diff options
| author | Ivan Orlov <ivan.orlov0322@gmail.com> | 2023-08-11 11:30:41 +0400 |
|---|---|---|
| committer | Xu Yilun <yilun.xu@intel.com> | 2023-08-11 23:03:37 +0800 |
| commit | 7bb2d2190d43264eea34d71de7627117db79f9c1 (patch) | |
| tree | 317a0d64af1a760bedf34764f6fc057ca32c9ffe /drivers | |
| parent | 8607d9c1bd57da0a2d5f8ab2ec32b6ef7d85e66a (diff) | |
fpga: bridge: make fpga_bridge_class a static const structure
Now that the driver core allows for struct class to be in read-only
memory, move the fpga_bridge_class structure to be declared at build
time placing it into read-only memory, instead of having to be
dynamically allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230811073043.52808-1-ivan.orlov0322@gmail.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/fpga/fpga-bridge.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c index 0b76c67c50e5..a024be2b84e2 100644 --- a/drivers/fpga/fpga-bridge.c +++ b/drivers/fpga/fpga-bridge.c @@ -14,7 +14,7 @@ #include <linux/spinlock.h> static DEFINE_IDA(fpga_bridge_ida); -static struct class *fpga_bridge_class; +static const struct class fpga_bridge_class; /* Lock for adding/removing bridges to linked lists*/ static DEFINE_SPINLOCK(bridge_list_lock); @@ -100,7 +100,7 @@ struct fpga_bridge *of_fpga_bridge_get(struct device_node *np, { struct device *dev; - dev = class_find_device_by_of_node(fpga_bridge_class, np); + dev = class_find_device_by_of_node(&fpga_bridge_class, np); if (!dev) return ERR_PTR(-ENODEV); @@ -127,7 +127,7 @@ struct fpga_bridge *fpga_bridge_get(struct device *dev, { struct device *bridge_dev; - bridge_dev = class_find_device(fpga_bridge_class, NULL, dev, + bridge_dev = class_find_device(&fpga_bridge_class, NULL, dev, fpga_bridge_dev_match); if (!bridge_dev) return ERR_PTR(-ENODEV); @@ -360,7 +360,7 @@ fpga_bridge_register(struct device *parent, const char *name, bridge->priv = priv; bridge->dev.groups = br_ops->groups; - bridge->dev.class = fpga_bridge_class; + bridge->dev.class = &fpga_bridge_class; bridge->dev.parent = parent; bridge->dev.of_node = parent->of_node; bridge->dev.id = id; @@ -416,21 +416,20 @@ static void fpga_bridge_dev_release(struct device *dev) kfree(bridge); } +static const struct class fpga_bridge_class = { + .name = "fpga_bridge", + .dev_groups = fpga_bridge_groups, + .dev_release = fpga_bridge_dev_release, +}; + static int __init fpga_bridge_dev_init(void) { - fpga_bridge_class = class_create("fpga_bridge"); - if (IS_ERR(fpga_bridge_class)) - return PTR_ERR(fpga_bridge_class); - - fpga_bridge_class->dev_groups = fpga_bridge_groups; - fpga_bridge_class->dev_release = fpga_bridge_dev_release; - - return 0; + return class_register(&fpga_bridge_class); } static void __exit fpga_bridge_dev_exit(void) { - class_destroy(fpga_bridge_class); + class_unregister(&fpga_bridge_class); ida_destroy(&fpga_bridge_ida); } |