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2010-12-05Revert "vfs: show unreachable paths in getcwd and proc"Eric W. Biederman
Because it caused a chroot ttyname regression in 2.6.36. As of 2.6.36 ttyname does not work in a chroot. It has already been reported that screen breaks, and for me this breaks an automated distribution testsuite, that I need to preserve the ability to run the existing binaries on for several more years. glibc 2.11.3 which has a fix for this is not an option. The root cause of this breakage is: commit 8df9d1a4142311c084ffeeacb67cd34d190eff74 Author: Miklos Szeredi <mszeredi@suse.cz> Date: Tue Aug 10 11:41:41 2010 +0200 vfs: show unreachable paths in getcwd and proc Prepend "(unreachable)" to path strings if the path is not reachable from the current root. Two places updated are - the return string from getcwd() - and symlinks under /proc/$PID. Other uses of d_path() are left unchanged (we know that some old software crashes if /proc/mounts is changed). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> So remove the nice sounding, but ultimately ill advised change to how /proc/fd symlinks work. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-05drm/i915/lvds: Always restore panel-fitter when enabling the LVDSChris Wilson
Linus Torvalds pointed out that our code was unbalanced when powering on the panel with respect to the power off sequence in that we were failing to restore the panel-fitter. The consequence of this would be that across a simple DPMS off/on for a non-native mode, without an intervening modeset, the panel fitter would remain disabled and the output would shift on the panel. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-12-05drm/i915/ringbuffer: Only print an error on the second attempt to reset headChris Wilson
There's not much we can do here but hope for the best. However the first failure happens quite frequently and if often remedied by the second attempt to reset HEAD. So only print the error if that attempt also fails. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=19802 Reported-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-12-05drm/i915: announce to userspace that the bsd ring is coherentDaniel Vetter
Otherwise we can't really fix the abi-braindeadness of forcing libva to manually wait for rendering when switching rings. Which in turn makes implementing hw semaphores a pointless exercise (at least for ironlake). [Also added the relaxed fencing param to explain the jump in numbering - relaxed fencing is in -next.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-12-05agp/intel: Fix wrong kunmap in i830_cleanup()Takashi Iwai
Add a missing NULL check and fix the wrong address passed to kunmap() in i830_cleanup(). Cc: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de> [danvet: added cc stable] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-12-04perf tools: Ask for ID PERF_SAMPLE_ info on all PERF_RECORD_ eventsArnaldo Carvalho de Melo
So that we can use -T == --timestamp, asking for PERF_SAMPLE_TIME: $ perf record -aT $ perf report -D | grep PERF_RECORD_ <SNIP> 3 5951915425 0x47530 [0x58]: PERF_RECORD_SAMPLE(IP, 1): 16811/16811: 0xffffffff8138c1a2 period: 215979 cpu:3 3 5952026879 0x47588 [0x90]: PERF_RECORD_SAMPLE(IP, 1): 16811/16811: 0xffffffff810cb480 period: 215979 cpu:3 3 5952059959 0x47618 [0x38]: PERF_RECORD_FORK(6853:6853):(16811:16811) 3 5952138878 0x47650 [0x78]: PERF_RECORD_SAMPLE(IP, 1): 16811/16811: 0xffffffff811bac35 period: 431478 cpu:3 3 5952375068 0x476c8 [0x30]: PERF_RECORD_COMM: find:6853 3 5952395923 0x476f8 [0x50]: PERF_RECORD_MMAP 6853/6853: [0x400000(0x25000) @ 0]: /usr/bin/find 3 5952413756 0x47748 [0xa0]: PERF_RECORD_SAMPLE(IP, 1): 6853/6853: 0xffffffff810d080f period: 859332 cpu:3 3 5952419837 0x477e8 [0x58]: PERF_RECORD_MMAP 6853/6853: [0x3f44600000(0x21d000) @ 0]: /lib64/ld-2.5.so 3 5952437929 0x47840 [0x48]: PERF_RECORD_MMAP 6853/6853: [0x7fff7e1c9000(0x1000) @ 0x7fff7e1c9000]: [vdso] 3 5952570127 0x47888 [0x58]: PERF_RECORD_MMAP 6853/6853: [0x3f46200000(0x218000) @ 0]: /lib64/libselinux.so.1 3 5952623637 0x478e0 [0x58]: PERF_RECORD_MMAP 6853/6853: [0x3f44a00000(0x356000) @ 0]: /lib64/libc-2.5.so 3 5952675720 0x47938 [0x58]: PERF_RECORD_MMAP 6853/6853: [0x3f44e00000(0x204000) @ 0]: /lib64/libdl-2.5.so 3 5952710080 0x47990 [0x58]: PERF_RECORD_MMAP 6853/6853: [0x3f45a00000(0x246000) @ 0]: /lib64/libsepol.so.1 3 5952847802 0x479e8 [0x58]: PERF_RECORD_SAMPLE(IP, 1): 6853/6853: 0xffffffff813897f0 period: 1142536 cpu:3 <SNIP> First column is the cpu and the second the timestamp. That way we can investigate problems in the event stream. If the new perf binary is run on an older kernel, it will disable this feature automatically. Tested-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <1291318772-30880-5-git-send-email-acme@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-12-04perf session: Parse sample earlierArnaldo Carvalho de Melo
At perf_session__process_event, so that we reduce the number of lines in eache tool sample processing routine that now receives a sample_data pointer already parsed. This will also be useful in the next patch, where we'll allow sample the identity fields in MMAP, FORK, EXIT, etc, when it will be possible to see (cpu, timestamp) just after before every event. Also validate callchains in perf_session__process_event, i.e. as early as possible, and keep a counter of the number of events discarded due to invalid callchains, warning the user about it if it happens. There is an assumption that was kept that all events have the same sample_type, that will be dealt with in the future, when this preexisting limitation will be removed. Tested-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <1291318772-30880-4-git-send-email-acme@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-12-04perf events: Make sample_type identity fields available in all PERF_RECORD_ ↵Arnaldo Carvalho de Melo
events If perf_event_attr.sample_id_all is set it will add the PERF_SAMPLE_ identity info: TID, TIME, ID, CPU, STREAM_ID As a trailer, so that older perf tools can process new files, just ignoring the extra payload. With this its possible to do further analysis on problems in the event stream, like detecting reordering of MMAP and FORK events, etc. V2: Fixup header size in comm, mmap and task processing, as we have to take into account different sample_types for each matching event, noticed by Thomas Gleixner. Thomas also noticed a problem in v2 where if we didn't had space in the buffer we wouldn't restore the header size. Tested-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-12-04perf events: Separate the routines handling the PERF_SAMPLE_ identity fieldsArnaldo Carvalho de Melo
Those will be made available in sample like events like MMAP, EXEC, etc in a followup patch. So precalculate the extra id header space and have a separate routine to fill them up. V2: Thomas noticed that the id header needs to be precalculated at inherit_events too: LKML-Reference: <alpine.LFD.2.00.1012031245220.2653@localhost6.localdomain6> Tested-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> LKML-Reference: <1291318772-30880-2-git-send-email-acme@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-12-04perf events: Fix event inherit fallout of precalculated headersThomas Gleixner
The precalculated header size is not updated when an event is inherited. That results in bogus sample entries for all child events. Bug introduced in c320c7b. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <alpine.LFD.2.00.1012031245220.2653@localhost6.localdomain6> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-12-04intel_mid_dma: fix section mismatch warningsDan Williams
Rename intel_mid_dma_pci to intel_mid_dma_pci_driver to pick up the applied annotations of that suffix. Reported-by: <major_Lee@wistron.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-04dmaengine: imx-sdma: fix bug in buffer descriptor initializationAnatolij Gustschin
Currently while submitting scatterlists with more than one SG entry the DMA buffer address from the first SG entry is inserted into all initialized DMA buffer descriptors. This is due to the typo in the for_each_sg() loop where the scatterlist pointer is used for obtaining the DMA buffer address and _not_ the SG list iterator. As a result all received data will be written only into the first DMA buffer while reading. While writing the data from the first DMA buffer is send to the device multiple times. This caused the filesystem destruction on the MMC card when using DMA in mxcmmc driver. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-04drivers/dma/ppc4xx: Use printf extension %pR for struct resourceJoe Perches
Using %pR standardizes the struct resource output. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-04drivers/dma/ioat: Use the ccflag-y instead of EXTRA_CFLAGSTracey Dent
Changed Makefile to use <modules>-y instead of <modules>-objs. Following (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-04parisc: Fix GSC PS/2 driver name for keyboard and mouseGuy Martin
Fix kernel warnings caused by the driver name of GSC PS/2 containing '/'. The following warnings are observed on a K410 system : [ 10.700000] name 'GSC PS/2 keyboard' [ 10.732000] ------------[ cut here ]------------ [ 10.772000] WARNING: at fs/proc/generic.c:323 [ 10.828000] Modules linked in: [ 10.916000] [ 10.916000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 10.936000] PSW: 00000000000001000000000000001111 Not tainted [ 10.992000] r00-03 0004000f 104fe3e0 10201ea0 00000000 [ 11.060000] r04-07 4fc405c8 00000006 4fc405c8 4fc40694 [ 11.124000] r08-11 4fc40708 10438aa0 00000001 1043bfc8 [ 11.184000] r12-15 104ff2a0 104ff2a0 4fc38634 104ff2a0 [ 11.248000] r16-19 f0001570 10479af0 f000006c 1044fe50 [ 11.308000] r20-23 00000000 00000028 104cd858 00000000 [ 11.372000] r24-27 ffffffff 0000000e 1044fe10 1043bbe0 [ 11.436000] r28-31 0000002b 00000078 4fc40800 0000000d [ 11.496000] sr00-03 00000000 00000000 00000000 00000000 [ 11.560000] sr04-07 00000000 00000000 00000000 00000000 [ 11.624000] [ 11.688000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4 [ 11.704000] IIR: 03ffe01f ISR: 00000000 IOR: 0000000d [ 11.772000] CPU: 0 CR30: 4fc40000 CR31: f01043b0 [ 11.836000] ORIG_R28: 4fc40940 [ 11.904000] IAOQ[0]: __xlate_proc_name+0x90/0xd0 [ 11.940000] IAOQ[1]: __xlate_proc_name+0x94/0xd0 [ 11.996000] RP(r2): __xlate_proc_name+0x90/0xd0 [ 12.052000] Backtrace: [ 12.108000] [<10257790>] vsnprintf+0x290/0x4f4 [ 12.136000] [ 12.188000] ---[ end trace 91bf6ece17e322dd ]--- [ 12.208000] serio: GSC PS/2 keyboard port at 0x0001c000 irq 19 @ 10:12:7 [ 12.264000] name 'GSC PS/2 mouse' [ 12.344000] ------------[ cut here ]------------ [ 12.384000] WARNING: at fs/proc/generic.c:323 [ 12.436000] Modules linked in: [ 12.524000] [ 12.528000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 12.544000] PSW: 00000000000001000000000000001111 Tainted: G W [ 12.600000] r00-03 0004000f 104fe3e0 10201ea0 00000000 [ 12.680000] r04-07 4fc405c8 00000006 4fc405c8 4fc40694 [ 12.740000] r08-11 4fc40708 10438aa0 00000001 1043bfc8 [ 12.804000] r12-15 104ff2a0 104ff2a0 4fc38634 104ff2a0 [ 12.868000] r16-19 f0001570 10479af0 f000006c 1044fe50 [ 12.928000] r20-23 00000000 00000025 104cd858 00000000 [ 12.992000] r24-27 ffffffff 0000000e 1044fe10 1043bbe0 [ 13.056000] r28-31 00000028 00000078 4fc40800 0000000d [ 13.116000] sr00-03 00000000 00000000 00000000 00000000 [ 13.180000] sr04-07 00000000 00000000 00000000 00000000 [ 13.244000] [ 13.308000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4 [ 13.324000] IIR: 03ffe01f ISR: 00000000 IOR: 0000000d [ 13.392000] CPU: 0 CR30: 4fc40000 CR31: f01043b0 [ 13.456000] ORIG_R28: 4fc40940 [ 13.524000] IAOQ[0]: __xlate_proc_name+0x90/0xd0 [ 13.560000] IAOQ[1]: __xlate_proc_name+0x94/0xd0 [ 13.616000] RP(r2): __xlate_proc_name+0x90/0xd0 [ 13.672000] Backtrace: [ 13.728000] [<10257790>] vsnprintf+0x290/0x4f4 [ 13.756000] [ 13.808000] ---[ end trace 91bf6ece17e322de ]--- [ 13.828000] serio: GSC PS/2 mouse port at 0x00020100 irq 19 @ 10:12:8 Signed-off-by: Guy Martin <gmsoft@tuxicoman.be> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2010-12-04parisc: KittyHawk LCD fixGuy Martin
K class aka KittyHawk don't have LED support on their LCD. Installing HP-UX confirmed this. The current led_wq fills the LCD with black characters each time it runs. The patch prevents the led_wq workqueue and its proc entry to be created for KittyHawk machines. It also increase min_cmd_delay as currently, one character out of two is lost when a string is sent to the LCD. Signed-off-by: Guy Martin <gmsoft@tuxicoman.be> Signed-off-by: Kyle McMartin <kyle@mcmartin.c>
2010-12-04parisc: convert the rest of the irq handlers to simple/percpuJames Bottomley
The generic conversion eliminates the spurious no_ack and no_end routines, converts all the cascaded handlers to handle_simple_irq() and makes iosapic use a modified handle_percpu_irq() to become the same as the CPU irq's. This isn't an essential change, but it eliminates the mask/unmask overhead of handle_level_irq(). Signed-off-by: James Bottomley <James.Bottomley@suse.de> Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2010-12-04parisc: fix dino/gsc interruptsJames Bottomley
The essential problem we're currently having is that dino (and gsc) is a cascaded CPU interrupt. Under the old __do_IRQ() handler, our CPU interrupts basically did an ack followed by an end. In the new scheme, we replaced them with level handlers which do a mask, an ack and then an unmask (but no end). Instead, with the renaming of end to eoi, we actually want to call the percpu flow handlers, because they actually have all the characteristics we want. This patch does the conversion and gets my C360 booting again. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2010-12-04drm/i915: Factor in pixel-repeat in FDI M/N calculationChris Wilson
Fixes the modesetting on the secondary panel of the Libretto W100 and presumably many more Ironlake laptops with SDVO LVDS displays. Reported-and-tested-by: Matthew Willoughby <mattfredwill@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-12-04ARM: 6523/1: iop: ensure sched_clock() is notraceRabin Vincent
Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-04ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module.Marcelo Roberto Jimenez
This patch fixes a compilation issue when compiling PCMCIA SA1100 support as a module with PCMCIA_DEBUG enabled. The symbol soc_pcmcia_debug was not beeing exported. ARM: pcmcia: Fix for building DEBUG with sa11xx_base.c as a module. This patch fixes a compilation issue when compiling PCMCIA SA1100 support as a module with PCMCIA_DEBUG enabled. The symbol soc_pcmcia_debug was not beeing exported. Cc: <stable@kernel.org> Signed-off-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-04ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpersDave Martin
The existing code invokes the syscall with rubbish in r7, due to what looks like an incorrect literal load idiom. Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-04ALSA: hda - Enable jack sense for Thinkpad Edge 13Manoj Iyer
Added a quirk to cxt5066_cfg_tbl to enable jack sense for ThinkPad Edge 13. Reference: http://launchpad.net/bugs/685015 Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-12-04slub: Fix a crash during slabinfo -vTero Roponen
Commit f7cb1933621bce66a77f690776a16fe3ebbc4d58 ("SLUB: Pass active and inactive redzone flags instead of boolean to debug functions") missed two instances of check_object(). This caused a lot of warnings during 'slabinfo -v' finally leading to a crash: BUG ext4_xattr: Freepointer corrupt ... BUG buffer_head: Freepointer corrupt ... BUG ext4_alloc_context: Freepointer corrupt ... ... BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff810a291f>] file_sb_list_del+0x1c/0x35 PGD 79d78067 PUD 79e67067 PMD 0 Oops: 0002 [#1] SMP last sysfs file: /sys/kernel/slab/:t-0000192/validate This patch fixes the problem by converting the two missed instances. Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tero Roponen <tero.roponen@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2010-12-03drm/i915: Death to the unnecessary 64bit divideChris Wilson
Use the hardware DDA to calculate the ratio with as much accuracy as is possible. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-12-03Merge branch '2.6.37-rc4-pvhvm-fixes' of ↵Linus Torvalds
git://xenbits.xen.org/people/sstabellini/linux-pvhvm * '2.6.37-rc4-pvhvm-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm: xen: unplug the emulated devices at resume time xen: fix save/restore for PV on HVM guests with pirq remapping xen: resume the pv console for hvm guests too xen: fix MSI setup and teardown for PV on HVM guests xen: use PHYSDEVOP_get_free_pirq to implement find_unbound_pirq
2010-12-03ARM: mini2440: Fix Kconfig to allow kernel to buildBen Dooks
The MACH_MINI2440 entry requires the backlight LED driver, but this subsystem has not been enabled and the select of LEDS_TRIGGER_BACKLIGHT alone is insufficient to enable the necessary bits of the LED driver. Add NEW_LEDS, LEDS_CLASS and LEDS_TRIGGER to the select to allow the kernel to link. This fixes the following error: drivers/built-in.o: In function `led_trigger_set': /home/ben/linux.git/drivers/leds/led-triggers.c:116: undefined reference to `led_brightness_set' Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-12-03Merge branches 'upstream/core' and 'upstream/bugfix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: allocate irq descs on any NUMA node xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memory xen: use default_idle xen: clean up "extra" memory handling some more * 'upstream/bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: x86/32: perform initial startup on initial_page_table xen: don't bother to stop other cpus on shutdown/reboot
2010-12-03drm/i915: Clean conflicting modesetting registers upon initChris Wilson
If we leave the registers in a conflicting state then when we attempt to teardown the active mode, we will not disable the pipes and planes in the correct order -- leaving a plane reading from a disabled pipe and possibly leading to undefined behaviour. Reported-and-tested-by: Andy Whitcroft <apw@canonical.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32078 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-12-03Merge 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: ASoC: omap: N810: Don't select CONFIG_OMAP_MUX but make it as dependency ALSA: hda: Use "alienware" model quirk for another SSID ASoC: WM8731: Fix incorrect mask for bypass path disable s6105-ipcam: fix compilation s6000-pcm: fix compilation s6000-i2s: fix compilation ASoC: Fix missing spin_unlock_irqrestore ALSA: Fix SNDCTL_DSP_RESET ioctl for OSS emulation ASoC: Add missing dev_set_drvdata in p1022_ds_probe ASoC: Add missing dev_set_drvdata in mpc8610_hpcd_probe ASoC: Remove unneeded !! operations while checking return value of nuc900_checkready ASoC: Fix compile error for nuc900-pcm.c ASoC: Fix prototype for nuc900_ac97_probe and nuc900_ac97_remove ASoC: Fix compile error for nuc900-ac97.c ALSA: hda: Use BIOS auto-parsing instead of existing model quirk for MEDION MD2
2010-12-03Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: fix corrupted PEB detection for NOR flash
2010-12-03Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: se/7724: Remove FSI/B of GPIO init code sh: se/7724: Update clock framework of FSI clock to non-legacy sh: Assume new page cache pages have dirty dcache lines. sh: boards: mach-se: use IS_ERR() instead of NULL check sh: Add div6_reparent_clks to clock framework for FSI dma: shdma: add a MODULE_ALIAS() to allow module autoloading
2010-12-03Merge branch 'fbdev-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6 * 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: lxfb: Maintain video processor palette through suspend/resume video: da8xx: Register IRQ as last thing in driver probing. framebuffer: fix fbcmap.c kernel-doc warning
2010-12-03MN10300: Implement asm/syscall.hDavid Howells
Implement asm/syscall.h for the MN10300 arch. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-03tracing: Add TRACE_EVENT_CONDITIONAL()Steven Rostedt
There are instances in the kernel that we only want to trace a tracepoint when a certain condition is set. But we do not want to test for that condition in the core kernel. If we test for that condition before calling the tracepoin, then we will be performing that test even when tracing is not enabled. This is 99.99% of the time. We currently can just filter out on that condition, but that happens after we write to the trace buffer. We just wasted time writing to the ring buffer for an event we never cared about. This patch adds: TRACE_EVENT_CONDITION() and DEFINE_EVENT_CONDITION() These have a new TP_CONDITION() argument that comes right after the TP_ARGS(). This condition can use the parameters of TP_ARGS() in the TRACE_EVENT() to determine if the tracepoint should be traced or not. The TP_CONDITION() will be placed in a if (cond) trace; For example, for the tracepoint sched_wakeup, it is useless to trace a wakeup event where the caller never actually wakes anything up (where success == 0). So adding: TP_CONDITION(success), which uses the "success" parameter of the wakeup tracepoint will have it only trace when we have successfully woken up a task. Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-12-03UBI: fix corrupted PEB detection for NOR flashArtem Bityutskiy
My new shiny code for corrupted PEB detection has NOR specific bug. We tread PEB as corrupted and preserve it, if 1. EC header is OK. 2. VID header is corrupted. 3. data area is not "all 0xFFs" In case of NOR we have 'nor_erase_prepare()' quirk, which invalidates the headers before erasing the PEB. And we invalidate first the VID header, and then the EC header. So if a power cut happens after we have invalidated the VID header, but before we have invalidated the EC header, we end up with a PEB which satisfies the above 3 conditions, and the scanning code will treat it as corrupted, and will print scary warnings, wrongly. This patch fixes the issue by firt invalidating the EC header, then invalidating the VID header. In case of power cut inbetween, we still just lose the EC header, and UBI can deal with this situation gracefully. Thanks to Anatolij Gustschin <agust@denx.de> for tracking this down. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reported-by: Anatolij Gustschin <agust@denx.de> Tested-by: Anatolij Gustschin <agust@denx.de>
2010-12-03ALSA: hda - Fix ThinkPad T410[s] docking station line-outJohn Baboval
On the docking station for the Lenovo T410 and T410s, the line-out doesn't work. The trouble seems to be that it generates a plug event, but then doesn't report that the jack is connected. So automute mutes the jack when you plug something into it. The following patch (next message) fixes it. Signed-off-by: John Baboval <john.baboval at virtualcomputer.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-12-03ALSA: hda: Use model=lg quirk for LG P1 Express to enable playback and captureDaniel T Chen
BugLink: https://launchpad.net/bugs/595482 The original reporter states that audible playback from the internal speaker is inaudible despite the hardware being properly detected. To work around this symptom, he uses the model=lg quirk to properly enable both playback, capture, and jack sense. Another user corroborates this workaround on separate hardware. Add this PCI SSID to the quirk table to enable it for further LG P1 Expresses. Reported-and-tested-by: Philip Peitsch <philip.peitsch@gmail.com> Tested-by: nikhov Cc: <stable@kernel.org> [2.6.32+] Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-12-03drivers/dma/: Use the ccflag-y instead of EXTRA_CFLAGSTracey Dent
Use the ccflag-y flag instead of EXTRA_CFLAGS because EXTRA_CFLAGS is deprecated and should now be switched. According to (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent <tdent48227@gmail.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-03dma: intel_mid_dma: fix double free on mid_setup_dma error pathAxel Lin
We should not call kfree(dma) in mid_setup_dma error path because the memory is allocated in intel_mid_dma_probe and will be freed in intel_mid_dma_probe error path if mid_setup_dma return error. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-03dma: imx-dma: fix imxdma_probe error pathAxel Lin
otherwise, i will be -1 inside the latest iteration of the while loop. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-12-03Merge branch 'sh/urgent' into sh-fixes-for-linusPaul Mundt
2010-12-03sh: se/7724: Remove FSI/B of GPIO init codeNobuhiro Iwamatsu
se7724 board does not have FSI/B. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-03sh: se/7724: Update clock framework of FSI clock to non-legacyNobuhiro Iwamatsu
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-03Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French
2010-12-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: length resolution should be reported units/mm HID: add support for F430 Force Feedback Wheel HID: egalax: Use kzalloc HID: Remove KERN_DEBUG from dbg_hid use Manually fixed trivial conflict in drivers/hid/hid-input.c (due to removal of KERN_DEBUG from dbg_hid use clashing with new keycode interface switch)
2010-12-02omap: PM debug: fix wake-on-timer debugfs dependencyKevin Hilman
Wakeup-on-timer code does not have/need debugfs dependency. Move the function out of debugfs ifdef. Fixes compile error when CONFIG_DEBUG_FS is disabled but PM debug is enabled. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-02x86: Improve TSC calibration using a delayed workqueueJohn Stultz
Boot to boot the TSC calibration may vary by quite a large amount. While normal variance of 50-100ppm can easily be seen, the quick calibration code only requires 500ppm accuracy, which is the limit of what NTP can correct for. This can cause problems for systems being used as NTP servers, as every time they reboot it can take hours for them to calculate the new drift error caused by the calibration. The classic trade-off here is calibration accuracy vs slow boot times, as during the calibration nothing else can run. This patch uses a delayed workqueue to calibrate the TSC over the period of a second. This allows very accurate calibration (in my tests only varying by 1khz or 0.4ppm boot to boot). Additionally this refined calibration step does not block the boot process, and only delays the TSC clocksoure registration by a few seconds in early boot. If the refined calibration strays 1% from the early boot calibration value, the system will fall back to already calculated early boot calibration. Credit to Andi Kleen who suggested using a timer quite awhile back, but I dismissed it thinking the timer calibration would be done after the clocksource was registered (which would break things). Forgive me for my short-sightedness. This patch has worked very well in my testing, but TSC hardware is quite varied so it would probably be good to get some extended testing, possibly pushing inclusion out to 2.6.39. Signed-off-by: John Stultz <johnstul@us.ibm.com> LKML-Reference: <1289003985-29060-1-git-send-email-johnstul@us.ibm.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> CC: Thomas Gleixner <tglx@linutronix.de> CC: Ingo Molnar <mingo@elte.hu> CC: Martin Schwidefsky <schwidefsky@de.ibm.com> CC: Clark Williams <williams@redhat.com> CC: Andi Kleen <andi@firstfloor.org>
2010-12-02Merge remote branch 'tip/x86/tsc' into fortglx/2.6.38/tip/x86/tscJohn Stultz
Conflicts: Documentation/kernel-parameters.txt
2010-12-02timers: Introduce timerlist infrastructure.John Stultz
The timerlist infrastructure is a thin layer over the rbtree code that implements a simple list of timers sorted by an expires value, and a getnext function that provides a pointer to the earliest timer. This infrastructure allows drivers and other kernel infrastructure to easily implement timers without duplicating code. Signed-off-by: John Stultz <john.stultz@linaro.org> LKML Reference: <1290136329-18291-2-git-send-email-john.stultz@linaro.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> CC: Alessandro Zummo <a.zummo@towertech.it> CC: Thomas Gleixner <tglx@linutronix.de> CC: Richard Cochran <richardcochran@gmail.com>