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2012-06-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull a crypto fix from Herbert Xu: "This push fixes another bug in the atmel-rng that made it produce completely useless output." * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: hwrng: atmel-rng - fix data valid check
2012-06-12hwrng: atmel-rng - fix data valid checkPeter Korsgaard
Brown paper bag: Data valid is LSB of the ISR (status register), and NOT of ODATA (current random data word)! With this, rngtest is a lot happier. Before: rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 3 rngtest: FIPS 140-2 failures: 997 rngtest: FIPS 140-2(2001-10-10) Monobit: 604 rngtest: FIPS 140-2(2001-10-10) Poker: 996 rngtest: FIPS 140-2(2001-10-10) Runs: 36 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 117 rngtest: input channel speed: (min=622.371; avg=23682.481; max=28224.350)Kibitss rngtest: FIPS tests speed: (min=12.361; avg=12.718; max=12.861)Mibits/s rngtest: Program run time: 2331696 microsecondsx After: rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 999 rngtest: FIPS 140-2 failures: 1 rngtest: FIPS 140-2(2001-10-10) Monobit: 0 rngtest: FIPS 140-2(2001-10-10) Poker: 0 rngtest: FIPS 140-2(2001-10-10) Runs: 1 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 0 rngtest: input channel speed: (min=777.363; avg=43588.270; max=47870.711)Kibitss rngtest: FIPS tests speed: (min=11.943; avg=12.716; max=12.844)Mibits/s rngtest: Program run time: 1955282 microseconds Cc: stable@vger.kernel.org Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Reported-by: George Pontis <GPontis@z9.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto fixes from Herbert Xu: "This push fixes an unaligned fault on x86-32 with aesni-intel and an RNG failure with atmel-rng (repeated bits)." * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: aesni-intel - fix unaligned cbc decrypt for x86-32 hwrng: atmel-rng - fix race condition leading to repeated bits
2012-06-06char/agp: add another Ironlake host bridgeEugeni Dodonov
This seems to come on Gigabyte H55M-S2V and was discovered through the https://bugs.freedesktop.org/show_bug.cgi?id=50381 debugging. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50381 Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-31hwrng: atmel-rng - fix race condition leading to repeated bitsPeter Korsgaard
Data valid gets cleared by reading the ISR (status register) and NOT from reading ODATA (data register). A new data word can become available between checking ISR and reading ODATA, causing us to reuse the same data word next time atmel_trng_read() gets called, if that happens before the following data word is ready. With this fixed, rngtest no longer complains of 'Continous run' errors. Before: rngtest -c 1000 < /dev/hwrng rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 923 rngtest: FIPS 140-2 failures: 77 rngtest: FIPS 140-2(2001-10-10) Monobit: 0 rngtest: FIPS 140-2(2001-10-10) Poker: 0 rngtest: FIPS 140-2(2001-10-10) Runs: 1 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 76 rngtest: input channel speed: (min=721.402; avg=46003.510; max=49321.338)Kibitss rngtest: FIPS tests speed: (min=11.442; avg=12.714; max=12.801)Mibits/s rngtest: Program run time: 1931860 microseconds After: rngtest -c 1000 < /dev/hwrng rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 1000 rngtest: FIPS 140-2 failures: 0 rngtest: FIPS 140-2(2001-10-10) Monobit: 0 rngtest: FIPS 140-2(2001-10-10) Poker: 0 rngtest: FIPS 140-2(2001-10-10) Runs: 0 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 0 rngtest: input channel speed: (min=777.518; avg=36988.482; max=43115.342)Kibitss rngtest: FIPS tests speed: (min=11.951; avg=12.715; max=12.887)Mibits/s rngtest: Program run time: 2035543 microseconds Cc: stable@vger.kernel.org Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Reported-by: George Pontis <GPontis@z9.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-05-24Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull main drm updates from Dave Airlie: "This is the main merge window request for the drm. It's big, but jam packed will lots of features and of course 0 regressions. (okay maybe there'll be one). Highlights: - new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus (qemu only). These drivers use the generic modesetting drivers. - initial prime/dma-buf support for i915, nouveau, radeon, udl and exynos - switcheroo audio support: so GPUs with HDMI can turn off the sound driver without crashing stuff. - There are some patches drifting outside drivers/gpu into x86 and EFI for better handling of multiple video adapters in Apple Macs, they've got correct acks except one trivial fixup. - Core: edid parser has better DMT and reduced blanking support, crtc properties, plane properties, - Drivers: exynos: add 2D core accel support, prime support, hdmi features intel: more Haswell support, initial Valleyview support, more hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of cleanups and fixes radeon: more HDMI audio support, improved GPU lockup recovery support, remove nested mutexes, less memory copying on PCIE, fix bus master enable race (kexec), improved fence handling gma500: cleanups, 1080p support, acpi fixes nouveau: better nva3 memory reclocking, kepler accel (needs external firmware rip), async buffer moves on nv84+ hw. I've some more dma-buf patches that rely on the dma-buf merge for vmap stuff, and I've a few fixes building up, but I'd decided I'd better get rid of the main pull sooner rather than later, so the audio guys are also unblocked." Fix up trivial conflict due to some duplicated changes in drivers/gpu/drm/i915/intel_ringbuffer.c * 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits) drm/nouveau/nvd9: Fix GPIO initialisation sequence. drm/nouveau: Unregister switcheroo client on exit drm/nouveau: Check dsm on switcheroo unregister drm/nouveau: fix a minor annoyance in an output string drm/nouveau: turn a BUG into a WARN drm/nv50: decode PGRAPH DATA_ERROR = 0x24 drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks drm/nvd9/copy: initialise copy engine, seems to work like nvc0 drm/nvc0/ttm: use copy engines for async buffer moves drm/nva3/ttm: use copy engine for async buffer moves drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method drm/nv84/ttm: use crypto engine for async buffer copies drm/nouveau/ttm: untangle code to support accelerated buffer moves drm/nouveau/fbcon: use fence for sync, rather than notifier drm/nv98/crypt: non-stub implementation of the engine hooks drm/nouveau/fifo: turn all fifo modules into engine modules drm/nv50/graph: remove ability to do interrupt-driven context switching drm/nv50: remove manual context unload on context destruction drm/nv50: remove execution engine context saves on suspend drm/nv50/fifo: use hardware channel kickoff functionality ...
2012-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto updates from Herbert Xu: - New cipher/hash driver for ARM ux500. - Code clean-up for aesni-intel. - Misc fixes. Fixed up conflicts in arch/arm/mach-ux500/devices-common.h, where quite frankly some of it made no sense at all (the pull brought in a declaration for the dbx500_add_platform_device_noirq() function, which neither exists nor is used anywhere). Also some trivial add-add context conflicts in the Kconfig file in drivers/{char/hw_random,crypto}/ * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: aesni-intel - move more common code to ablk_init_common crypto: aesni-intel - use crypto_[un]register_algs crypto: ux500 - Cleanup hardware identification crypto: ux500 - Update DMA handling for 3.4 mach-ux500: crypto - core support for CRYP/HASH module. crypto: ux500 - Add driver for HASH hardware crypto: ux500 - Add driver for CRYP hardware hwrng: Kconfig - modify default state for atmel-rng driver hwrng: omap - use devm_request_and_ioremap crypto: crypto4xx - move up err_request_irq label crypto, xor: Sanitize checksumming function selection output crypto: caam - add backward compatible string sec4.0
2012-05-23Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc updates from Benjamin Herrenschmidt: "Here are the powerpc goodies for 3.5. Main highlights are: - Support for the NX crypto engine in Power7+ - A bunch of Anton goodness, including some micro optimization of our syscall entry on Power7 - I converted a pile of our thermal control drivers to the new i2c APIs (essentially turning the old therm_pm72 into a proper set of windfarm drivers). That's one more step toward removing the deprecated i2c APIs, there's still a few drivers to fix, but we are getting close - kexec/kdump support for 47x embedded cores The big missing thing here is no updates from Freescale. Not sure what's up here, but with Kumar not working for them anymore things are a bit in a state of flux in that area." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits) powerpc: Fix irq distribution Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags" powerpc: Fixing a cputhread code documentation powerpc/crypto: Enable the PFO-based encryption device powerpc/crypto: Build files for the nx device driver powerpc/crypto: debugfs routines and docs for the nx device driver powerpc/crypto: SHA512 hash routines for nx encryption powerpc/crypto: SHA256 hash routines for nx encryption powerpc/crypto: AES-XCBC mode routines for nx encryption powerpc/crypto: AES-GCM mode routines for nx encryption powerpc/crypto: AES-ECB mode routines for nx encryption powerpc/crypto: AES-CTR mode routines for nx encryption powerpc/crypto: AES-CCM mode routines for nx encryption powerpc/crypto: AES-CBC mode routines for nx encryption powerpc/crypto: nx driver code supporting nx encryption powerpc/pseries: Enable the PFO-based RNG accelerator powerpc/pseries/hwrng: PFO-based hwrng driver powerpc/pseries: Add PFO support to the VIO bus powerpc/pseries: Add pseries update notifier for OFDT prop changes powerpc/pseries: Add new hvcall constants to support PFO ...
2012-05-22Merge tag 'staging-3.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging tree changes from Greg Kroah-Hartman: "Here is the big staging tree pull request for the 3.5-rc1 merge window. Loads of changes here, and we just narrowly added more lines than we added: 622 files changed, 28356 insertions(+), 26059 deletions(-) But, good news is that there is a number of subsystems that moved out of the staging tree, to their respective "real" portions of the kernel. Code that moved out was: - iio core code - mei driver - vme core and bridge drivers There was one broken network driver that moved into staging as a step before it is removed from the tree (pc300), and there was a few new drivers added to the tree: - new iio drivers - gdm72xx wimax USB driver - ipack subsystem and 2 drivers All of the movements around have acks from the various subsystem maintainers, and all of this has been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up various trivial conflicts, along with a non-trivial one found in -next and pointed out by Olof Johanssen: a clean - but incorrect - merge of the arch/arm/boot/dts/at91sam9g20.dtsi file. Fix up manually as per Stephen Rothwell. * tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits) Staging: bcm: Remove two unused variables from Adapter.h Staging: bcm: Removes the volatile type definition from Adapter.h Staging: bcm: Rename all "INT" to "int" in Adapter.h Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h Staging: bcm: Correctly format all comments in Adapter.h Staging: bcm: Fix all whitespace issues in Adapter.h Staging: bcm: Properly format braces in Adapter.h Staging: ipack/bridges/tpci200: remove unneeded casts Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant Staging: ipack: remove board_name and bus_name fields from struct ipack_device Staging: ipack: improve the register of a bus and a device in the bus. staging: comedi: cleanup all the comedi_driver 'detach' functions staging: comedi: remove all 'default N' in Kconfig staging: line6/config.h: Delete unused header staging: gdm72xx depends on NET staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices staging: drm/omap: initial dmabuf/prime import support staging: drm/omap: dmabuf/prime mmap support pstore/ram: Add ECC support pstore/ram: Switch to persistent_ram routines ...
2012-05-22Merge tag 'driver-core-3.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the driver core, and other driver subsystems, pull request for the 3.5-rc1 merge window. Outside of a few minor driver core changes, we ended up with the following different subsystem and core changes as well, due to interdependancies on the driver core: - hyperv driver updates - drivers/memory being created and some drivers moved into it - extcon driver subsystem created out of the old Android staging switch driver code - dynamic debug updates - printk rework, and /dev/kmsg changes All of this has been tested in the linux-next releases for a few weeks with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed that a patch to the deleted drivers/misc/max8997-muic.c driver needs to be applied to this one. * tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits) uio_pdrv_genirq: get irq through platform resource if not set otherwise memory: tegra{20,30}-mc: Remove empty *_remove() printk() - isolate KERN_CONT users from ordinary complete lines sysfs: get rid of some lockdep false positives Drivers: hv: util: Properly handle version negotiations. Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp() memory: tegra{20,30}-mc: Use dev_err_ratelimited() driver core: Add dev_*_ratelimited() family Driver Core: don't oops with unregistered driver in driver_find_device() printk() - restore prefix/timestamp printing for multi-newline strings printk: add stub for prepend_timestamp() ARM: tegra30: Make MC optional in Kconfig ARM: tegra20: Make MC optional in Kconfig ARM: tegra30: MC: Remove unnecessary BUG*() ARM: tegra20: MC: Remove unnecessary BUG*() printk: correctly align __log_buf ARM: tegra30: Add Tegra Memory Controller(MC) driver ARM: tegra20: Add Tegra Memory Controller(MC) driver printk() - restore timestamp printing at console output printk() - do not merge continuation lines of different threads ...
2012-05-22Merge tag 'char-misc-3.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull Char/Misc patches from Greg Kroah-Hartman: "Here are a few various char/misc tree patches for the 3.5-rc1 merge window. Nothing major here at all, just different driver updates and some parport dead code removal. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'char-misc-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: parport: remove unused dead code from lowlevel drivers xilinx_hwicap: reset XHI_MAX_RETRIES xilinx_hwicap: add support for virtex6 FPGAs Support M95040 SPI EEPROM misc: add support for bmp18x chips to the bmp085 driver misc: bmp085: add device tree properties misc: clean up bmp085 driver misc: do not mark exported functions __devexit misc: add missing __devexit_p() annotations pch_phub: delete duplicate definitions misc: Fix irq leak in max8997_muic_probe error path
2012-05-22Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull first batch of arm-soc cleanups from Olof Johansson: "These cleanups are basically all over the place. The idea is to collect changes with minimal impact but large number of changes so we can avoid them from distracting in the diffstat in the other series. A significant number of lines get removed here, in particular because the ixp2000 and ixp23xx platforms get removed. These have never been extremely popular and have fallen into disuse over time with no active maintainer taking care of them. The u5500 soc never made it into a product, so we are removing it from the ux500 platform. Many good cleanups also went into the at91 and omap platforms, as has been the case for a number of releases." Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx} * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits) ARM: clps711x: Cleanup IRQ handling ARM clps711x: Removed unused header mach/time.h ARM: clps711x: Added note about support EP731x CPU to Kconfig ARM: clps711x: Added missing register definitions ARM: clps711x: Used own subarch directory for store header file Dove: Fix Section mismatch warnings ARM: orion5x: ts78xx debugging changes ARM: orion5x: remove PM dependency from ts78xx ARM: orion5x: ts78xx fix NAND resource off by one ARM: orion5x: ts78xx whitespace cleanups Orion5x: Fix Section mismatch warnings Orion5x: Fix warning: struct pci_dev declared inside paramter list ARM: clps711x: Combine header files into one for clps711x-targets ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c ARM: S3C24XX: Use common macro to define resources on mach-osiris.c ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c ARM: S5PV210: Use common macro to define resources on dev-audio.c ARM: S5PC100: Use common macro to define resources on dev-audio.c ARM: S5P64X0: Use common macro to define resources on dev-audio.c ...
2012-05-19drm/i915: hook Haswell devices in placeEugeni Dodonov
This patch enables i915 driver to handle Haswell devices. It should go in last, when things are working stable enough. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-17virtio: console: tell host of open ports after resume from s3/s4Amit Shah
If a port was open before going into one of the sleep states, the port can continue normal operation after restore. However, the host has to be told that the guest side of the connection is open to restore pre-suspend state. This wasn't noticed so far due to a bug in qemu that was fixed recently (which marked the guest-side connection as always open). CC: stable@vger.kernel.org # Only for 3.3 Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-05-16ramoops: Move to fs/pstore/ram.cAnton Vorontsov
Since ramoops was converted to pstore, it has nothing to do with character devices nowadays. Instead, today it is just a RAM backend for pstore. The patch just moves things around. There are a few changes were needed because of the move: 1. Kconfig and Makefiles fixups, of course. 2. In pstore/ram.c we have to play a bit with MODULE_PARAM_PREFIX, this is needed to keep user experience the same as with ramoops driver (i.e. so that ramoops.foo kernel command line arguments would still work). Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Marco Stornelli <marco.stornelli@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-16ramoops: fix printk format warningsRandy Dunlap
Fix printk format warnings for phys_addr_t type variables: drivers/char/ramoops.c:246:3: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'phys_addr_t' drivers/char/ramoops.c:273:2: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'phys_addr_t' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-16ramoops: use pstore interfaceKees Cook
Instead of using /dev/mem directly and forcing userspace to know (or extract) where the platform has defined persistent memory, how many slots it has, the sizes, etc, use the common pstore infrastructure to handle Oops gathering and extraction. This presents a much easier to use filesystem-based view to the memory region. This also means that any other tools that are written to understand pstore will automatically be able to process ramoops too. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Marco Stornelli <marco.stornelli@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linuxHerbert Xu
Merge mainline to add prerequisite for ARM ux500 crypto support.
2012-05-14powerpc/pseries/hwrng: PFO-based hwrng driverKent Yoder
Adds support for the Platform Facilities Option (PFO)-based hardware random number generator for POWER hardware. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-09printk - fix compilation for CONFIG_PRINTK=nKay Sievers
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Kay Sievers <kay@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-07kmsg: export printk records to the /dev/kmsg interfaceKay Sievers
Support for multiple concurrent readers of /dev/kmsg, with read(), seek(), poll() support. Output of message sequence numbers, to allow userspace log consumers to reliably reconnect and reconstruct their state at any given time. After open("/dev/kmsg"), read() always returns *all* buffered records. If only future messages should be read, SEEK_END can be used. In case records get overwritten while /dev/kmsg is held open, or records get faster overwritten than they are read, the next read() will return -EPIPE and the current reading position gets updated to the next available record. The passed sequence numbers allow the log consumer to calculate the amount of lost messages. [root@mop ~]# cat /dev/kmsg 5,0,0;Linux version 3.4.0-rc1+ (kay@mop) (gcc version 4.7.0 20120315 ... 6,159,423091;ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) 7,160,424069;pci_root PNP0A03:00: host bridge window [io 0x0000-0x0cf7] (ignored) SUBSYSTEM=acpi DEVICE=+acpi:PNP0A03:00 6,339,5140900;NET: Registered protocol family 10 30,340,5690716;udevd[80]: starting version 181 6,341,6081421;FDC 0 is a S82078B 6,345,6154686;microcode: CPU0 sig=0x623, pf=0x0, revision=0x0 7,346,6156968;sr 1:0:0:0: Attached scsi CD-ROM sr0 SUBSYSTEM=scsi DEVICE=+scsi:1:0:0:0 6,347,6289375;microcode: CPU1 sig=0x623, pf=0x0, revision=0x0 Cc: Karel Zak <kzak@redhat.com> Tested-by: William Douglas <william.douglas@intel.com> Signed-off-by: Kay Sievers <kay@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-07printk: convert byte-buffer to variable-length record bufferKay Sievers
- Record-based stream instead of the traditional byte stream buffer. All records carry a 64 bit timestamp, the syslog facility and priority in the record header. - Records consume almost the same amount, sometimes less memory than the traditional byte stream buffer (if printk_time is enabled). The record header is 16 bytes long, plus some padding bytes at the end if needed. The byte-stream buffer needed 3 chars for the syslog prefix, 15 char for the timestamp and a newline. - Buffer management is based on message sequence numbers. When records need to be discarded, the reading heads move on to the next full record. Unlike the byte-stream buffer, no old logged lines get truncated or partly overwritten by new ones. Sequence numbers also allow consumers of the log stream to get notified if any message in the stream they are about to read gets discarded during the time of reading. - Better buffered IO support for KERN_CONT continuation lines, when printk() is called multiple times for a single line. The use of KERN_CONT is now mandatory to use continuation; a few places in the kernel need trivial fixes here. The buffering could possibly be extended to per-cpu variables to allow better thread-safety for multiple printk() invocations for a single line. - Full-featured syslog facility value support. Different facilities can tag their messages. All userspace-injected messages enforce a facility value > 0 now, to be able to reliably distinguish them from the kernel-generated messages. Independent subsystems like a baseband processor running its own firmware, or a kernel-related userspace process can use their own unique facility values. Multiple independent log streams can co-exist that way in the same buffer. All share the same global sequence number counter to ensure proper ordering (and interleaving) and to allow the consumers of the log to reliably correlate the events from different facilities. Tested-by: William Douglas <william.douglas@intel.com> Signed-off-by: Kay Sievers <kay@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-02Merge tag 'drm-intel-next-2012-04-23' of ↵Dave Airlie
git://people.freedesktop.org/~danvet/drm-intel into drm-core-next Daniel Vetter writes: A new drm-intel-next pull. Highlights: - More gmbus patches from Daniel Kurtz, I think gmbus is now ready, all known issues fixed. - Fencing cleanup and pipelined fencing removal from Chris. - rc6 residency interface from Ben, useful for powertop. - Cleanups and code reorg around the ringbuffer code (Ben&me). - Use hw semaphores in the pageflip code from Ben. - More vlv stuff from Jesse, unfortunately his vlv cpu is doa, so less merged than I've hoped for - we still have the unused function warning :( - More hsw patches from Eugeni, again, not yet enabled fully. - intel_pm.c refactoring from Eugeni. - Ironlake sprite support from Chris. - And various smaller improvements/fixes all over the place. Note that this pull request also contains a backmerge of -rc3 to sort out a few things in -next. I've also had to frob the shortlog a bit to exclude anything that -rc3 brings in with this pull. Regression wise we have a few strange bugs going on, but for all of them closer inspection revealed that they've been pre-existing, just now slightly more likely to be hit. And for most of them we have a patch already. Otherwise QA has not reported any regressions, and I'm also not aware of anything bad happening in 3.4. * tag 'drm-intel-next-2012-04-23' of git://people.freedesktop.org/~danvet/drm-intel: (420 commits) drm/i915: rc6 residency (fix the fix) drm/i915/tv: fix open-coded ARRAY_SIZE. drm/i915: invalidate render cache on gen2 drm/i915: Silence the change of LVDS sync polarity drm/i915: add generic power management initialization drm/i915: move clock gating functionality into intel_pm module drm/i915: move emon functionality into intel_pm module drm/i915: move drps, rps and rc6-related functions to intel_pm drm/i915: fix line breaks in intel_pm drm/i915: move watermarks settings into intel_pm module drm/i915: move fbc-related functionality into intel_pm module drm/i915: Refactor get_fence() to use the common fence writing routine drm/i915: Refactor fence clearing to use the common fence writing routine drm/i915: Refactor put_fence() to use the common fence writing routine drm/i915: Prepare to consolidate fence writing drm/i915: Remove the unsightly "optimisation" from flush_fence() drm/i915: Simplify fence finding drm/i915: Discard the unused obj->last_fenced_ring drm/i915: Remove unused ring->setup_seqno drm/i915: Remove fence pipelining ...
2012-04-30hwrng: Kconfig - modify default state for atmel-rng driverNicolas Ferre
In order to prevent building the Atmel hw_random driver for each and every configuration, add a "default" Kconfig state in relation with CONFIG_ARCH_AT91. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-27hwrng: omap - use devm_request_and_ioremapJulia Lawall
Using devm_request_and_ioremap is more concise. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-19xilinx_hwicap: reset XHI_MAX_RETRIESDaniel Borkmann
Reset the XHI_MAX_RETRIES value. This allows the hardware enough time to write configuration frames during partial reconfiguration. In case of 10 the driver returns an error, although it should just have polled the register longer. Tested on an ML605 board. The patch is against the latest linus-tree. Signed-off-by: Ariane Keller <ariane.keller@tik.ee.ethz.ch> Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-19xilinx_hwicap: add support for virtex6 FPGAsDaniel Borkmann
This patch adds support for the virtex6 FPGA to the xilinx_hwicap driver. Tested on a Xilinx ML605 board. The patch is against the latest linus-tree. Signed-off-by: Ariane Keller <ariane.keller@tik.ee.ethz.ch> Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-17Merge tag 'v3.4-rc3' into drm-intel-next-queuedDaniel Vetter
Backmerge Linux 3.4-rc3 into drm-intel-next to resolve a few things that conflict/depend upon patches in -rc3: - Second part of the Sandybridge workaround series - it changes some of the same registers. - Preparation for Chris Wilson's fencing cleanup - we need the fix from -rc3 merged before we can move around all that code. - Resolve the gmbus conflict - gmbus has been disabled in 3.4 again, but should be enabled on all generations in 3.5. Conflicts: drivers/gpu/drm/i915/intel_i2c.c Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-16hwrng: Kconfig: remove dependency for atmel-rng driverNicolas Ferre
This will allow to select this driver for newer SoCs. Make sure to keep dependency on HAVE_CLK to avoid breaking other machines. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-12Merge tag 'tty-3.4-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty and serial fixes from Greg KH: "Here are some tty and serial fixes for 3.4-rc2. Most important here is the pl011 fix, which has been reported by about 100 different people, which means more people use it than I expected :) There are also some 8250 driver reverts due to some problems reported by them. And other minor fixes as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: pch_uart: Add Kontron COMe-mTT10 uart clock quirk pch_uart: Fix MSI setting issue serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller" Revert "serial/8250_pci: init-quirk msi support for kt serial controller" tty/serial/omap: console can only be built-in serial: samsung: fix omission initialize ulcon in reset port fn() printk(): add KERN_CONT where needed in hpet and vt code tty/serial: atmel_serial: fix RS485 half-duplex problem tty: serial: altera_uart: Check for NULL platform_data in probe. isdn/gigaset: use gig_dbg() for debugging output omap-serial: Fix the error handling in the omap_serial probe serial: PL011: move interrupt clearing
2012-04-12drivers/char/random.c: fix boot id uniqueness raceMathieu Desnoyers
/proc/sys/kernel/random/boot_id can be read concurrently by userspace processes. If two (or more) user-space processes concurrently read boot_id when sysctl_bootid is not yet assigned, a race can occur making boot_id differ between the reads. Because the whole point of the boot id is to be unique across a kernel execution, fix this by protecting this operation with a spinlock. Given that this operation is not frequently used, hitting the spinlock on each call should not be an issue. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Greg Kroah-Hartman <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12agp: Use u32 __iomem annotation to silence sparse warning.Santosh Nayak
Replace "void *" by "u32 __iomem *" to silence sparse warning. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-12agp: Remove 'break' after 'return' statement.Santosh Nayak
'break' is unnecessary after 'return' statement. Remove all such 'break' as clean up. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-12Merge branch 'drm-intel-next' of ↵Dave Airlie
git://people.freedesktop.org/~danvet/drm-intel into drm-core-next Daniel Vetter wrote First pull request for 3.5-next, slightly large than usual because new things kept coming in since the last pull for 3.4. Highlights: - first batch of hw enablement for vlv (Jesse et al) and hsw (Eugeni). pci ids are not yet added, and there's still quite a few patches to merge (mostly modesetting). To make QA easier I've decided to merge this stuff in pieces. - loads of cleanups and prep patches spurred by the above. Especially vlv is a real frankenstein chip, but also hsw is stretching our driver's code design. Expect more to come in this area for 3.5. - more gmbus fixes, cleanups and improvements by Daniel Kurtz. Again, there are more patches needed (and some already queued up), but I wanted to split this a bit for better testing. - pwrite/pread rework and retuning. This series has been in the works for a few months already and a lot of i-g-t tests have been created for it. Now it's finally ready to be merged. Note that one patch in this series touches include/pagemap.h, that patch is acked-by akpm. - reduce mappable pressure and relocation throughput improvements from Chris. - mmap offset exhaustion mitigation by Chris Wilson. - a start at figuring out which codepaths in our messy dri1/ums+gem/kms driver we actually need to support by bailing out of unsupported case. The driver now refuses to load without kms on gen6+ and disallows a few ioctls that userspace never used in certain cases. More of this will definitely come. - More decoupling of global gtt and ppgtt. - Improved dual-link lvds detection by Takashi Iwai. - Shut up the compiler + plus fix the fallout (Ben) - Inverted panel brightness handling (mostly Acer manages to break things in this way). - Small fixlets and adjustements and some minor things to help debugging. Regression-wise QA reported quite a few issues on ivb, but all of them turned out to be hw stability issues which are already fixed in drm-intel-fixes (QA runs the nightly regression tests on -next alone, without -fixes automatically merged in). There's still one issue open on snb, it looks like occlusion query writes are not quite as cache coherent as we've expected. With some of the pwrite adjustements we can now reliably hit this. Kernel workaround for it is in the works." * 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (101 commits) drm/i915: VCS is not the last ring drm/i915: Add a dual link lvds quirk for MacBook Pro 8,2 drm/i915: make quirks more verbose drm/i915: dump the DMA fetch addr register on pre-gen6 drm/i915/sdvo: Include YRPB as an additional TV output type drm/i915: disallow gem init ioctl on ilk drm/i915: refuse to load on gen6+ without kms drm/i915: extract gt interrupt handler drm/i915: use render gen to switch ring irq functions drm/i915: rip out old HWSTAM missed irq WA for vlv drm/i915: open code gen6+ ring irqs drm/i915: ring irq cleanups drm/i915: add SFUSE_STRAP registers for digital port detection drm/i915: add WM_LINETIME registers drm/i915: add WRPLL clocks drm/i915: add LCPLL control registers drm/i915: add SSC offsets for SBI access drm/i915: add port clock selection support for HSW drm/i915: add S PLL control drm/i915: add PIXCLK_GATE register ... Conflicts: drivers/char/agp/intel-agp.h drivers/char/agp/intel-gtt.c drivers/gpu/drm/i915/i915_debugfs.c
2012-04-09printk(): add KERN_CONT where needed in hpet and vt codeKay Sievers
A prototype for kmsg records instead of a byte-stream buffer revealed a couple of missing printk(KERN_CONT ...) uses. Subsequent calls produce one record per printk() call, while all should have ended up in a single record. Instead of: ACPI: (supports S0 S5) ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) hpet0: at MMIO 0xfed00000, IRQs 2 , 8 , 0 It prints: ACPI: (supports S0 S5 ) ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11 ) hpet0: at MMIO 0xfed00000, IRQs 2 , 8 , 0 Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Kay Sievers <kay@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-09drm/i915: add Haswell devices and their PCI IDsEugeni Dodonov
This adds product definitions for desktop, mobile and server boards. v2: split into a separate patch, add .has_pch_split feature. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-06Merge branch 'stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull arch/tile bug fixes from Chris Metcalf: "This includes Paul Gortmaker's change to fix the <asm/system.h> disintegration issues on tile, a fix to unbreak the tilepro ethernet driver, and a backlog of bugfix-only changes from internal Tilera development over the last few months. They have all been to LKML and on linux-next for the last few days. The EDAC change to MAINTAINERS is an oddity but discussion on the linux-edac list suggested I ask you to pull that change through my tree since they don't have a tree to pull edac changes from at the moment." * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (39 commits) drivers/net/ethernet/tile: fix netdev_alloc_skb() bombing MAINTAINERS: update EDAC information tilepro ethernet driver: fix a few minor issues tile-srom.c driver: minor code cleanup edac: say "TILEGx" not "TILEPro" for the tilegx edac driver arch/tile: avoid accidentally unmasking NMI-type interrupt accidentally arch/tile: remove bogus performance optimization arch/tile: return SIGBUS for addresses that are unaligned AND invalid arch/tile: fix finv_buffer_remote() for tilegx arch/tile: use atomic exchange in arch_write_unlock() arch/tile: stop mentioning the "kvm" subdirectory arch/tile: export the page_home() function. arch/tile: fix pointer cast in cacheflush.c arch/tile: fix single-stepping over swint1 instructions on tilegx arch/tile: implement panic_smp_self_stop() arch/tile: add "nop" after "nap" to help GX idle power draw arch/tile: use proper memparse() for "maxmem" options arch/tile: fix up locking in pgtable.c slightly arch/tile: don't leak kernel memory when we unload modules arch/tile: fix bug in delay_backoff() ...
2012-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm Pull an APM fix from Jiri Kosina: "One deadlock/race fix from Niel that got introduced when we were moving away from freezer_*_count() to wait_event_freezable()." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm: APM: fix deadlock in APM_IOC_SUSPEND ioctl
2012-04-05Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge batch of fixes from Andrew Morton: "The simple_open() cleanup was held back while I wanted for laggards to merge things. I still need to send a few checkpoint/restore patches. I've been wobbly about merging them because I'm wobbly about the overall prospects for success of the project. But after speaking with Pavel at the LSF conference, it sounds like they're further toward completion than I feared - apparently davem is at the "has stopped complaining" stage regarding the net changes. So I need to go back and re-review those patchs and their (lengthy) discussion." * emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches) memcg swap: use mem_cgroup_uncharge_swap fix backlight: add driver for DA9052/53 PMIC v1 C6X: use set_current_blocked() and block_sigmask() MAINTAINERS: add entry for sparse checker MAINTAINERS: fix REMOTEPROC F: typo alpha: use set_current_blocked() and block_sigmask() simple_open: automatically convert to simple_open() scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() libfs: add simple_open() hugetlbfs: remove unregister_filesystem() when initializing module drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback fs/xattr.c:setxattr(): improve handling of allocation failures fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed fs/xattr.c: suppress page allocation failure warnings from sys_listxattr() sysrq: use SEND_SIG_FORCED instead of force_sig() proc: fix mount -t proc -o AAA
2012-04-05simple_open: automatically convert to simple_open()Stephen Boyd
Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: <smpl> @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; </smpl> [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-03APM: fix deadlock in APM_IOC_SUSPEND ioctlNeilBrown
I found the Xorg server on my ARM device stuck in the 'msleep()' loop in apm_ioctl. I suspect it had attempted suspend immediately after resuming and lost a race. During that msleep(10);, a new suspend cycle must have started and changed ->suspend_state to SUSPEND_PENDING, so it was never seen to be SUSPEND_DONE and the loop could never exited. It would have moved on to SUSPEND_ACKTO but never been able to reach SUSPEND_DONE. So change the loop to only run while SUSPEND_ACKED rather than until SUSPEND_DONE. This is much safer. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-02tile-srom.c driver: minor code cleanupChris Metcalf
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-04-02drm/i915: disable ppgtt on snb when dmar is enabledDaniel Vetter
Totally unexpected that this regressed. Luckily it sounds like we just need to have dmar disable on the igfx, not the entire system. At least that's what a few days of testing between Tony Vroon and me indicates. Reported-by: Tony Vroon <tony@linx.net> Cc: Tony Vroon <tony@linx.net> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43024 Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-02drm/i915: add Ivy Bridge GT2 Server entriesEugeni Dodonov
This adds PCI ID for IVB GT2 server variant which we were missing. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> [danvet: fix up conflict because the patch has been diffed against next. tsk.] Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-03-29Merge branch 'x86-x32-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x32 support for x86-64 from Ingo Molnar: "This tree introduces the X32 binary format and execution mode for x86: 32-bit data space binaries using 64-bit instructions and 64-bit kernel syscalls. This allows applications whose working set fits into a 32 bits address space to make use of 64-bit instructions while using a 32-bit address space with shorter pointers, more compressed data structures, etc." Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c} * 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits) x32: Fix alignment fail in struct compat_siginfo x32: Fix stupid ia32/x32 inversion in the siginfo format x32: Add ptrace for x32 x32: Switch to a 64-bit clock_t x32: Provide separate is_ia32_task() and is_x32_task() predicates x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls x86/x32: Fix the binutils auto-detect x32: Warn and disable rather than error if binutils too old x32: Only clear TIF_X32 flag once x32: Make sure TS_COMPAT is cleared for x32 tasks fs: Remove missed ->fds_bits from cessation use of fd_set structs internally fs: Fix close_on_exec pointer in alloc_fdtable x32: Drop non-__vdso weak symbols from the x32 VDSO x32: Fix coding style violations in the x32 VDSO code x32: Add x32 VDSO support x32: Allow x32 to be configured x32: If configured, add x32 system calls to system call tables x32: Handle process creation x32: Signal-related system calls x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h> ...
2012-03-28Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge third batch of patches from Andrew Morton: - Some MM stragglers - core SMP library cleanups (on_each_cpu_mask) - Some IPI optimisations - kexec - kdump - IPMI - the radix-tree iterator work - various other misc bits. "That'll do for -rc1. I still have ~10 patches for 3.4, will send those along when they've baked a little more." * emailed from Andrew Morton <akpm@linux-foundation.org>: (35 commits) backlight: fix typo in tosa_lcd.c crc32: add help text for the algorithm select option mm: move hugepage test examples to tools/testing/selftests/vm mm: move slabinfo.c to tools/vm mm: move page-types.c from Documentation to tools/vm selftests/Makefile: make `run_tests' depend on `all' selftests: launch individual selftests from the main Makefile radix-tree: use iterators in find_get_pages* functions radix-tree: rewrite gang lookup using iterator radix-tree: introduce bit-optimized iterator fs/proc/namespaces.c: prevent crash when ns_entries[] is empty nbd: rename the nbd_device variable from lo to nbd pidns: add reboot_pid_ns() to handle the reboot syscall sysctl: use bitmap library functions ipmi: use locks on watchdog timeout set on reboot ipmi: simplify locking ipmi: fix message handling during panics ipmi: use a tasklet for handling received messages ipmi: increase KCS timeouts ipmi: decrease the IPMI message transaction time in interrupt mode ...
2012-03-28ipmi: use locks on watchdog timeout set on rebootCorey Minyard
The IPMI watchdog timer clears or extends the timer on reboot/shutdown. It was using the non-locking routine for setting the watchdog timer, but this was causing race conditions. Instead, use the locking version to avoid the races. It seems to work fine. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28ipmi: simplify lockingCorey Minyard
Now that the the IPMI driver is using a tasklet, we can simplify the locking in the driver and get rid of the message lock. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28ipmi: fix message handling during panicsCorey Minyard
The part of the IPMI driver that delivered panic information to the event log and extended the watchdog timeout during a panic was not properly handling the messages. It used static messages to avoid allocation, but wasn't properly waiting for these, or wasn't properly handling the refcounts. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28ipmi: use a tasklet for handling received messagesCorey Minyard
The IPMI driver would release a lock, deliver a message, then relock. This is obviously ugly, and this patch converts the message handler interface to use a tasklet to schedule work. This lets the receive handler be called from an interrupt handler with interrupts enabled. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>