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2010-01-16kfifo: sanitize *_user error handlingAndi Kleen
Right now for kfifo_*_user it's not easily possible to distingush between a user copy failing and the FIFO not containing enough data. The problem is that both conditions are multiplexed into the same return code. Avoid this by moving the "copy length" into a separate output parameter and only return 0/-EFAULT in the main return value. I didn't fully adapt the weird "record" variants, those seem to be unused anyways and were rather messy (should they be just removed?) I would appreciate some double checking if I did all the conversions correctly. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Stefani Seibold <stefani@seibold.net> Cc: Roland Dreier <rdreier@cisco.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Andy Walls <awalls@radix.net> Cc: Vikram Dhillon <dhillonv10@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16kfifo: use void * pointers for user buffersAndi Kleen
The pointers to user buffers are currently unsigned char *, which requires a lot of casting in the caller for any non-char typed buffers. Use void * instead. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Stefani Seibold <stefani@seibold.net> Cc: Roland Dreier <rdreier@cisco.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Andy Walls <awalls@radix.net> Cc: Vikram Dhillon <dhillonv10@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16tty.h: make tty_port_get() static inlineRandy Dunlap
I get a few dozen of these warnings when using gcc (GCC) 4.4.1 20090725 (Red Hat 4.4.1-2): In file included from mmotm-2010-0113-1217/init/do_mounts.c:5: mmotm-2010-0113-1217/include/linux/tty.h: In function 'tty_port_get': mmotm-2010-0113-1217/include/linux/tty.h:469: warning: '______f' is static but declared in inline function 'tty_port_get' which is not static so make the function static inline. [akpm@linux-foundation.org: may as well convert tty_port_users() also] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16edac: i5000_edac critical fix panic out of boundsTamas Vincze
EDAC MC0: INTERNAL ERROR: channel-b out of range (4 >= 4) Kernel panic - not syncing: EDAC MC0: Uncorrected Error (XEN) Domain 0 crashed: 'noreboot' set - not rebooting. This happens because FERR_NF_FBD bit 28 is not updated on i5000. Due to that, both bits 28 and 29 may be equal to one, returning channel = 3. As this value is invalid, EDAC core generates the panic. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14568 Signed-off-by: Tamas Vincze <tom@vincze.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16m68knommu: fix invalid flags on coldfire pit clocksourcejohn stultz
The m68knommu coldfire pit clocksource looks like it was incorrectly marked as a continuous clocksource. Running with it marked as a continuous clocksource could cause hangs when the system switches to highres mode or enables nohz. This patch removes the CLOCK_SOURCE_IS_CONTINUOUS flag on the coldfire pit clocksource. This will disallow systems using this clocksource from entering oneshot mode (disabling highres timers and nohz). Signed-off-by: John Stultz <johnstul@us.ibm.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Cc: Steven King <sfking@fdwdc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16serial/8250_pnp: add a new Fujitsu Wacom Tablet PC devicePing
This is a new two finger touch Fujitsu Wacom Tablet PC. Signed-off-by: Ping Cheng <pingc@wacom.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16markup_oops.pl: fix error with x86Hui Zhu
When I try to use markup_oops.pl in x86, I always get: cat 1 | perl markup_oops.pl ./vmlinux objdump: --start-address: bad number: NaN No matching code found This is because in line: if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+0x([0-9a-f]+)\/[a-f0-9]/) { $function = $1; $func_offset = $2; } $func_offset will get a number like "0x2" But in follow code: my $decodestart = Math::BigInt->from_hex("0x$target") - Math::BigInt->from_hex("0x$func_offset"); It add other ox to ox2. Then this value will be set to NaN. So I made a small patch to fix it. Signed-off-by: Hui Zhu <teawater@gmail.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16viafb: fix acceleration for some chipsErik-Jan Post
Fix a regression in hardware acceleration which made the accelerated framebuffer unusable on some chips. These need extra initialization and an extra flag which is no longer needed/available on current chips. Signed-off-by: Erik-Jan Post <ej.lfs@xs4all.nl> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16viafb: do modesetting after updating variablesErik-Jan Post
Reorder viafb_set_par to allow using the updated variables in viafb_setmode. This fixes a regression that prevented proper runtime mode changes. Signed-off-by: Erik-Jan Post <ej.lfs@xs4all.nl> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16viafb: fix LCD hardware cursor regressionFlorian Tobias Schandinat
Although I'd consider this a hardware bug, as there is hardware out that for whatever reason does not support hardware cursors on LCD output we have to care about it in the driver. This fixes a regression (invisible cursor) introduced by: viafb: cleanup viafb_cursor Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Reported-by: Julian Wollrath <jwollrath@web.de> Tested-by: Julian Wollrath <jwollrath@web.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16kfifo: fix kfifo_out_locked race bugStefani Seibold
Fix a wrong optimization in include/linux/kfifo.h which could cause a race in kfifo_out_locked. Signed-off-by: Stefani Seibold <stefani@seibold.net> Reported-by: Johan Hovold <jhovold@gmail.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-16i2c: Do not use device name after device_unregisterThadeu Lima de Souza Cascardo
dev_dbg outputs dev_name, which is released with device_unregister. This bug resulted in output like this: i2c Xy2�0: adapter [SMBus I801 adapter at 1880] unregistered The right output would be: i2c i2c-0: adapter [SMBus I801 adapter at 1880] unregistered Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-01-16i2c/pca: Don't use *_interruptibleWolfram Sang
Unexpected signals can disturb the bus-handling and lock it up. Don't use interruptible in 'wait_event_*' and 'wake_*' as in commits dc1972d02747d2170fb1d78d114801f5ecb27506 (for cpm), 1ab082d7cbd0f34e39a5396cc6340c00bc5d66ef (for mpc), b7af349b175af45f9d87b3bf3f0a221e1831ed39 (for omap). Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-01-16i2c-ali1563: Remove sparse warningsMárton Németh
Remove the following sparse warnings (see "make C=1"): * drivers/i2c/busses/i2c-ali1563.c:91:3: warning: do-while statement is not a compound statement * drivers/i2c/busses/i2c-ali1563.c:161:3: warning: do-while statement is not a compound statement Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-01-16i2c: Test off by one in {piix4,vt596}_transaction()Roel Kluin
With `while (timeout++ < MAX_TIMEOUT)' timeout reaches MAX_TIMEOUT + 1 after the loop. This is probably unlikely to produce a problem. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-01-16i2c-core: Storage class should be before const qualifierTobias Klauser
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-01-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: enable 36bit physical address for hardware status page drm/i915: fix eDP pipe mask drm/i915: fix pixel color depth setting on eDP drm/i915: parse eDP panel color depth from VBT block drm/i915: disable LVDS downclock by default drm/i915: Fix the incorrect cursor A bit definition in DSPFW2 register drm/i915: Remove chatty execbuf failure message. drm/i915: remove loop in Ironlake interrupt handler drm/i915: Don't wait interruptible for possible plane buffer flush drm/i915: try another possible DDC bus for the SDVO device with multiple outputs drm/i915: Read the response after issuing DDC bus switch command drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP drm/i915: Fix resume regression on MSI Wind U100 w/o KMS drm/i915: Fix Ironlake M/N/P ranges to match the spec drm/i915: Use find_pll function to calculate DPLL setting for LVDS downclock drm/i915: Add HP nx9020/SamsungSX20S to ACPI LID quirk list drm/i915: disable TV hotplug status check Trivial conflicts in drivers/gpu/drm/i915/i915_drv.c due to i915 non-modeset suspend fix with different comment.
2010-01-16do_add_mount() should sanitize mnt_flagsAl Viro
MNT_WRITE_HOLD shouldn't leak into new vfsmount and neither should MNT_SHARED (the latter will be set properly, along with the rest of shared-subtree data structures) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-16CIFS shouldn't make mountpoints shrinkableAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-16mnt_flags fixes in do_remount()Al Viro
* need vfsmount_lock over modifying it * need to preserve MNT_SHARED/MNT_UNBINDABLE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-16attach_recursive_mnt() needs to hold vfsmount_lock over set_mnt_shared()Al Viro
race in mnt_flags update Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-16may_umount() needs namespace_semAl Viro
otherwise it races with clone_mnt() changing mnt_share/mnt_slaves Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-16ACPI: Fix section mismatch error for acpi_early_processor_set_pdc()Luck, Tony
Alex Chiang introduced acpi_early_processor_set_pdc() in commit: ACPI: processor: call _PDC early 78f1699659963fff97975df44db6d5dbe7218e55 But this results in a section mismatch: WARNING: drivers/acpi/acpi.o(.text+0xa9c1): Section mismatch in reference from the function acpi_early_processor_set_pdc() to the variable .cpuinit.data:processor_idle_dmi_table The function acpi_early_processor_set_pdc() references the variable __cpuinitdata processor_idle_dmi_table. This is often because acpi_early_processor_set_pdc lacks a __cpuinitdata annotation or the annotation of processor_idle_dmi_table is wrong. The only caller of acpi_early_processor_set_pdc() is acpi_bus_init() which is an "__init" function. So the correct fix here is to mark acpi_early_processor_set_pdc() "__init" too. Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16eeepc-laptop: disable wireless hotplug for 1201NCorentin Chary
Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16eeepc-laptop: add hotplug_disable parameterCorentin Chary
Some new models need to disable wireless hotplug. For the moment, we don't know excactly what models need that, except 1005HA. Users will be able to use that param as a workaround. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16eeepc-laptop: switch to using sparse keymap libraryDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16eeepc-laptop: dmi blacklist to disable pci hotplug codeCorentin Chary
This is a short term workaround for Eeepc 1005HA. refs: <http://bugzilla.kernel.org/show_bug.cgi?id=14570> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16eeepc-laptop: disable cpu speed control on EeePC 701Alan Jenkins
The EeePC 4G ("701") implements CFVS, but it is not supported by the pre-installed OS, and the original option to change it in the BIOS setup screen was removed in later versions. Judging by the lack of "Super Hybrid Engine" on Asus product pages, this applies to all "701" models (4G/4G Surf/2G Surf). So Asus made a deliberate decision not to support it on this model. We have several reports that using it can cause the system to hang [1]. That said, it does not happen all the time. Some users do not experience it at all (and apparently wish to continue "right-clocking"). Check for the EeePC 701 using DMI. If met, then disable writes to the "cpufv" sysfs attribute and log an explanatory message. Add a "cpufv_disabled" attribute which allow users to override this policy. Writing to this attribute will log a second message. The sysfs attribute is more useful than a module option, because it makes it easier for userspace scripts to provide consistent behaviour (according to user configuration), regardless of whether the kernel includes this change. [1] <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=559578> Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-16ACPI: don't cond_resched if irq is disabledXiaotian Feng
commit 8bd108d adds preemption point after each opcode parse, then a sleeping function called from invalid context bug was founded during suspend/resume stage. this was fixed in commit abe1dfa by don't cond_resched when irq_disabled. But recent commit 138d156 changes the behaviour to don't cond_resched when in_atomic. This makes the sleeping function called from invalid context bug happen again, which is reported in http://lkml.org/lkml/2009/12/1/371. This patch also fixes http://bugzilla.kernel.org/show_bug.cgi?id=14483 Reported-and-bisected-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-and-bisected-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-15ACPI: Remove unnecessary cast.H Hartley Sweeten
The struct seq_file 'private' member is a void *, the cast is not needed. Also, remove an extra whitespace line. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-15ACPI: Advertise to BIOS in _OSC: _OST on _PPC changesZhao Yakui
If the BIOS pokes the system-wide OSC bits to see if Linux supports evaluating _OST after a _PPC change notification, answer yes. Also, fix an oversight where we neglected to set the OSC bit advertising processor aggregator device support when acpi-pad is compiled as a module. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-15ACPI: EC: Add wait for irq stormAlexey Starikovskiy
Merge of poll and irq modes accelerated EC transaction, so that keyboard starts to suffer again. Add msleep(1) into transaction path for the storm to allow keyboard controller to do its job. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14747 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-15ACPI: SBS: Move SBS HC callback to faster Notify queueAlexey Starikovskiy
SBS transactions should happen in Notify work queue, to not create a dead lock with GPE execution accessing SBS devices. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2010-01-15Merge branch 'for-linus/samsung' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/samsung' of git://git.fluff.org/bjdooks/linux: ARM: MINI2440: Fixup __initdata usage ARM: MINI2440: Fix crash on boot due to improper __initdata qualifier ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulator ARM: S3C: NAND: Check the existence of nr_map before copying
2010-01-15Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: amd64_edac: Ensure index stays within bounds in amd64_get_scrub_rate
2010-01-15Merge 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: sentelic - fix left/right horizontal scroll mapping Input: pmouse - move Sentelic probe down the list Input: add compat support for sysfs and /proc capabilities output Input: i8042 - add Dritek quirk for Acer Aspire 5610. Input: xbox - do not use GFP_KERNEL under spinlock Input: psmouse - fix Synaptics detection when protocol is disabled Input: bcm5974 - report ABS_MT events Input: davinci_keyscan - add device_enable method to platform data Input: evdev - be less aggressive about sending SIGIO notifies Input: atkbd - fix canceling event_work in disconnect Input: serio - fix potential deadlock when unbinding drivers Input: gf2k - fix &&/|| confusion in gf2k_connect()
2010-01-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6: alpha: cpumask_of_node() should handle -1 as a node alpha: add myself as a maintainer, and drop mention of 2.4
2010-01-15Merge branch 'sh/for-2.6.33' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: serial: sh-sci: using correct fifo size for SCIF and SCIFA ports. sh: mach-ecovec24: Add motion sensor driver support.
2010-01-15drm/i915: enable 36bit physical address for hardware status pageZhenyu Wang
This enables possible 36bit address mask on 965G that use physical address for hw status page. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15inotify: only warn once for inotify problemsEric Paris
inotify will WARN() if it finds that the idr and the fsnotify internals somehow got out of sync. It was only supposed to do this once but due to this stupid bug it would warn every single time a problem was detected. Signed-off-by: Eric Paris <eparis@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-15inotify: do not reuse watch descriptorsEric Paris
Since commit 7e790dd5fc937bc8d2400c30a05e32a9e9eef276 ("inotify: fix error paths in inotify_update_watch") inotify changed the manor in which it gave watch descriptors back to userspace. Previous to this commit inotify acted like the following: inotify_add_watch(X, Y, Z) = 1 inotify_rm_watch(X, 1); inotify_add_watch(X, Y, Z) = 2 but after this patch inotify would return watch descriptors like so: inotify_add_watch(X, Y, Z) = 1 inotify_rm_watch(X, 1); inotify_add_watch(X, Y, Z) = 1 which I saw as equivalent to opening an fd where open(file) = 1; close(1); open(file) = 1; seemed perfectly reasonable. The issue is that quite a bit of userspace apparently relies on the behavior in which watch descriptors will not be quickly reused. KDE relies on it, I know some selinux packages rely on it, and I have heard complaints from other random sources such as debian bug 558981. Although the man page implies what we do is ok, we broke userspace so this patch almost reverts us to the old behavior. It is still slightly racey and I have patches that would fix that, but they are rather large and this will fix it for all real world cases. The race is as follows: - task1 creates a watch and blocks in idr_new_watch() before it updates the hint. - task2 creates a watch and updates the hint. - task1 updates the hint with it's older wd - task removes the watch created by task2 - task adds a new watch and will reuse the wd originally given to task2 it requires moving some locking around the hint (last_wd) but this should solve it for the real world and be -stable safe. As a side effect this patch papers over a bug in the lib/idr code which is causing a large number WARN's to pop on people's system and many reports in kerneloops.org. I'm working on the root cause of that idr bug seperately but this should make inotify immune to that issue. Signed-off-by: Eric Paris <eparis@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-15drm/i915: fix eDP pipe maskZhenyu Wang
eDP could be on pipe A or B. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15drm/i915: fix pixel color depth setting on eDPZhenyu Wang
Original DP mode_valid check didn't take pixel color depth into account, which made one 1600x900 eDP panel's mode check invalid because of overclock, but actually this 6bpc panel does can work with x1 lane at 2.7G. This one trys to take bpp value properly both in mode validation and mode setting. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15drm/i915: parse eDP panel color depth from VBT blockZhenyu Wang
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15drm/i915: disable LVDS downclock by defaultJesse Barnes
Many platform support this feature, and it can provide significant power savings when the reduced refresh rate is low. However, on some platforms a secondary (reduced) timing is provided but not actually supported by the hardware. This results in undesirable flicker at runtime. So disable the feature by default, but allow users to opt-in to the reduced clock behavior with a new module parameter, lvds_downclock, that can be set to 1 to enable the feature. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15drm/i915: Fix the incorrect cursor A bit definition in DSPFW2 registerZhao Yakui
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15drm/i915: Remove chatty execbuf failure message.Eric Anholt
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> (in principle) Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-15xfs: xfs_swap_extents needs to handle dynamic fork offsetsDave Chinner
When swapping extents, we can corrupt inodes by swapping data forks that are in incompatible formats. This is caused by the two indoes having different fork offsets due to the presence of an attribute fork on an attr2 filesystem. xfs_fsr tries to be smart about setting the fork offset, but the trick it plays only works on attr1 (old fixed format attribute fork) filesystems. Changing the way xfs_fsr sets up the attribute fork will prevent this situation from ever occurring, so in the kernel code we can get by with a preventative fix - check that the data fork in the defragmented inode is in a format valid for the inode it is being swapped into. This will lead to files that will silently and potentially repeatedly fail defragmentation, so issue a warning to the log when this particular failure occurs to let us know that xfs_fsr needs updating/fixing. To help identify how to improve xfs_fsr to avoid this issue, add trace points for the inodes being swapped so that we can determine why the swap was rejected and to confirm that the code is making the right decisions and modifications when swapping forks. A further complication is even when the swap is allowed to proceed when the fork offset is different between the two inodes then value for the maximum number of extents the data fork can hold can be wrong. Make sure these are also set correctly after the swap occurs. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
2010-01-15xfs: fix missing error check in xfs_rtfree_rangeDave Chinner
When xfs_rtfind_forw() returns an error, the block is returned uninitialised. xfs_rtfree_range() is not checking the error return, so could be using an uninitialised block number for modifying bitmap summary info. The problem was found by gcc when compiling the *userspace* libxfs code - it is an copy of the kernel code with the exact same bug. gcc gives an uninitialised variable warning on the userspace code but not on the kernel code. You gotta love the consistency (Mmmm, slightly chewy today!). Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2010-01-15xfs: fix stale inode flush avoidanceDave Chinner
When reclaiming stale inodes, we need to guarantee that inodes are unpinned before returning with a "clean" status. If we don't we can reclaim inodes that are pinned, leading to use after free in the transaction subsystem as transactions complete. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
generated by cgit (git 2.34.1) at 2025-09-12 16:45:15 +0000