Pull i2c embedded fixes from Wolfram Sang:
"The last bunch of (typical) i2c-embedded driver fixes for 3.6.
Also update the MAINTAINERS file to point to my tree since people keep
asking where to find their patches."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: algo: pca: Fix mode selection for PCA9665
MAINTAINERS: fix tree for current i2c-embedded development
i2c: mxs: correctly setup speed for non devicetree
i2c: pnx: Fix read transactions of >= 2 bytes
i2c: pnx: Fix bit definitions
shared memory mapping is dirtied and unmapped. The lower file was being
released when the eCryptfs file was closed and the dirtied pages could not be
written out.
- Adds a call to the lower filesystem's ->flush() from ecryptfs_flush().
- Fixes a regression, introduced in 2.6.39, when a file is renamed on top of
another file. The target file's inode was not being evicted and the space
taken by the file was not reclaimed until eCryptfs was unmounted.
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Merge tag 'ecryptfs-3.6-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
- Fixes a regression, introduced in 3.6-rc1, when a file is closed
before its shared memory mapping is dirtied and unmapped. The lower
file was being released when the eCryptfs file was closed and the
dirtied pages could not be written out.
- Adds a call to the lower filesystem's ->flush() from
ecryptfs_flush().
- Fixes a regression, introduced in 2.6.39, when a file is renamed on
top of another file. The target file's inode was not being evicted
and the space taken by the file was not reclaimed until eCryptfs was
unmounted.
* tag 'ecryptfs-3.6-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: Copy up attributes of the lower target inode after rename
eCryptfs: Call lower ->flush() from ecryptfs_flush()
eCryptfs: Write out all dirty pages just before releasing the lower file
Pull one more DMA-mapping fix from Marek Szyprowski:
"This patch fixes very subtle bug (typical off-by-one error) which
might appear in very rare circumstances."
* 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
arm: mm: fix DMA pool affiliation check
Pull drm fixes from Dave Airlie:
"I realise this a bit bigger than I would want at this point.
Exynos is a large chunk, I got them to half what they wanted already,
and hey its ARM based, so not going to hurt many people.
Radeon has only two fixes, but the PLL fixes were a bit bigger, but
required for a lot of scenarios, the fence fix is really urgent.
vmwgfx: I've pulled in a dumb ioctl support patch that I was going to
shove in later and cc stable, but we need it asap, its mainly to stop
mesa growing a really ugly dependency in userspace to run stuff on
vmware, and if I don't stick it in the kernel now, everyone will have
to ship ugly userspace libs to workaround it.
nouveau: single urgent fix found in F18 testing, causes X to not start
properly when f18 plymouth is used
i915: smattering of fixes and debug quieting
gma500: single regression fix
So as I said a bit large, but its fairly well scattered and its all
stuff I'll be shipping in F18's 3.6 kernel."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (26 commits)
drm/nouveau: fix booting with plymouth + dumb support
drm/radeon: make 64bit fences more robust v3
drm/radeon: rework pll selection (v3)
drm: Drop the NV12M and YUV420M formats
drm/exynos: remove DRM_FORMAT_NV12M from plane module
drm/exynos: fix double call of drm_prime_(init/destroy)_file_private
drm/exynos: add dummy support for dmabuf-mmap
drm/exynos: Add missing braces around sizeof in exynos_mixer.c
drm/exynos: Add missing braces around sizeof in exynos_hdmi.c
drm/exynos: Make g2d_pm_ops static
drm/exynos: Add dependency for G2D in Kconfig
drm/exynos: fixed page align bug.
drm/exynos: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1]
drm/exynos: Use devm_* functions in exynos_drm_g2d.c file
drm/exynos: Use devm_kzalloc in exynos_drm_hdmi.c file
drm/exynos: Use devm_kzalloc in exynos_drm_vidi.c file
drm/exynos: Remove redundant check in exynos_drm_fimd.c file
drm/exynos: Remove redundant check in exynos_hdmi.c file
vmwgfx: add dumb ioctl support
gma500: Fix regression on Oaktrail devices
...
Pull perf fixes from Ingo Molnar:
"This tree includes various fixes"
Ingo really needs to improve on the whole "explain git pull" part.
"Various fixes" indeed.
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled
perf/x86: Enable Intel Cedarview Atom suppport
perf_event: Switch to internal refcount, fix race with close()
oprofile, s390: Fix uninitialized memory access when writing to oprofilefs
perf/x86: Fix microcode revision check for SNB-PEBS
Pull a core sparse warning fix from Ingo Molnar
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mm/memblock: Use NULL instead of 0 for pointers
This reverts commit 5986802c2f.
Both paths are not error paths but regular cases where non-qgroup
subvols are involved.
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Pull networking fixes from David Miller:
1) Use after free and new device IDs in bluetooth from Andre Guedes,
Yevgeniy Melnichuk, Gustavo Padovan, and Henrik Rydberg.
2) Fix crashes with short packet lengths and VLAN in pktgen, from
Nishank Trivedi.
3) mISDN calls flush_work_sync() with locks held, fix from Karsten
Keil.
4) Packet scheduler gred parameters are reported to userspace
improperly scaled, and WRED idling is not performed correctly. All
from David Ward.
5) Fix TCP socket refcount problem in ipv6, from Julian Anastasov.
6) ibmveth device has RX queue alignment requirements which are not
being explicitly met resulting in sporadic failures, fix from
Santiago Leon.
7) Netfilter needs to take care when interpreting sockets attached to
socket buffers, they could be time-wait minisockets. Fix from Eric
Dumazet.
8) sock_edemux() has the same issue as netfilter did in #7 above, fix
from Eric Dumazet.
9) Avoid infinite loops in CBQ scheduler with some configurations, from
Eric Dumazet.
10) Deal with "Reflection scan: an Off-Path Attack on TCP", from Jozsef
Kadlecsik.
11) SCTP overcharges socket for TX packets, fix from Thomas Graf.
12) CODEL packet scheduler should not reset it's state every time it
builds a new flow, fix from Eric Dumazet.
13) Fix memory leak in nl80211, from Wei Yongjun.
14) NETROM doesn't check skb_copy_datagram_iovec() return values, from
Alan Cox.
15) l2tp ethernet was using sizeof(ETH_HLEN) instead of plain ETH_HLEN,
oops. From Eric Dumazet.
16) Fix selection of ath9k chips on which PA linearization and AM2PM
predistoration are used, from Felix Fietkau.
17) Flow steering settings in mlx4 driver need to be validated properly,
from Hadar Hen Zion.
18) bnx2x doesn't show the correct link duplex setting, from Yaniv
Rosner.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (75 commits)
pktgen: fix crash with vlan and packet size less than 46
bnx2x: Add missing afex code
bnx2x: fix registers dumped
bnx2x: correct advertisement of pause capabilities
bnx2x: display the correct duplex value
bnx2x: prevent timeouts when using PFC
bnx2x: fix stats copying logic
bnx2x: Avoid sending multiple statistics queries
net: qmi_wwan: call subdriver with control intf only
net_sched: gred: actually perform idling in WRED mode
net_sched: gred: fix qave reporting via netlink
net_sched: gred: eliminate redundant DP prio comparisons
net_sched: gred: correct comment about qavg calculation in RIO mode
mISDN: Fix wrong usage of flush_work_sync while holding locks
netfilter: log: Fix log-level processing
net-sched: sch_cbq: avoid infinite loop
net: qmi_wwan: fix Gobi device probing for un2430
net: fix net/core/sock.c build error
ixp4xx_hss: fix build failure due to missing linux/module.h inclusion
caif: move the dereference below the NULL test
...
Here are a number of USB patches, a bit more than I normally like this
late in the -rc series, but given people's vacations (myself included),
and the kernel summit, it seems to have happened this way.
All are tiny, but they add up. A number of gadget and xhci fixes, and a
few new device ids. All have been tested in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here are a number of USB patches, a bit more than I normally like this
late in the -rc series, but given people's vacations (myself
included), and the kernel summit, it seems to have happened this way.
All are tiny, but they add up. A number of gadget and xhci fixes, and
a few new device ids. All have been tested in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
usb: chipidea: udc: don't stall endpoint if request list is empty in isr_tr_complete_low
usb: chipidea: cleanup dma_pool if udc_start() fails
usb: chipidea: udc: fix error path in udc_start()
usb: chipidea: udc: add pullup fuction, needed by the uvc gadget
usb: chipidea: udc: fix setup of endpoint maxpacket size
USB: option: replace ZTE K5006-Z entry with vendor class rule
EHCI: Update qTD next pointer in QH overlay region during unlink
USB: cdc-wdm: fix wdm_find_device* return value
USB: ftdi_sio: do not claim CDC ACM function
usb: dwc3: gadget: fix pending isoc handling
usb: renesas_usbhs: fixup DMA transport data alignment
usb: gadget: at91udc: Don't check for ep->ep.desc
usb: gadget: at91udc: don't overwrite driver data
usb: dwc3: core: fix incorrect usage of resource pointer
usb: musb: musbhsdma: fix IRQ check
usb: musb: tusb6010: fix error path in tusb_probe()
usb: musb: host: fix for musb_start_urb Oops
usb: gadget: dummy_hcd: add support for USB_DT_BOS on rh
usb: gadget: dummy_hcd: fixup error probe path
usb: gadget: s3c-hsotg.c: fix error return code
...
Here are 2 tiny patches for a serial driver to resolve issues that
people have reported with the 3.6-rc tree.
Both of these have been in the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY fixes from Greg Kroah-Hartman:
"Here are 2 tiny patches for a serial driver to resolve issues that
people have reported with the 3.6-rc tree.
Both of these have been in the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: imx: don't reinit clock in imx_setup_ufcr()
tty: serial: imx: console write routing is unsafe on SMP
Here are a few staging tree fixes for problems that have been reported.
Nothing major, just a number of tiny driver fixes. All of these have
been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree fixes from Greg Kroah-Hartman:
"Here are a few staging tree fixes for problems that have been
reported.
Nothing major, just a number of tiny driver fixes. All of these have
been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
drm/omap: add more new timings fields
drm/omap: update for interlaced
staging: r8712u: fix bug in r8712_recv_indicatepkt()
staging: zcache: fix cleancache race condition with shrinker
Staging: Android alarm: IOCTL command encoding fix
staging: vt6656: [BUG] - Failed connection, incorrect endian.
staging: ozwpan: fix memcmp() test in oz_set_active_pd()
staging: wlan-ng: Fix problem with wrong arguments
staging: comedi: das08: Correct AO output for das08jr-16-ao
staging: comedi: das08: Correct AI encoding for das08jr-16-ao
staging: comedi: das08: Fix PCI ref count
staging: comedi: amplc_pci230: Fix PCI ref count
staging: comedi: amplc_pc263: Fix PCI ref count
staging: comedi: amplc_pc236: Fix PCI ref count
staging: comedi: amplc_dio200: Fix PCI ref count
staging: comedi: amplc_pci224: Fix PCI ref count
drivers/iio/adc/at91_adc.c: adjust inconsistent IS_ERR and PTR_ERR
staging iio: fix potential memory leak in lis3l02dq_ring.c
staging:iio: prevent divide by zero bugs
Here is one fix for 3.6-rc6 for the kobject.h file.
It fixes a reported oops if CONFIG_HOTPLUG is disabled. It's been in
the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg Kroah-Hartman:
"Here is one fix for 3.6-rc6 for the kobject.h file.
It fixes a reported oops if CONFIG_HOTPLUG is disabled. It's been in
the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kobject: fix oops with "input0: bad kobj_uevent_env content in show_uevent()"
We already use them for openat() and friends, but fstat() also wants to
be able to use O_PATH file descriptors. This should make it more
directly comparable to the O_SEARCH of Solaris.
Note that you could already do the same thing with "fstatat()" and an
empty path, but just doing "fstat()" directly is simpler and faster, so
there is no reason not to just allow it directly.
See also commit 332a2e1244, which did the same thing for fchdir, for
the same reasons.
Reported-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org # O_PATH introduced in 3.0+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
commit a606dac368 adds support to link
devices which have _PRx, if a device does not have _PRx, a warning
message will be printed.
This commit is for ZPODD on Intel ZPODD capable platforms, on other
platforms, it has no problem if there is no power resource for this
device, so a warning here is not appropriate, change it to debug.
Reported-by: Borislav Petkov <bp@amd64.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Commit 3236b2d469 ("IB/qib: MADs with misset M_Keys should return
failure") introduced a return code assignment that unfortunately
introduced an unconditional exit for the routine due to missing braces.
This patch adds the braces to correct the original patch.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix CQE expansion of unsignaled WQE -- don't expand the CQE when the
WQE index of the completed CQE matches with last pending WQE (tail) in
the queue.
Signed-off-by: Parav Pandit <parav.pandit@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
After calling into the lower filesystem to do a rename, the lower target
inode's attributes were not copied up to the eCryptfs target inode. This
resulted in the eCryptfs target inode staying around, rather than being
evicted, because i_nlink was not updated for the eCryptfs inode. This
also meant that eCryptfs didn't do the final iput() on the lower target
inode so it stayed around, as well. This would result in a failure to
free up space occupied by the target file in the rename() operation.
Both target inodes would eventually be evicted when the eCryptfs
filesystem was unmounted.
This patch calls fsstack_copy_attr_all() after the lower filesystem
does its ->rename() so that important inode attributes, such as i_nlink,
are updated at the eCryptfs layer. ecryptfs_evict_inode() is now called
and eCryptfs can drop its final reference on the lower inode.
http://launchpad.net/bugs/561129
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Tested-by: Colin Ian King <colin.king@canonical.com>
Cc: <stable@vger.kernel.org> [2.6.39+]
Since eCryptfs only calls fput() on the lower file in
ecryptfs_release(), eCryptfs should call the lower filesystem's
->flush() from ecryptfs_flush().
If the lower filesystem implements ->flush(), then eCryptfs should try
to flush out any dirty pages prior to calling the lower ->flush(). If
the lower filesystem does not implement ->flush(), then eCryptfs has no
need to do anything in ecryptfs_flush() since dirty pages are now
written out to the lower filesystem in ecryptfs_release().
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Fixes a regression caused by:
821f749 eCryptfs: Revert to a writethrough cache model
That patch reverted some code (specifically, 32001d6f) that was
necessary to properly handle open() -> mmap() -> close() -> dirty pages
-> munmap(), because the lower file could be closed before the dirty
pages are written out.
Rather than reapplying 32001d6f, this approach is a better way of
ensuring that the lower file is still open in order to handle writing
out the dirty pages. It is called from ecryptfs_release(), while we have
a lock on the lower file pointer, just before the lower file gets the
final fput() and we overwrite the pointer.
https://launchpad.net/bugs/1047261
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Artemy Tregubenko <me@arty.name>
Tested-by: Artemy Tregubenko <me@arty.name>
Tested-by: Colin Ian King <colin.king@canonical.com>
YAMON requires and enforces the RTC Data Mode (Register B, DM bit) to
binary, that is the bit is set every time the board goes through the
firmware bootstrap sequence. Likewise its calendar manipulation commands
interpret or set the RTC registers unconditionally as binary, never
actually checking what the value of the DM bit is, under the (correct)
assumption that it has been previously set, to indicate the binary mode.
A change to Linux a while ago however introduced a platform-specific
tweak that clears that bit and therefore forces the data mode to BCD.
This causes clock corruption and misinterpretation that has to be fixed up
by user-mode tools in system startup scripts as the initial clock is often
incorrect according to the BCD interpretation forced.
This change removes the hack; a comment included refers to alarm code,
but even if it was broken at one point by requiring the BCD mode, it
should have been trivially corrected and even if not, given how rarely the
alarm feature is used, that was not really a reasonable justification to
break the system clock that is indeed used by virtually everything. And
either way the alarm code has been since fixed anyway.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4336/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
When using the commands below to write some data to a virtio-scsi LUN of the
QEMU guest(32-bit) with 1G physical memory(qemu -m 1024), the qemu will crash.
# sudo mkfs.ext4 /dev/sdb (/dev/sdb is the virtio-scsi LUN.)
# sudo mount /dev/sdb /mnt
# dd if=/dev/zero of=/mnt/file bs=1M count=1024
In current implementation, sg_set_buf is called to add buffers to sg list which
is put into the virtqueue eventually. But if there are some HighMem pages in
table->sgl you can not get virtual address by sg_virt. So, sg_virt(sg_elem) may
return NULL value. This will cause QEMU exit when virtqueue_map_sg is called
in QEMU because an invalid GPA is passed by virtqueue.
Two solutions are discussed here:
http://lkml.indiana.edu/hypermail/linux/kernel/1207.3/00675.html
Finally, value assignment approach was adopted because:
Value assignment creates a well-formed scatterlist, because the termination
marker in source sg_list has been set in blk_rq_map_sg(). The last entry of the
source sg_list is just copied to the the last entry in destination list. Note
that, for now, virtio_ring does not care about the form of the scatterlist and
simply processes the first out_num + in_num consecutive elements of the sg[]
array.
I have tested the patch on my workstation. QEMU would not crash any more.
Cc: <stable@vger.kernel.org> # 3.4: 4fe74b1: [SCSI] virtio-scsi: SCSI driver
Signed-off-by: Wang Sen <senwang@linux.vnet.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The code currently always selects turbo mode for PCA9665, no matter which
clock frequency is configured. This is because it compares the clock frequency
against constants reflecting (boundary / 100). Compare against real boundary
frequencies to fix the problem.
Signed-off-by: Thomas Kavanagh <tkavanagh@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Guide people to where their patches can be found these days.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Dooks <ben-linux@fluff.org>
We noticed a plymouth bug on Fedora 18, and I then
noticed this stupid thinko, fixing it fixed the problem
with plymouth.
Cc: stable@vger.kernel.org
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Avoid the construction of a malformed DMA request sent to
the DMA controller.
Log message is for debug only because this condition is unlikely to
append and may only trigger at driver development time.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Stable <stable@vger.kernel.org> [2.6.31+]
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
s/dma_memcpy/slave_sg/ and it is sg length that we are
talking about.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Stable <stable@vger.kernel.org> [2.6.31+]
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Alex writes:
This is the current set of radeon fixes for 3.6. Two small fixes:
- fix the fence issues introduced in 3.5 with 64-bit fences
- PLL fix for multiple DP heads
* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: make 64bit fences more robust v3
drm/radeon: rework pll selection (v3)
This patch adds on the fixes done in commits 89dd86db78 ("mlx4_core:
Allow large mlx4_buddy bitmaps") and 3de819e6b6 ("mlx4_core: Fix
integer overflow issues around MTT table") so that memory registration
of up to 8TB (log_num_mtt=31) finally works.
It fixes integer overflows in a few mlx4_table_yyy routines in icm.c
by using a u64 intermediate variable, and int/uint issues that caused
table indexes to become nagive by setting some variables to be u32
instead of int. These problems cause crashes when a user attempted to
register > 512GB of RAM.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Commit 0090def("ACPI: Add interface to register/unregister device
to/from power resources") used resource_lock to protect the devices list
that relies on power resource. It caused a mutex dead lock, as below
acpi_power_on ---> lock resource_lock
__acpi_power_on
acpi_power_on_device
acpi_power_get_inferred_state
acpi_power_get_list_state ---> lock resource_lock
This patch adds a new mutex "devices_lock" to protect the devices list
and calls acpi_power_on_device in acpi_power_on, instead of
__acpi_power_on, after the resource_lock is released.
[rjw: Changed data type of a boolean variable to bool.]
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
It turns out that there are ACPI BIOSes defining device objects with
_PSx and without either _PSC or _PRx. For devices corresponding to
those ACPI objetcs __acpi_bus_get_power() returns ACPI_STATE_UNKNOWN
and their initial power states are regarded as unknown as a result.
If such a device is a parent of another power-manageable device, the
child cannot be put into a low-power state through ACPI, because
__acpi_bus_set_power() refuses to change power states of devices
whose parents' power states are unknown.
To work around this problem, observe that the ACPI power state of
a device cannot be higher-power (lower-number) than the power state
of its parent. Thus, if the device's _PSC method or the
configuration of its power resources indicates that the device is
in D0, the device's parent has to be in D0 as well. Consequently,
if the parent's power state is unknown when we've just learned that
its child's power state is D0, we can safely set the parent's
power.state field to ACPI_STATE_D0.
Tested-by: Aaron Lu <aaron.lu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
If vlan option is being specified in the pktgen and packet size
being requested is less than 46 bytes, despite being illogical
request, pktgen should not crash the kernel.
BUG: unable to handle kernel paging request at ffff88021fb82000
Process kpktgend_0 (pid: 1184, threadinfo ffff880215f1a000, task ffff880218544530)
Call Trace:
[<ffffffffa0637cd2>] ? pktgen_finalize_skb+0x222/0x300 [pktgen]
[<ffffffff814f0084>] ? build_skb+0x34/0x1c0
[<ffffffffa0639b11>] pktgen_thread_worker+0x5d1/0x1790 [pktgen]
[<ffffffffa03ffb10>] ? igb_xmit_frame_ring+0xa30/0xa30 [igb]
[<ffffffff8107ba20>] ? wake_up_bit+0x40/0x40
[<ffffffff8107ba20>] ? wake_up_bit+0x40/0x40
[<ffffffffa0639540>] ? spin+0x240/0x240 [pktgen]
[<ffffffff8107b4e3>] kthread+0x93/0xa0
[<ffffffff81615de4>] kernel_thread_helper+0x4/0x10
[<ffffffff8107b450>] ? flush_kthread_worker+0x80/0x80
[<ffffffff81615de0>] ? gs_change+0x13/0x13
The root cause of why pktgen is not able to handle this case is due
to comparison of signed (datalen) and unsigned data (sizeof), which
eventually passes a huge number to skb_put().
Signed-off-by: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The acpi_evalf() function modifies four bytes of data but in
fan_get_status() we pass a pointer to u8. I have modified the
function to use type checking now.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Fix a device reference count leakage issue in function
eeepc_rfkill_hotplug().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
MODULE_PARM_DESC for wlan_status is further in the same file
Signed-off-by: Maxim A. Nikulin <M.A.Nikulin@gmail.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This function fails to add the start address of the gmux I/O range to
the requested port address and thus writes to the wrong location.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Study of Apple's binary driver revealed that the GMUX_READ_PORT should
be written between calls to gmux_index_wait_ready and
gmux_index_wait_complete (i.e., the new index protocol must be
followed). If this is not done correctly, the indexed
gmux device only partially accepts writes which lead to problems
concerning GPU switching. Special thanks to Seth Forshee who helped
greatly with identifying unnecessary changes.
Signed-off-by: Bernhard Froemel <froemel@vmars.tuwien.ac.at>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This patch extracts and displays version information from the indexed
gmux device as it is also done for the classic gmux device.
Signed-off-by: Bernhard Froemel <froemel@vmars.tuwien.ac.at>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Commit a334872224 added afex support but lacked
several logical changes. This lack can cause afex to crash, and also
have a slight effect on other flows (i.e., driver always assumes the Tx ring
has less available buffers than what it actually has).
This patch adds the missing segments, fixing said issues.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Under traffic, there are several registers that when read (e.g., via
'ethtool -d') may cause the chip to stall.
This patch corrects the registers read in such flows.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch propagates users' requested flow-control into the link layer,
which will later be used to advertise this flow-control for auto-negotiation
(until now these values were ignored).
Signed-off-by: Yaniv Rosner <yaniv.rosner@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prior to this fix, the driver reported the chip's active duplex state
is always 'full', even if using half-duplex mode.
Signed-off-by: Yaniv Rosner <yaniv.rosner@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prevent updating the xmac PFC configuration when using a link speed
slower than 10G -the umac block is responsible for 1G or slower connections,
therefore it is possible the xmac block is reset when connection is slower.
Signed-off-by: Yaniv Rosner <yaniv.rosner@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
FW needs the driver statistics for management. Current logic is broken
in that the function that gathers the port statistics does not copy
its own statistics to a place where the FW can use it.
This patch causes every function that can pass statistics to the FW to
do so.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
