_BUFFER_SIZE]; + int buflen; +}; + struct kset_uevent_ops { int (*filter)(struct kset *kset, struct kobject *kobj); const char *(*name)(struct kset *kset, struct kobject *kobj); - int (*uevent)(struct kset *kset, struct kobject *kobj, char **envp, - int num_envp, char *buffer, int buffer_size); + int (*uevent)(struct kset *kset, struct kobject *kobj, + struct kobj_uevent_env *env); }; /* @@ -275,10 +284,8 @@ int kobject_uevent(struct kobject *kobj, enum kobject_action action); int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, char *envp[]); -int add_uevent_var(char **envp, int num_envp, int *cur_index, - char *buffer, int buffer_size, int *cur_len, - const char *format, ...) - __attribute__((format (printf, 7, 8))); +int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) + __attribute__((format (printf, 2, 3))); #else static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action) { return 0; } @@ -287,9 +294,7 @@ static inline int kobject_uevent_env(struct kobject *kobj, char *envp[]) { return 0; } -static inline int add_uevent_var(char **envp, int num_envp, int *cur_index, - char *buffer, int buffer_size, int *cur_len, - const char *format, ...) +static inline int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) { return 0; } #endif diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index e06a8dcec0f0..7d8aeb301635 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -22,8 +22,6 @@ #include #include -#define BUFFER_SIZE 2048 /* buffer for the variables */ -#define NUM_ENVP 32 /* number of env pointers */ /* the strings here must match the enum in include/linux/kobject.h */ const char *kobject_actions[] = { @@ -54,31 +52,21 @@ static struct sock *uevent_sock; * corresponding error when it fails. */ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, - char *envp_ext[]) + char *envp_ext[]) { - char **envp; - char *buffer; - char *scratch; - const char *action_string; + struct kobj_uevent_env *env; + const char *action_string = kobject_actions[action]; const char *devpath = NULL; const char *subsystem; struct kobject *top_kobj; struct kset *kset; struct kset_uevent_ops *uevent_ops; u64 seq; - char *seq_buff; int i = 0; int retval = 0; - int j; pr_debug("%s\n", __FUNCTION__); - action_string = kobject_actions[action]; - if (!action_string) { - pr_debug("kobject attempted to send uevent without action_string!\n"); - return -EINVAL; - } - /* search the kset we belong to */ top_kobj = kobj; while (!top_kobj->kset && top_kobj->parent) { @@ -92,7 +80,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, kset = top_kobj->kset; uevent_ops = kset->uevent_ops; - /* skip the event, if the filter returns zero. */ + /* skip the event, if the filter returns zero. */ if (uevent_ops && uevent_ops->filter) if (!uevent_ops->filter(kset, kobj)) { pr_debug("kobject filter function caused the event to drop!\n"); @@ -109,18 +97,11 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, return 0; } - /* environment index */ - envp = kzalloc(NUM_ENVP * sizeof (char *), GFP_KERNEL); - if (!envp) + /* environment buffer */ + env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL); + if (!env) return -ENOMEM; - /* environment values */ - buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL); - if (!buffer) { - retval = -ENOMEM; - goto exit; - } - /* complete object path */ devpath = kobject_get_path(kobj, GFP_KERNEL); if (!devpath) { @@ -128,29 +109,29 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, goto exit; } - /* event environemnt for helper process only */ - envp[i++] = "HOME=/"; - envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; - /* default keys */ - scratch = buffer; - envp [i++] = scratch; - scratch += sprintf(scratch, "ACTION=%s", action_string) + 1; - envp [i++] = scratch; - scratch += sprintf (scratch, "DEVPATH=%s", devpath) + 1; - envp [i++] = scratch; - scratch += sprintf(scratch, "SUBSYSTEM=%s", subsystem) + 1; - for (j = 0; envp_ext && envp_ext[j]; j++) - envp[i++] = envp_ext[j]; - /* just reserve the space, overwrite it after kset call has returned */ - envp[i++] = seq_buff = scratch; - scratch += strlen("SEQNUM=18446744073709551616") + 1; + retval = add_uevent_var(env, "ACTION=%s", action_string); + if (retval) + goto exit; + retval = add_uevent_var(env, "DEVPATH=%s", devpath); + if (retval) + goto exit; + retval = add_uevent_var(env, "SUBSYSTEM=%s", subsystem); + if (retval) + goto exit; + + /* keys passed in from the caller */ + if (envp_ext) { + for (i = 0; envp_ext[i]; i++) { + retval = add_uevent_var(env, envp_ext[i]); + if (retval) + goto exit; + } + } /* let the kset specific function add its stuff */ if (uevent_ops && uevent_ops->uevent) { - retval = uevent_ops->uevent(kset, kobj, - &envp[i], NUM_ENVP - i, scratch, - BUFFER_SIZE - (scratch - buffer)); + retval = uevent_ops->uevent(kset, kobj, env); if (retval) { pr_debug ("%s - uevent() returned %d\n", __FUNCTION__, retval); @@ -158,11 +139,13 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, } } - /* we will send an event, request a new sequence number */ + /* we will send an event, so request a new sequence number */ spin_lock(&sequence_lock); seq = ++uevent_seqnum; spin_unlock(&sequence_lock); - sprintf(seq_buff, "SEQNUM=%llu", (unsigned long long)seq); + retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq); + if (retval) + goto exit; #if defined(CONFIG_NET) /* send netlink message */ @@ -172,17 +155,19 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, /* allocate message with the maximum possible size */ len = strlen(action_string) + strlen(devpath) + 2; - skb = alloc_skb(len + BUFFER_SIZE, GFP_KERNEL); + skb = alloc_skb(len + env->buflen, GFP_KERNEL); if (skb) { + char *scratch; + /* add header */ scratch = skb_put(skb, len); sprintf(scratch, "%s@%s", action_string, devpath); /* copy keys to our continuous event payload buffer */ - for (i = 2; envp[i]; i++) { - len = strlen(envp[i]) + 1; + for (i = 0; i < env->envp_idx; i++) { + len = strlen(env->envp[i]) + 1; scratch = skb_put(skb, len); - strcpy(scratch, envp[i]); + strcpy(scratch, env->envp[i]); } NETLINK_CB(skb).dst_group = 1; @@ -198,13 +183,19 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, argv [0] = uevent_helper; argv [1] = (char *)subsystem; argv [2] = NULL; - call_usermodehelper (argv[0], argv, envp, UMH_WAIT_EXEC); + retval = add_uevent_var(env, "HOME=/"); + if (retval) + goto exit; + retval = add_uevent_var(env, "PATH=/sbin:/bin:/usr/sbin:/usr/bin"); + if (retval) + goto exit; + + call_usermodehelper (argv[0], argv, env->envp, UMH_WAIT_EXEC); } exit: kfree(devpath); - kfree(buffer); - kfree(envp); + kfree(env); return retval; } @@ -227,52 +218,38 @@ int kobject_uevent(struct kobject *kobj, enum kobject_action action) EXPORT_SYMBOL_GPL(kobject_uevent); /** - * add_uevent_var - helper for creating event variables - * @envp: Pointer to table of environment variables, as passed into - * uevent() method. - * @num_envp: Number of environment variable slots available, as - * passed into uevent() method. - * @cur_index: Pointer to current index into @envp. It should be - * initialized to 0 before the first call to add_uevent_var(), - * and will be incremented on success. - * @buffer: Pointer to buffer for environment variables, as passed - * into uevent() method. - * @buffer_size: Length of @buffer, as passed into uevent() method. - * @cur_len: Pointer to current length of space used in @buffer. - * Should be initialized to 0 before the first call to - * add_uevent_var(), and will be incremented on success. - * @format: Format for creating environment variable (of the form - * "XXX=%x") for snprintf(). + * add_uevent_var - add key value string to the environment buffer + * @env: environment buffer structure + * @format: printf format for the key=value pair * * Returns 0 if environment variable was added successfully or -ENOMEM * if no space was available. */ -int add_uevent_var(char **envp, int num_envp, int *cur_index, - char *buffer, int buffer_size, int *cur_len, - const char *format, ...) +int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) { va_list args; + int len; - /* - * We check against num_envp - 1 to make sure there is at - * least one slot left after we return, since kobject_uevent() - * needs to set the last slot to NULL. - */ - if (*cur_index >= num_envp - 1) + if (env->envp_idx >= ARRAY_SIZE(env->envp)) { + printk(KERN_ERR "add_uevent_var: too many keys\n"); + WARN_ON(1); return -ENOMEM; - - envp[*cur_index] = buffer + *cur_len; + } va_start(args, format); - *cur_len += vsnprintf(envp[*cur_index], - max(buffer_size - *cur_len, 0), - format, args) + 1; + len = vsnprintf(&env->buf[env->buflen], + sizeof(env->buf) - env->buflen, + format, args); va_end(args); - if (*cur_len > buffer_size) + if (len >= (sizeof(env->buf) - env->buflen)) { + printk(KERN_ERR "add_uevent_var: buffer size too small\n"); + WARN_ON(1); return -ENOMEM; + } - (*cur_index)++; + env->envp[env->envp_idx++] = &env->buf[env->buflen]; + env->buflen += len + 1; return 0; } EXPORT_SYMBOL_GPL(add_uevent_var); diff --git a/net/atm/atm_sysfs.c b/net/atm/atm_sysfs.c index f094a0879c16..9ef07eda2c43 100644 --- a/net/atm/atm_sysfs.c +++ b/net/atm/atm_sysfs.c @@ -105,10 +105,9 @@ static struct class_device_attribute *atm_attrs[] = { NULL }; -static int atm_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size) +static int atm_uevent(struct class_device *cdev, struct kobj_uevent_env *env) { struct atm_dev *adev; - int i = 0, len = 0; if (!cdev) return -ENODEV; @@ -117,11 +116,9 @@ static int atm_uevent(struct class_device *cdev, char **envp, int num_envp, char if (!adev) return -ENODEV; - if (add_uevent_var(envp, num_envp, &i, buf, size, &len, - "NAME=%s%d", adev->type, adev->number)) + if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number)) return -ENOMEM; - envp[i] = NULL; return 0; } diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 909a03d6c0e9..6628e457ddc0 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -396,28 +396,22 @@ static struct attribute_group wireless_group = { #endif /* CONFIG_SYSFS */ #ifdef CONFIG_HOTPLUG -static int netdev_uevent(struct device *d, char **envp, - int num_envp, char *buf, int size) +static int netdev_uevent(struct device *d, struct kobj_uevent_env *env) { struct net_device *dev = to_net_dev(d); - int retval, len = 0, i = 0; + int retval; /* pass interface to uevent. */ - retval = add_uevent_var(envp, num_envp, &i, - buf, size, &len, - "INTERFACE=%s", dev->name); + retval = add_uevent_var(env, "INTERFACE=%s", dev->name); if (retval) goto exit; /* pass ifindex to uevent. * ifindex is useful as it won't change (interface name may change) * and is what RtNetlink uses natively. */ - retval = add_uevent_var(envp, num_envp, &i, - buf, size, &len, - "IFINDEX=%d", dev->ifindex); + retval = add_uevent_var(env, "IFINDEX=%d", dev->ifindex); exit: - envp[i] = NULL; return retval; } #endif diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c index 2d5d2255a27c..29f820e18251 100644 --- a/net/wireless/sysfs.c +++ b/net/wireless/sysfs.c @@ -53,8 +53,7 @@ static void wiphy_dev_release(struct device *dev) } #ifdef CONFIG_HOTPLUG -static int wiphy_uevent(struct device *dev, char **envp, - int num_envp, char *buf, int size) +static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) { /* TODO, we probably need stuff here */ return 0; diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c index 64d163914335..f84f3e505788 100644 --- a/sound/aoa/soundbus/core.c +++ b/sound/aoa/soundbus/core.c @@ -56,13 +56,12 @@ static int soundbus_probe(struct device *dev) } -static int soundbus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int soundbus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct soundbus_dev * soundbus_dev; struct of_device * of; const char *compat; - int retval = 0, i = 0, length = 0; + int retval = 0; int cplen, seen = 0; if (!dev) @@ -75,15 +74,11 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp, of = &soundbus_dev->ofdev; /* stuff we want to pass to /sbin/hotplug */ - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_NAME=%s", of->node->name); + retval = add_uevent_var(env, "OF_NAME=%s", of->node->name); if (retval) return retval; - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_TYPE=%s", of->node->type); + retval = add_uevent_var(env, "OF_TYPE=%s", of->node->type); if (retval) return retval; @@ -93,27 +88,19 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp, compat = of_get_property(of->node, "compatible", &cplen); while (compat && cplen > 0) { - int tmp = length; - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_COMPATIBLE_%d=%s", seen, compat); + int tmp = env->buflen; + retval = add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat); if (retval) return retval; - compat += length - tmp; - cplen -= length - tmp; + compat += env->buflen - tmp; + cplen -= env->buflen - tmp; seen += 1; } - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "OF_COMPATIBLE_N=%d", seen); + retval = add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen); if (retval) return retval; - retval = add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=%s", soundbus_dev->modalias); - - envp[i] = NULL; + retval = add_uevent_var(env, "MODALIAS=%s", soundbus_dev->modalias); return retval; } -- cgit v1.2.3-58-ga151 From 6a8d8abb6e4497ae4132a9b1f0a956ea501f1c46 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Wed, 15 Aug 2007 15:38:28 +0200 Subject: Driver core: add CONFIG_UEVENT_HELPER_PATH The kernel creates a process for every event that is send, even when there is no binary it could execute. We are needlessly creating around 200-300 failing processes during early bootup, until we have the chance to disable it from userspace. This change allows us to disable /sbin/hotplug entirely, if you want to, by setting UEVENT_HELPER_PATH="" in the kernel config. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/Kconfig | 8 ++++++++ lib/kobject_uevent.c | 2 +- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 5d6312e33490..d7da109c24fd 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -1,5 +1,13 @@ menu "Generic Driver Options" +config UEVENT_HELPER_PATH + string "path to uevent helper" + depends on HOTPLUG + default "/sbin/hotplug" + help + Path to uevent helper program forked by the kernel for + every uevent. + config STANDALONE bool "Select only drivers that don't need compile-time external firmware" if EXPERIMENTAL default y diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 7d8aeb301635..5ccda460262c 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -35,7 +35,7 @@ const char *kobject_actions[] = { #if defined(CONFIG_HOTPLUG) u64 uevent_seqnum; -char uevent_helper[UEVENT_HELPER_PATH_LEN] = "/sbin/hotplug"; +char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH; static DEFINE_SPINLOCK(sequence_lock); #if defined(CONFIG_NET) static struct sock *uevent_sock; -- cgit v1.2.3-58-ga151 From d6b05b84edf590ff872de6310ec20d60b5b37dd2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: Driver core: remove subsys_set_kset This macro is only used by the driver core and is held over from when we had subsystems. It is not needed anymore. Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 3 ++- drivers/base/class.c | 2 +- include/linux/kobject.h | 13 ------------- 3 files changed, 3 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index ff850d1b0d92..625f7e694521 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -823,7 +823,8 @@ int bus_register(struct bus_type * bus) if (retval) goto out; - subsys_set_kset(bus, bus_subsys); + bus->subsys.kobj.kset = &bus_subsys; + retval = subsystem_register(&bus->subsys); if (retval) goto out; diff --git a/drivers/base/class.c b/drivers/base/class.c index ecd6336bffea..cf9cf666f472 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -149,7 +149,7 @@ int class_register(struct class * cls) if (error) return error; - subsys_set_kset(cls, class_subsys); + cls->subsys.kobj.kset = &class_subsys; error = subsystem_register(&cls->subsys); if (!error) { diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 626bdd3c3dd9..0713799fde29 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -241,19 +241,6 @@ extern struct kset hypervisor_subsys; #define kset_set_kset_s(obj,subsys) \ (obj)->kset.kobj.kset = &(subsys) -/** - * subsys_set_kset(obj,subsys) - set kset for subsystem - * @obj: ptr to some object type. - * @_subsys: a subsystem object (not a ptr). - * - * Can be used for any object type with an embedded ->subsys. - * Sets the kset of @obj's kobject to @subsys.kset. This makes - * the object a member of that kset. - */ - -#define subsys_set_kset(obj,_subsys) \ - (obj)->subsys.kobj.kset = &(_subsys) - extern void subsystem_init(struct kset *); extern int __must_check subsystem_register(struct kset *); extern void subsystem_unregister(struct kset *); -- cgit v1.2.3-58-ga151 From 27f20e5e4e60a7f28010eeb34399fe0cc9a1a235 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: Driver core: remove kset_set_kset_s This macro is only used by the driver core and is held over from when we had subsystems. It is not needed anymore. Signed-off-by: Greg Kroah-Hartman --- drivers/base/sys.c | 2 +- include/linux/kobject.h | 14 -------------- 2 files changed, 1 insertion(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 18febe26caa1..7ad893167823 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -139,7 +139,7 @@ int sysdev_class_register(struct sysdev_class * cls) kobject_name(&cls->kset.kobj)); INIT_LIST_HEAD(&cls->drivers); cls->kset.kobj.parent = &system_subsys.kobj; - kset_set_kset_s(cls, system_subsys); + cls->kset.kobj.kset = &system_subsys; return kset_register(&cls->kset); } diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 0713799fde29..ee61ef27e799 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -227,20 +227,6 @@ extern struct kset hypervisor_subsys; #define kobj_set_kset_s(obj,subsys) \ (obj)->kobj.kset = &(subsys) -/** - * kset_set_kset_s(obj,subsys) - set kset for embedded kset. - * @obj: ptr to some object type. - * @subsys: a subsystem object (not a ptr). - * - * Can be used for any object type with an embedded ->kset. - * Sets the kset of @obj's embedded kobject (via its embedded - * kset) to @subsys.kset. This makes @obj a member of that - * kset. - */ - -#define kset_set_kset_s(obj,subsys) \ - (obj)->kset.kobj.kset = &(subsys) - extern void subsystem_init(struct kset *); extern int __must_check subsystem_register(struct kset *); extern void subsystem_unregister(struct kset *); -- cgit v1.2.3-58-ga151 From 6e9d930d167f8957a12a80515f3c417a98296378 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: Driver core: remove subsys_put() There are no more subsystems, it's a kset now so remove the function and the only two users, which are in the driver core. Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 2 +- drivers/base/class.c | 2 +- include/linux/kobject.h | 5 ----- lib/kobject.c | 2 +- 4 files changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 625f7e694521..2f775936544b 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -734,7 +734,7 @@ struct bus_type *get_bus(struct bus_type *bus) void put_bus(struct bus_type * bus) { - subsys_put(&bus->subsys); + kset_put(&bus->subsys); } diff --git a/drivers/base/class.c b/drivers/base/class.c index cf9cf666f472..50e34132576c 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -100,7 +100,7 @@ static struct class *class_get(struct class *cls) static void class_put(struct class * cls) { if (cls) - subsys_put(&cls->subsys); + kset_put(&cls->subsys); } diff --git a/include/linux/kobject.h b/include/linux/kobject.h index ee61ef27e799..45effedff315 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -238,11 +238,6 @@ static inline struct kset *subsys_get(struct kset *s) return NULL; } -static inline void subsys_put(struct kset *s) -{ - kset_put(s); -} - struct subsys_attribute { struct attribute attr; ssize_t (*show)(struct kset *, char *); diff --git a/lib/kobject.c b/lib/kobject.c index 4b08e0ff95c8..0aa4e906916a 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -681,7 +681,7 @@ int subsys_create_file(struct kset *s, struct subsys_attribute *a) if (subsys_get(s)) { error = sysfs_create_file(&s->kobj, &a->attr); - subsys_put(s); + kset_put(s); } return error; } -- cgit v1.2.3-58-ga151 From 1ef4cfac01fb5e98900f5bdb2a722aac1daff11b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: Driver core: remove subsys_get() There are no more subsystems, it's a kset now so remove the function and the only two users, which are in the driver core. Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 2 +- drivers/base/class.c | 2 +- include/linux/kobject.h | 7 ------- lib/kobject.c | 2 +- 4 files changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 2f775936544b..bc38085dbb10 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -728,7 +728,7 @@ EXPORT_SYMBOL_GPL(device_reprobe); struct bus_type *get_bus(struct bus_type *bus) { - return bus ? container_of(subsys_get(&bus->subsys), + return bus ? container_of(kset_get(&bus->subsys), struct bus_type, subsys) : NULL; } diff --git a/drivers/base/class.c b/drivers/base/class.c index 50e34132576c..3e9b04c30fb9 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -93,7 +93,7 @@ void class_remove_file(struct class * cls, const struct class_attribute * attr) static struct class *class_get(struct class *cls) { if (cls) - return container_of(subsys_get(&cls->subsys), struct class, subsys); + return container_of(kset_get(&cls->subsys), struct class, subsys); return NULL; } diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 45effedff315..c0fb535d7acd 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -231,13 +231,6 @@ extern void subsystem_init(struct kset *); extern int __must_check subsystem_register(struct kset *); extern void subsystem_unregister(struct kset *); -static inline struct kset *subsys_get(struct kset *s) -{ - if (s) - return kset_get(s); - return NULL; -} - struct subsys_attribute { struct attribute attr; ssize_t (*show)(struct kset *, char *); diff --git a/lib/kobject.c b/lib/kobject.c index 0aa4e906916a..1326041213dd 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -679,7 +679,7 @@ int subsys_create_file(struct kset *s, struct subsys_attribute *a) if (!s || !a) return -EINVAL; - if (subsys_get(s)) { + if (kset_get(s)) { error = sysfs_create_file(&s->kobj, &a->attr); kset_put(s); } -- cgit v1.2.3-58-ga151 From fc1ede5888ab8a9b3e7f8567b945beed35222885 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 13 Sep 2007 02:53:13 -0700 Subject: Driver core: remove put_bus() put_bus() should not be globally visable as it is not used by anything other than drivers/base/bus.c. This patch removes the visability of it, and renames it to match all of the other *_put() functions in the kernel. Signed-off-by: Greg Kroah-Hartman --- drivers/base/base.h | 1 - drivers/base/bus.c | 29 ++++++++++++++--------------- 2 files changed, 14 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/base/base.h b/drivers/base/base.h index 47eb02d9f1af..cebc7e754574 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -19,7 +19,6 @@ extern int bus_add_device(struct device * dev); extern void bus_attach_device(struct device * dev); extern void bus_remove_device(struct device * dev); extern struct bus_type *get_bus(struct bus_type * bus); -extern void put_bus(struct bus_type * bus); extern int bus_add_driver(struct device_driver *); extern void bus_remove_driver(struct device_driver *); diff --git a/drivers/base/bus.c b/drivers/base/bus.c index bc38085dbb10..4f53b758ac2b 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -30,6 +30,11 @@ static int __must_check bus_rescan_devices_helper(struct device *dev, void *data); +static void bus_put(struct bus_type *bus) +{ + kset_put(&bus->subsys); +} + static ssize_t drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf) { @@ -124,7 +129,7 @@ int bus_create_file(struct bus_type * bus, struct bus_attribute * attr) int error; if (get_bus(bus)) { error = sysfs_create_file(&bus->subsys.kobj, &attr->attr); - put_bus(bus); + bus_put(bus); } else error = -EINVAL; return error; @@ -134,7 +139,7 @@ void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr) { if (get_bus(bus)) { sysfs_remove_file(&bus->subsys.kobj, &attr->attr); - put_bus(bus); + bus_put(bus); } } @@ -186,7 +191,7 @@ static ssize_t driver_unbind(struct device_driver *drv, err = count; } put_device(dev); - put_bus(bus); + bus_put(bus); return err; } static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind); @@ -219,7 +224,7 @@ static ssize_t driver_bind(struct device_driver *drv, err = -ENODEV; } put_device(dev); - put_bus(bus); + bus_put(bus); return err; } static DRIVER_ATTR(bind, S_IWUSR, NULL, driver_bind); @@ -459,7 +464,7 @@ out_subsys: out_id: device_remove_attrs(bus, dev); out_put: - put_bus(dev->bus); + bus_put(dev->bus); return error; } @@ -509,7 +514,7 @@ void bus_remove_device(struct device * dev) } pr_debug("bus %s: remove device %s\n", dev->bus->name, dev->bus_id); device_release_driver(dev); - put_bus(dev->bus); + bus_put(dev->bus); } } @@ -646,7 +651,7 @@ int bus_add_driver(struct device_driver *drv) out_unregister: kobject_unregister(&drv->kobj); out_put_bus: - put_bus(bus); + bus_put(bus); return error; } @@ -671,7 +676,7 @@ void bus_remove_driver(struct device_driver * drv) driver_detach(drv); module_remove_driver(drv); kobject_unregister(&drv->kobj); - put_bus(drv->bus); + bus_put(drv->bus); } @@ -732,12 +737,6 @@ struct bus_type *get_bus(struct bus_type *bus) struct bus_type, subsys) : NULL; } -void put_bus(struct bus_type * bus) -{ - kset_put(&bus->subsys); -} - - /** * find_bus - locate bus by name. * @name: name of bus. @@ -874,7 +873,7 @@ out: * @bus: bus. * * Unregister the child subsystems and the bus itself. - * Finally, we call put_bus() to release the refcount + * Finally, we call bus_put() to release the refcount */ void bus_unregister(struct bus_type * bus) { -- cgit v1.2.3-58-ga151 From 5901d0145c6b9e791bacd049eea11c9db9a3006e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 13 Sep 2007 02:53:13 -0700 Subject: Driver core: remove get_bus() get_bus() should not be globally visable as it is not used by anything other than drivers/base/bus.c. This patch removes the visability of it, and renames it to match all of the other *_get() functions in the kernel. Signed-off-by: Greg Kroah-Hartman --- drivers/base/base.h | 1 - drivers/base/bus.c | 24 ++++++++++++------------ 2 files changed, 12 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/base/base.h b/drivers/base/base.h index cebc7e754574..10b2fb6c9ce6 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -18,7 +18,6 @@ extern int attribute_container_init(void); extern int bus_add_device(struct device * dev); extern void bus_attach_device(struct device * dev); extern void bus_remove_device(struct device * dev); -extern struct bus_type *get_bus(struct bus_type * bus); extern int bus_add_driver(struct device_driver *); extern void bus_remove_driver(struct device_driver *); diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 4f53b758ac2b..0a8d075f3e6c 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -30,6 +30,12 @@ static int __must_check bus_rescan_devices_helper(struct device *dev, void *data); +static struct bus_type *bus_get(struct bus_type *bus) +{ + return bus ? container_of(kset_get(&bus->subsys), + struct bus_type, subsys) : NULL; +} + static void bus_put(struct bus_type *bus) { kset_put(&bus->subsys); @@ -127,7 +133,7 @@ static struct sysfs_ops bus_sysfs_ops = { int bus_create_file(struct bus_type * bus, struct bus_attribute * attr) { int error; - if (get_bus(bus)) { + if (bus_get(bus)) { error = sysfs_create_file(&bus->subsys.kobj, &attr->attr); bus_put(bus); } else @@ -137,7 +143,7 @@ int bus_create_file(struct bus_type * bus, struct bus_attribute * attr) void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr) { - if (get_bus(bus)) { + if (bus_get(bus)) { sysfs_remove_file(&bus->subsys.kobj, &attr->attr); bus_put(bus); } @@ -177,7 +183,7 @@ static int driver_helper(struct device *dev, void *data) static ssize_t driver_unbind(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = get_bus(drv->bus); + struct bus_type *bus = bus_get(drv->bus); struct device *dev; int err = -ENODEV; @@ -204,7 +210,7 @@ static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind); static ssize_t driver_bind(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = get_bus(drv->bus); + struct bus_type *bus = bus_get(drv->bus); struct device *dev; int err = -ENODEV; @@ -435,7 +441,7 @@ static inline void remove_deprecated_bus_links(struct device *dev) { } */ int bus_add_device(struct device * dev) { - struct bus_type * bus = get_bus(dev->bus); + struct bus_type * bus = bus_get(dev->bus); int error = 0; if (bus) { @@ -611,7 +617,7 @@ static inline void remove_probe_files(struct bus_type *bus) {} */ int bus_add_driver(struct device_driver *drv) { - struct bus_type * bus = get_bus(drv->bus); + struct bus_type * bus = bus_get(drv->bus); int error = 0; if (!bus) @@ -731,12 +737,6 @@ int device_reprobe(struct device *dev) } EXPORT_SYMBOL_GPL(device_reprobe); -struct bus_type *get_bus(struct bus_type *bus) -{ - return bus ? container_of(kset_get(&bus->subsys), - struct bus_type, subsys) : NULL; -} - /** * find_bus - locate bus by name. * @name: name of bus. -- cgit v1.2.3-58-ga151 From 19c38de88a80913351fcacefdb461cc0b585fa87 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: kobjects: fix up improper use of the kobject name field A number of different drivers incorrect access the kobject name field directly. This is not correct as the name might not be in the array. Use the proper accessor function instead. --- block/elevator.c | 2 +- block/ll_rw_blk.c | 2 +- drivers/acpi/bus.c | 2 +- drivers/cpufreq/cpufreq.c | 2 +- drivers/md/md.c | 3 +-- drivers/net/ibmveth.c | 2 +- drivers/pci/setup-irq.c | 2 +- fs/partitions/check.c | 12 +++++++----- fs/sysfs/dir.c | 2 +- net/bridge/br_sysfs_br.c | 2 +- 10 files changed, 16 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/block/elevator.c b/block/elevator.c index c6d153de9fd6..b9c518afe1f8 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -186,7 +186,7 @@ static elevator_t *elevator_alloc(struct request_queue *q, eq->ops = &e->ops; eq->elevator_type = e; kobject_init(&eq->kobj); - snprintf(eq->kobj.name, KOBJ_NAME_LEN, "%s", "iosched"); + kobject_set_name(&eq->kobj, "%s", "iosched"); eq->kobj.ktype = &elv_ktype; mutex_init(&eq->sysfs_lock); diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index cd9d2c5d91ae..d875673e76cd 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1854,7 +1854,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) init_timer(&q->unplug_timer); - snprintf(q->kobj.name, KOBJ_NAME_LEN, "%s", "queue"); + kobject_set_name(&q->kobj, "%s", "queue"); q->kobj.ktype = &queue_ktype; kobject_init(&q->kobj); diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index feab124d8e05..cbfc81579c9a 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -194,7 +194,7 @@ int acpi_bus_set_power(acpi_handle handle, int state) if (!device->flags.power_manageable) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n", - device->dev.kobj.name)); + kobject_name(&device->dev.kobj))); return -ENODEV; } /* diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 2f6a73c01b71..2ce3de5e84af 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -828,7 +828,7 @@ static int cpufreq_add_dev (struct sys_device * sys_dev) /* prepare interface data */ policy->kobj.parent = &sys_dev->kobj; policy->kobj.ktype = &ktype_cpufreq; - strlcpy(policy->kobj.name, "cpufreq", KOBJ_NAME_LEN); + kobject_set_name(&policy->kobj, "cpufreq"); ret = kobject_register(&policy->kobj); if (ret) { diff --git a/drivers/md/md.c b/drivers/md/md.c index e8f102ea9b03..acf1b81b47cb 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3076,8 +3076,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data) mddev->gendisk = disk; mutex_unlock(&disks_mutex); mddev->kobj.parent = &disk->kobj; - mddev->kobj.k_name = NULL; - snprintf(mddev->kobj.name, KOBJ_NAME_LEN, "%s", "md"); + kobject_set_name(&mddev->kobj, "%s", "md"); mddev->kobj.ktype = &md_ktype; if (kobject_register(&mddev->kobj)) printk(KERN_WARNING "md: cannot register %s/md - name in use\n", diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 4ac161e1ca12..7d7758f3ad8c 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -1183,7 +1183,7 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_ pool_count[i], pool_size[i], pool_active[i]); kobj->parent = &dev->dev.kobj; - sprintf(kobj->name, "pool%d", i); + kobject_set_name(kobj, "pool%d", i); kobj->ktype = &ktype_veth_pool; kobject_register(kobj); } diff --git a/drivers/pci/setup-irq.c b/drivers/pci/setup-irq.c index 568f1877315c..05ca2ed9eb51 100644 --- a/drivers/pci/setup-irq.c +++ b/drivers/pci/setup-irq.c @@ -48,7 +48,7 @@ pdev_fixup_irq(struct pci_dev *dev, dev->irq = irq; pr_debug("PCI: fixup irq: (%s) got %d\n", - dev->dev.kobj.name, dev->irq); + kobject_name(&dev->dev.kobj), dev->irq); /* Always tell the device, so the driver knows what is the real IRQ to use; the device does not use it. */ diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 783c57ec07d3..722e12e5acc7 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -381,10 +381,12 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len, p->partno = part; p->policy = disk->policy; - if (isdigit(disk->kobj.name[strlen(disk->kobj.name)-1])) - snprintf(p->kobj.name,KOBJ_NAME_LEN,"%sp%d",disk->kobj.name,part); + if (isdigit(disk->kobj.k_name[strlen(disk->kobj.k_name)-1])) + kobject_set_name(&p->kobj, "%sp%d", + kobject_name(&disk->kobj), part); else - snprintf(p->kobj.name,KOBJ_NAME_LEN,"%s%d",disk->kobj.name,part); + kobject_set_name(&p->kobj, "%s%d", + kobject_name(&disk->kobj),part); p->kobj.parent = &disk->kobj; p->kobj.ktype = &ktype_part; kobject_init(&p->kobj); @@ -477,9 +479,9 @@ void register_disk(struct gendisk *disk) struct hd_struct *p; int err; - strlcpy(disk->kobj.name,disk->disk_name,KOBJ_NAME_LEN); + kobject_set_name(&disk->kobj, "%s", disk->disk_name); /* ewww... some of these buggers have / in name... */ - s = strchr(disk->kobj.name, '/'); + s = strchr(disk->kobj.k_name, '/'); if (s) *s = '!'; if ((err = kobject_add(&disk->kobj))) diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 83e76b3813c9..ea33b660ae8a 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -1013,7 +1013,7 @@ again: goto again; } - new_dentry = lookup_one_len(kobj->name, new_parent, strlen(kobj->name)); + new_dentry = lookup_one_len(kobject_name(kobj), new_parent, strlen(kobject_name(kobj))); if (IS_ERR(new_dentry)) { error = PTR_ERR(new_dentry); goto out_unlock; diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index c65f54e0e27f..3312e8f2abe4 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -435,7 +435,7 @@ int br_sysfs_addbr(struct net_device *dev) err = kobject_register(&br->ifobj); if (err) { pr_info("%s: can't add kobject (directory) %s/%s\n", - __FUNCTION__, dev->name, br->ifobj.name); + __FUNCTION__, dev->name, kobject_name(&br->ifobj)); goto out3; } return 0; -- cgit v1.2.3-58-ga151 From 7e7654a92a5a75a350cc3458389bc76273498f6a Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: cdev: remove unneeded setting of cdev names struct cdev does not need the kobject name to be set, as it is never used. This patch fixes up the few places it is set. Signed-off-by: Greg Kroah-Hartman Acked-by: Mauro Carvalho Chehab --- block/bsg.c | 5 +---- drivers/char/raw.c | 5 +---- drivers/media/dvb/dvb-core/dvbdev.c | 5 +---- drivers/usb/core/devio.c | 6 ++---- 4 files changed, 5 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/block/bsg.c b/block/bsg.c index ed2646827234..b8ddfc66f210 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -1010,10 +1010,7 @@ unlock: } EXPORT_SYMBOL_GPL(bsg_register_queue); -static struct cdev bsg_cdev = { - .kobj = {.name = "bsg", }, - .owner = THIS_MODULE, -}; +static struct cdev bsg_cdev; static int __init bsg_init(void) { diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 1f0d7c60c944..bbfa0e241cba 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -255,10 +255,7 @@ static const struct file_operations raw_ctl_fops = { .owner = THIS_MODULE, }; -static struct cdev raw_cdev = { - .kobj = {.name = "raw", }, - .owner = THIS_MODULE, -}; +static struct cdev raw_cdev; static int __init raw_init(void) { diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 56231d8edc07..18738faecbbc 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -103,10 +103,7 @@ static struct file_operations dvb_device_fops = .open = dvb_device_open, }; -static struct cdev dvb_device_cdev = { - .kobj = {.name = "dvb", }, - .owner = THIS_MODULE, -}; +static struct cdev dvb_device_cdev; int dvb_generic_open(struct inode *inode, struct file *file) { diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 927a181120a9..fe98796d2ff1 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1576,6 +1576,7 @@ static unsigned int usbdev_poll(struct file *file, struct poll_table_struct *wai } const struct file_operations usbdev_file_operations = { + .owner = THIS_MODULE, .llseek = usbdev_lseek, .read = usbdev_read, .poll = usbdev_poll, @@ -1625,10 +1626,7 @@ static struct notifier_block usbdev_nb = { }; #endif -static struct cdev usb_device_cdev = { - .kobj = {.name = "usb_device", }, - .owner = THIS_MODULE, -}; +static struct cdev usb_device_cdev; int __init usb_devio_init(void) { -- cgit v1.2.3-58-ga151 From 34980ca8faebfcce31094eba6ffbb0113950361f Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Sep 2007 15:06:57 -0700 Subject: Drivers: clean up direct setting of the name of a kset A kset should not have its name set directly, so dynamically set the name at runtime. This is needed to remove the static array in the kobject structure which will be changed in a future patch. Signed-off-by: Greg Kroah-Hartman --- drivers/edac/edac_mc_sysfs.c | 3 ++- drivers/pci/hotplug/rpadlpar_sysfs.c | 6 +++--- fs/dlm/lockspace.c | 2 +- fs/gfs2/locking/dlm/sysfs.c | 2 +- fs/gfs2/sys.c | 2 +- fs/ocfs2/cluster/masklog.c | 3 ++- 6 files changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 4a0576bd06fc..3706b2bc0987 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -743,7 +743,7 @@ static struct kobj_type ktype_mc_set_attribs = { * /sys/devices/system/edac/mc */ static struct kset mc_kset = { - .kobj = {.name = "mc", .ktype = &ktype_mc_set_attribs }, + .kobj = {.ktype = &ktype_mc_set_attribs }, .ktype = &ktype_mci, }; @@ -1010,6 +1010,7 @@ int edac_sysfs_setup_mc_kset(void) } /* Init the MC's kobject */ + kobject_set_name(&mc_kset.kobj, "mc"); mc_kset.kobj.parent = &edac_class->kset.kobj; /* register the mc_kset */ diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c index df076064a3e0..a080fedf0332 100644 --- a/drivers/pci/hotplug/rpadlpar_sysfs.c +++ b/drivers/pci/hotplug/rpadlpar_sysfs.c @@ -129,17 +129,17 @@ struct kobj_type ktype_dlpar_io = { }; struct kset dlpar_io_kset = { - .kobj = {.name = DLPAR_KOBJ_NAME, - .ktype = &ktype_dlpar_io, + .kobj = {.ktype = &ktype_dlpar_io, .parent = &pci_hotplug_slots_subsys.kobj}, .ktype = &ktype_dlpar_io, }; int dlpar_sysfs_init(void) { + kobject_set_name(&dlpar_io_kset.kobj, DLPAR_KOBJ_NAME); if (kset_register(&dlpar_io_kset)) { printk(KERN_ERR "rpadlpar_io: cannot register kset for %s\n", - dlpar_io_kset.kobj.name); + kobject_name(&dlpar_io_kset.kobj)); return -EINVAL; } diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c index 1dc72105ab12..f88f88fdedf1 100644 --- a/fs/dlm/lockspace.c +++ b/fs/dlm/lockspace.c @@ -167,7 +167,6 @@ static struct kobj_type dlm_ktype = { }; static struct kset dlm_kset = { - .kobj = {.name = "dlm",}, .ktype = &dlm_ktype, }; @@ -228,6 +227,7 @@ int dlm_lockspace_init(void) INIT_LIST_HEAD(&lslist); spin_lock_init(&lslist_lock); + kobject_set_name(&dlm_kset.kobj, "dlm"); kobj_set_kset_s(&dlm_kset, kernel_subsys); error = kset_register(&dlm_kset); if (error) diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c index d9fe3ca40e18..ae9e6a25fe2b 100644 --- a/fs/gfs2/locking/dlm/sysfs.c +++ b/fs/gfs2/locking/dlm/sysfs.c @@ -190,7 +190,6 @@ static struct kobj_type gdlm_ktype = { }; static struct kset gdlm_kset = { - .kobj = {.name = "lock_dlm",}, .ktype = &gdlm_ktype, }; @@ -224,6 +223,7 @@ int gdlm_sysfs_init(void) { int error; + kobject_set_name(&gdlm_kset.kobj, "lock_dlm"); kobj_set_kset_s(&gdlm_kset, kernel_subsys); error = kset_register(&gdlm_kset); if (error) diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index c26c21b53c19..640cb6a6fc4c 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -222,7 +222,6 @@ static struct kobj_type gfs2_ktype = { }; static struct kset gfs2_kset = { - .kobj = {.name = "gfs2"}, .ktype = &gfs2_ktype, }; @@ -553,6 +552,7 @@ int gfs2_sys_init(void) { gfs2_sys_margs = NULL; spin_lock_init(&gfs2_sys_margs_lock); + kobject_set_name(&gfs2_kset.kobj, "gfs2"); kobj_set_kset_s(&gfs2_kset, fs_subsys); return kset_register(&gfs2_kset); } diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c index e9e042b93dbf..a4882c8df945 100644 --- a/fs/ocfs2/cluster/masklog.c +++ b/fs/ocfs2/cluster/masklog.c @@ -143,7 +143,7 @@ static struct kobj_type mlog_ktype = { }; static struct kset mlog_kset = { - .kobj = {.name = "logmask", .ktype = &mlog_ktype}, + .kobj = {.ktype = &mlog_ktype}, }; int mlog_sys_init(struct kset *o2cb_subsys) @@ -156,6 +156,7 @@ int mlog_sys_init(struct kset *o2cb_subsys) } mlog_attr_ptrs[i] = NULL; + kobject_set_name(&mlog_kset.kobj, "logmask"); kobj_set_kset_s(&mlog_kset, *o2cb_subsys); return kset_register(&mlog_kset); } -- cgit v1.2.3-58-ga151 From 6374475661172d508a9b93a2740a3fdc9d899756 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 13 Aug 2007 11:24:33 +0200 Subject: dmi-id: Use dynamic sysfs attributes We can use sysfs attributes with an extra parameter for dmi id attributes. This makes it possible to use the same callback function for all attributes, reducing the binary size significantly (-18% on x86_64.) Signed-off-by: Jean Delvare Acked-by: Lennart Poettering Signed-off-by: Greg Kroah-Hartman --- drivers/firmware/dmi-id.c | 38 ++++++++++++++++++++++++++------------ 1 file changed, 26 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c index 2678098d4504..a7bd87d52897 100644 --- a/drivers/firmware/dmi-id.c +++ b/drivers/firmware/dmi-id.c @@ -13,21 +13,35 @@ #include #include +struct dmi_device_attribute{ + struct device_attribute dev_attr; + int field; +}; +#define to_dmi_dev_attr(_dev_attr) \ + container_of(_dev_attr, struct dmi_device_attribute, dev_attr) + #define DEFINE_DMI_ATTR(_name, _mode, _show) \ static struct device_attribute sys_dmi_##_name##_attr = \ __ATTR(_name, _mode, _show, NULL); -#define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field) \ -static ssize_t sys_dmi_##_name##_show(struct device *dev, \ - struct device_attribute *attr, \ - char *page) \ -{ \ - ssize_t len; \ - len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(_field)); \ - page[len-1] = '\n'; \ - return len; \ -} \ -DEFINE_DMI_ATTR(_name, _mode, sys_dmi_##_name##_show); +static ssize_t sys_dmi_field_show(struct device *dev, + struct device_attribute *attr, + char *page) +{ + int field = to_dmi_dev_attr(attr)->field; + ssize_t len; + len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(field)); + page[len-1] = '\n'; + return len; +} + +#define DMI_ATTR(_name, _mode, _show, _field) \ + { .dev_attr = __ATTR(_name, _mode, _show, NULL), \ + .field = _field } + +#define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field) \ +static struct dmi_device_attribute sys_dmi_##_name##_attr = \ + DMI_ATTR(_name, _mode, sys_dmi_field_show, _field); DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor, 0444, DMI_BIOS_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(bios_version, 0444, DMI_BIOS_VERSION); @@ -160,7 +174,7 @@ static struct device *dmi_dev; #define ADD_DMI_ATTR(_name, _field) \ if (dmi_get_system_info(_field)) \ - sys_dmi_attributes[i++] = & sys_dmi_##_name##_attr.attr; + sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr; extern int dmi_available; -- cgit v1.2.3-58-ga151 From 34b51f39e23bc9e529830ddf6108381d4bab95a6 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 13 Aug 2007 11:26:26 +0200 Subject: dmi-id: Possible cleanup The DEFINE_DMI_ATTR macro has a single user left so we can expand it for slightly shorter/simpler code. Signed-off-by: Jean Delvare Acked-by: Lennart Poettering Signed-off-by: Greg Kroah-Hartman --- drivers/firmware/dmi-id.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c index a7bd87d52897..b6e1eb77d148 100644 --- a/drivers/firmware/dmi-id.c +++ b/drivers/firmware/dmi-id.c @@ -20,10 +20,6 @@ struct dmi_device_attribute{ #define to_dmi_dev_attr(_dev_attr) \ container_of(_dev_attr, struct dmi_device_attribute, dev_attr) -#define DEFINE_DMI_ATTR(_name, _mode, _show) \ -static struct device_attribute sys_dmi_##_name##_attr = \ - __ATTR(_name, _mode, _show, NULL); - static ssize_t sys_dmi_field_show(struct device *dev, struct device_attribute *attr, char *page) @@ -135,7 +131,8 @@ static ssize_t sys_dmi_modalias_show(struct device *dev, return r+1; } -DEFINE_DMI_ATTR(modalias, 0444, sys_dmi_modalias_show); +static struct device_attribute sys_dmi_modalias_attr = + __ATTR(modalias, 0444, sys_dmi_modalias_show, NULL); static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2]; -- cgit v1.2.3-58-ga151 From 60043428a561a5d431ad479b7ecb79805ed04efc Mon Sep 17 00:00:00 2001 From: "tonyj@suse.de" Date: Tue, 7 Aug 2007 22:28:47 -0700 Subject: Convert from class_device to device for drivers/video Convert from class_device to device for drivers/video. Signed-off-by: Tony Jones Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/video.c | 4 ++-- drivers/video/output.c | 29 ++++++++++++++++------------- include/linux/video_output.h | 4 ++-- 3 files changed, 20 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index d05891f16282..b8a2095cb5ee 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -316,7 +316,7 @@ static int acpi_video_output_get(struct output_device *od) { unsigned long state; struct acpi_video_device *vd = - (struct acpi_video_device *)class_get_devdata(&od->class_dev); + (struct acpi_video_device *)dev_get_drvdata(&od->dev); acpi_video_device_get_state(vd, &state); return (int)state; } @@ -325,7 +325,7 @@ static int acpi_video_output_set(struct output_device *od) { unsigned long state = od->request_state; struct acpi_video_device *vd= - (struct acpi_video_device *)class_get_devdata(&od->class_dev); + (struct acpi_video_device *)dev_get_drvdata(&od->dev); return acpi_video_device_set_state(vd, state); } diff --git a/drivers/video/output.c b/drivers/video/output.c index 1473f2c892d2..f2df5519c9c4 100644 --- a/drivers/video/output.c +++ b/drivers/video/output.c @@ -31,7 +31,8 @@ MODULE_DESCRIPTION("Display Output Switcher Lowlevel Control Abstraction"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Luming Yu "); -static ssize_t video_output_show_state(struct class_device *dev,char *buf) +static ssize_t video_output_show_state(struct device *dev, + struct device_attribute *attr, char *buf) { ssize_t ret_size = 0; struct output_device *od = to_output_device(dev); @@ -40,8 +41,9 @@ static ssize_t video_output_show_state(struct class_device *dev,char *buf) return ret_size; } -static ssize_t video_output_store_state(struct class_device *dev, - const char *buf,size_t count) +static ssize_t video_output_store_state(struct device *dev, + struct device_attribute *attr, + const char *buf,size_t count) { char *endp; struct output_device *od = to_output_device(dev); @@ -60,21 +62,22 @@ static ssize_t video_output_store_state(struct class_device *dev, return count; } -static void video_output_class_release(struct class_device *dev) +static void video_output_release(struct device *dev) { struct output_device *od = to_output_device(dev); kfree(od); } -static struct class_device_attribute video_output_attributes[] = { +static struct device_attribute video_output_attributes[] = { __ATTR(state, 0644, video_output_show_state, video_output_store_state), __ATTR_NULL, }; + static struct class video_output_class = { .name = "video_output", - .release = video_output_class_release, - .class_dev_attrs = video_output_attributes, + .dev_release = video_output_release, + .dev_attrs = video_output_attributes, }; struct output_device *video_output_register(const char *name, @@ -91,11 +94,11 @@ struct output_device *video_output_register(const char *name, goto error_return; } new_dev->props = op; - new_dev->class_dev.class = &video_output_class; - new_dev->class_dev.dev = dev; - strlcpy(new_dev->class_dev.class_id,name,KOBJ_NAME_LEN); - class_set_devdata(&new_dev->class_dev,devdata); - ret_code = class_device_register(&new_dev->class_dev); + new_dev->dev.class = &video_output_class; + new_dev->dev.parent = dev; + strlcpy(new_dev->dev.bus_id,name, BUS_ID_SIZE); + dev_set_drvdata(&new_dev->dev, devdata); + ret_code = device_register(&new_dev->dev); if (ret_code) { kfree(new_dev); goto error_return; @@ -111,7 +114,7 @@ void video_output_unregister(struct output_device *dev) { if (!dev) return; - class_device_unregister(&dev->class_dev); + device_unregister(&dev->dev); } EXPORT_SYMBOL(video_output_unregister); diff --git a/include/linux/video_output.h b/include/linux/video_output.h index e63e0c03ee0d..2fb46bc9340d 100644 --- a/include/linux/video_output.h +++ b/include/linux/video_output.h @@ -31,9 +31,9 @@ struct output_properties { struct output_device { int request_state; struct output_properties *props; - struct class_device class_dev; + struct device dev; }; -#define to_output_device(obj) container_of(obj, struct output_device, class_dev) +#define to_output_device(obj) container_of(obj, struct output_device, dev) struct output_device *video_output_register(const char *name, struct device *dev, void *devdata, -- cgit v1.2.3-58-ga151 From 07c015e7654821f2dda00dcf152c65b2afd46ac3 Mon Sep 17 00:00:00 2001 From: "tonyj@suse.de" Date: Tue, 7 Aug 2007 22:28:44 -0700 Subject: Convert from class_device to device in drivers/char Convert from class_device to device in drivers/char. Signed-off-by: Tony Jones Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/char/dsp56k.c | 4 ++-- drivers/char/ip2/ip2main.c | 12 ++++++------ drivers/char/ipmi/ipmi_devintf.c | 6 +++--- drivers/char/istallion.c | 8 +++----- drivers/char/lp.c | 5 ++--- drivers/char/pcmcia/cm4000_cs.c | 5 ++--- drivers/char/pcmcia/cm4040_cs.c | 5 ++--- drivers/char/snsc.c | 3 +-- drivers/char/stallion.c | 7 +++---- drivers/char/tipar.c | 6 +++--- drivers/char/viotape.c | 10 +++++----- 11 files changed, 32 insertions(+), 39 deletions(-) (limited to 'drivers') diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index 9b8278e1f4f8..acbfe1c49b4d 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -513,7 +513,7 @@ static int __init dsp56k_init_driver(void) err = PTR_ERR(dsp56k_class); goto out_chrdev; } - class_device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), NULL, "dsp56k"); + device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), "dsp56k"); printk(banner); goto out; @@ -527,7 +527,7 @@ module_init(dsp56k_init_driver); static void __exit dsp56k_cleanup_driver(void) { - class_device_destroy(dsp56k_class, MKDEV(DSP56K_MAJOR, 0)); + device_destroy(dsp56k_class, MKDEV(DSP56K_MAJOR, 0)); class_destroy(dsp56k_class); unregister_chrdev(DSP56K_MAJOR, "dsp56k"); } diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 8d74b8745e60..bd94d5f9e62b 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -411,8 +411,8 @@ cleanup_module(void) iiResetDelay( i2BoardPtrTable[i] ); /* free io addresses and Tibet */ release_region( ip2config.addr[i], 8 ); - class_device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i)); - class_device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i + 1)); + device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i)); + device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i + 1)); } /* Disable and remove interrupt handler. */ if ( (ip2config.irq[i] > 0) && have_requested_irq(ip2config.irq[i]) ) { @@ -718,12 +718,12 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) } if ( NULL != ( pB = i2BoardPtrTable[i] ) ) { - class_device_create(ip2_class, NULL, + device_create(ip2_class, NULL, MKDEV(IP2_IPL_MAJOR, 4 * i), - NULL, "ipl%d", i); - class_device_create(ip2_class, NULL, + "ipl%d", i); + device_create(ip2_class, NULL, MKDEV(IP2_IPL_MAJOR, 4 * i + 1), - NULL, "stat%d", i); + "stat%d", i); for ( box = 0; box < ABS_MAX_BOXES; ++box ) { diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c index c2aa44ee6eb6..0246a2b8ce48 100644 --- a/drivers/char/ipmi/ipmi_devintf.c +++ b/drivers/char/ipmi/ipmi_devintf.c @@ -865,7 +865,7 @@ static void ipmi_new_smi(int if_num, struct device *device) entry->dev = dev; mutex_lock(®_list_mutex); - class_device_create(ipmi_class, NULL, dev, device, "ipmi%d", if_num); + device_create(ipmi_class, device, dev, "ipmi%d", if_num); list_add(&entry->link, ®_list); mutex_unlock(®_list_mutex); } @@ -883,7 +883,7 @@ static void ipmi_smi_gone(int if_num) break; } } - class_device_destroy(ipmi_class, dev); + device_destroy(ipmi_class, dev); mutex_unlock(®_list_mutex); } @@ -938,7 +938,7 @@ static __exit void cleanup_ipmi(void) mutex_lock(®_list_mutex); list_for_each_entry_safe(entry, entry2, ®_list, link) { list_del(&entry->link); - class_device_destroy(ipmi_class, entry->dev); + device_destroy(ipmi_class, entry->dev); kfree(entry); } mutex_unlock(®_list_mutex); diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 3c66f402f9d7..1f27be1ec3d4 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -4624,9 +4624,8 @@ static int __init istallion_module_init(void) istallion_class = class_create(THIS_MODULE, "staliomem"); for (i = 0; i < 4; i++) - class_device_create(istallion_class, NULL, - MKDEV(STL_SIOMEMMAJOR, i), - NULL, "staliomem%d", i); + device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), + "staliomem%d", i); return 0; err_deinit: @@ -4659,8 +4658,7 @@ static void __exit istallion_module_exit(void) unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"); for (j = 0; j < 4; j++) - class_device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, - j)); + device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, j)); class_destroy(istallion_class); pci_unregister_driver(&stli_pcidriver); diff --git a/drivers/char/lp.c b/drivers/char/lp.c index 62051f8b0910..c59e2a0996cc 100644 --- a/drivers/char/lp.c +++ b/drivers/char/lp.c @@ -799,8 +799,7 @@ static int lp_register(int nr, struct parport *port) if (reset) lp_reset(nr); - class_device_create(lp_class, NULL, MKDEV(LP_MAJOR, nr), port->dev, - "lp%d", nr); + device_create(lp_class, port->dev, MKDEV(LP_MAJOR, nr), "lp%d", nr); printk(KERN_INFO "lp%d: using %s (%s).\n", nr, port->name, (port->irq == PARPORT_IRQ_NONE)?"polling":"interrupt-driven"); @@ -971,7 +970,7 @@ static void lp_cleanup_module (void) if (lp_table[offset].dev == NULL) continue; parport_unregister_device(lp_table[offset].dev); - class_device_destroy(lp_class, MKDEV(LP_MAJOR, offset)); + device_destroy(lp_class, MKDEV(LP_MAJOR, offset)); } class_destroy(lp_class); } diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 4177f6db83e9..cc5d77797def 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1863,8 +1863,7 @@ static int cm4000_probe(struct pcmcia_device *link) return ret; } - class_device_create(cmm_class, NULL, MKDEV(major, i), NULL, - "cmm%d", i); + device_create(cmm_class, NULL, MKDEV(major, i), "cmm%d", i); return 0; } @@ -1888,7 +1887,7 @@ static void cm4000_detach(struct pcmcia_device *link) dev_table[devno] = NULL; kfree(dev); - class_device_destroy(cmm_class, MKDEV(major, devno)); + device_destroy(cmm_class, MKDEV(major, devno)); return; } diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c index b24a3e7bbb9f..a0b9c8728d56 100644 --- a/drivers/char/pcmcia/cm4040_cs.c +++ b/drivers/char/pcmcia/cm4040_cs.c @@ -642,8 +642,7 @@ static int reader_probe(struct pcmcia_device *link) return ret; } - class_device_create(cmx_class, NULL, MKDEV(major, i), NULL, - "cmx%d", i); + device_create(cmx_class, NULL, MKDEV(major, i), "cmx%d", i); return 0; } @@ -666,7 +665,7 @@ static void reader_detach(struct pcmcia_device *link) dev_table[devno] = NULL; kfree(dev); - class_device_destroy(cmx_class, MKDEV(major, devno)); + device_destroy(cmx_class, MKDEV(major, devno)); return; } diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index 52753e723eaa..b9c1dba6bd01 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -441,8 +441,7 @@ scdrv_init(void) continue; } - class_device_create(snsc_class, NULL, dev, NULL, - "%s", devname); + device_create(snsc_class, NULL, dev, "%s", devname); ia64_sn_irtr_intr_enable(scd->scd_nasid, 0 /*ignored */ , diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 4a80b2f864e0..45758d5b56ef 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -4778,9 +4778,8 @@ static int __init stallion_module_init(void) if (IS_ERR(stallion_class)) printk("STALLION: failed to create class\n"); for (i = 0; i < 4; i++) - class_device_create(stallion_class, NULL, - MKDEV(STL_SIOMEMMAJOR, i), NULL, - "staliomem%d", i); + device_create(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), + "staliomem%d", i); return 0; err_unrtty: @@ -4816,7 +4815,7 @@ static void __exit stallion_module_exit(void) } for (i = 0; i < 4; i++) - class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i)); + device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i)); unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"); class_destroy(stallion_class); diff --git a/drivers/char/tipar.c b/drivers/char/tipar.c index 35b40b996534..cef55c40654f 100644 --- a/drivers/char/tipar.c +++ b/drivers/char/tipar.c @@ -441,8 +441,8 @@ tipar_register(int nr, struct parport *port) goto out; } - class_device_create(tipar_class, NULL, MKDEV(TIPAR_MAJOR, - TIPAR_MINOR + nr), port->dev, "par%d", nr); + device_create(tipar_class, port->dev, MKDEV(TIPAR_MAJOR, + TIPAR_MINOR + nr), "par%d", nr); /* Display informations */ pr_info("tipar%d: using %s (%s)\n", nr, port->name, (port->irq == @@ -534,7 +534,7 @@ tipar_cleanup_module(void) if (table[i].dev == NULL) continue; parport_unregister_device(table[i].dev); - class_device_destroy(tipar_class, MKDEV(TIPAR_MAJOR, i)); + device_destroy(tipar_class, MKDEV(TIPAR_MAJOR, i)); } class_destroy(tipar_class); diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index f1d60f0cef8f..db7a731e2362 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -871,10 +871,10 @@ static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id) state[i].cur_part = 0; for (j = 0; j < MAX_PARTITIONS; ++j) state[i].part_stat_rwi[j] = VIOT_IDLE; - class_device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), NULL, + device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), "iseries!vt%d", i); - class_device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), - NULL, "iseries!nvt%d", i); + device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), + "iseries!nvt%d", i); printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries " "resource %10.10s type %4.4s, model %3.3s\n", i, viotape_unitinfo[i].rsrcname, @@ -886,8 +886,8 @@ static int viotape_remove(struct vio_dev *vdev) { int i = vdev->unit_address; - class_device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i | 0x80)); - class_device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i)); + device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i | 0x80)); + device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i)); return 0; } -- cgit v1.2.3-58-ga151 From 5c5daf657cb5f963a38413f2852279d7a3843144 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sun, 12 Aug 2007 20:43:55 +0200 Subject: Driver core: exclude kobject_uevent.c for !CONFIG_HOTPLUG Move uevent specific logic from the core into kobject_uevent.c, which does no longer require to link the unused string array if hotplug is not compiled in. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 18 ++++------------ include/linux/kobject.h | 10 ++++++--- lib/Makefile | 3 ++- lib/kobject_uevent.c | 57 ++++++++++++++++++++++++++++++++++++++----------- 4 files changed, 57 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/base/core.c b/drivers/base/core.c index d487c032dc4a..65de221e3bfa 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -234,13 +234,11 @@ static ssize_t show_uevent(struct device *dev, struct device_attribute *attr, /* search the kset, the device belongs to */ top_kobj = &dev->kobj; - if (!top_kobj->kset && top_kobj->parent) { - do { - top_kobj = top_kobj->parent; - } while (!top_kobj->kset && top_kobj->parent); - } + while (!top_kobj->kset && top_kobj->parent) + top_kobj = top_kobj->parent; if (!top_kobj->kset) goto out; + kset = top_kobj->kset; if (!kset->uevent_ops || !kset->uevent_ops->uevent) goto out; @@ -270,17 +268,9 @@ out: static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - size_t len = count; enum kobject_action action; - if (len && buf[len-1] == '\n') - len--; - - for (action = 0; action < KOBJ_MAX; action++) { - if (strncmp(kobject_actions[action], buf, len) != 0) - continue; - if (kobject_actions[action][len] != '\0') - continue; + if (kobject_action_type(buf, count, &action) == 0) { kobject_uevent(&dev->kobj, action); goto out; } diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 56f5eaf10ea9..0777b3f57ae6 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -58,9 +58,6 @@ enum kobject_action { KOBJ_MAX }; -/* The list of strings defining the valid kobject actions as specified above */ -extern const char *kobject_actions[]; - struct kobject { const char * k_name; struct kref kref; @@ -241,6 +238,9 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) __attribute__((format (printf, 2, 3))); + +int kobject_action_type(const char *buf, size_t count, + enum kobject_action *type); #else static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action) { return 0; } @@ -251,6 +251,10 @@ static inline int kobject_uevent_env(struct kobject *kobj, static inline int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...) { return 0; } + +static inline int kobject_action_type(const char *buf, size_t count, + enum kobject_action *type) +{ return -EINVAL; } #endif #endif /* __KERNEL__ */ diff --git a/lib/Makefile b/lib/Makefile index 4f3f3e256501..6c4ea33bb2cb 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -10,7 +10,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \ lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o -lib-y += kobject.o kref.o kobject_uevent.o klist.o +lib-y += kobject.o kref.o klist.o obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o @@ -20,6 +20,7 @@ CFLAGS_kobject.o += -DDEBUG CFLAGS_kobject_uevent.o += -DDEBUG endif +lib-$(CONFIG_HOTPLUG) += kobject_uevent.o obj-$(CONFIG_GENERIC_IOMAP) += iomap.o obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 5ccda460262c..a8efb48dca54 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -23,17 +23,6 @@ #include -/* the strings here must match the enum in include/linux/kobject.h */ -const char *kobject_actions[] = { - "add", - "remove", - "change", - "move", - "online", - "offline", -}; - -#if defined(CONFIG_HOTPLUG) u64 uevent_seqnum; char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH; static DEFINE_SPINLOCK(sequence_lock); @@ -41,6 +30,50 @@ static DEFINE_SPINLOCK(sequence_lock); static struct sock *uevent_sock; #endif +/* the strings here must match the enum in include/linux/kobject.h */ +static const char *kobject_actions[] = { + [KOBJ_ADD] = "add", + [KOBJ_REMOVE] = "remove", + [KOBJ_CHANGE] = "change", + [KOBJ_MOVE] = "move", + [KOBJ_ONLINE] = "online", + [KOBJ_OFFLINE] = "offline", +}; + +/** + * kobject_action_type - translate action string to numeric type + * + * @buf: buffer containing the action string, newline is ignored + * @len: length of buffer + * @type: pointer to the location to store the action type + * + * Returns 0 if the action string was recognized. + */ +int kobject_action_type(const char *buf, size_t count, + enum kobject_action *type) +{ + enum kobject_action action; + int ret = -EINVAL; + + if (count && buf[count-1] == '\n') + count--; + + if (!count) + goto out; + + for (action = 0; action < ARRAY_SIZE(kobject_actions); action++) { + if (strncmp(kobject_actions[action], buf, count) != 0) + continue; + if (kobject_actions[action][count] != '\0') + continue; + *type = action; + ret = 0; + break; + } +out: + return ret; +} + /** * kobject_uevent_env - send an uevent with environmental data * @@ -270,5 +303,3 @@ static int __init kobject_uevent_init(void) postcore_initcall(kobject_uevent_init); #endif - -#endif /* CONFIG_HOTPLUG */ -- cgit v1.2.3-58-ga151 From 7ac1cf4a87f446c130f7d8a4fe7e519f532a11de Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sun, 12 Aug 2007 20:43:55 +0200 Subject: Driver core: add uevent file for bus and driver This has been in the SuSE kernels for some time now. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 0a8d075f3e6c..6768a01e210b 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -610,6 +610,17 @@ static inline int add_probe_files(struct bus_type *bus) { return 0; } static inline void remove_probe_files(struct bus_type *bus) {} #endif +static ssize_t driver_uevent_store(struct device_driver *drv, + const char *buf, size_t count) +{ + enum kobject_action action; + + if (kobject_action_type(buf, count, &action) == 0) + kobject_uevent(&drv->kobj, action); + return count; +} +static DRIVER_ATTR(uevent, S_IWUSR, NULL, driver_uevent_store); + /** * bus_add_driver - Add a driver to the bus. * @drv: driver. @@ -640,6 +651,11 @@ int bus_add_driver(struct device_driver *drv) klist_add_tail(&drv->knode_bus, &bus->klist_drivers); module_add_driver(drv->owner, drv); + error = driver_create_file(drv, &driver_attr_uevent); + if (error) { + printk(KERN_ERR "%s: uevent attr (%s) failed\n", + __FUNCTION__, drv->name); + } error = driver_add_attrs(bus, drv); if (error) { /* How the hell do we get out of this pickle? Give up */ @@ -677,6 +693,7 @@ void bus_remove_driver(struct device_driver * drv) remove_bind_files(drv); driver_remove_attrs(drv->bus, drv); + driver_remove_file(drv, &driver_attr_uevent); klist_remove(&drv->knode_bus); pr_debug("bus %s: remove driver %s\n", drv->bus->name, drv->name); driver_detach(drv); @@ -804,6 +821,17 @@ static void klist_devices_put(struct klist_node *n) put_device(dev); } +static ssize_t bus_uevent_store(struct bus_type *bus, + const char *buf, size_t count) +{ + enum kobject_action action; + + if (kobject_action_type(buf, count, &action) == 0) + kobject_uevent(&bus->subsys.kobj, action); + return count; +} +static BUS_ATTR(uevent, S_IWUSR, NULL, bus_uevent_store); + /** * bus_register - register a bus with the system. * @bus: bus. @@ -828,6 +856,10 @@ int bus_register(struct bus_type * bus) if (retval) goto out; + retval = bus_create_file(bus, &bus_attr_uevent); + if (retval) + goto bus_uevent_fail; + kobject_set_name(&bus->devices.kobj, "devices"); bus->devices.kobj.parent = &bus->subsys.kobj; retval = kset_register(&bus->devices); @@ -863,6 +895,8 @@ bus_probe_files_fail: bus_drivers_fail: kset_unregister(&bus->devices); bus_devices_fail: + bus_remove_file(bus, &bus_attr_uevent); +bus_uevent_fail: subsystem_unregister(&bus->subsys); out: return retval; @@ -882,6 +916,7 @@ void bus_unregister(struct bus_type * bus) remove_probe_files(bus); kset_unregister(&bus->drivers); kset_unregister(&bus->devices); + bus_remove_file(bus, &bus_attr_uevent); subsystem_unregister(&bus->subsys); } -- cgit v1.2.3-58-ga151 From 109f0e93b6b728f03c1eb4af02bc25d71b646c59 Mon Sep 17 00:00:00 2001 From: Markus Rechberger Date: Mon, 13 Aug 2007 19:20:43 +0200 Subject: Fix Firmware class name collision following patch fixes the i2c name collision with i2c-dev. http://mcentral.de/wiki/index.php/Bugtracker#i2c_core_problem This issue has been experienced with em28xx and saa7133 based devices. I discussed that problem with Jean Delvare a while ago and he proposed to add a prefix to the class name. Signed-off-by: Markus Rechberger Acked-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- drivers/base/firmware_class.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 4a1b9bfc5471..0295855a3eef 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -292,8 +292,7 @@ firmware_class_timeout(u_long data) static inline void fw_setup_device_id(struct device *f_dev, struct device *dev) { - /* XXX warning we should watch out for name collisions */ - strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE); + snprintf(f_dev->bus_id, BUS_ID_SIZE, "firmware-%s", dev->bus_id); } static int fw_register_device(struct device **dev_p, const char *fw_name, -- cgit v1.2.3-58-ga151 From b4d1eb2ccecb76bce4c2125c5a3e77753fcfaeb0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Fri, 10 Aug 2007 13:51:09 -0700 Subject: drivers/base/power/: make 2 functions static suspend_device() and resume_device() can now become static. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/power.h | 6 ------ drivers/base/power/resume.c | 2 +- drivers/base/power/suspend.c | 2 +- 3 files changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index 8ba0830cbc03..49e64dbcce96 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -55,12 +55,6 @@ extern void dpm_sysfs_remove(struct device *); extern void dpm_resume(void); extern void dpm_power_up(void); -extern int resume_device(struct device *); - -/* - * suspend.c - */ -extern int suspend_device(struct device *, pm_message_t); #else /* CONFIG_PM_SLEEP */ diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c index 00fd84ae6e66..67948bac9938 100644 --- a/drivers/base/power/resume.c +++ b/drivers/base/power/resume.c @@ -20,7 +20,7 @@ * */ -int resume_device(struct device * dev) +static int resume_device(struct device * dev) { int error = 0; diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 26df9b231737..204517afb15e 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -54,7 +54,7 @@ suspend_device_dbg(struct device *dev, pm_message_t state, char *info) * @state: Power state device is entering. */ -int suspend_device(struct device * dev, pm_message_t state) +static int suspend_device(struct device * dev, pm_message_t state) { int error = 0; -- cgit v1.2.3-58-ga151 From 44b760a825fae65629fb04b1deeab68c6bef5c50 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 19 Aug 2007 16:51:14 +0900 Subject: sysdev: remove global sysdev drivers list No one uses sysdev_drivers. Because no one calls sysdev_driver_register with NULL class. And it is difficult to imagine that someone want to implement a global sysdev driver which is called with all sys_device on any kind of sysdev_class. So this patch removes global sysdev_drivers list and update comments for this change. Signed-off-by: Akinobu Mita Cc: Tejun Heo Acked-by: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- drivers/base/sys.c | 71 +++++++++++------------------------------------------- 1 file changed, 14 insertions(+), 57 deletions(-) (limited to 'drivers') diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 7ad893167823..ac7ff6d0c6e5 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -153,25 +153,22 @@ void sysdev_class_unregister(struct sysdev_class * cls) EXPORT_SYMBOL_GPL(sysdev_class_register); EXPORT_SYMBOL_GPL(sysdev_class_unregister); - -static LIST_HEAD(sysdev_drivers); static DEFINE_MUTEX(sysdev_drivers_lock); /** * sysdev_driver_register - Register auxillary driver - * @cls: Device class driver belongs to. + * @cls: Device class driver belongs to. * @drv: Driver. * - * If @cls is valid, then @drv is inserted into @cls->drivers to be + * @drv is inserted into @cls->drivers to be * called on each operation on devices of that class. The refcount * of @cls is incremented. - * Otherwise, @drv is inserted into sysdev_drivers, and called for - * each device. */ -int sysdev_driver_register(struct sysdev_class * cls, - struct sysdev_driver * drv) +int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv) { + int err = 0; + mutex_lock(&sysdev_drivers_lock); if (cls && kset_get(&cls->kset)) { list_add_tail(&drv->entry, &cls->drivers); @@ -182,10 +179,13 @@ int sysdev_driver_register(struct sysdev_class * cls, list_for_each_entry(dev, &cls->kset.list, kobj.entry) drv->add(dev); } - } else - list_add_tail(&drv->entry, &sysdev_drivers); + } else { + err = -EINVAL; + printk(KERN_ERR "%s: invalid device class\n", __FUNCTION__); + WARN_ON(1); + } mutex_unlock(&sysdev_drivers_lock); - return 0; + return err; } @@ -251,12 +251,6 @@ int sysdev_register(struct sys_device * sysdev) * code that should have called us. */ - /* Notify global drivers */ - list_for_each_entry(drv, &sysdev_drivers, entry) { - if (drv->add) - drv->add(sysdev); - } - /* Notify class auxillary drivers */ list_for_each_entry(drv, &cls->drivers, entry) { if (drv->add) @@ -272,11 +266,6 @@ void sysdev_unregister(struct sys_device * sysdev) struct sysdev_driver * drv; mutex_lock(&sysdev_drivers_lock); - list_for_each_entry(drv, &sysdev_drivers, entry) { - if (drv->remove) - drv->remove(sysdev); - } - list_for_each_entry(drv, &sysdev->cls->drivers, entry) { if (drv->remove) drv->remove(sysdev); @@ -293,7 +282,7 @@ void sysdev_unregister(struct sys_device * sysdev) * * Loop over each class of system devices, and the devices in each * of those classes. For each device, we call the shutdown method for - * each driver registered for the device - the globals, the auxillaries, + * each driver registered for the device - the auxillaries, * and the class driver. * * Note: The list is iterated in reverse order, so that we shut down @@ -320,13 +309,7 @@ void sysdev_shutdown(void) struct sysdev_driver * drv; pr_debug(" %s\n", kobject_name(&sysdev->kobj)); - /* Call global drivers first. */ - list_for_each_entry(drv, &sysdev_drivers, entry) { - if (drv->shutdown) - drv->shutdown(sysdev); - } - - /* Call auxillary drivers next. */ + /* Call auxillary drivers first */ list_for_each_entry(drv, &cls->drivers, entry) { if (drv->shutdown) drv->shutdown(sysdev); @@ -354,12 +337,6 @@ static void __sysdev_resume(struct sys_device *dev) if (drv->resume) drv->resume(dev); } - - /* Call global drivers. */ - list_for_each_entry(drv, &sysdev_drivers, entry) { - if (drv->resume) - drv->resume(dev); - } } /** @@ -393,16 +370,7 @@ int sysdev_suspend(pm_message_t state) list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) { pr_debug(" %s\n", kobject_name(&sysdev->kobj)); - /* Call global drivers first. */ - list_for_each_entry(drv, &sysdev_drivers, entry) { - if (drv->suspend) { - ret = drv->suspend(sysdev, state); - if (ret) - goto gbl_driver; - } - } - - /* Call auxillary drivers next. */ + /* Call auxillary drivers first */ list_for_each_entry(drv, &cls->drivers, entry) { if (drv->suspend) { ret = drv->suspend(sysdev, state); @@ -436,18 +404,7 @@ aux_driver: if (err_drv->resume) err_drv->resume(sysdev); } - drv = NULL; -gbl_driver: - if (drv) - printk(KERN_ERR "sysdev driver suspend failed for %s\n", - kobject_name(&sysdev->kobj)); - list_for_each_entry(err_drv, &sysdev_drivers, entry) { - if (err_drv == drv) - break; - if (err_drv->resume) - err_drv->resume(sysdev); - } /* resume other sysdevs in current class */ list_for_each_entry(err_dev, &cls->kset.list, kobj.entry) { if (err_dev == sysdev) -- cgit v1.2.3-58-ga151 From 1359555eb77d240b7c1d7ee75bb07e89e89770e4 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 9 Sep 2007 12:54:16 +0200 Subject: Driver core: Make platform_device.id an int While platform_device.id is a u32, platform_device_add() handles "-1" as a special id value. This has potential for confusion and bugs. Making it an int instead should prevent problems from happening in the future. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/base/platform.c | 7 ++++--- include/linux/platform_device.h | 7 ++++--- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/base/platform.c b/drivers/base/platform.c index a2e3910196e0..fb5609241482 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -161,7 +161,7 @@ static void platform_device_release(struct device *dev) * Create a platform device object which can have other objects attached * to it, and which will have attached objects freed when it is released. */ -struct platform_device *platform_device_alloc(const char *name, unsigned int id) +struct platform_device *platform_device_alloc(const char *name, int id) { struct platform_object *pa; @@ -245,7 +245,8 @@ int platform_device_add(struct platform_device *pdev) pdev->dev.bus = &platform_bus_type; if (pdev->id != -1) - snprintf(pdev->dev.bus_id, BUS_ID_SIZE, "%s.%u", pdev->name, pdev->id); + snprintf(pdev->dev.bus_id, BUS_ID_SIZE, "%s.%d", pdev->name, + pdev->id); else strlcpy(pdev->dev.bus_id, pdev->name, BUS_ID_SIZE); @@ -359,7 +360,7 @@ EXPORT_SYMBOL_GPL(platform_device_unregister); * the Linux driver model. In particular, when such drivers are built * as modules, they can't be "hotplugged". */ -struct platform_device *platform_device_register_simple(char *name, unsigned int id, +struct platform_device *platform_device_register_simple(char *name, int id, struct resource *res, unsigned int num) { struct platform_device *pdev; diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 8bbd459eafdc..e80804316cdb 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -15,7 +15,7 @@ struct platform_device { const char * name; - u32 id; + int id; struct device dev; u32 num_resources; struct resource * resource; @@ -35,9 +35,10 @@ extern struct resource *platform_get_resource_byname(struct platform_device *, u extern int platform_get_irq_byname(struct platform_device *, char *); extern int platform_add_devices(struct platform_device **, int); -extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int); +extern struct platform_device *platform_device_register_simple(char *, int id, + struct resource *, unsigned int); -extern struct platform_device *platform_device_alloc(const char *name, unsigned int id); +extern struct platform_device *platform_device_alloc(const char *name, int id); extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num); extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size); extern int platform_device_add(struct platform_device *pdev); -- cgit v1.2.3-58-ga151 From dc8c85871c9728c5fddca6854a191fd41eb9438c Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Wed, 15 Aug 2007 12:25:38 +0200 Subject: PTY: add kernel parameter to overwrite legacy pty count Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- Documentation/kernel-parameters.txt | 4 ++++ drivers/char/pty.c | 9 +++++++-- include/linux/tty.h | 1 - 3 files changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a57c1f216b21..bdddd3cd46dd 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1430,6 +1430,10 @@ and is between 256 and 4096 characters. It is defined in the file pt. [PARIDE] See Documentation/paride.txt. + pty.legacy_count= + [KNL] Number of legacy pty's. Overwrites compiled-in + default number. + quiet [KNL] Disable most log messages r128= [HW,DRM] diff --git a/drivers/char/pty.c b/drivers/char/pty.c index de14aea34e11..73de77105fea 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -248,14 +248,19 @@ static int pty_bsd_ioctl(struct tty_struct *tty, struct file *file, return -ENOIOCTLCMD; } +static int legacy_count = CONFIG_LEGACY_PTY_COUNT; +module_param(legacy_count, int, 0); + static void __init legacy_pty_init(void) { + if (legacy_count <= 0) + return; - pty_driver = alloc_tty_driver(NR_PTYS); + pty_driver = alloc_tty_driver(legacy_count); if (!pty_driver) panic("Couldn't allocate pty driver"); - pty_slave_driver = alloc_tty_driver(NR_PTYS); + pty_slave_driver = alloc_tty_driver(legacy_count); if (!pty_slave_driver) panic("Couldn't allocate pty slave driver"); diff --git a/include/linux/tty.h b/include/linux/tty.h index 6570719eafdf..60478f6e5dc6 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -21,7 +21,6 @@ * (Note: the *_driver.minor_start values 1, 64, 128, 192 are * hardcoded at present.) */ -#define NR_PTYS CONFIG_LEGACY_PTY_COUNT /* Number of legacy ptys */ #define NR_UNIX98_PTY_DEFAULT 4096 /* Default maximum for Unix98 ptys */ #define NR_UNIX98_PTY_MAX (1 << MINORBITS) /* Absolute limit */ #define NR_LDISCS 17 -- cgit v1.2.3-58-ga151 From 5a7ad7f044941316dc98eda2a087a12a7a50649d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 20 Sep 2007 16:05:10 +0900 Subject: sysfs: kill sysfs_update_file() sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now reclaimable making the reported modification time unreliable. There's only one user (pci hotplug) of this notification mechanism and it reportedly isn't utilized from userland. Kill sysfs_update_file(). Signed-off-by: Tejun Heo Acked-by: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pci_hotplug_core.c | 60 ---------------------------------- fs/sysfs/file.c | 40 ----------------------- include/linux/sysfs.h | 7 ---- 3 files changed, 107 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index bd433ef6bfc6..f0eba534f805 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -694,66 +694,6 @@ int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot, if ((slot == NULL) || (info == NULL)) return -ENODEV; - /* - * check all fields in the info structure, and update timestamps - * for the files referring to the fields that have now changed. - */ - if ((has_power_file(slot) == 0) && - (slot->info->power_status != info->power_status)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_power.attr); - if (retval) - return retval; - } - - if ((has_attention_file(slot) == 0) && - (slot->info->attention_status != info->attention_status)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_attention.attr); - if (retval) - return retval; - } - - if ((has_latch_file(slot) == 0) && - (slot->info->latch_status != info->latch_status)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_latch.attr); - if (retval) - return retval; - } - - if ((has_adapter_file(slot) == 0) && - (slot->info->adapter_status != info->adapter_status)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_presence.attr); - if (retval) - return retval; - } - - if ((has_address_file(slot) == 0) && - (slot->info->address != info->address)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_address.attr); - if (retval) - return retval; - } - - if ((has_max_bus_speed_file(slot) == 0) && - (slot->info->max_bus_speed != info->max_bus_speed)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_max_bus_speed.attr); - if (retval) - return retval; - } - - if ((has_cur_bus_speed_file(slot) == 0) && - (slot->info->cur_bus_speed != info->cur_bus_speed)) { - retval = sysfs_update_file(&slot->kobj, - &hotplug_slot_attr_cur_bus_speed.attr); - if (retval) - return retval; - } - memcpy (slot->info, info, sizeof (struct hotplug_slot_info)); return 0; diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index 9fdf8dae0dcd..61a8c19df7c3 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -3,7 +3,6 @@ */ #include -#include #include #include #include @@ -453,44 +452,6 @@ int sysfs_add_file_to_group(struct kobject *kobj, } EXPORT_SYMBOL_GPL(sysfs_add_file_to_group); - -/** - * sysfs_update_file - update the modified timestamp on an object attribute. - * @kobj: object we're acting for. - * @attr: attribute descriptor. - */ -int sysfs_update_file(struct kobject * kobj, const struct attribute * attr) -{ - struct sysfs_dirent *victim_sd = NULL; - struct dentry *victim = NULL; - int rc; - - rc = -ENOENT; - victim_sd = sysfs_get_dirent(kobj->sd, attr->name); - if (!victim_sd) - goto out; - - mutex_lock(&sysfs_rename_mutex); - victim = sysfs_get_dentry(victim_sd); - mutex_unlock(&sysfs_rename_mutex); - if (IS_ERR(victim)) { - rc = PTR_ERR(victim); - victim = NULL; - goto out; - } - - mutex_lock(&victim->d_inode->i_mutex); - victim->d_inode->i_mtime = CURRENT_TIME; - fsnotify_modify(victim); - mutex_unlock(&victim->d_inode->i_mutex); - rc = 0; - out: - dput(victim); - sysfs_put(victim_sd); - return rc; -} - - /** * sysfs_chmod_file - update the modified mode value on an object attribute. * @kobj: object we're acting for. @@ -641,4 +602,3 @@ EXPORT_SYMBOL_GPL(sysfs_schedule_callback); EXPORT_SYMBOL_GPL(sysfs_create_file); EXPORT_SYMBOL_GPL(sysfs_remove_file); -EXPORT_SYMBOL_GPL(sysfs_update_file); diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index b393bb449624..db5dd2403d08 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -87,8 +87,6 @@ int __must_check sysfs_move_dir(struct kobject *kobj, int __must_check sysfs_create_file(struct kobject *kobj, const struct attribute *attr); -int __must_check sysfs_update_file(struct kobject *kobj, - const struct attribute *attr); int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode); void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr); @@ -149,11 +147,6 @@ static inline int sysfs_create_file(struct kobject *kobj, return 0; } -static inline int sysfs_update_file(struct kobject *kobj, - const struct attribute *attr) -{ - return 0; -} static inline int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode) { -- cgit v1.2.3-58-ga151 From e4bc16621d82ee1fd3685dcbf889a7c49891847b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 26 Sep 2007 11:12:00 -0700 Subject: driver core: remove subsystem_init() There is only one user of it, and it is only a wrapper for kset_init(). Signed-off-by: Greg Kroah-Hartman --- Documentation/kobject.txt | 1 - drivers/base/class.c | 2 +- include/linux/kobject.h | 1 - lib/kobject.c | 5 ----- 4 files changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers') diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt index 5e7aca261359..ca86a885ad8f 100644 --- a/Documentation/kobject.txt +++ b/Documentation/kobject.txt @@ -238,7 +238,6 @@ kobj_set_kset_s(obj,subsys) - Assumes that obj->kobj exists, and is a struct kobject. - Sets the kset of that kobject to the kset . -void subsystem_init(struct kset *s); int subsystem_register(struct kset *s); void subsystem_unregister(struct kset *s); diff --git a/drivers/base/class.c b/drivers/base/class.c index 3e9b04c30fb9..5b9cf06eab8f 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -861,7 +861,7 @@ int __init classes_init(void) /* ick, this is ugly, the things we go through to keep from showing up * in sysfs... */ - subsystem_init(&class_obj_subsys); + kset_init(&class_obj_subsys); if (!class_obj_subsys.kobj.parent) class_obj_subsys.kobj.parent = &class_obj_subsys.kobj; return 0; diff --git a/include/linux/kobject.h b/include/linux/kobject.h index a8a84fcccbc0..05cc5b2ddfff 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -217,7 +217,6 @@ extern struct kset hypervisor_subsys; #define kobj_set_kset_s(obj,subsys) \ (obj)->kobj.kset = &(subsys) -extern void subsystem_init(struct kset *); extern int __must_check subsystem_register(struct kset *); extern void subsystem_unregister(struct kset *); diff --git a/lib/kobject.c b/lib/kobject.c index fc6db6b4bfc5..b7e0646f7977 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -617,11 +617,6 @@ struct kobject * kset_find_obj(struct kset * kset, const char * name) return ret; } -void subsystem_init(struct kset *s) -{ - kset_init(s); -} - int subsystem_register(struct kset *s) { return kset_register(s); -- cgit v1.2.3-58-ga151 From adc56808f32e15fa0c0fcd5ecb4b30989076ef2b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 11 Oct 2007 10:47:49 -0600 Subject: Driver core: rename ktype_class This makes it a bit more sane when trying to figure out how to clean up the ktype mess. Based on a larger patch from Kay Sievers Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/base/class.c b/drivers/base/class.c index 5b9cf06eab8f..a863bb091e11 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -65,13 +65,13 @@ static struct sysfs_ops class_sysfs_ops = { .store = class_attr_store, }; -static struct kobj_type ktype_class = { +static struct kobj_type class_ktype = { .sysfs_ops = &class_sysfs_ops, .release = class_release, }; /* Hotplug events for classes go to the class_obj subsys */ -static decl_subsys(class, &ktype_class, NULL); +static decl_subsys(class, &class_ktype, NULL); int class_create_file(struct class * cls, const struct class_attribute * attr) @@ -323,7 +323,7 @@ static void class_dev_release(struct kobject * kobj) } } -static struct kobj_type ktype_class_device = { +static struct kobj_type class_device_ktype = { .sysfs_ops = &class_dev_sysfs_ops, .release = class_dev_release, }; @@ -332,7 +332,7 @@ static int class_uevent_filter(struct kset *kset, struct kobject *kobj) { struct kobj_type *ktype = get_ktype(kobj); - if (ktype == &ktype_class_device) { + if (ktype == &class_device_ktype) { struct class_device *class_dev = to_class_dev(kobj); if (class_dev->class) return 1; @@ -452,7 +452,7 @@ static struct kset_uevent_ops class_uevent_ops = { .uevent = class_uevent, }; -static decl_subsys(class_obj, &ktype_class_device, &class_uevent_ops); +static decl_subsys(class_obj, &class_device_ktype, &class_uevent_ops); static int class_device_add_attrs(struct class_device * cd) -- cgit v1.2.3-58-ga151 From 8f4afc410b8d2be49f34835b6bbe788f50471b02 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 11 Oct 2007 10:47:49 -0600 Subject: Driver core: rename ktype_device This makes it a bit more sane when trying to figure out how to clean up the ktype mess. Based on a larger patch from Kay Sievers Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/base/core.c b/drivers/base/core.c index 65de221e3bfa..c1343414d285 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -108,7 +108,7 @@ static void device_release(struct kobject * kobj) } } -static struct kobj_type ktype_device = { +static struct kobj_type device_ktype = { .release = device_release, .sysfs_ops = &dev_sysfs_ops, }; @@ -118,7 +118,7 @@ static int dev_uevent_filter(struct kset *kset, struct kobject *kobj) { struct kobj_type *ktype = get_ktype(kobj); - if (ktype == &ktype_device) { + if (ktype == &device_ktype) { struct device *dev = to_dev(kobj); if (dev->uevent_suppress) return 0; @@ -405,7 +405,7 @@ static struct device_attribute devt_attr = * devices_subsys - structure to be registered with kobject core. */ -decl_subsys(devices, &ktype_device, &device_uevent_ops); +decl_subsys(devices, &device_ktype, &device_uevent_ops); /** -- cgit v1.2.3-58-ga151 From a1148fb03f3c5d0bb5e6641234c2251a15741361 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 11 Oct 2007 10:47:49 -0600 Subject: Driver core: rename ktype_driver This makes it a bit more sane when trying to figure out how to clean up the ktype mess. Based on a larger patch from Kay Sievers Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 6768a01e210b..9a19b071c573 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -89,7 +89,7 @@ static void driver_release(struct kobject * kobj) */ } -static struct kobj_type ktype_driver = { +static struct kobj_type driver_ktype = { .sysfs_ops = &driver_sysfs_ops, .release = driver_release, }; @@ -868,7 +868,7 @@ int bus_register(struct bus_type * bus) kobject_set_name(&bus->drivers.kobj, "drivers"); bus->drivers.kobj.parent = &bus->subsys.kobj; - bus->drivers.ktype = &ktype_driver; + bus->drivers.ktype = &driver_ktype; retval = kset_register(&bus->drivers); if (retval) goto bus_drivers_fail; -- cgit v1.2.3-58-ga151 From e89a4116ef345cf10c21f722dd1d8bfa9b7c7d58 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 11 Oct 2007 10:47:49 -0600 Subject: Driver core: rename ktype_edd and ktype_efivar This makes it a bit more sane when trying to figure out how to clean up the ktype mess. Based on a larger patch from Kay Sievers Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/firmware/edd.c | 4 ++-- drivers/firmware/efivars.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c index 0fb730ee1da8..6942e065e609 100644 --- a/drivers/firmware/edd.c +++ b/drivers/firmware/edd.c @@ -625,13 +625,13 @@ static void edd_release(struct kobject * kobj) kfree(dev); } -static struct kobj_type ktype_edd = { +static struct kobj_type edd_ktype = { .release = edd_release, .sysfs_ops = &edd_attr_ops, .default_attrs = def_attrs, }; -static decl_subsys(edd,&ktype_edd,NULL); +static decl_subsys(edd, &edd_ktype, NULL); /** diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index bfd2d67df689..858a7b95933b 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -402,7 +402,7 @@ static struct attribute *def_attrs[] = { NULL, }; -static struct kobj_type ktype_efivar = { +static struct kobj_type efivar_ktype = { .release = efivar_release, .sysfs_ops = &efivar_attr_ops, .default_attrs = def_attrs, @@ -583,7 +583,7 @@ static struct subsys_attribute *efi_subsys_attrs[] = { NULL, /* maybe more in the future? */ }; -static decl_subsys(vars, &ktype_efivar, NULL); +static decl_subsys(vars, &efivar_ktype, NULL); static decl_subsys(efi, NULL, NULL); /* -- cgit v1.2.3-58-ga151 From cd59abfcc441b2abb4cf2cd62c1eb0f02a60e8dd Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 21 Sep 2007 15:36:56 -0400 Subject: PM: merge device power-management source files This patch (as993) merges the suspend.c and resume.c files in drivers/base/power into main.c, making some public symbols private. Signed-off-by: Alan Stern Acked-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/Makefile | 2 +- drivers/base/power/main.c | 344 ++++++++++++++++++++++++++++++++++++++++++- drivers/base/power/power.h | 32 +--- drivers/base/power/resume.c | 149 ------------------- drivers/base/power/suspend.c | 210 -------------------------- 5 files changed, 343 insertions(+), 394 deletions(-) delete mode 100644 drivers/base/power/resume.c delete mode 100644 drivers/base/power/suspend.c (limited to 'drivers') diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile index 9caeaea753a3..a803733c839e 100644 --- a/drivers/base/power/Makefile +++ b/drivers/base/power/Makefile @@ -1,5 +1,5 @@ obj-y := shutdown.o -obj-$(CONFIG_PM_SLEEP) += main.o suspend.o resume.o sysfs.o +obj-$(CONFIG_PM_SLEEP) += main.o sysfs.o obj-$(CONFIG_PM_TRACE) += trace.o ifeq ($(CONFIG_DEBUG_DRIVER),y) diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index eb9f38d0aa58..0ab4ab21f564 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -20,19 +20,24 @@ */ #include +#include #include +#include +#include +#include "../base.h" #include "power.h" LIST_HEAD(dpm_active); -LIST_HEAD(dpm_off); -LIST_HEAD(dpm_off_irq); +static LIST_HEAD(dpm_off); +static LIST_HEAD(dpm_off_irq); -DEFINE_MUTEX(dpm_mtx); -DEFINE_MUTEX(dpm_list_mtx); +static DEFINE_MUTEX(dpm_mtx); +static DEFINE_MUTEX(dpm_list_mtx); int (*platform_enable_wakeup)(struct device *dev, int is_on); + int device_pm_add(struct device *dev) { int error; @@ -61,3 +66,334 @@ void device_pm_remove(struct device *dev) } +/*------------------------- Resume routines -------------------------*/ + +/** + * resume_device - Restore state for one device. + * @dev: Device. + * + */ + +static int resume_device(struct device * dev) +{ + int error = 0; + + TRACE_DEVICE(dev); + TRACE_RESUME(0); + + down(&dev->sem); + + if (dev->bus && dev->bus->resume) { + dev_dbg(dev,"resuming\n"); + error = dev->bus->resume(dev); + } + + if (!error && dev->type && dev->type->resume) { + dev_dbg(dev,"resuming\n"); + error = dev->type->resume(dev); + } + + if (!error && dev->class && dev->class->resume) { + dev_dbg(dev,"class resume\n"); + error = dev->class->resume(dev); + } + + up(&dev->sem); + + TRACE_RESUME(error); + return error; +} + + +static int resume_device_early(struct device * dev) +{ + int error = 0; + + TRACE_DEVICE(dev); + TRACE_RESUME(0); + if (dev->bus && dev->bus->resume_early) { + dev_dbg(dev,"EARLY resume\n"); + error = dev->bus->resume_early(dev); + } + TRACE_RESUME(error); + return error; +} + +/* + * Resume the devices that have either not gone through + * the late suspend, or that did go through it but also + * went through the early resume + */ +static void dpm_resume(void) +{ + mutex_lock(&dpm_list_mtx); + while(!list_empty(&dpm_off)) { + struct list_head * entry = dpm_off.next; + struct device * dev = to_device(entry); + + get_device(dev); + list_move_tail(entry, &dpm_active); + + mutex_unlock(&dpm_list_mtx); + resume_device(dev); + mutex_lock(&dpm_list_mtx); + put_device(dev); + } + mutex_unlock(&dpm_list_mtx); +} + + +/** + * device_resume - Restore state of each device in system. + * + * Walk the dpm_off list, remove each entry, resume the device, + * then add it to the dpm_active list. + */ + +void device_resume(void) +{ + might_sleep(); + mutex_lock(&dpm_mtx); + dpm_resume(); + mutex_unlock(&dpm_mtx); +} + +EXPORT_SYMBOL_GPL(device_resume); + + +/** + * dpm_power_up - Power on some devices. + * + * Walk the dpm_off_irq list and power each device up. This + * is used for devices that required they be powered down with + * interrupts disabled. As devices are powered on, they are moved + * to the dpm_active list. + * + * Interrupts must be disabled when calling this. + */ + +static void dpm_power_up(void) +{ + while(!list_empty(&dpm_off_irq)) { + struct list_head * entry = dpm_off_irq.next; + struct device * dev = to_device(entry); + + list_move_tail(entry, &dpm_off); + resume_device_early(dev); + } +} + + +/** + * device_power_up - Turn on all devices that need special attention. + * + * Power on system devices then devices that required we shut them down + * with interrupts disabled. + * Called with interrupts disabled. + */ + +void device_power_up(void) +{ + sysdev_resume(); + dpm_power_up(); +} + +EXPORT_SYMBOL_GPL(device_power_up); + + +/*------------------------- Suspend routines -------------------------*/ + +/* + * The entries in the dpm_active list are in a depth first order, simply + * because children are guaranteed to be discovered after parents, and + * are inserted at the back of the list on discovery. + * + * All list on the suspend path are done in reverse order, so we operate + * on the leaves of the device tree (or forests, depending on how you want + * to look at it ;) first. As nodes are removed from the back of the list, + * they are inserted into the front of their destintation lists. + * + * Things are the reverse on the resume path - iterations are done in + * forward order, and nodes are inserted at the back of their destination + * lists. This way, the ancestors will be accessed before their descendents. + */ + +static inline char *suspend_verb(u32 event) +{ + switch (event) { + case PM_EVENT_SUSPEND: return "suspend"; + case PM_EVENT_FREEZE: return "freeze"; + case PM_EVENT_PRETHAW: return "prethaw"; + default: return "(unknown suspend event)"; + } +} + + +static void +suspend_device_dbg(struct device *dev, pm_message_t state, char *info) +{ + dev_dbg(dev, "%s%s%s\n", info, suspend_verb(state.event), + ((state.event == PM_EVENT_SUSPEND) && device_may_wakeup(dev)) ? + ", may wakeup" : ""); +} + +/** + * suspend_device - Save state of one device. + * @dev: Device. + * @state: Power state device is entering. + */ + +static int suspend_device(struct device * dev, pm_message_t state) +{ + int error = 0; + + down(&dev->sem); + if (dev->power.power_state.event) { + dev_dbg(dev, "PM: suspend %d-->%d\n", + dev->power.power_state.event, state.event); + } + + if (dev->class && dev->class->suspend) { + suspend_device_dbg(dev, state, "class "); + error = dev->class->suspend(dev, state); + suspend_report_result(dev->class->suspend, error); + } + + if (!error && dev->type && dev->type->suspend) { + suspend_device_dbg(dev, state, "type "); + error = dev->type->suspend(dev, state); + suspend_report_result(dev->type->suspend, error); + } + + if (!error && dev->bus && dev->bus->suspend) { + suspend_device_dbg(dev, state, ""); + error = dev->bus->suspend(dev, state); + suspend_report_result(dev->bus->suspend, error); + } + up(&dev->sem); + return error; +} + + +/* + * This is called with interrupts off, only a single CPU + * running. We can't acquire a mutex or semaphore (and we don't + * need the protection) + */ +static int suspend_device_late(struct device *dev, pm_message_t state) +{ + int error = 0; + + if (dev->bus && dev->bus->suspend_late) { + suspend_device_dbg(dev, state, "LATE "); + error = dev->bus->suspend_late(dev, state); + suspend_report_result(dev->bus->suspend_late, error); + } + return error; +} + +/** + * device_suspend - Save state and stop all devices in system. + * @state: Power state to put each device in. + * + * Walk the dpm_active list, call ->suspend() for each device, and move + * it to the dpm_off list. + * + * (For historical reasons, if it returns -EAGAIN, that used to mean + * that the device would be called again with interrupts disabled. + * These days, we use the "suspend_late()" callback for that, so we + * print a warning and consider it an error). + * + * If we get a different error, try and back out. + * + * If we hit a failure with any of the devices, call device_resume() + * above to bring the suspended devices back to life. + * + */ + +int device_suspend(pm_message_t state) +{ + int error = 0; + + might_sleep(); + mutex_lock(&dpm_mtx); + mutex_lock(&dpm_list_mtx); + while (!list_empty(&dpm_active) && error == 0) { + struct list_head * entry = dpm_active.prev; + struct device * dev = to_device(entry); + + get_device(dev); + mutex_unlock(&dpm_list_mtx); + + error = suspend_device(dev, state); + + mutex_lock(&dpm_list_mtx); + + /* Check if the device got removed */ + if (!list_empty(&dev->power.entry)) { + /* Move it to the dpm_off list */ + if (!error) + list_move(&dev->power.entry, &dpm_off); + } + if (error) + printk(KERN_ERR "Could not suspend device %s: " + "error %d%s\n", + kobject_name(&dev->kobj), error, + error == -EAGAIN ? " (please convert to suspend_late)" : ""); + put_device(dev); + } + mutex_unlock(&dpm_list_mtx); + if (error) + dpm_resume(); + + mutex_unlock(&dpm_mtx); + return error; +} + +EXPORT_SYMBOL_GPL(device_suspend); + +/** + * device_power_down - Shut down special devices. + * @state: Power state to enter. + * + * Walk the dpm_off_irq list, calling ->power_down() for each device that + * couldn't power down the device with interrupts enabled. When we're + * done, power down system devices. + */ + +int device_power_down(pm_message_t state) +{ + int error = 0; + struct device * dev; + + while (!list_empty(&dpm_off)) { + struct list_head * entry = dpm_off.prev; + + dev = to_device(entry); + error = suspend_device_late(dev, state); + if (error) + goto Error; + list_move(&dev->power.entry, &dpm_off_irq); + } + + error = sysdev_suspend(state); + Done: + return error; + Error: + printk(KERN_ERR "Could not power down device %s: " + "error %d\n", kobject_name(&dev->kobj), error); + dpm_power_up(); + goto Done; +} + +EXPORT_SYMBOL_GPL(device_power_down); + +void __suspend_report_result(const char *function, void *fn, int ret) +{ + if (ret) { + printk(KERN_ERR "%s(): ", function); + print_fn_descriptor_symbol("%s() returns ", (unsigned long)fn); + printk("%d\n", ret); + } +} +EXPORT_SYMBOL_GPL(__suspend_report_result); diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index 49e64dbcce96..5c4efd493fa5 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -11,32 +11,11 @@ extern void device_shutdown(void); * main.c */ -/* - * Used to synchronize global power management operations. - */ -extern struct mutex dpm_mtx; - -/* - * Used to serialize changes to the dpm_* lists. - */ -extern struct mutex dpm_list_mtx; - -/* - * The PM lists. - */ -extern struct list_head dpm_active; -extern struct list_head dpm_off; -extern struct list_head dpm_off_irq; - - -static inline struct dev_pm_info * to_pm_info(struct list_head * entry) -{ - return container_of(entry, struct dev_pm_info, entry); -} +extern struct list_head dpm_active; /* The active device list */ static inline struct device * to_device(struct list_head * entry) { - return container_of(to_pm_info(entry), struct device, power); + return container_of(entry, struct device, power.entry); } extern int device_pm_add(struct device *); @@ -49,13 +28,6 @@ extern void device_pm_remove(struct device *); extern int dpm_sysfs_add(struct device *); extern void dpm_sysfs_remove(struct device *); -/* - * resume.c - */ - -extern void dpm_resume(void); -extern void dpm_power_up(void); - #else /* CONFIG_PM_SLEEP */ diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c deleted file mode 100644 index 67948bac9938..000000000000 --- a/drivers/base/power/resume.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * resume.c - Functions for waking devices up. - * - * Copyright (c) 2003 Patrick Mochel - * Copyright (c) 2003 Open Source Development Labs - * - * This file is released under the GPLv2 - * - */ - -#include -#include -#include "../base.h" -#include "power.h" - - -/** - * resume_device - Restore state for one device. - * @dev: Device. - * - */ - -static int resume_device(struct device * dev) -{ - int error = 0; - - TRACE_DEVICE(dev); - TRACE_RESUME(0); - - down(&dev->sem); - - if (dev->bus && dev->bus->resume) { - dev_dbg(dev,"resuming\n"); - error = dev->bus->resume(dev); - } - - if (!error && dev->type && dev->type->resume) { - dev_dbg(dev,"resuming\n"); - error = dev->type->resume(dev); - } - - if (!error && dev->class && dev->class->resume) { - dev_dbg(dev,"class resume\n"); - error = dev->class->resume(dev); - } - - up(&dev->sem); - - TRACE_RESUME(error); - return error; -} - - -static int resume_device_early(struct device * dev) -{ - int error = 0; - - TRACE_DEVICE(dev); - TRACE_RESUME(0); - if (dev->bus && dev->bus->resume_early) { - dev_dbg(dev,"EARLY resume\n"); - error = dev->bus->resume_early(dev); - } - TRACE_RESUME(error); - return error; -} - -/* - * Resume the devices that have either not gone through - * the late suspend, or that did go through it but also - * went through the early resume - */ -void dpm_resume(void) -{ - mutex_lock(&dpm_list_mtx); - while(!list_empty(&dpm_off)) { - struct list_head * entry = dpm_off.next; - struct device * dev = to_device(entry); - - get_device(dev); - list_move_tail(entry, &dpm_active); - - mutex_unlock(&dpm_list_mtx); - resume_device(dev); - mutex_lock(&dpm_list_mtx); - put_device(dev); - } - mutex_unlock(&dpm_list_mtx); -} - - -/** - * device_resume - Restore state of each device in system. - * - * Walk the dpm_off list, remove each entry, resume the device, - * then add it to the dpm_active list. - */ - -void device_resume(void) -{ - might_sleep(); - mutex_lock(&dpm_mtx); - dpm_resume(); - mutex_unlock(&dpm_mtx); -} - -EXPORT_SYMBOL_GPL(device_resume); - - -/** - * dpm_power_up - Power on some devices. - * - * Walk the dpm_off_irq list and power each device up. This - * is used for devices that required they be powered down with - * interrupts disabled. As devices are powered on, they are moved - * to the dpm_active list. - * - * Interrupts must be disabled when calling this. - */ - -void dpm_power_up(void) -{ - while(!list_empty(&dpm_off_irq)) { - struct list_head * entry = dpm_off_irq.next; - struct device * dev = to_device(entry); - - list_move_tail(entry, &dpm_off); - resume_device_early(dev); - } -} - - -/** - * device_power_up - Turn on all devices that need special attention. - * - * Power on system devices then devices that required we shut them down - * with interrupts disabled. - * Called with interrupts disabled. - */ - -void device_power_up(void) -{ - sysdev_resume(); - dpm_power_up(); -} - -EXPORT_SYMBOL_GPL(device_power_up); - - diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c deleted file mode 100644 index 204517afb15e..000000000000 --- a/drivers/base/power/suspend.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * suspend.c - Functions for putting devices to sleep. - * - * Copyright (c) 2003 Patrick Mochel - * Copyright (c) 2003 Open Source Development Labs - * - * This file is released under the GPLv2 - * - */ - -#include -#include -#include -#include "../base.h" -#include "power.h" - -/* - * The entries in the dpm_active list are in a depth first order, simply - * because children are guaranteed to be discovered after parents, and - * are inserted at the back of the list on discovery. - * - * All list on the suspend path are done in reverse order, so we operate - * on the leaves of the device tree (or forests, depending on how you want - * to look at it ;) first. As nodes are removed from the back of the list, - * they are inserted into the front of their destintation lists. - * - * Things are the reverse on the resume path - iterations are done in - * forward order, and nodes are inserted at the back of their destination - * lists. This way, the ancestors will be accessed before their descendents. - */ - -static inline char *suspend_verb(u32 event) -{ - switch (event) { - case PM_EVENT_SUSPEND: return "suspend"; - case PM_EVENT_FREEZE: return "freeze"; - case PM_EVENT_PRETHAW: return "prethaw"; - default: return "(unknown suspend event)"; - } -} - - -static void -suspend_device_dbg(struct device *dev, pm_message_t state, char *info) -{ - dev_dbg(dev, "%s%s%s\n", info, suspend_verb(state.event), - ((state.event == PM_EVENT_SUSPEND) && device_may_wakeup(dev)) ? - ", may wakeup" : ""); -} - -/** - * suspend_device - Save state of one device. - * @dev: Device. - * @state: Power state device is entering. - */ - -static int suspend_device(struct device * dev, pm_message_t state) -{ - int error = 0; - - down(&dev->sem); - if (dev->power.power_state.event) { - dev_dbg(dev, "PM: suspend %d-->%d\n", - dev->power.power_state.event, state.event); - } - - if (dev->class && dev->class->suspend) { - suspend_device_dbg(dev, state, "class "); - error = dev->class->suspend(dev, state); - suspend_report_result(dev->class->suspend, error); - } - - if (!error && dev->type && dev->type->suspend) { - suspend_device_dbg(dev, state, "type "); - error = dev->type->suspend(dev, state); - suspend_report_result(dev->type->suspend, error); - } - - if (!error && dev->bus && dev->bus->suspend) { - suspend_device_dbg(dev, state, ""); - error = dev->bus->suspend(dev, state); - suspend_report_result(dev->bus->suspend, error); - } - up(&dev->sem); - return error; -} - - -/* - * This is called with interrupts off, only a single CPU - * running. We can't acquire a mutex or semaphore (and we don't - * need the protection) - */ -static int suspend_device_late(struct device *dev, pm_message_t state) -{ - int error = 0; - - if (dev->bus && dev->bus->suspend_late) { - suspend_device_dbg(dev, state, "LATE "); - error = dev->bus->suspend_late(dev, state); - suspend_report_result(dev->bus->suspend_late, error); - } - return error; -} - -/** - * device_suspend - Save state and stop all devices in system. - * @state: Power state to put each device in. - * - * Walk the dpm_active list, call ->suspend() for each device, and move - * it to the dpm_off list. - * - * (For historical reasons, if it returns -EAGAIN, that used to mean - * that the device would be called again with interrupts disabled. - * These days, we use the "suspend_late()" callback for that, so we - * print a warning and consider it an error). - * - * If we get a different error, try and back out. - * - * If we hit a failure with any of the devices, call device_resume() - * above to bring the suspended devices back to life. - * - */ - -int device_suspend(pm_message_t state) -{ - int error = 0; - - might_sleep(); - mutex_lock(&dpm_mtx); - mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_active) && error == 0) { - struct list_head * entry = dpm_active.prev; - struct device * dev = to_device(entry); - - get_device(dev); - mutex_unlock(&dpm_list_mtx); - - error = suspend_device(dev, state); - - mutex_lock(&dpm_list_mtx); - - /* Check if the device got removed */ - if (!list_empty(&dev->power.entry)) { - /* Move it to the dpm_off list */ - if (!error) - list_move(&dev->power.entry, &dpm_off); - } - if (error) - printk(KERN_ERR "Could not suspend device %s: " - "error %d%s\n", - kobject_name(&dev->kobj), error, - error == -EAGAIN ? " (please convert to suspend_late)" : ""); - put_device(dev); - } - mutex_unlock(&dpm_list_mtx); - if (error) - dpm_resume(); - - mutex_unlock(&dpm_mtx); - return error; -} - -EXPORT_SYMBOL_GPL(device_suspend); - -/** - * device_power_down - Shut down special devices. - * @state: Power state to enter. - * - * Walk the dpm_off_irq list, calling ->power_down() for each device that - * couldn't power down the device with interrupts enabled. When we're - * done, power down system devices. - */ - -int device_power_down(pm_message_t state) -{ - int error = 0; - struct device * dev; - - while (!list_empty(&dpm_off)) { - struct list_head * entry = dpm_off.prev; - - dev = to_device(entry); - error = suspend_device_late(dev, state); - if (error) - goto Error; - list_move(&dev->power.entry, &dpm_off_irq); - } - - error = sysdev_suspend(state); - Done: - return error; - Error: - printk(KERN_ERR "Could not power down device %s: " - "error %d\n", kobject_name(&dev->kobj), error); - dpm_power_up(); - goto Done; -} - -EXPORT_SYMBOL_GPL(device_power_down); - -void __suspend_report_result(const char *function, void *fn, int ret) -{ - if (ret) { - printk(KERN_ERR "%s(): ", function); - print_fn_descriptor_symbol("%s() returns ", (unsigned long)fn); - printk("%d\n", ret); - } -} -EXPORT_SYMBOL_GPL(__suspend_report_result); -- cgit v1.2.3-58-ga151