David Woodhouse [Wed, 2 Dec 2009 11:00:05 +0000 (11:00 +0000)]
agp/intel-agp: Clear entire GTT on startup
Some BIOSes fail to initialise the GTT, which will cause DMA faults when
the IOMMU is enabled. We need to clear the whole thing to point at the
scratch page, not just the part that Linux is going to use.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
[anholt: Note that this may also help with stability in the presence of
driver bugs, by not drawing to memory we don't own] Signed-off-by: Eric Anholt <eric@anholt.net>
Jesse Barnes [Wed, 2 Dec 2009 21:42:53 +0000 (13:42 -0800)]
drm/i915: pageflip fixes
This patch brings the tree up to date with some fixes that were in a
more recent version of the page flipping patch you applied. It fixes
pre-965 flip support, removes a leftover hack that forced alignment,
and initializes the pipe & plane CRTC mappings.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Tue, 1 Dec 2009 19:56:30 +0000 (11:56 -0800)]
drm/i915: Fix DDC on some systems by clearing BIOS GMBUS setup.
This is a sync of a fix I made in the old UMS code. If the BIOS uses
the GMBUS and doesn't clear that setup, then our bit-banging I2C can
fail, leading to monitors not being detected.
Li Peng [Mon, 9 Nov 2009 04:51:22 +0000 (12:51 +0800)]
drm/i915: Fix sync to vblank when VGA output is turned off
In current vblank-wait implementation, if we turn off VGA output,
drm_wait_vblank will still wait on the disabled pipe until timeout,
because vblank on the pipe is assumed be enabled. This would cause
slow system response on some system such as moblin.
This patch resolve the issue by adding a drm helper function
drm_vblank_off which explicitly clear vblank_enabled[crtc], wake up
any waiting queue and save last vblank counter before turning off
crtc. It also slightly change drm_vblank_get to ensure that we will
will return immediately if trying to wait on a disabled pipe.
Signed-off-by: Li Peng <peng.li@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: hand-applied for conflicts with overlay changes] Signed-off-by: Eric Anholt <eric@anholt.net>
Adam Jackson [Fri, 20 Nov 2009 05:22:44 +0000 (13:22 +0800)]
drm/i915: disable the interrupt hotplug for integrated TV output
Otherwise, I'd get stuck in a loop where (afaict) output scan would
trigger a TV interrupt, which would trigger a scan, etc. TV load
detection not being the fastest thing in the world, X would process
requests very slowly.
Chris Wilson [Mon, 30 Nov 2009 01:08:56 +0000 (01:08 +0000)]
drm/i915: Don't update the render-clock for every bo.
Only update the render-clock on transition from busy to idle and vice
versa, or else we burn a significant percentage of the cpu just rewriting
the register -- not quite as power-friendly as intended ;-)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
Jesse Barnes [Thu, 19 Nov 2009 18:50:22 +0000 (10:50 -0800)]
drm: use page flip event to signal flip completion
We don't actually know which frame number the flip will complete on, so
userspace needs a specific flip notification to tell it when the last flip
completed.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Kristian Høgsberg <krh@bitplanet.net>
drm/i915: Add intel implementation of the pageflip ioctl
Acked-by: Jakob Bornecrantz <jakob@vmware.com> Acked-by: Thomas Hellström <thomas@shipmail.org> Review-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jesse "Orange Smoothie" Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Kristian Høgsberg <krh@bitplanet.net> Signed-off-by: Eric Anholt <eric@anholt.net>
Zhao Yakui [Tue, 24 Nov 2009 01:48:47 +0000 (09:48 +0800)]
drm/i915: Don't set up the LVDS if it isn't in the BIOS device table.
We not only check the device type, but also check the addin_offset. If the
addin_offset is zero, it won't be initialized.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
[anholt: hand-applied due to conflicts]
Zhao Yakui [Tue, 24 Nov 2009 01:48:46 +0000 (09:48 +0800)]
drm/i915: Don't set up DP ports that aren't in the BIOS device table.
Use the child device array to decide whether the given DP output should be
initialized. If the given DP port can't be found in child device array,
it is not present and won't be initialized.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Zhao Yakui [Tue, 24 Nov 2009 01:48:45 +0000 (09:48 +0800)]
drm/i915: Don't set up HDMI ports that aren't in the BIOS device table.
Use the child device array to decide whether the given HDMI output should be
initialized. If the given HDMI port can't be found in child device array,
it is not present and won't be initialized.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Zhao Yakui [Tue, 24 Nov 2009 01:48:44 +0000 (09:48 +0800)]
drm/i915: parse child device from VBT
On some laptops there is no HDMI/DP. But the xrandr still reports
several disconnected HDMI/display ports. In such case the user will be
confused.
>DVI1 disconnected (normal left inverted right x axis y axis)
>DP1 disconnected (normal left inverted right x axis y axis)
>DVI2 disconnected (normal left inverted right x axis y axis)
>DP2 disconnected (normal left inverted right x axis y axis)
>DP3 disconnected (normal left inverted right x axis y axis)
This patch set is to use the child device parsed in VBT to decide whether
the HDMI/DP/LVDS/TV should be initialized.
Parse the child device from VBT.
The device class type is also added for LFP, TV, HDMI, DP output.
drm/i915: Unregister i915_wedged debugfs entry using the right key
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
Shaohua Li [Wed, 18 Nov 2009 07:15:02 +0000 (15:15 +0800)]
drm/i915: fix gpio register detection logic for BIOS without VBT
if no VBT is present, crt_ddc_bus will be left at 0, and cause us
to use that for the GPIO register offset. That's never a valid register
offset, so let the "undefined" value be 0 instead of -1.
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
[anholt: clarified the commit message a bit]
Chris Wilson [Fri, 27 Nov 2009 13:06:56 +0000 (13:06 +0000)]
drm/i915: Avoid NULL dereference with component_only tv_modes
In commit d2d9f2324, the guard for a valid video mode was removed. This
caused the regression:
kernel crash during kms graphic boot on Intel GM4500 platform
https://bugzilla.redhat.com/show_bug.cgi?id=540218
This patches changes the logic slightly not to rely on a coupled
variable, but to just check whether the video_modes is valid before
dereferencing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Zhenyu Wang <zhenyu.z.wang@intel.com>
[ickle: Actually reference the correct bug report] Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Daniel Vetter [Mon, 30 Nov 2009 14:55:49 +0000 (15:55 +0100)]
drm/i915: fixup interrupted overlay switch off calls
When switching to interruptible sleeps in the overlay code, I've
forgotten to recover from interruptions at one site. This
resulted in the overlay still running when it should have been
switched off. This in turn caused a hang on resume because it
tried to disable the (not-running) overlay in preparation for the
resume modeset.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=24980 Tested-by: maximlevitsky@gmail.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eric Anholt <eric@anholt.net>
Shaohua Li [Wed, 14 Oct 2009 09:19:28 +0000 (17:19 +0800)]
drm/i915: remove Pineview EOS protection support
HW guys have an evaluation about the impact about EOS, and say the impact
is quite small, so they have removed EOS detection support. This patch
removes EOS feature.
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
[anholt: fixed up commit message for update that the feature's really gone]
Shaohua Li [Thu, 26 Nov 2009 06:22:41 +0000 (14:22 +0800)]
drm/i915: use msleep for intel_wait_for_vblank
20ms delay is quite big and the routine isn't called in atomic context.
better use msleep to let other tasks run. This can reduce cpu time used
by Xorg, so potentially boost boot.
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Zhenyu Wang [Wed, 25 Nov 2009 05:09:38 +0000 (13:09 +0800)]
drm/i915: Fix LVDS stability issue on Ironlake
In disable sequence, all output ports on PCH have to be disabled
before PCH transcoder, but LVDS port was left always enabled. This
one fixes that by disable LVDS port properly during pipe disable
process, and resolved stability issue seen on Ironlake. Also move
panel fitting disable time just after pipe disable to align with
the spec.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Zhao Yakui [Fri, 20 Nov 2009 03:24:17 +0000 (11:24 +0800)]
drm/i915: Check whether the LVDS downclock is found in VBT
Enumerate the LVDS panel timing info entry list in VBT to check whether
the LVDS downclock is found. If found, the downclock is also used to switch
dynamically between low and high frequency for LVDS.
Zhao Yakui [Fri, 20 Nov 2009 03:24:16 +0000 (03:24 +0000)]
drm/i915: Enable LVDS downclock feature through EDID.
If more than one mode with the same resolution defined in EDID has different
refresh rate, it is thought that the downclock is found for LVDS.
We will program the different FPx0/1 register so that we can select dynamically
between the low and high frequency.
On the g4x platform we will use the CxSR feature to switch the different
refresh rate if the LVDS downclock feature is supported.
Eric Anholt [Sun, 22 Nov 2009 02:49:37 +0000 (03:49 +0100)]
drm/i915: Replace a calloc followed by copying data over it with malloc.
Execbufs involve quite a bit of payload, to the extent that cache misses
show up in the profiles here, and a suspicion that some of those cachelines
may get evicted and then reloaded in the subsequent copy.
This is still abstracted like drm_calloc_large since we want to check for
size overflow, and because we want to choose between kmalloc and vmalloc
on the fly. cairo's interface for malloc-with-calloc's-args was used as
the model.
This adds a page flipping ioctl to the KMS API. The ioctl takes an fb ID
and a ctrc ID and flips the crtc to the given fb at the next vblank.
The ioctl returns immediately but the flip doesn't happen until after
any rendering that's currently queued up against the new framebuffer
is done. After submitting a page flip, any execbuffer involving the
old front buffer will block until the flip is completed.
Optionally, a vblank event can be generated when the swap eventually
happens.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
Andres Salomon [Tue, 17 Nov 2009 22:41:25 +0000 (14:41 -0800)]
drm: check return values in drm_version
In drm_version, actually check the results from function calls so that
we're not potentially passing garbage back to userspace.
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Andres Salomon [Tue, 17 Nov 2009 22:41:24 +0000 (14:41 -0800)]
drm: replace DRM_COPY macro w/ a function
Don't inline it; the compiler can figure it out. Comments added that are
based upon my interpretation of the code. Hopefully they're correct. :)
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Andres Salomon [Tue, 17 Nov 2009 22:41:23 +0000 (14:41 -0800)]
drm: kill more unused DRM macros
There are a few more macros in drmP.h that are unused; DRM_GET_PRIV_SAREA,
DRM_ARRAY_SIZE, and DRM_WAITCOUNT can go away completely.
Unfortunately, DRM_COPY is still used in one place, but we can at least
move it to where it's used. It's an awful looking macro..
[akpm: fix overeagerness] Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Andres Salomon [Tue, 17 Nov 2009 22:41:23 +0000 (14:41 -0800)]
drm: kill some unused DRM_PROC macros from drmP.h
i915_gem_proc.c appears to have been the last user of the DRM_PROC_*
macros, and it has gone away. The macros should die as well.
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Jesse Barnes [Tue, 10 Nov 2009 08:21:25 +0000 (08:21 +0000)]
drm: when queuing an event with NEXTONMISS, return queued sequence to userspace
If we queue a vblank event but miss it, we should return the actual
sequence number we queued to userspace, so its event handling function
will know which event to look for.
Acked-by: Kristian Høgsberg <krh@bitplanet.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
drm: Add async event synchronization for drmWaitVblank
This patch adds a new flag to the drmWaitVblank ioctl, which asks the drm
to return immediately and notify userspace when the specified vblank sequence
happens by sending an event back on the drm fd.
The event mechanism works with the other flags supported by the ioctls,
specifically, the vblank sequence can be specified relatively or absolutely,
and works for primary and seconday crtc.
The signal field of the vblank request is used to provide user data,
which will be sent back to user space in the vblank event.
Signed-off-by: Kristian Høgsberg <krh@redhat.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Jesse Barnes [Tue, 10 Nov 2009 08:21:25 +0000 (08:21 +0000)]
drm: when queuing an event with NEXTONMISS, return queued sequence to userspace
If we queue a vblank event but miss it, we should return the actual
sequence number we queued to userspace, so its event handling function
will know which event to look for.
Acked-by: Kristian Høgsberg <krh@bitplanet.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Mon, 9 Nov 2009 17:58:31 +0000 (09:58 -0800)]
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c: Add an interface to lock/unlock an I2C bus segment
i2c-piix4: Modify code name SB900 to Hudson-2
Linus Torvalds [Mon, 9 Nov 2009 17:57:02 +0000 (09:57 -0800)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md/raid5: make sure curr_sync_completes is uptodate when reshape starts
md: don't clear endpoint for resync when resync is interrupted.
Hugh Dickins [Mon, 9 Nov 2009 15:58:23 +0000 (15:58 +0000)]
ksm: cond_resched in unstable tree
KSM needs a cond_resched() for CONFIG_PREEMPT_NONE, in its unbounded
search of the unstable tree. The stable tree cases already have one,
and originally there was one down inside get_user_pages();
but I missed it when I converted to follow_page() instead.
Linus Torvalds [Mon, 9 Nov 2009 17:52:55 +0000 (09:52 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix missing cleanup of gc cache on error cases
nilfs2: fix kernel oops in error case of nilfs_ioctl_move_blocks
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
net/fsl_pq_mdio: add module license GPL
can: fix WARN_ON dump in net/core/rtnetlink.c:rtmsg_ifinfo()
can: should not use __dev_get_by_index() without locks
hisax: remove bad udelay call to fix build error on ARM
ipip: Fix handling of DF packets when pmtudisc is OFF
qlge: Set PCIe reset type for EEH to fundamental.
qlge: Fix early exit from mbox cmd complete wait.
ixgbe: fix traffic hangs on Tx with ioatdma loaded
ixgbe: Fix checking TFCS register for TXOFF status when DCB is enabled
ixgbe: Fix gso_max_size for 82599 when DCB is enabled
macsonic: fix crash on PowerBook 520
NET: cassini, fix lock imbalance
ems_usb: Fix byte order issues on big endian machines
be2net: Bug fix to send config commands to hardware after netdev_register
be2net: fix to set proper flow control on resume
netfilter: xt_connlimit: fix regression caused by zero family value
rt2x00: Don't queue ieee80211 work after USB removal
Revert "ipw2200: fix oops on missing firmware"
decnet: netdevice refcount leak
netfilter: nf_nat: fix NAT issue in 2.6.30.4+
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Move of_set_property_mutex acquisition outside of devtree_lock grab.
sparc64: replace parentheses in pmul()
sparc64: Add a comment about why we only use certain memory barriers these days.
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: don't use CIFSGetSrvInodeNumber in is_path_accessible
cifs: clean up handling when server doesn't consistently support inode numbers
Linus Torvalds [Mon, 9 Nov 2009 17:49:58 +0000 (09:49 -0800)]
Merge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Replace old style lock initializer
sh: Account for cache aliases in flush_icache_range()
sh: unwinder: Fix up invalid PC refetch in dwarf unwinder.
serial: sh-sci: disable callback typo fix
Linus Torvalds [Mon, 9 Nov 2009 17:30:14 +0000 (09:30 -0800)]
Merge branch 'for-linus' of 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: snd-aica: declare MODULE_FIRMWARE
ALSA: hda - Don't initialize CORB/RIRB for single_cmd mode
ALSA: usb-audio: fix combine_word problem
sound: Replace old style lock initializer
ASoC: S3C64XX I2S: Enable audio-bus clock
ASoC: OMAP: Don't try to set unsupported OMAP_DMA_DATA_BURST_16 on OMAP1
ALSA: hda, move hp_bseries_system
sound: Use KERN_WARNING instead of KERN_WARN, which does not exist
ALSA: intel8x0: Mute External Amplifier by default for another Sony model
ALSA: hda - Add OLPC XO-1.5 PCI ID
ALSA: hda - Enable GPIO control for mute LED on HP systems
Linus Torvalds [Mon, 9 Nov 2009 17:28:42 +0000 (09:28 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: sleep: another HP/Compaq DMI entries for init_set_sci_en_on_resume
ACPI: add DMI entry for SCI_EN resume quirk on HP dv4
thermal: sysfs-api.txt - document passive attribute for thermal zones
thermal: sysfs-api.txt - reformat for improved readability
acpi: thermal: Add EOL to the trip_point_N_type strings
ACPI: Move dereference after NULL test
ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."
ACPI: add __cpuinit to acpi_processor_add()
acpi-power-meter: Don't leak ACPI error codes to userspace
eeepc-laptop: don't enable camera at startup if it's already on.
Revert "eeepc-laptop: Prevent a panic when disabling RT2860 wireless when associated"
ACPI: clean up video.c boundary checks and types
Matt Fleming [Thu, 5 Nov 2009 23:14:39 +0000 (23:14 +0000)]
sh: Account for cache aliases in flush_icache_range()
The icache may also contain aliases so we must account for them just
like we do when manipulating the dcache. We usually get away with
aliases in the icache because the instructions that are read from memory
are read-only, i.e. they never change. However, the place where this
bites us is when the code has been modified.
Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Ryusuke Konishi [Sun, 8 Nov 2009 03:09:24 +0000 (12:09 +0900)]
nilfs2: fix missing cleanup of gc cache on error cases
This fixes an -rc1 regression brought by the commit: 1cf58fa840472ec7df6bf2312885949ebb308853 ("nilfs2: shorten freeze
period due to GC in write operation v3").
Although the patch moved out a function call of
nilfs_ioctl_move_blocks() to nilfs_ioctl_clean_segments() from
nilfs_ioctl_prepare_clean_segments(), it didn't move corresponding
cleanup job needed for the error case.
This will move the missing cleanup job to the destination function.
Ryusuke Konishi [Sat, 7 Nov 2009 09:45:16 +0000 (18:45 +0900)]
nilfs2: fix kernel oops in error case of nilfs_ioctl_move_blocks
This fixes a kernel oops reported by Markus Trippelsdorf in the email
titled "[NILFS users] kernel Oops while running nilfs_cleanerd".
The oops was caused by a bug of error path in
nilfs_ioctl_move_blocks() function, which was inlined in
nilfs_ioctl_clean_segments().
nilfs_ioctl_move_blocks checks duplication of blocks which will be
moved in garbage collection. But, the check should have be done
within nilfs_ioctl_move_inode_block() to prevent list corruption among
buffers storing the target blocks.
To fix the kernel oops, this moves forward the duplication check
before the list insertion.
I also tested this for stable trees [2.6.30, 2.6.31].
can: fix WARN_ON dump in net/core/rtnetlink.c:rtmsg_ifinfo()
On older kernels, e.g. 2.6.27, a WARN_ON dump in rtmsg_ifinfo()
is thrown when the CAN device is registered due to insufficient
skb space, as reported by various users. This patch adds the
rtnl_link_ops "get_size" to fix the problem. I think this patch
is required for more recent kernels as well, even if no WARN_ON
dumps are triggered. Maybe we also need "get_xstats_size" for
the CAN xstats.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 6 Nov 2009 00:23:01 +0000 (00:23 +0000)]
can: should not use __dev_get_by_index() without locks
bcm_proc_getifname() is called with RTNL and dev_base_lock
not held. It calls __dev_get_by_index() without locks, and
this is illegal (might crash)
Close the race by holding dev_base_lock and copying dev->name
in the protected section.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Jean Delvare [Sat, 7 Nov 2009 12:10:46 +0000 (13:10 +0100)]
i2c: Add an interface to lock/unlock an I2C bus segment
Some drivers need to be able to prevent access to an I2C bus segment
for a specific period of time. Add an interface for them to do so
without twiddling with i2c-core internals.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Takashi Iwai [Sat, 7 Nov 2009 08:49:04 +0000 (09:49 +0100)]
ALSA: hda - Don't initialize CORB/RIRB for single_cmd mode
So far, CORB/RIRB still remains even if the driver is switched to the
single_cmd mode. The specification says that this should be disabled,
but I hoped this isn't the case; indeed most devices worked together with
CORB/RIRB.
However, Poulsbo (US15W) seems problematic with this setup, and it
requires to disable CORB/RIRB when single_cmd is used.
Now this patch disables CORB/RIRB initialization when the single_cmd
mode is used. Also the unsolicited event is disabled because it can't
work without RIRB.
Fix combine_word problem where first octet is not
read properly. The only affected place seems to be the
INPUT_TERMINAL type. Before now, sound controls can be created
with the output terminal's name which is a fallback mechanism
used only for unknown input terminal types. For example,
Line can wrongly appear as Speaker. After the change it
should appear as Line.
The side effect of this change can be that users
can expect the wrong control name in their scripts or
programs while now we return the correct one.
Probably, these defines should use get_unaligned_le16 and
friends.
hisax: remove bad udelay call to fix build error on ARM
The hisax ISDN driver fails to build on ARM with CONFIG_HISAX_ELSA:
| drivers/built-in.o: In function `modem_set_dial':
| drivers/isdn/hisax/elsa_ser.c:535: undefined reference to `__bad_udelay'
| drivers/isdn/hisax/elsa_ser.c:544: undefined reference to `__bad_udelay'
| drivers/built-in.o: In function `modem_set_init':
| drivers/isdn/hisax/elsa_ser.c:486: undefined reference to `__bad_udelay'
| [...]
According to the comment in arch/arm/include/asm/delay.h, __bad_udelay
is specifically designed on ARM to produce a build failure when udelay
is called with a value > 2000.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Fri, 6 Nov 2009 10:37:41 +0000 (10:37 +0000)]
ipip: Fix handling of DF packets when pmtudisc is OFF
RFC 2003 requires the outer header to have DF set if DF is set
on the inner header, even when PMTU discovery is off for the
tunnel. Our implementation does exactly that.
For this to work properly the IPIP gateway also needs to engate
in PMTU when the inner DF bit is set. As otherwise the original
host would not be able to carry out its PMTU successfully since
part of the path is only visible to the gateway.
Unfortunately when the tunnel PMTU discovery setting is off, we
do not collect the necessary soft state, resulting in blackholes
when the original host tries to perform PMTU discovery.
This problem is not reproducible on the IPIP gateway itself as
the inner packet usually has skb->local_df set. This is not
correctly cleared (an unrelated bug) when the packet passes
through the tunnel, which allows fragmentation to occur. For
hosts behind the IPIP gateway it is readily visible with a simple
ping.
This patch fixes the problem by performing PMTU discovery for
all packets with the inner DF bit set, regardless of the PMTU
discovery setting on the tunnel itself.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Don Skidmore [Fri, 6 Nov 2009 12:56:20 +0000 (12:56 +0000)]
ixgbe: fix traffic hangs on Tx with ioatdma loaded
When ioatdma was loaded we we were unable to transmit traffic. We weren't
using the correct registers in ixgbe_update_tx_dca for 82599 systems.
Likewise in ixgbe_configure_tx() we weren't disabling the arbiter before
modifying MTQC.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yi Zou [Fri, 6 Nov 2009 12:56:00 +0000 (12:56 +0000)]
ixgbe: Fix checking TFCS register for TXOFF status when DCB is enabled
When DCB is enabled, the ixgbe_check_tx_hang() should check the corresponding
TC's TXOFF in TFCS based on the TC that the tx ring belongs to. Adds a
function to map from the tx_ring hw reg_idx to the correspodning TC and read
TFCS accordingly.
Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yi Zou [Fri, 6 Nov 2009 12:55:38 +0000 (12:55 +0000)]
ixgbe: Fix gso_max_size for 82599 when DCB is enabled
The 32k gso_max_size when DCB is enabled is for 82598 only, not for 82599.
Signed-off-by: Yi Zou <yi.zou@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Finn Thain [Tue, 3 Nov 2009 03:42:40 +0000 (03:42 +0000)]
macsonic: fix crash on PowerBook 520
No-one seems to know where the PowerBook 500 series store their ethernet
MAC addresses. So, rather than crash, use a MAC address from the SONIC
CAM. Failing that, generate a random one.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Ajit Khaparde [Fri, 6 Nov 2009 02:07:32 +0000 (02:07 +0000)]
be2net: Bug fix to send config commands to hardware after netdev_register
Sending config commands to be2 hardware before netdev_register is
completed, is sometimes causing the async link notification to arrive
even before the driver is ready to handle it. The commands for vlan
config and flow control settings can infact wait till be_open.
This patch takes care of that.
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ajit Khaparde [Fri, 6 Nov 2009 02:06:59 +0000 (02:06 +0000)]
be2net: fix to set proper flow control on resume
If be2 goes into suspend after a user changes the flow control settings,
we are not programming them back after resume. This patch takes care of it.
We now get the flow control settings before going to suspend mode and
then apply them during resume.
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Engelhardt [Sat, 7 Nov 2009 02:08:32 +0000 (18:08 -0800)]
netfilter: xt_connlimit: fix regression caused by zero family value
Commit v2.6.28-rc1~717^2~109^2~2 was slightly incomplete; not all
instances of par->match->family were changed to par->family.
References: http://bugzilla.netfilter.org/show_bug.cgi?id=610 Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Layton [Fri, 6 Nov 2009 19:18:49 +0000 (14:18 -0500)]
cifs: don't use CIFSGetSrvInodeNumber in is_path_accessible
Because it's lighter weight, CIFS tries to use CIFSGetSrvInodeNumber to
verify the accessibility of the root inode and then falls back to doing a
full QPathInfo if that fails with -EOPNOTSUPP. I have at least a report
of a server that returns NT_STATUS_INTERNAL_ERROR rather than something
that translates to EOPNOTSUPP.
Rather than trying to be clever with that call, just have
is_path_accessible do a normal QPathInfo. That call is widely
supported and it shouldn't increase the overhead significantly.
Cc: Stable <stable@kernel.org> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Jeff Layton [Fri, 6 Nov 2009 19:18:29 +0000 (14:18 -0500)]
cifs: clean up handling when server doesn't consistently support inode numbers
It's possible that a server will return a valid FileID when we query the
FILE_INTERNAL_INFO for the root inode, but then zeroed out inode numbers
when we do a FindFile with an infolevel of
SMB_FIND_FILE_ID_FULL_DIR_INFO.
In this situation turn off querying for server inode numbers, generate a
warning for the user and just generate an inode number using iunique.
Once we generate any inode number with iunique we can no longer use any
server inode numbers or we risk collisions, so ensure that we don't do
that in cifs_get_inode_info either.
Cc: Stable <stable@kernel.org> Reported-by: Timothy Normand Miller <theosib@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
projects / mirror_ubuntu-jammy-kernel.git / log