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2008-08-16Move sysctl check into debugging section and don't make it default yAndi Kleen
I noticed that sysctl_check.o was the largest object file in a allnoconfig build in kernel/*. 36243 0 0 36243 8d93 kernel/sysctl_check.o This is because it was default y and && EMBEDDED. But I don't really see a need for a non kernel developer to have their sysctls checked all the time. So move the Kconfig into the kernel debugging section and also drop the default y and the EMBEDDED check. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-16Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits) [ARM] 5191/1: ARM: remove CVS keywords [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16 [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD [ARM] 5198/1: PalmTX: PCMCIA fixes [ARM] Fix a pile of broken watchdog drivers [ARM] update mach-types [ARM] 5196/1: fix inline asm constraints for preload [ARM] 5194/1: update .gitignore [ARM] add proc-macros.S include to proc-arm940 and proc-arm946 [ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags [ARM] 5193/1: Wire up missing syscalls [ARM] traps: don't call undef hook functions with spinlock held [ARM] 5183/2: Provide Poodle LoCoMo GPIO names [ARM] dma-mapping: provide sync_range APIs [ARM] dma-mapping: improve type-safeness of DMA translations [ARM] Kirkwood: instantiate the orion_spi driver in the platform code [ARM] prevent crashing when too much RAM installed [ARM] Kirkwood: Instantiate mv_xor driver [ARM] Orion: Instantiate mv_xor driver for 5182 ...
2008-08-16Fix header export of videodev2.h, ivtv.h, ivtvfb.hDavid Woodhouse
The exported copy of videodev2.h contains this line: #define #include <sys/time.h> This is because for some reason it defines __user for itself -- despite the fact that we remove all instances of __user when exporting headers. _All_ pointers in userspace are user pointers. Fix it by removing the unnecessary '#define __user' from the file. The new headers ivtv.h and ivtvfb.h would have the same problem... if whoever put them there had actually remembered to add them to the Kbuild file while he was at it. Fix those too, and export them as was presumably intended. Note that includes of <linux/compiler.h> are also stripped by the header export process, so those don't need to be conditional. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-16mm: VM_flags comment fixesHugh Dickins
Try to comment away a little of the confusion between mm's vm_area_struct vm_flags and vmalloc's vm_struct flags: based on an idea by Ulrich Drepper. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-16[ARM] 5191/1: ARM: remove CVS keywordsAdrian Bunk
This patch removes CVS keywords that weren't updated for a long time. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specifiedEric Miao
The newly introduced "lcd_conn" field for connected LCD panel type will cause the original code to generate the warnings of incorrect lccr*. This is unnecessary since well encoded LCD_* flags will not generate incorrect combinition of lccr* bits. Skip the check if "lcd_conn" is specified. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16Eric Miao
Another fix of inconsistent shift of the LCD_BIAS_ACTIVE_* and LCD_PCLK_EDGE_* is also included. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCDEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Tested-by: Alex Osborne <ato@meshy.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] 5198/1: PalmTX: PCMCIA fixesMarek Vašut
Fix GPIO handling in the PCMCIA driver. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] Fix a pile of broken watchdog driversAdrian Bunk
These patches from Adrian fix: - ixp4xx_wdt: 20d35f3e50ea7e573f9568b9fce4e98523aaee5d CC drivers/watchdog/ixp4xx_wdt.o ixp4xx_wdt.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__' ixp4xx_wdt.c: In function 'wdt_enable': ixp4xx_wdt.c:41: error: 'wdt_lock' undeclared (first use in this ixp4xx_wdt.c:41: error: (Each undeclared identifier is reported only ixp4xx_wdt.c:41: error: for each function it appears in.) ixp4xx_wdt.c: In function 'wdt_disable': ixp4xx_wdt.c:52: error: 'wdt_lock' undeclared (first use in this ixp4xx_wdt.c: In function 'ixp4xx_wdt_init': ixp4xx_wdt.c:186: error: 'wdt_lock' undeclared (first use in this make[3]: *** [drivers/watchdog/ixp4xx_wdt.o] Error 1 - at91rm9200_wdt: 2760600da2a13d5a2a335ba012d0f3ad5df4c098 CC drivers/watchdog/at91rm9200_wdt.o at91rm9200_wdt.c:188: error: 'at91_wdt_ioctl' undeclared here (not in a make[3]: *** [drivers/watchdog/at91rm9200_wdt.o] Error 1 - wdt285: d0e58eed05f9baf77c4f75e794ae245f6dae240a CC [M] drivers/watchdog/wdt285.o wdt285.c: In function 'footbridge_watchdog_init': wdt285.c:211: error: 'KERN_WARN' undeclared (first use in this function) wdt285.c:211: error: (Each undeclared identifier is reported only once wdt285.c:211: error: for each function it appears in.) wdt285.c:212: error: expected ')' before string constant make[3]: *** [drivers/watchdog/wdt285.o] Error 1 And this patch from rmk: - s3c2410_wdt: 41dc8b72e37c514f7332cbc3f3dd864910c2a1fa CC drivers/watchdog/s3c2410_wdt.o s3c2410_wdt.c: In function `s3c2410wdt_start': s3c2410_wdt.c:161: warning: `return' with a value, in function returning void Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] update mach-typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-16[ARM] 5196/1: fix inline asm constraints for preloadNicolas Pitre
With gcc 4.3 and later, a pointer that has already been dereferenced is assumed not to be null since it should have caused a segmentation fault otherwise, hence any subsequent test against NULL is optimized away. Current inline asm constraint used in the implementation of prefetch() makes gcc believe that the pointer is dereferenced even though the PLD instruction does not load any data and does not cause a segmentation fault on null pointers, which causes all sorts of interesting results when reaching the end of a linked lists for example. Let's use a better constraint to properly represent the actual usage of the pointer value. Problem reported by Chris Steel. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: security: Fix setting of PF_SUPERPRIV by __capable()
2008-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (33 commits) Blackfin arch: hook up some missing new system calls Blackfin arch: fix missing digit in SCLK range checking Blackfin arch: do not muck with the UART during boot -- let the serial driver worry about it Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early head.S as we dont need it setup that early Blackfin arch: use %pF when printing out the double fault address so we get symbol names Blackfin arch: add support for the BlackStamp board Blackfin arch: Allow ins functions to have a low latency version Blackfin arch: Print out doublefault addresses, so debug can occur Blackfin arch: shuffle related prototypes together -- no functional changes Blackfin arch: move fixed code defines into fixed_code.h as very few things actually need to know these details Blackfin arch: mark some functions as __init as they are only called from __init functions Blackfin arch: delete dead prototypes Blackfin arch: cleanup cache lock code Blackfin arch: workaround SIC_IWR1 reset bug, by keeping MDMA0/1 always enabled in SIC_IWR1. Blackfin arch: Fix bug - when expanding the trace buffer, it does not print out the decoded instruction. Blackfin arch: Fix Bug - System with EMAC driver enabled - Core not idling Blackfin arch: delete unused cache functions Blackfin arch: convert L2 defines to be the same as the L1 defines Blackfin arch: unify the duplicated portions of __start and split mach-specific pieces into _mach_early_start where they will be easier to trim over time Blackfin arch: add asm/thread_info.h for THREAD_SIZE define ...
2008-08-15Merge branch 'release-2.6.27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6 * 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6: cpuidle: Make ladder governor honor latency requirements fully cpuidle: Menu governor fix wrong usage of measured_us cpuidle: Do not use poll_idle unless user asks for it x86: Fix ioremap off by one BUG
2008-08-15Merge branch 'cpuidle' into release-2.6.27Andi Kleen
2008-08-15cpuidle: Make ladder governor honor latency requirements fullyvenkatesh.pallipadi@intel.com
ladder governor only honored latency requirement when promoting C-states. Instead. it should check for latency requirement on each idle call, and demote to appropriate C-state when there is a latency requirement change. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15cpuidle: Menu governor fix wrong usage of measured_usvenkatesh.pallipadi@intel.com
There is a bug in menu governor where we have if (data->elapsed_us < data->elapsed_us + measured_us) with measured_us already having elapsed_us added in tickless case here unsigned int measured_us = cpuidle_get_last_residency(dev) + data->elapsed_us; Also, it should be last_residency, not measured_us, that need to be used to do comparing and distinguish between expected & non-expected events. Refactor menu_reflect() to fix these two problems. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Wei Gang <gang.wei@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15cpuidle: Do not use poll_idle unless user asks for itvenkatesh.pallipadi@intel.com
poll_idle was added to CPUIDLE, just as a low latency idle handler, to be used in cases when user desires CPUs not to enter any idle state at all. It was supposed to be a run time idle=poll option to the user. But, it was indeed getting used during normal menu and ladder governor default case, with no special user setting (Reported by Linus Torvalds). Change below ensures that poll_idle will not be used unless user explicitly asks pm_qos infrastructure for zero latency requirement. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: wm8990: Implement speaker volume PGA ALSA: wm8990: Fix routing of left DAC to speaker mixer ALSA: virtuoso: add Xonar D1 support
2008-08-15hwmon-vid: Fix AMD K8 VID decodingJean Delvare
Not all AMD K8 have 6 VID pins, contrary to what was assumed in commit 116d0486bdefc11f71e567cadf0c47f788b4dd06. This commit broke support of older CPU models which have only 5 VID pins: http://bugzilla.kernel.org/show_bug.cgi?id=11329 We need two entries in the hwmon-vid table, one for 5-bit VID models (K8 revision <= E) and one for 6-bit VID models (K8 revision >= F). This fixes bug #11329. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Frank Myhr <fmyhr@fhmtech.com> Tested-by: Jean-Luc Coulon <jean.luc.coulon@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15x86: add MAP_STACK mmap flagIngo Molnar
as per this discussion: http://lkml.org/lkml/2008/8/12/423 Pardo reported that 64-bit threaded apps, if their stacks exceed the combined size of ~4GB, slow down drastically in pthread_create() - because glibc uses MAP_32BIT to allocate the stacks. The use of MAP_32BIT is a legacy hack - to speed up context switching on certain early model 64-bit P4 CPUs. So introduce a new flag to be used by glibc instead, to not constrain 64-bit apps like this. glibc can switch to this new flag straight away - it will be ignored by the kernel. If those old CPUs ever matter to anyone, support for it can be implemented. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Ulrich Drepper <drepper@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] mount of IPC$ breaks with iget patch [CIFS] remove trailing whitespace [CIFS] if get root inode fails during mount, cleanup tree connection
2008-08-15Merge branch 'ioremap' into release-2.6.27Andi Kleen
2008-08-15tty: remove resize window special caseAlan Cox
This moves it to being a tty operation. That removes special cases and now also means that resize can be picked up by um and other non vt consoles which may have a resize operation. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/~dedekind/ubifs-2.6: (29 commits) UBIFS: xattr bugfixes UBIFS: remove unneeded check UBIFS: few commentary fixes UBIFS: fix budgeting request alignment in xattr code UBIFS: improve arguments checking in debugging messages UBIFS: always set i_generation to 0 UBIFS: correct spelling of "thrice". UBIFS: support splice_write UBIFS: minor tweaks in commit UBIFS: reserve more space for index UBIFS: print pid in dump function UBIFS: align inode data to eight UBIFS: improve budgeting checks UBIFS: correct orphan deletion order UBIFS: fix typos in comments UBIFS: do not union creat_sqnum and del_cmtno UBIFS: optimize deletions UBIFS: increment commit number earlier UBIFS: remove another unneeded function parameter UBIFS: remove unneeded function parameter ...
2008-08-15Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: md: cancel check/repair requests when recovery is needed Allow raid10 resync to happening in larger chunks. Allow faulty devices to be removed from a readonly array. Don't let a blocked_rdev interfere with read request in raid5/6 Fail safely when trying to grow an array with a write-intent bitmap. Restore force switch of md array to readonly at reboot time. Make writes to md/safe_mode_delay immediately effective.
2008-08-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xilinx_ps2 - fix warning Input: bcm5974 - implement autosuspend support Input: bcm5974 - add driver for Macbook Air and Pro Penryn touchpads Input: paper over a bug in Synaptics X driver Input: evdev - split EVIOCGBIT handlig into a separate function Input: i8042 - Add Dritek quirk for Acer TravelMate 4280 Input: xpad - add Pelican Eclipse D-Pad to the list of devices Input: gpio-keys - make gpio_keys_device_driver static Input: gpio-keys - fix possible NULL pointer dereference Input: wm97xx - enable sub-drivers by default
2008-08-15Merge branch 'release-2.6.27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6 * 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6: ACPI: Fix thermal shutdowns ACPI: bounds check IRQ to prevent memory corruption ACPI: Avoid bogus EC timeout when EC is in Polling mode ACPI : Add the EC dmi table to fix the incorrect ECDT table ACPI: Properly clear flags on false-positives and send uevent on sudden unplug acpi: trivial cleanups acer-wmi: Fix wireless and bluetooth on early AMW0 v2 laptops ACPI: WMI: Set instance for query block calls ACPICA: Additional error checking for pathname utilities ACPICA: Fix possible memory leak in Unload() operator ACPICA: Fix memory leak when deleting thermal/processor objects
2008-08-15alpha: move include/asm-alpha to arch/alpha/include/asmLinus Torvalds
Sam Ravnborg did the build-test that the direct header file move works, I'm just committing it. This is a pure move: mkdir arch/alpha/include git mv include/asm-alpha arch/alpha/include/asm with no other changes. Requested-and-tested-by: Sam Ravnborg <sam@ravnborg.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15x86: Fix ioremap off by one BUGAndi Kleen
Jean Delvare's machine triggered this BUG acpi_os_map_memory phys ffff0000 size 65535 ------------[ cut here ]------------ kernel BUG at arch/x86/mm/pat.c:233! with ACPI in the backtrace. Adding some debugging output showed that ACPI calls acpi_os_map_memory phys ffff0000 size 65535 And ioremap/PAT does this check in 32bit, so addr+size wraps and the BUG in reserve_memtype() triggers incorrectly. BUG_ON(start >= end); /* end is exclusive */ But reserve_memtype already uses u64: int reserve_memtype(u64 start, u64 end, so the 32bit truncation must happen in the caller. Presumably in ioremap when it passes this information to reserve_memtype(). This patch does this computation in 64bit. http://bugzilla.kernel.org/show_bug.cgi?id=11346 Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-08-15ALSA: wm8990: Implement speaker volume PGAMark Brown
The latest revisions of the WM8990 provide a programmable gain amplifier for the speaker - configure the register cache and implement controls for this. Older revisions of the device ignore writes to these controls. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-08-15ALSA: wm8990: Fix routing of left DAC to speaker mixerMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-08-15omfs: fix oops when file metadata is corruptedBob Copeland
A fuzzed fileystem image failed with OMFS when the extent count was used in a loop without being checked against the max number of extents. It also provoked a signed division for an array index that was checked as if unsigned, leading to index by -1. omfsck will be updated to fix these cases, in the meantime bail out gracefully. Reported-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15omfs: fix potential oops when directory size is corruptedBob Copeland
Testing with a modified fsfuzzer reveals a couple of locations in omfs where filesystem variables are ultimately used as loop counters with insufficient sanity checking. In this case, dir->i_size is used to compute the number of buckets in the directory hash. If too large, readdir will overrun a buffer. Since it's an invariant that dir->i_size is equal to the sysblock size, and we already sanity check that, just use that value instead. This fixes the following oops: BUG: unable to handle kernel paging request at c978e004 IP: [<c032298e>] omfs_readdir+0x18e/0x32f Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC Modules linked in: Pid: 4796, comm: ls Not tainted (2.6.27-rc2 #12) EIP: 0060:[<c032298e>] EFLAGS: 00010287 CPU: 0 EIP is at omfs_readdir+0x18e/0x32f EAX: c978d000 EBX: 00000000 ECX: cbfcfaf8 EDX: cb2cf100 ESI: 00001000 EDI: 00000800 EBP: cb2d3f68 ESP: cb2d3f0c DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process ls (pid: 4796, ti=cb2d3000 task=cb175f40 task.ti=cb2d3000) Stack: 00000002 00000000 00000000 c018a820 cb2d3f94 cb2cf100 cbfb0000 ffffff10 cbfb3b80 cbfcfaf8 000001c9 00000a09 00000000 00000000 00000000 cbfcfbc8 c9697000 cbfb3b80 22222222 00001000 c08e6cd0 cb2cf100 cbfb3b80 cb2d3f88 Call Trace: [<c018a820>] ? filldir64+0x0/0xcd [<c018a9f2>] ? vfs_readdir+0x56/0x82 [<c018a820>] ? filldir64+0x0/0xcd [<c018aa7c>] ? sys_getdents64+0x5e/0xa0 [<c01038bd>] ? sysenter_do_call+0x12/0x31 ======================= Code: 00 89 f0 89 f3 0f ac f8 14 81 e3 ff ff 0f 00 48 8d 14 c5 b8 01 00 00 89 45 cc 89 55 f0 e9 8c 01 00 00 8b 4d c8 8b 75 f0 8b 41 18 <8b> 54 30 04 8b 04 30 31 f6 89 5d dc 89 d1 8b 55 b8 0f c8 0f c9 Reported-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15completions: uninline try_wait_for_completion and completion_doneDave Chinner
m68k fails to build with these functions inlined in completion.h. Move them out of line into sched.c and export them to avoid this problem. Signed-off-by: Dave Chinner <david@fromorbit.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15spi: bugfix spi_add_device() with duplicate chipselectsDavid Brownell
When reviewing a recent patch I noticed a potential trouble spot in the registration of new SPI devices. The SPI master driver is told to set the device up before adding it to the driver model, so that it's always properly set up when probe() is called. (This is important, because in the case of inverted chipselects, this device can make the bus misbehave until it's properly deselected. It's got to be set up even if no driver binds to the device.) The trouble spot is that it doesn't first verify that no other device has been added using that chipselect. If such a device has been added, its configuration gets trashed. (Fortunately this has not been a common error!) The fix here adds an explicit check, and a mutex to protect the relevant critical region. [akpm@linux-foundation.org: make the lock local to spi_add_device()] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15fs/inode.c: properly init address_space->writeback_indexChris Mason
write_cache_pages() uses i_mapping->writeback_index to pick up where it left off the last time a given inode was found by pdflush or balance_dirty_pages (or anyone else who sets wbc->range_cyclic) alloc_inode() should set it to a sane value so that writeback doesn't start in the middle of a file. It is somewhat difficult to notice the bug since write_cache_pages will loop around to the start of the file and the elevator helps hide the resulting seeks. For whatever reason, Btrfs hits this often. Unpatched, untarring 30 copies of the linux kernel in series runs at 47MB/s on a single sata drive. With this fix, it jumps to 62MB/s. Signed-off-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15MAINTAINERS: add maintainers for GRU, XPC, XPNET and XPJack Steiner
Add MAINTAINERS for GRU, XPNET, XPC and XP drivers. Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15coretemp: recognize Nehalem CPUsDarrick J. Wong
Add in the CPUID for Nehalem chips. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Cc: Kent Liu <kent.liu@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15ibmaem: don't query the entire sensor repository when reading energy meterDarrick J. Wong
Currently, all sensors are read when the energy meter is queried via sysfs. This introduces a considerable amount of delay and variation in the sysfs reading, which is not desirable when trying to profile energy use. Therefore, read only the energy meters when a sysfs query comes in for them, and don't cache the results so that we always get the latest reading. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15ibmaem: prevent infinite probing loop on x3650 M2 systemsDarrick J. Wong
On older machines, probing for a nonexistent AEM interface returned an IPMI error; when we saw this, we'd stop probing. On the x3650 M2 and (presumably) later, we are returned a value indicating success and a buffer full of garbage or zeroes. This causes the probe function to run in an infinite loop. To fix this, we add one last check--if the interface number we're looking for is higher than the number of interfaces that AEM claims to have, stop probing. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15ibmaem: update the documentation to reflect the current nameDarrick J. Wong
Minor documentation update to reflect the current full name of the power management hardware interface and reflows the text a bit. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15abituguru3: prefer DMI probing to manual probingAlistair John Strachan
Previously the driver was only using DMI to prevent smbus probing on non-Abit motherboards. However, since the manual probing method is brittle and prone to failure on some Abit motherboards (esp. the Abit IP35 Pro) it is better to use DMI to also read the board name and then decide whether or not to probe the bus. At the moment, we do not have a list of valid DMI name strings to use for existing and supported motherboards. This patch only implements DMI probing for the IP35 Pro. For motherboards that can not yet use DMI probing, a warning will be printed to the kernel log asking those users to email me their dmidecode output. The existing manual probing mechanism will be used if CONFIG_DMI is not enabled, if DMI probing fails (for DMI-unsupported motherboards), or if DMI probing fails and the "force" option is set (for DMI-supported motherboards). Ideally in the longer term this manual probing method would be removed. This patch should be safe to apply as it does not change the probing behaviour for most of the supported motherboards, just the IP35 Pro, which already has regressions filed against it in 2.6.26. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11212 Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15abituguru3: update MAINTAINERSAlistair John Strachan
Hans passed maintainership of the abituguru3 hwmon driver onto me. Add a new entry to the MAINTAINERS file for the abituguru3 driver and assign it to me. Also update the existing UGURU entry to indicate that Hans is only responsible for the abituguru driver. Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15i5k_amb: provide labels for temperature sensorsDarrick J. Wong
Export the sensor -> channel/dimm mapping in tempX_label. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15hwmon: ADC124S501 generic driverMarc Pignat
SPI driver for analog to digital converters national semiconductor ADC081S101, ADC124S501, ... Code for 8 channels by Tobias Himmer. This driver adds support for National Semiconductor ADC<bb><c>S<sss> chip family, where: * bb is the resolution in number of bits (8, 10, 12) * c is the number of channels (1, 2, 4, 8) * sss is the maximum conversion speed (021 for 200 kSPS, 051 for 500 kSPS and 101 for 1 MSPS) [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Cc: Tobias Himmer <tobias@himmer-online.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15drivers/hwmon/w83791d.c: fix unused var warningMichael Borisov
drivers/hwmon/w83791d.c: In function `w83791d_probe': drivers/hwmon/w83791d.c:1049: warning: unused variable `val1' Signed-off-by: Michael Borisov <niro@tut.by> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15applesmc: add support for MacbookGuilherme M. Schroeder
Add support for Macbook v3 (sensors and accelerometer). Signed-off-by: Nicolas Boichat <nicolas@boichat.ch> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-15applesmc: support for Intel iMacRoberto De Ioris
This adds support for fans and temperature sensors on intel iMac. Tested on iMac 24" 2.8ghz (iMac8,1), it supports the following sensors: cpu A ambient gpu gpu diode gpu heatsink hd bay 1 memory controller optical drive power Signed-off-by: Roberto De Ioris <roberto@unbit.it> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Jean Delvare <khali@linux-fr.org> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>