Do not clear Broadcast/Multicast/Unicast Wake Flag or LanWake in
Config5. This is necessary to preserve WOL state when the driver is
loaded. Although the r8168 vendor driver does not write Config5 (it has
been commented out), Hayes Wang from Realtek said that masking bits like
this is more sensible.
Signed-off-by: Peter Wu <lekensteyn@gmail.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If via_ircc_open() fails, data structures of the driver left uninitialized,
but probe (via_init_one()) returns zero. That can lead to null pointer dereference
in via_remove_one(), since it does not check drvdata for NULL.
The patch implements proper error code propagation.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the user turns off VNET_HDR support on the
macvtap device, there is no way to provide any
offload information to the user. So, it's safer
to ignore offload setting then depend on the user
setting them correctly.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the user turns off IFF_VNET_HDR flag, attempts to change
offload features via TUNSETOFFLOAD do not work. This could cause
GSO packets to be delivered to the user when the user is
not prepared to handle them.
To solve, allow processing of TUNSETOFFLOAD when IFF_VNET_HDR is
disabled.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In macvtap, tap_features specific the features of that the user
has specified via ioctl(). If we treat macvtap as a macvlan+tap
then we could all the tap a pseudo-device and give it other features
like SG and GSO. Then we can stop using the features of lower
device (macvlan) when forwarding the traffic the tap.
This solves the issue of possible checksum offload mismatch between
tap feature and macvlan features.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a event is being bound to a VCPU there is a window between the
EVTCHNOP_bind_vpcu call and the adjustment of the local per-cpu masks
where an event may be lost. The hypervisor upcalls the new VCPU but
the kernel thinks that event is still bound to the old VCPU and
ignores it.
There is even a problem when the event is being bound to the same VCPU
as there is a small window beween the clear_bit() and set_bit() calls
in bind_evtchn_to_cpu(). When scanning for pending events, the kernel
may read the bit when it is momentarily clear and ignore the event.
Avoid this by masking the event during the whole bind operation.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
CC: stable@vger.kernel.org
The sizeof() argument in init_evtchn_cpu_bindings() is incorrect
resulting in only the first 64 (or 32 in 32-bit guests) ports having
their bindings being initialized to VCPU 0.
In most cases this does not cause a problem as request_irq() will set
the irq affinity which will set the correct local per-cpu mask.
However, if the request_irq() is called on a VCPU other than 0, there
is a window between the unmasking of the event and the affinity being
set were an event may be lost because it is not locally unmasked on
any VCPU. If request_irq() is called on VCPU 0 then local irqs are
disabled during the window and the race does not occur.
Fix this by initializing all NR_EVENT_CHANNEL bits in the local
per-cpu masks.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: stable@vger.kernel.org
There are possible HW configurations in which PFs will have SR-IOV capability
but will have Max VFs set to 0 - this happens when there are Multi-Function
devices where the VFs are allocated to only some of the PFs.
DMAE is configured to support VFs only if the configuring PF has supported VFs.
In case the first PF to be loaded will be one without supported VFs, it will
not configure DMAE to the VF-supporting mode. When VFs of other PFs will be
loaded later on, they will not be able to communicate with their PF.
This changes the requirement for configuring DMAE for VF-supporting mode;
If the device has SR-IOV capabilities there must be some PF that has
max supported VFs > 0, thus it will configure the DMAE for supporting VFs.
Signed-off-by: Ariel Elior <ariele@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>
Since SR-IOV can be activated dynamically and iproute2 can be called
asynchronously, the various callbacks need a robust sanity check before
attempting to access the SR-IOV database and members since there are numerous
states in which it can find the driver (e.g., PF is down, sriov was not enabled
yet, VF is down, etc.).
In many of the states the callback result will be null pointer dereference.
Signed-off-by: Ariel Elior <ariele@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>
During probe, VFs might erroneously try to access the shared memory (which
only PFs are capabale of accessing), causing benign attentions to appear.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When publishing information via getfeatcfg(), bnx2x driver didn't consider
remote errors (e.g., switch that doesn't support DCBX) when setting the
error flags.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After notification that DCBX configuration has ended arrived to the driver,
the driver configured the FW/HW in sleepless context.
As a result, it was possible to reach a race (mostly with CNIC registration)
in which the configuration will return a timeout, failing to set the DCBX
results correctly.
This patch moves the configuration following the DCBX end into the slowpath
RTNL task (i.e., sleepless context protected by the RTNL lock), allowing the
configuration to cope with such races.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 3deb816 "bnx2x: Add a periodic task for link PHY events"
link state changes can be detected not only via the attention flow but also
from the periodic task.
If the link state will change in such a manner (i.e., via the periodic task),
dropless flow-control will not be configured.
This patch remedies the issue, adding the missing configuration to all required
flows.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull drm fixes from Dave Airlie:
"Bit late with these, was under the weather for a a few days, nothing
too crazy:
Some radeon regression fixes, one intel regression fix, and one fix to
avoid a warn with i915 when used with dma-buf"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: unpin backing storage in dmabuf_unmap
drm/radeon: fix WREG32_OR macro setting bits in a register
drm/radeon/r7xx: fix copy paste typo in golden register setup
drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck code
drm/radeon: fix UVD message buffer validation
Fixing support for the Silicon Image 3826 port multiplier, by applying
to it the same quirks applied to the Silicon Image 3726. Specifically
fixes the repeated timeout/reset process which previously afflicted
the 3726, as described from line 290. Slightly based on notes from:
https://bugzilla.redhat.com/show_bug.cgi?id=890237
Signed-off-by: Terry Suereth <terry.suereth@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
* tag 'drm-intel-fixes-2013-08-15' of git://people.freedesktop.org/~danvet/drm-intel: (153 commits)
drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck code
This fixes a WARN in i915_gem_free_object when the
obj->pages_pin_count isn't 0.
v2: Add locking to unmap, noticed by Chris Wilson. Note that even
though we call unmap with our own dev->struct_mutex held that won't
result in an immediate deadlock since we never go through the dma_buf
interfaces for our own, reimported buffers. But it's still easy to
blow up and anger lockdep, but that's already the case with our ->map
implementation. Fixing this for real will involve per dma-buf ww mutex
locking by the callers. And lots of fun. So go with the duct-tape
approach for now.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Tested-by: Armin K. <krejzi@email.com> (v1)
Tested-by: Dave Airlie <airlied@redhat.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
After any "soft gfx reset" we must manually invalidate the TLBs
associated with each ring. Empirically, it seems that a
suspend/resume or D3-D0 cycle count as a "soft reset". The symptom is
that the hardware would fail to note the new address for its status
page, and so it would continue to write the shadow registers and
breadcrumbs into the old physical address (now used by something
completely different, scary). Whereas the driver would read the new
status page and never see any progress, it would appear that the GPU
hung immediately upon resume.
Based on a patch by naresh kumar kachhi <naresh.kumar.kacchi@intel.com>
Reported-by: Thiago Macieira <thiago@kde.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64725
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Thiago Macieira <thiago@kde.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Return -1 in the error handling case instead of 0, as done elsewhere in
this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
On sparc32, which includes <linux/swap.h> from <asm/pgtable_32.h>:
drivers/md/dm-cache-policy-mq.c:962:13: error: conflicting types for 'remove_mapping'
include/linux/swap.h:285:12: note: previous declaration of 'remove_mapping' was here
As mq_remove_mapping() already exists, and the local remove_mapping() is
used only once, inline it manually to avoid the conflict.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair Kergon <agk@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
another Exynos clock patch which fixes a regression that prevents the
video pipeline from functioning on that platform.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Pull clock controller fixes from Michael Turquette:
"Two small fixes for the Zynq clock controller introduced in 3.11-rc1
and another Exynos clock patch which fixes a regression that prevents
the video pipeline from functioning on that platform"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks
clk/zynq/clkc: Add CLK_SET_RATE_PARENT flag to ethernet muxes
clk/zynq/clkc: Add dedicated spinlock for the SWDT
Here are some small USB fixes for 3.11-rc6 that have accumulated.
Nothing huge, a EHCI fix that solves a much-reported audio USB problem,
some usb-serial driver endian fixes and other minor fixes, a wireless
USB oops fix, and two new quirks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 3.11-rc6 that have accumulated.
Nothing huge, a EHCI fix that solves a much-reported audio USB
problem, some usb-serial driver endian fixes and other minor fixes, a
wireless USB oops fix, and two new quirks"
* tag 'usb-3.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: keyspan: fix null-deref at disconnect and release
USB: mos7720: fix broken control requests
usb: add two quirky touchscreen
USB: ti_usb_3410_5052: fix big-endian firmware handling
USB: adutux: fix big-endian device-type reporting
USB: usbtmc: fix big-endian probe of Rigol devices
USB: mos7840: fix big-endian probe
USB-Serial: Fix error handling of usb_wwan
wusbcore: fix kernel panic when disconnecting a wireless USB->serial device
USB: EHCI: accept very late isochronous URBs
Pull networking fixes from David Miller:
1) Fix SKB leak in 8139cp, from Dave Jones.
2) Fix use of *_PAGES interfaces with mlx5 firmware, from Moshe Lazar.
3) RCU conversion of macvtap introduced two races, fixes by Eric
Dumazet
4) Synchronize statistic flows in bnx2x driver to prevent corruption,
from Dmitry Kravkov
5) Undo optimization in IP tunneling, we were using the inner IP header
in some cases to inherit the IP ID, but that isn't correct in some
circumstances. From Pravin B Shelar
6) Use correct struct size when parsing netlink attributes in
rtnl_bridge_getlink(). From Asbjoern Sloth Toennesen
7) Length verifications in tun_get_user() are bogus, from Weiping Pan
and Dan Carpenter
8) Fix bad merge resolution during 3.11 networking development in
openvswitch, albeit a harmless one which added some unreachable
code. From Jesse Gross
9) Wrong size used in flexible array allocation in openvswitch, from
Pravin B Shelar
10) Clear out firmware capability flags the be2net driver isn't ready to
handle yet, from Sarveshwar Bandi
11) Revert DMA mapping error checking addition to cxgb3 driver, it's
buggy. From Alexey Kardashevskiy
12) Fix regression in packet scheduler rate limiting when working with a
link layer of ATM. From Jesper Dangaard Brouer
13) Fix several errors in TCP Cubic congestion control, in particular
overflow errors in timestamp calculations. From Eric Dumazet and
Van Jacobson
14) In ipv6 routing lookups, we need to backtrack if subtree traversal
don't result in a match. From Hannes Frederic Sowa
15) ipgre_header() returns incorrect packet offset. Fix from Timo Teräs
16) Get "low latency" out of the new MIB counter names. From Eliezer
Tamir
17) State check in ndo_dflt_fdb_del() is inverted, from Sridhar
Samudrala
18) Handle TCP Fast Open properly in netfilter conntrack, from Yuchung
Cheng
19) Wrong memcpy length in pcan_usb driver, from Stephane Grosjean
20) Fix dealock in TIPC, from Wang Weidong and Ding Tianhong
21) call_rcu() call to destroy SCTP transport is done too early and
might result in an oops. From Daniel Borkmann
22) Fix races in genetlink family dumps, from Johannes Berg
23) Flags passed into macvlan by the user need to be validated properly,
from Michael S Tsirkin
24) Fix skge build on 32-bit, from Stephen Hemminger
25) Handle malformed TCP headers properly in xt_TCPMSS, from Pablo Neira
Ayuso
26) Fix handling of stacked vlans in vlan_dev_real_dev(), from Nikolay
Aleksandrov
27) Eliminate MTU calculation overflows in esp{4,6}, from Daniel
Borkmann
28) neigh_parms need to be setup before calling the ->ndo_neigh_setup()
method. From Veaceslav Falico
29) Kill out-of-bounds prefetch in fib_trie, from Eric Dumazet
30) Don't dereference MLD query message if the length isn't value in the
bridge multicast code, from Linus Lüssing
31) Fix VXLAN IGMP join regression due to an inverted check, from Cong
Wang
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits)
net/mlx5_core: Support MANAGE_PAGES and QUERY_PAGES firmware command changes
tun: signedness bug in tun_get_user()
qlcnic: Fix diagnostic interrupt test for 83xx adapters
qlcnic: Fix beacon state return status handling
qlcnic: Fix set driver version command
net: tg3: fix NULL pointer dereference in tg3_io_error_detected and tg3_io_slot_reset
net_sched: restore "linklayer atm" handling
drivers/net/ethernet/via/via-velocity.c: update napi implementation
Revert "cxgb3: Check and handle the dma mapping errors"
be2net: Clear any capability flags that driver is not interested in.
openvswitch: Reset tunnel key between input and output.
openvswitch: Use correct type while allocating flex array.
openvswitch: Fix bad merge resolution.
tun: compare with 0 instead of total_len
rtnetlink: rtnl_bridge_getlink: Call nlmsg_find_attr() with ifinfomsg header
ethernet/arc/arc_emac - fix NAPI "work > weight" warning
ip_tunnel: Do not use inner ip-header-id for tunnel ip-header-id.
bnx2x: prevent crash in shutdown flow with CNIC
bnx2x: fix PTE write access error
bnx2x: fix memory leak in VF
...
In the previous QUERY_PAGES command version we used one command to get the
required amount of boot, init and post init pages. The new version uses the
op_mod field to specify whether the query is for the required amount of boot,
init or post init pages. In addition the output field size for the required
amount of pages increased from 16 to 32 bits.
In MANAGE_PAGES command the input_num_entries and output_num_entries fields
sizes changed from 16 to 32 bits and the PAS tables offset changed to 0x10.
In the pages request event the num_pages field also changed to 32 bits.
In the HCA-capabilities-layout the size and location of max_qp_mcg field has
been changed to support 24 bits.
This patch isn't compatible with firmware versions < 5; however, it turns out that the
first GA firmware we will publish will not support previous versions so this should be OK.
Signed-off-by: Moshe Lazer <moshel@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The recent fix d9bf5f1309 "tun: compare with 0 instead of total_len" is
not totally correct. Because "len" and "sizeof()" are size_t type, that
means they are never less than zero.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
o Do not allow interrupt test when adapter is resetting.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
o Driver was misinterpreting the return status for beacon
state query leading to incorrect interpretation of beacon
state and logging an error message for successful status.
Fixed the driver to properly interpret the return status.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Driver was issuing set driver version command through all
functions in the adapter. Fix the driver to issue set driver
version once per adapter, through function 0.
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit d8af4dfd8 ("net/tg3: Fix kernel crash") introduced a possible
NULL pointer dereference in tg3 driver when !netdev || !netif_running(netdev)
condition is met and netdev is NULL. Then, the jump to the 'done' label
calls dev_close() with a netdevice that is NULL. Therefore, only call
dev_close() when we have a netdevice, but one that is not running.
[ Add the same checks in tg3_io_slot_reset() per Gavin Shan - by Nithin
Nayak Sujir ]
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers supporting NAPI should use a NAPI-specific function for receiving
packets. Hence netif_rx is changed to netif_receive_skb.
Furthermore netif_napi_del should be used in the probe and remove function
to clean up the NAPI resource information.
Thanks to Francois Romieu, David Shwatrz and Rami Rosen for their help on
this patch.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit f83331bab1.
As the tests PPC64 (powernv platform) show, IOMMU pages are leaking
when transferring big amount of small packets (<=64 bytes),
"ping -f" and waiting for 15 seconds is the simplest way to confirm the bug.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Santosh Rastapur <santosh@chelsio.com>
Cc: Jay Fenlason <fenlason@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Divy Le ray <divy@chelsio.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is possible for some versions of firmware to advertise capabilities that driver
is not ready to handle. This may lead to controller stall. Since the driver is
interested only in subset of flags, clearing the rest.
Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure to fail properly if the device is not accepted during attach
in order to avoid null-pointer derefs (of missing interface private
data) at disconnect or release.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The parallel-port code of the drivers used a stack allocated
control-request buffer for asynchronous (and possibly deferred) control
requests. This not only violates the no-DMA-from-stack requirement but
could also lead to corrupt control requests being submitted.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These devices tend to become unresponsive after S3
Signed-off-by: Oliver Neukum <oneukum@suse.de>
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If we get an error event really early in the driver setup sequence,
which gen3 is especially prone to with various display GTT faults we
Oops. So try to avoid this.
Additionally with Haswell the transcoders are a separate bank of
registers from the pipes (4 transcoders, 3 pipes). In event of an
error, we want to be sure we have a complete and accurate picture of
the machine state, so record all the transcoders in addition to all
the active pipes.
This regression has been introduced in
commit 702e7a56af
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue Oct 23 18:29:59 2012 -0200
drm/i915: convert PIPECONF to use transcoder instead of pipe
Based on the patch "drm/i915: Dump all transcoder registers on error"
from Chris Wilson:
v2: Rebase so that we don't try to be clever and try to figure out the
cpu transcoder from hw state. That exercise should be done when we
analyze the error state offline.
The actual bugfix is to not call intel_pipe_to_cpu_transcoder in the
error state capture code in case the pipes aren't fully set up yet.
v3: Simplifiy the err->num_transcoders computation a bit. While at it
make the error capture stuff save on systems without a display block.
v4: Fix fail, spotted by Jani.
v5: Completely new commit message, cc: stable.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60021
Cc: stable@vger.kernel.org
Tested-by: Dustin King <daking@rescomp.stanford.edu>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since we set "len = total_len" in the beginning of tun_get_user(),
so we should compare the new len with 0, instead of total_len,
or the if statement always returns false.
Signed-off-by: Weiping Pan <wpan@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's always a bad idea to poll on HW bits without a timeout.
The i.MX28 RTC can be easily brought into a state in which the RTC is
not running (until after a power-on-reset) and thus the status bits
which are polled in the driver won't ever change.
This patch prevents the kernel from getting stuck in this case.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a BUG which can trigger when direct-IO is used with AOE.
As discussed previously, the fact that some users of the block layer
provide bios that point to pages with a zero _count means that it is not
OK for the network layer to do a put_page on the skb frags during an
skb_linearize, so the aoe driver gets a reference to pages in bios and
puts the reference before ending the bio. And because it cannot use
get_page on a page with a zero _count, it manipulates the value
directly.
It is not OK to increment the _count of a compound page tail, though,
since the VM layer will VM_BUG_ON a non-zero _count. Block users that
do direct I/O can result in the aoe driver seeing compound page tails in
bios. In that case, the same logic works as long as the head of the
compound page is used instead of the tails. This patch handles compound
pages and does not BUG.
It relies on the block layer user leaving the relationship between the
page tail and its head alone for the duration between the submission of
the bio and its completion, whether successful or not.
Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Initially I improperly set a boundary for maximum number of input
packets to process on NAPI poll ("work") so it might be more than
expected amount ("weight").
This was really harmless but seeing WARN_ON_ONCE on every device boot is
not nice. So trivial fix ("<" instead of "<=") is here.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Mischa Jonker <mjonker@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
There might be a crash as during shutdown flow CNIC might try
to access resources already freed by bnx2x.
Change bnx2x_close() into dev_close() in __bnx2x_remove (shutdown flow)
to guarantee CNIC is notified of the device's change of status.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PTE write access error might occur in MF_ALLOWED mode when IOMMU
is active. The patch adds rmmod HSI indicating to MFW to stop
running queries which might trigger this failure.
Signed-off-by: Barak Witkowsky <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ETS can be enabled as a result of DCB negotiation, then
fairness must be recalculated after each negotiation.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add locking to protect different statistics flows from
running simultaneously.
This in order to serialize statistics requests sent to FW,
otherwise two outstanding queries may cause FW assert.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DMA sync should sync the whole receive buffer, not just
part of it. Fixes log messages dma_sync_check.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ISP clock registers belong to the ISP power domain and may change
their values if this power domain is switched off/on. Add
CLK_GET_RATE_NOCACHE flags to ensure we do not rely on invalid cached
data when setting or getting frequency of those clocks.
Without this fix the FIMC-IS Cortex-A5 core and AXI bus clocks have
incorrect frequencies, which breaks the ISP operation and starting the
video pipeline fails with timeouts reported by the FIMC-IS firmware.
See related commit 722a860ecb "[media]
exynos4-is: Fix FIMC-IS clocks initialization" for more details.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Zynq's Ethernet clocks are created by the following hierarchy:
mux0 ---> div0 ---> div1 ---> mux1 ---> gate
Rate change requests on the gate have to propagate all the way up to
div0 to properly leverage all dividers. Mux1 was missing the
CLK_SET_RATE_PARENT flag, which is required to achieve this.
This does not fix a specific regression but the clock driver was merged
for 3.11-rc1, so best to fix the known bugs before the release.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: added to changelog]
The clk_mux for the system watchdog timer reused the register lock
dedicated to the Ethernet module - for no apparent reason.
Add a lock dedicated to the SWDT's clock register to remove this
wrong dependency.
This does not fix a specific regression but the clock driver was merged
for 3.11-rc1, so best to fix the known bugs before the release.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: added to changelog]
In stmmac_init_rx_buffers():
* add missing handling of dma_map_single() error
* remove superfluous unlikely() optimization while at it
Add stmmac_free_rx_buffers() helper and use it in dma_free_rx_skbufs().
In init_dma_desc_rings():
* add missing handling of kmalloc_array() errors
* fix handling of dma_alloc_coherent() and stmmac_init_rx_buffers() errors
* make function return an error value on error and 0 on success
In stmmac_open():
* add handling of init_dma_desc_rings() return value
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix endianess bugs in firmware handling introduced by commits cb7a7c6a
("ti_usb_3410_5052: add Multi-Tech modem support") and 05a3d905
("ti_usb_3410_5052: support alternate firmware") which made the driver
use the wrong firmware for certain devices on big-endian machines.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make sure the reported device-type on big-endian machines is the same as
on little-endian ones.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix probe of Rigol devices on big-endian machines. A quirk for these
devices was introduced by commit c2e314835 ("USB: usbtmc: Set
rigol_quirk if device is listed") but was only enabled on little-endian
machines.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix bug in device-type detection on big-endian machines originally
introduced by commit 0eafe4de ("USB: serial: mos7840: add support for
MCS7810 devices") which always matched on little-endian product ids.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes an issue where the bulk-in urb used for incoming data transfer
is not resubmitted if the packet recieved contains an error status. This
results in the driver locking until the port is closed and re-opened.
Tested on a custom board with a Cinterion GSM module.
Signed-off-by: Matt Burtch <matt@grid-net.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes a kernel panic that can occur when disconnecting a
wireless USB->serial device. When the serial device disconnects, the
device cleanup procedure ends up calling usb_hcd_disable_endpoint on the
serial device's endpoints. The wusbcore uses the ABORT_RPIPE command to
abort all transfers on the given endpoint but it does not properly give
back the URBs when the transfer results return from the HWA. This patch
prevents the transfer result processing code from bailing out when it sees
a WA_XFER_STATUS_ABORTED result code so that these urbs are flushed
properly by usb_hcd_disable_endpoint. It also updates wa_urb_dequeue to
handle the case where the endpoint has already been cleaned up when
usb_kill_urb is called which is where the panic originally occurred.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since commits 4005ad4390 (EHCI: implement new semantics for
URB_ISO_ASAP) and c75c5ab575 (ALSA: USB: adjust for changed 3.8 USB
API) became widely distributed, people have been experiencing problems
with audio transfers. The slightest underrun causes complete failure,
requiring the audio stream to be restarted.
It turns out that the current isochronous API doesn't handle underruns
in the best way. The ALSA developers would much rather have transfers
that are submitted too late be accepted and complete in the normal
fashion, rather than being refused outright.
This patch implements the requested approach. When an isochronous URB
submission is so late that all its scheduled slots have already
expired, a debugging message will be printed in the log and the URB
will be accepted as usual. Assuming it was submitted by a completion
handler (which is normally the case), it will complete shortly
thereafter with all the usb_iso_packet_descriptor status fields marked
-EXDEV.
This fixes (for ehci-hcd)
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603
It should be applied to all kernels that include commit 4005ad4390.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Maksim Boyko <maksboyko@yandex.ru>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the message buffer is currently moving block until it is idle again.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fix possibly wrong memcpy() bytes length since some CAN records received from
PCAN-USB could define a DLC field in range [9..15].
In that case, the real DLC value MUST be used to move forward the record pointer
but, only 8 bytes max. MUST be copied into the data field of the struct
can_frame object of the skb given to the network core.
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit ac4e4af1e5 ("macvtap: Consistently use rcu functions"),
Thomas gets two different warnings :
BUG: using smp_processor_id() in preemptible [00000000] code: vhost-45891/45892
caller is macvtap_do_read+0x45c/0x600 [macvtap]
CPU: 1 PID: 45892 Comm: vhost-45891 Not tainted 3.11.0-bisecttest #13
Call Trace:
([<00000000001126ee>] show_trace+0x126/0x144)
[<00000000001127d2>] show_stack+0xc6/0xd4
[<000000000068bcec>] dump_stack+0x74/0xd8
[<0000000000481066>] debug_smp_processor_id+0xf6/0x114
[<000003ff802e9a18>] macvtap_do_read+0x45c/0x600 [macvtap]
[<000003ff802e9c1c>] macvtap_recvmsg+0x60/0x88 [macvtap]
[<000003ff80318c5e>] handle_rx+0x5b2/0x800 [vhost_net]
[<000003ff8028f77c>] vhost_worker+0x15c/0x1c4 [vhost]
[<000000000015f3ac>] kthread+0xd8/0xe4
[<00000000006934a6>] kernel_thread_starter+0x6/0xc
[<00000000006934a0>] kernel_thread_starter+0x0/0xc
And
BUG: using smp_processor_id() in preemptible [00000000] code: vhost-45897/45898
caller is macvlan_start_xmit+0x10a/0x1b4 [macvlan]
CPU: 1 PID: 45898 Comm: vhost-45897 Not tainted 3.11.0-bisecttest #16
Call Trace:
([<00000000001126ee>] show_trace+0x126/0x144)
[<00000000001127d2>] show_stack+0xc6/0xd4
[<000000000068bdb8>] dump_stack+0x74/0xd4
[<0000000000481132>] debug_smp_processor_id+0xf6/0x114
[<000003ff802b72ca>] macvlan_start_xmit+0x10a/0x1b4 [macvlan]
[<000003ff802ea69a>] macvtap_get_user+0x982/0xbc4 [macvtap]
[<000003ff802ea92a>] macvtap_sendmsg+0x4e/0x60 [macvtap]
[<000003ff8031947c>] handle_tx+0x494/0x5ec [vhost_net]
[<000003ff8028f77c>] vhost_worker+0x15c/0x1c4 [vhost]
[<000000000015f3ac>] kthread+0xd8/0xe4
[<000000000069356e>] kernel_thread_starter+0x6/0xc
[<0000000000693568>] kernel_thread_starter+0x0/0xc
2 locks held by vhost-45897/45898:
#0: (&vq->mutex){+.+.+.}, at: [<000003ff8031903c>] handle_tx+0x54/0x5ec [vhost_net]
#1: (rcu_read_lock){.+.+..}, at: [<000003ff802ea53c>] macvtap_get_user+0x824/0xbc4 [macvtap]
In the first case, macvtap_put_user() calls macvlan_count_rx()
in a preempt-able context, and this is not allowed.
In the second case, macvtap_get_user() calls
macvlan_start_xmit() with BH enabled, and this is not allowed.
Reported-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Bisected-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is three bug fixes: An fnic warning caused by sleeping under a lock, a
major regression with our updated WRITE SAME/UNMAP logic which caused tons of
USB devices (and one RAID card) to cease to function and a megaraid_sas
firmware initialisation problem which causes kdump failures.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is three bug fixes: An fnic warning caused by sleeping under a
lock, a major regression with our updated WRITE SAME/UNMAP logic which
caused tons of USB devices (and one RAID card) to cease to function
and a megaraid_sas firmware initialisation problem which causes kdump
failures"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] Don't attempt to send extended INQUIRY command if skip_vpd_pages is set
[SCSI] fnic: BUG: sleeping function called from invalid context during probe
[SCSI] megaraid_sas: megaraid_sas driver init fails in kdump kernel
Pull i2c fixes from Wolfram Sang:
"Some driver bugfixes for the I2C subsystem"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mv64xxx: Document the newly introduced allwinner compatible
i2c: Fix Kontron PLD prescaler calculation
i2c: i2c-mxs: Use DMA mode even for small transfers
Here are 3 small fixes for staging/IIO drivers for 3.11-rc5. Nothing
huge, two IIO driver fixes, and a zcache fix. All of these have been in
linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are 3 small fixes for staging/IIO drivers for 3.11-rc5. Nothing
huge, two IIO driver fixes, and a zcache fix. All of these have been
in linux-next for a while"
* tag 'staging-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: zcache: fix "zcache=" kernel parameter
iio: ti_am335x_adc: Fix wrong samples received on 1st read
iio:trigger: Fix use_count race condition
Here are 3 small USB fixes for 3.11-rc5.
One is a fix that the ChromeOS developers ran into on some Intel
hardware, one is a build fix, and the last is a MAINTAINERS update to
help people figure out where to send USB network driver patches.
All of these have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are 3 small USB fixes for 3.11-rc5.
One is a fix that the ChromeOS developers ran into on some Intel
hardware, one is a build fix, and the last is a MAINTAINERS update to
help people figure out where to send USB network driver patches.
All of these have been in linux-next for a while"
* tag 'usb-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
MAINTAINERS: Add separate section for USB NETWORKING DRIVERS
usb: xhci: add missing dma-mapping.h includes
usb: core: don't try to reset_device() a port that got just disconnected
- ACPI-based memory hotplug stopped working after a recent change,
because it's not possible to associate sufficiently many "physical"
devices with one ACPI device object due to an artificial limit.
Fix from Rafael J Wysocki removes that limit and makes memory
hotplug work again.
- A change made in 3.9 uncovered a bug in the ACPI processor driver
preventing NUMA nodes from being put offline due to an ordering
issue. Fix from Yasuaki Ishimatsu changes the ordering to make
things work again.
- One of the recent ACPI video commits (that hasn't been reverted
so far) uncovered a bug in the code handling quirky BIOSes that
caused some Asus machines to boot with backlight completely off
which made it quite difficult to use them afterward. Fix from
Felipe Contreras improves the quirk to cover this particular
case correctly.
- A cpufreq user space interface change made in 3.10 inadvertently
renamed the ignore_nice_load sysfs attribute to ignore_nice which
resulted in some confusion. Fix from Viresh Kumar changes the name
back to ignore_nice_load.
- An initialization ordering change made in 3.9 broke cpufreq on
loongson2 boards. Fix from Aaro Koskinen restores the correct
initialization ordering there.
- Fix breakage resulting from a mistake made in 3.9 and causing the
detection of some graphics adapters (that were detected correctly
before) to fail. There are two objects representing the same PCIe
port in the affected systems' ACPI tables and both appear as
"enabled" and we are expected to guess which one to use. We used
to choose the right one before by pure luck, but when we tried to
address another similar corner case, the luck went away. This time
we try to make our guessing a bit more educated which is reported
to work on those systems.
- The /proc/acpi/wakeup interface code is missing some locking
which may lead to breakage if that file is written or read during
hotplug of wakeup devices. That should be rare but still possible,
so it's better to start using the appropriate locking there.
/
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Merge tag 'pm+acpi-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- ACPI-based memory hotplug stopped working after a recent change,
because it's not possible to associate sufficiently many "physical"
devices with one ACPI device object due to an artificial limit. Fix
from Rafael J Wysocki removes that limit and makes memory hotplug
work again.
- A change made in 3.9 uncovered a bug in the ACPI processor driver
preventing NUMA nodes from being put offline due to an ordering
issue. Fix from Yasuaki Ishimatsu changes the ordering to make
things work again.
- One of the recent ACPI video commits (that hasn't been reverted so
far) uncovered a bug in the code handling quirky BIOSes that caused
some Asus machines to boot with backlight completely off which made
it quite difficult to use them afterward. Fix from Felipe Contreras
improves the quirk to cover this particular case correctly.
- A cpufreq user space interface change made in 3.10 inadvertently
renamed the ignore_nice_load sysfs attribute to ignore_nice which
resulted in some confusion. Fix from Viresh Kumar changes the name
back to ignore_nice_load.
- An initialization ordering change made in 3.9 broke cpufreq on
loongson2 boards. Fix from Aaro Koskinen restores the correct
initialization ordering there.
- Fix breakage resulting from a mistake made in 3.9 and causing the
detection of some graphics adapters (that were detected correctly
before) to fail. There are two objects representing the same PCIe
port in the affected systems' ACPI tables and both appear as
"enabled" and we are expected to guess which one to use. We used to
choose the right one before by pure luck, but when we tried to
address another similar corner case, the luck went away. This time
we try to make our guessing a bit more educated which is reported to
work on those systems.
- The /proc/acpi/wakeup interface code is missing some locking which
may lead to breakage if that file is written or read during hotplug
of wakeup devices. That should be rare but still possible, so it's
better to start using the appropriate locking there.
* tag 'pm+acpi-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: Try harder to resolve _ADR collisions for bridges
cpufreq: rename ignore_nice as ignore_nice_load
cpufreq: loongson2: fix regression related to clock management
ACPI / processor: move try_offline_node() after acpi_unmap_lsapic()
ACPI: Drop physical_node_id_bitmap from struct acpi_device
ACPI / PM: Walk physical_node_list under physical_node_lock
ACPI / video: improve quirk check in acpi_video_bqc_quirk()
Pull media fixes from Mauro Carvalho Chehab:
"Some driver fixes (em28xx, coda, usbtv, s5p, hdpvr and ml86v7667) and
a fix for media DocBook"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] em28xx: fix assignment of the eeprom data
[media] hdpvr: fix iteration over uninitialized lists in hdpvr_probe()
[media] usbtv: fix dependency
[media] usbtv: Throw corrupted frames away
[media] usbtv: Fix deinterlacing
[media] v4l2: added missing mutex.h include to v4l2-ctrls.h
[media] DocBook: upgrade media_api DocBook version to 4.2
[media] ml86v7667: fix compile warning: 'ret' set but not used
[media] s5p-g2d: Fix registration failure
[media] media: coda: Fix DT driver data pointer for i.MX27
[media] s5p-mfc: Fix input/output format reporting
This patch fixed the condition of extend_desc for jumbo frame.
There is no check routine for extend_desc in the stmmac_jumbo_frm function.
Even though extend_desc is set if dma_tx is used instead of dma_etx.
It causes kernel panic.
Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull HID fix from Jiri Kosina:
"Revert of a patch which breaks enumeration workaround in
hid-logitech-dj"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
Revert "HID: hid-logitech-dj: querying_devices was never set"
- omapdss: compilation fix and DVI fix for PandaBoard
- mxsfb: fix colors when using 18bit LCD bus
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Merge tag 'fbdev-fixes-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev fixes from Tomi Valkeinen:
- omapdss: compilation fix and DVI fix for PandaBoard
- mxsfb: fix colors when using 18bit LCD bus
* tag 'fbdev-fixes-3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
ARM: OMAP: dss-common: fix Panda's DVI DDC channel
video: mxsfb: fix color settings for 18bit data bus and 32bpp
OMAPDSS: analog-tv-connector: compile fix
Pull drm fixes from Dave Airlie:
"Mostly radeon, more fixes for dynamic power management which is is off
by default for this release anyways, but there are a large number of
testers, so I'd like to keep merging the fixes.
Otherwise, radeon UVD fixes affecting suspend/resume regressions, i915
regression fixes, one for your mac mini, ast, mgag200, cirrus ttm fix
and one regression fix in the core"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (25 commits)
drm: Don't pass negative delta to ktime_sub_ns()
drm/radeon: make missing smc ucode non-fatal
drm/radeon/dpm: require rlc for dpm
drm/radeon/cik: use a mutex to properly lock srbm instanced registers
drm/radeon: remove unnecessary unpin
drm/radeon: add more UVD CS checking
drm/radeon: stop sending invalid UVD destroy msg
drm/radeon: only save UVD bo when we have open handles
drm/radeon: always program the MC on startup
drm/radeon: fix audio dto calculation on DCE3+ (v3)
drm/radeon/dpm: disable sclk ss on rv6xx
drm/radeon: fix halting UVD
drm/radeon/dpm: adjust power state properly for UVD on SI
drm/radeon/dpm: fix spread spectrum setup (v2)
drm/radeon/dpm: adjust thermal protection requirements
drm/radeon: select audio dto based on encoder id for DCE3
drm/radeon: properly handle pm on gpu reset
drm/i915: do not disable backlight on vgaswitcheroo switch off
drm/i915: Don't call encoder's get_config unless encoder is active
drm/i915: avoid brightness overflow when doing scale
...
This is a regression introduced by:
commit fe5c3561e6
Author: stephen hemminger <stephen@networkplumber.org>
Date: Sat Jul 13 10:18:18 2013 -0700
vxlan: add necessary locking on device removal
The problem is that vxlan_dellink(), which is called with RTNL lock
held, tries to flush the workqueue synchronously, but apparently
igmp_join and igmp_leave work need to hold RTNL lock too, therefore we
have a soft lockup!
As suggested by Stephen, probably the flush_workqueue can just be
removed and let the normal refcounting work. The workqueue has a
reference to device and socket, therefore the cleanups should work
correctly.
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Tested-by: Cong Wang <amwang@redhat.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a regression introduced by:
commit 3fc2de2fab
Author: stephen hemminger <stephen@networkplumber.org>
Date: Thu Jul 18 08:40:15 2013 -0700
vxlan: fix igmp races
Before this commit, the old code was:
if (vxlan_group_used(vn, vxlan->default_dst.remote_ip))
ip_mc_join_group(sk, &mreq);
else
ip_mc_leave_group(sk, &mreq);
therefore we shoud check vxlan_group_used(), not its opposite,
for igmp_join.
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduced in cf3c4c0306
("8139cp: Add dma_mapping_error checking")
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We want the data stored in "addr" and "qual", but the extra ampersands
mean we are copying stack data instead.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Patch fixes zd1201 not to use stack as URB transfer_buffer. URB buffers need
to be DMA-able, which stack is not.
Patch is only compile tested.
Cc: stable@vger.kernel.org
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The ACTIVITY and ERROR signals were reversed in the original commit.
Fix that so that hard drive activity does not show up on the error
light, and attempts to indicate that the hard drive is failing do
not show up as hard drive activity. This fixes a fairly serious
functional bug in the driver, but failing to apply this patch will
not cause any stability issues on the system.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This reverts commit 407a2c2a4d.
Explanation provided by Benjamin Tissoires:
Commit "HID: hid-logitech-dj, querying_devices was never set" activate
a flag which guarantees that we do not ask the receiver for too many
enumeration. When the flag is set, each following enumeration call is
discarded (the usb request is not forwarded to the receiver). The flag
is then released when the driver receive a pairing information event,
which normally follows the enumeration request.
However, the USB3 bug makes the driver think the enumeration request
has been forwarded to the receiver. However, it is actually not the
case because the USB stack returns -EPIPE. So, when a new unknown
device appears, the workaround consisting in asking for a new
enumeration is not working anymore: this new enumeration is discarded
because of the flag, which is never reset.
A solution could be to trigger a timeout before releasing it, but for
now, let's just revert the patch.
Reported-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Tested-by: Sune Mølgaard <sune@molgaard.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Daniel writes:
A few bugfixes for serious stuff and regressions. Highlight is the
reinstated hack to keep the i915 backlight on when running on an optimus
machine, this prevents black screens especially with some radeon muxed
platforms. And the patch to quiet dmesg on Linus' old mac mini ;-)
* tag 'drm-intel-fixes-2013-08-08' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: do not disable backlight on vgaswitcheroo switch off
drm/i915: Don't call encoder's get_config unless encoder is active
drm/i915: avoid brightness overflow when doing scale
drm/i915: update last_vblank when disabling the power well
drm/i915: fix gen4 digital port hotplug definitions
In adt7470_write_word_data(), which writes two bytes using
i2c_smbus_write_byte_data(), the return codes are incorrectly AND-ed
together when they should be OR-ed together.
The return code of i2c_smbus_write_byte_data() is zero for success.
The upshot is only the first byte was ever written to the hardware.
The 2nd byte was never written out.
I noticed that trying to set the fan speed limits was not working
correctly on my system. Setting the fan speed limits is the only
code that uses adt7470_write_word_data(). After making the change
the limit settings work and the alarms work also.
Signed-off-by: Curt Brune <curt@cumulusnetworks.com>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Two things here, one is a fix for a nasty issue where we were failing to
sync the last register in a block when using raw writes and the other
fixes a missing header for the !REGMAP stubs so that we don't rely on
implicit includes in that case.
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Merge tag 'regmap-v3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"Two things here, one is a fix for a nasty issue where we were failing
to sync the last register in a block when using raw writes and the
other fixes a missing header for the !REGMAP stubs so that we don't
rely on implicit includes in that case"
* tag 'regmap-v3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Add missing header for !CONFIG_REGMAP stubs
regmap: cache: Make sure to sync the last register in a block
Just one update for SPI, a simple fix to the davinci driver to correct
the direction for which DMA is mapped following the dmaengine
conversion.
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Merge tag 'spi-v3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
"Just one update for SPI, a simple fix to the davinci driver to correct
the direction for which DMA is mapped following the dmaengine
conversion"
* tag 'spi-v3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-davinci: Fix direction in dma_map_single()
and all CC:stable..
Thanks,
Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio fixes from Rusty Russell:
"More virtio console fixes than I'm happy with, but all real issues,
and all CC:stable.."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio-scsi: Fix virtqueue affinity setup
virtio: console: return -ENODEV on all read operations after unplug
virtio: console: fix raising SIGIO after port unplug
virtio: console: clean up port data immediately at time of unplug
virtio: console: fix race in port_fops_open() and port unplug
virtio: console: fix race with port unplug and open/close
virtio/console: Add pipe_lock/unlock for splice_write
virtio/console: Quit from splice_write if pipe->nrbufs is 0
It takes an unsigned value. This happens not to blow up on 64-bit
architectures, but it does on 32-bit, causing
drm_calc_vbltimestamp_from_scanoutpos() to calculate totally bogus
timestamps for vblank events. Which in turn causes e.g. gnome-shell to
hang after a DPMS off cycle with current xf86-video-ati Git.
[airlied: regression introduced in drm: use monotonic time in drm_calc_vbltimestamp_from_scanoutpos]
Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59339
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59836
Tested-by: shui yangwei <yangweix.shui@intel.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Some more radeon fixes. Mostly dpm and uvd fixes. Fixes hangs
with dpm on more rv6xx asics, and fixes suspend and resume with UVD.
* 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: make missing smc ucode non-fatal
drm/radeon/dpm: require rlc for dpm
drm/radeon/cik: use a mutex to properly lock srbm instanced registers
drm/radeon: remove unnecessary unpin
drm/radeon: add more UVD CS checking
drm/radeon: stop sending invalid UVD destroy msg
drm/radeon: only save UVD bo when we have open handles
drm/radeon: always program the MC on startup
drm/radeon: fix audio dto calculation on DCE3+ (v3)
drm/radeon/dpm: disable sclk ss on rv6xx
drm/radeon: fix halting UVD
drm/radeon/dpm: adjust power state properly for UVD on SI
drm/radeon/dpm: fix spread spectrum setup (v2)
drm/radeon/dpm: adjust thermal protection requirements
drm/radeon: select audio dto based on encoder id for DCE3
drm/radeon: properly handle pm on gpu reset
The smc ucode is required for dpm (dynamic power
management), but if it's missing just skip dpm setup
and don't disable acceleration.
Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=67876
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The rlc is required for dpm to work properly, so if
the rlc ucode is missing, don't enable dpm. Enabling
dpm without the rlc enabled can result in hangs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We don't pin the BO on allocation, so don't unpin it on free.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Improve error handling in case userspace sends us
an invalid command buffer.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We also need to check the handle.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Otherwise just reinitialize from scratch on resume,
and so make it more likely to succeed.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
For r6xx+ asics. This mirrors the behavior of pre-r6xx
asics. We need to program the MC even if something
else in startup() fails. Failure to do so results in
an unusable GPU.
Based on a fix from: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Need to set the wallclock ratio and adjust the phase
and module registers appropriately. May fix problems
with audio timing at certain display timings.
v2: properly handle clocks below 24mhz
v3: rebase r600 changes
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Removing the clock/power or resetting the VCPU can cause
hangs if that happens in the middle of a register write.
Stall the memory and register bus before putting the VCPU
into reset. Keep it in reset when unloading the module or
suspending.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
There are some hardware issue with reclocking on SI when
UVD is active, so use a stable power state when UVD is
active. Fixes possible hangs and performance issues when
using UVD on SI.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Need to check for engine and memory clock ss separately
and only enable dynamic ss if either of them are found.
This should fix systems which have a ss table, but do
not have entries for engine or memory. On those systems
we may enable dynamic spread spectrum without enabling
it on the engine or memory clocks which can lead to a
hang in some cases.
fixes some systems reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=66963
v2: fix typo
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On rv770 and newer, clock gating is not required
for thermal protection. The only requirement is that
the design utilizes a thermal sensor.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
There are two audio dtos on radeon asics that you can
select between. Normally, dto0 is used for hdmi and
dto1 for DP, but it seems that the dto is somehow
tied to the encoders on DCE3 asics.
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=67435
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
When we reset the GPU, we need to properly tear
down power management before reseting the GPU and then
set it back up again after reset. Add the missing
radeon_pm_[suspend|resume] calls to the gpu reset
function.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In theory, under a given ACPI namespace node there should be only
one child device object with _ADR whose value matches a given bus
address exactly. In practice, however, there are systems in which
multiple child device objects under a given parent have _ADR matching
exactly the same address. In those cases we use _STA to determine
which of the multiple matching devices is enabled, since some systems
are known to indicate which ACPI device object to associate with the
given physical (usually PCI) device this way.
Unfortunately, as it turns out, there are systems in which many
device objects under the same parent have _ADR matching exactly the
same bus address and none of them has _STA, in which case they all
should be regarded as enabled according to the spec. Still, if
those device objects are supposed to represent bridges (e.g. this
is the case for device objects corresponding to PCIe ports), we can
try harder and skip the ones that have no child device objects in the
ACPI namespace. With luck, we can avoid using device objects that we
are not expected to use this way.
Although this only works for bridges whose children also have ACPI
namespace representation, it is sufficient to address graphics
adapter detection issues on some systems, so rework the code finding
a matching device ACPI handle for a given bus address to implement
this idea.
Introduce a new function, acpi_find_child(), taking three arguments:
the ACPI handle of the device's parent, a bus address suitable for
the device's bus type and a bool indicating if the device is a
bridge and make it work as outlined above. Reimplement the function
currently used for this purpose, acpi_get_child(), as a call to
acpi_find_child() with the last argument set to 'false' and make
the PCI subsystem use acpi_find_child() with the bridge information
passed as the last argument to it. [Lan Tianyu notices that it is
not sufficient to use pci_is_bridge() for that, because the device's
subordinate pointer hasn't been set yet at this point, so use
hdr_type instead.]
This change fixes a regression introduced inadvertently by commit
33f767d (ACPI: Rework acpi_get_child() to be more efficient) which
overlooked the fact that for acpi_walk_namespace() "post-order" means
"after all children have been visited" rather than "on the way back",
so for device objects without children and for namespace walks of
depth 1, as in the acpi_get_child() case, the "post-order" callbacks
ordering is actually the same as the ordering of "pre-order" ones.
Since that commit changed the namespace walk in acpi_get_child() to
terminate after finding the first matching object instead of going
through all of them and returning the last one, it effectively
changed the result returned by that function in some rare cases and
that led to problems (the switch from a "pre-order" to a "post-order"
callback was supposed to prevent that from happening, but it was
ineffective).
As it turns out, the systems where the change made by commit
33f767d actually matters are those where there are multiple ACPI
device objects representing the same PCIe port (which effectively
is a bridge). Moreover, only one of them, and the one we are
expected to use, has child device objects in the ACPI namespace,
so the regression can be addressed as described above.
References: https://bugzilla.kernel.org/show_bug.cgi?id=60561
Reported-by: Peter Wu <lekensteyn@gmail.com>
Tested-by: Vladimir Lalov <mail@vlalov.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
This sysfs file was called ignore_nice_load earlier and commit
4d5dcc4 (cpufreq: governor: Implement per policy instances of
governors) changed its name to ignore_nice by mistake.
Lets get it renamed back to its original name.
Reported-by: Martin von Gagern <Martin.vGagern@gmx.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 42913c799 (MIPS: Loongson2: Use clk API instead of direct
dereferences) broke the cpufreq functionality on Loongson2 boards:
clk_set_rate() is called before the CPU frequency table is
initialized, and therefore will always fail.
Fix by moving the clk_set_rate() after the table initialization.
Tested on Lemote FuLoong mini-PC.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
try_offline_node() checks that all CPUs associated with the given
node have been removed by using cpu_present_bits. If all cpus
related to that node have been removed, try_offline_node() clears
the node information.
However, try_offline_node() called from acpi_processor_remove() never
clears the node information. For disabling cpu_present_bits,
acpi_unmap_lsapic() needs be called. Yet, acpi_unmap_lsapic() is
called after try_offline_node() has run. So when try_offline_node()
runs, the CPU's cpu_present_bits is always set.
Fix the issue by moving try_offline_node() after acpi_unmap_lsapic().
The problem fixed here was uncovered by commit cecdb19 "ACPI / scan:
Change the implementation of acpi_bus_trim()".
[rjw: Changelog]
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The current code use no locking at all, which is obviously not that
great and can lead to concurrency issues, especially with the newer SMP
SoCs from Allwinner.
Add some locking where it's needed.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
The current gpio_set function is ignoring the previous value set in the
GPIO value register, which leads in erasing the values already set for
the other GPIOs in the same bank when setting the value of a given GPIO.
Add the usual read/mask/write pattern to fix this brown paper bag bug.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
The current irq_set_type code doesn't read the current register value
before writing to it, leading to the older programmed values being
overwritten and everything but the latest value being reset.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
On muxed systems, the other vgaswitcheroo client may depend on i915 to
handle the backlight. We began switching off the backlight since
commit a261b246eb
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Jul 26 19:21:47 2012 +0200
drm/i915: disable all crtcs at suspend time
breaking backlight on discreet graphics in (some) muxed systems.
Keep the backlight on when the state is changed through vgaswitcheroo.
Note: The alternative would be to add a quirk table to achieve the same
based on system identifiers, but AFAICS it would asymptotically approach
effectively the same as this patch as more IDs are added, but with the
maintenance burden of the quirk table.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55311
Tested-by: Fede <fedevx@yahoo.com>
Tested-by: Aximab <laurent.debian@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59785
Tested-by: sfievet <sebastien.fievet@free.fr>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The SDVO code tries to compare the encoder's and crtc's idea of the
pixel_multiplier. Normally they have to match, but when transitioning
to DPMS off, we turn off the pipe before reading out the pipe_config,
so the pixel_multiplier in the pipe_config will be 0, whereas the
encoder will still have its pixel_multiplier set to whatever value we
were using when the display was active. This leads to a warning
from intel_modeset_check_state().
WARNING: CPU: 1 PID: 2846 at drivers/gpu/drm/i915/intel_sdvo.c:1378 intel_sdvo_get_config+0x158/0x160()
SDVO pixel multiplier mismatch, port: 0, encoder: 1
Modules linked in: snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep
CPU: 1 PID: 2846 Comm: Xorg Not tainted 3.11.0-rc3-00208-gbe1e8d7-dirty #19
Hardware name: Apple Computer, Inc. Macmini1,1/Mac-F4208EC8, BIOS MM11.88Z.0055.B03.0604071521 04/07/06
00000000 00000000 ef0afa54 c1597bbb c1737ea4 ef0afa84 c10392ca c1737e6c
ef0afab0 00000b1e c1737ea4 00000562 c12dfbe8 c12dfbe8 ef0afb14 00000000
f697ec00 ef0afa9c c103936e 00000009 ef0afa94 c1737e6c ef0afab0 ef0afadc
Call Trace:
[<c1597bbb>] dump_stack+0x41/0x56
[<c10392ca>] warn_slowpath_common+0x7a/0xa0
[<c103936e>] warn_slowpath_fmt+0x2e/0x30
[<c12dfbe8>] intel_sdvo_get_config+0x158/0x160
[<c12c3220>] check_crtc_state+0x1e0/0xb10
[<c12cdc7d>] intel_modeset_check_state+0x29d/0x7c0
[<c12dfe5c>] intel_sdvo_dpms+0x5c/0xa0
[<c12985de>] drm_mode_obj_set_property_ioctl+0x40e/0x420
[<c1298625>] drm_mode_connector_property_set_ioctl+0x35/0x40
[<c1289294>] drm_ioctl+0x3e4/0x540
[<c10fc1a2>] do_vfs_ioctl+0x72/0x570
[<c10fc72f>] SyS_ioctl+0x8f/0xa0
[<c159b7fa>] sysenter_do_call+0x12/0x22
---[ end trace 7ce940aff1366d60 ]---
Fix the problem by skipping the encoder get_config() function for
inactive encoders.
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Some card's max brightness level is pretty large, e.g. on Acer Aspire
4732Z, the max level is 989910. If user space set a large enough level
then the current scale done in intel_panel_set_backlight will cause an
integer overflow and the scaled level will be mistakenly small, leaving
user with an almost black screen. This patch fixes this problem.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
[danvet: Add a comment to explain what's going on.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The DRM layer keeps track of our vblanks and it assumes our vblank
counters only go back to zero when they overflow. The problem is that
when we disable the power well our counters also go to zero, but it
doesn't mean they did overflow. So on this patch we grab the lock and
update last_vblank so the DRM layer won't think our counters
overflowed.
This patch fixes the following intel-gpu-tools test:
./kms_flip --run-subtest blocking-absolute-wf_vblank
Regression introduced by the following commit:
commit bf51d5e2cd
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Wed Jul 3 17:12:13 2013 -0300
drm/i915: switch disable_power_well default value to 1
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66808
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Added a comment that this might be better done in
drm_vblank_post_modeset in general.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Apparently Bspec is wrong in this case here even for gm45. Note that
Bspec is horribly misguided on i965g/gm, so we don't have any other
data points besides that it seems to make machines work better.
With this changes all the bits in PORT_HOTPLUG_STAT for the digital
ports are ordered the same way. This seems to agree with what register
dumps from the hpd storm handling code shows, where the LIVE bit and
the short/long pulse STATUS bits light up at the same time with this
enumeration (but no with the one from Bspec).
Also tested on my gm45 which has two DP+ ports, and everything seems
to still work as expected.
References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg23054.html
Cc: Egbert Eich <eich@suse.com>
Cc: Jan Niggemann <jn@hz6.de>
Tested-by: Jan Niggemann <jn@hz6.de>
[danvet: Add a big warning that Bspec seems to be wrong for these
bits, suggested by Jani.]
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When a BO gets pinned the placement may get changed. If the memory is
mapped into user space and user space has already accessed the mapped
range the page tables are set up but now point to the wrong memory.
Set bo.mdev->dev_mapping in mgag200_bo_create() to make sure that
ttm_bo_unmap_virtual() called from ttm_bo_handle_move_mem() will take
care of this.
v2: Don't call ttm_bo_unmap_virtual() in mgag200_bo_pin(), fix comment.
Signed-off-by: Egbert Eich <eich@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is a cirrus version of Egbert Eich's patch for mgag200.
Without bo.bdev->dev_mapping set, the ttm_bo_unmap_virtual_locked
called from ttm_bo_handle_move_mem returns with no effect. If any
application accessed the memory before it was moved, it will
access wrong memory next time. This causes crashes when changing
resolution down.
Signed-off-by: Michal Srb <msrb@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Pull libata fix from Tejun Heo:
"Just the addition of MODULE_DEVICE_TABLE() for a platform driver"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
pata_imx: expose module alias for loading from device-tree
Pull s390 fixes from Martin Schwidefsky:
"Enable LZ4 compression for the kernel image, add the machine id for
the new zBC12 model, fix an issue with hanging dasd devices, correct a
Kconfig dependency, fix a compile error in the perf module with
CONFIG_KVM=n and fix the find_next_bit_left primitive for the PCI base
layer"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/dasd: fix hanging devices after path events
s390/perf: fix compile error (undefined reference sie_exit)
s390/bitops: fix find_next_bit_left
s390: add support for IBM zBC12 machine
s390/Kconfig: select 'TTY' when 'S390_GUEST' is enabled
s390: add support for LZ4-compressed kernel
The physical_node_id_bitmap in struct acpi_device is only used for
looking up the first currently unused dependent phyiscal node ID
by acpi_bind_one(). It is not really necessary, however, because
acpi_bind_one() walks the entire physical_node_list of the given
device object for sanity checking anyway and if that list is always
sorted by node_id, it is straightforward to find the first gap
between the currently used node IDs and use that number as the ID
of the new list node.
This also removes the artificial limit of the maximum number of
dependent physical devices per ACPI device object, which now depends
only on the capacity of unsigend int. As a result, it fixes a
regression introduced by commit e2ff394 (ACPI / memhotplug: Bind
removable memory blocks to ACPI device nodes) that caused
acpi_memory_enable_device() to fail when the number of 128 MB blocks
within one removable memory module was greater than 32.
Reported-and-tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
If scheduling an important time event fails, or if we get
an unexpected notification from the firmware, there isn't
much we can do to recover, so just drop the connection and
let higher layers retry it.
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This reverts commit a53ee0a308.
This fix causes a worse HW Error when entering RF-Kill.
Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The list of physical devices corresponding to an ACPI device
object is walked by acpi_system_wakeup_device_seq_show() and
physical_device_enable_wakeup() without taking that object's
physical_node_lock mutex. Since each of those functions may be
run at any time as a result of a user space action, the lack of
appropriate locking in them may lead to a kernel crash if that
happens during device hot-add or hot-remove involving the device
object in question.
Fix the issue by modifying acpi_system_wakeup_device_seq_show() and
physical_device_enable_wakeup() to use physical_node_lock as
appropriate.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: All <stable@vger.kernel.org>
Otherwise, on neighbour creation, bond_neigh_init() will be called with a
foreign netdev.
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's an underlying race condition with the unjoin_work() call that is
sometimes triggered depending on scheduling order and the phase of the
moon. This doesn't fix the race condition, but it does remove the
ill-advised BUG_ON() call in an easily-recoverable situation.
Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Remove this code, per Dave Miller's request, since it is not being used
anywhere in the kernel.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit df8ef8f3aa
macvlan: add FDB bridge ops and macvlan flags
added a flags field to macvlan, which can be
controlled from userspace.
The idea is to make the interface future-proof
so we can add flags and not new fields.
However, flags value isn't validated, as a result,
userspace can't detect which flags are supported.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
regcache_sync_block_raw_flush() expects the address of the register after last
register that needs to be synced as its parameter. But the last call to
regcache_sync_block_raw_flush() in regcache_sync_block_raw() passes the address
of the last register in the block. This effectively always skips over the last
register in a block, even if it needs to be synced. In order to fix it increase
the address by one register.
The issue was introduced in commit 75a5f89 ("regmap: cache: Write consecutive
registers in a single block write").
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add some necessary braces that have been removed during driver cleanup.
This fixes the I2C prescaler calculation.
Signed-off-by: Michael Brunner <michael.brunner@kontron.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Recently we have been seing some reports about PIO mode not working properly.
- http://www.spinics.net/lists/linux-i2c/msg11985.html
- http://marc.info/?l=linux-i2c&m=137235593101385&w=2
- https://lkml.org/lkml/2013/6/24/430
Let's use DMA mode even for small transfers.
Without this patch, i2c reads the incorrect sgtl5000 version on a mx28evk when
touchscreen is enabled:
[ 5.856270] sgtl5000 0-000a: Device with ID register 0 is not a sgtl5000
[ 9.877307] sgtl5000 0-000a: ASoC: failed to probe CODEC -19
[ 9.883528] mxs-sgtl5000 sound.12: ASoC: failed to instantiate card -19
[ 9.892955] mxs-sgtl5000 sound.12: snd_soc_register_card failed (-19)
Cc: <stable@vger.kernel.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Marek Vasut <marex@denx.de>
[wsa: we have a proper solution for -next, so this non intrusive
solution is OK for now]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The following is needed as well to fix warning/error about shifting a 32 bit
value 32 bits which occurs if building on 32 bit platform caused by conversion
to using dma_addr_t
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
1) Fix a long term race in the IIO trigger handling.
This only effects cases where a single trigger is in use
by multiple devices.
2) ti_am335x fix an issue with incorrect data due to reading before
the sequencer is finished.
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Merge tag 'iio-fixes-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
Second round of IIO fixes for the 3.11 cycle.
1) Fix a long term race in the IIO trigger handling.
This only effects cases where a single trigger is in use
by multiple devices.
2) ti_am335x fix an issue with incorrect data due to reading before
the sequencer is finished.
Hi Greg,
Here's two small fixes for 3.11. The first patch fixes a 5 second hang in
khubd after a USB device disconnect on some xHCI hosts. The second fixes a
build warning.
Sarah Sharp
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Merge tag 'for-usb-linus-2013-07-31' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus
Sarah writes:
xhci: Misc bug fixes for 3.11.
Hi Greg,
Here's two small fixes for 3.11. The first patch fixes a 5 second hang in
khubd after a USB device disconnect on some xHCI hosts. The second fixes a
build warning.
Sarah Sharp
This old driver never checked for DMA mapping errors.
Causing splats with the new DMA mapping checks:
WARNING: at lib/dma-debug.c:937 check_unmap+0x47b/0x930()
skge 0000:01:09.0: DMA-API: device driver failed to check map
Add checks and unwind code.
Reported-by: poma <pomidorabelisima@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the _BCL package ordering is descending, the first level
(br->levels[2]) is likely to be 0, and if the number of levels
matches the number of steps, we might confuse a returned level to
mean the index.
For example:
current_level = max_level = 100
test_level = 0
returned level = 100
In this case 100 means the level, not the index, and _BCM failed.
Still, if the _BCL package ordering is descending, the index of
level 0 is also 100, so we assume _BQC is indexed, when it's not.
This causes all _BQC calls to return bogus values causing weird
behavior from the user's perspective. For example:
xbacklight -set 10; xbacklight -set 20;
would flash to 90% and then slowly down to the desired level (20).
The solution is simple; test anything other than the first level
(e.g. 1).
[rjw: Changelog]
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Lager board: do not annotate gpio_buttons as __initdata
- This avoids accessing uninitialised memory if keys are pressed
after kernel initialisation completes.
- Bug introduced in gpio-keys were enabled in v3.11-rc1
* Bock-W board: fix SDHI0 PFC settings
- Allow detection of SD card
- Bug introduced in SDHI support was added in v3.11-rc1
* shdma: fixup sh_dmae_get_partial() calculation error
- Bug introduced in 2.6.34-rc1.
* armadillo800eva board: Don't request GPIO 166 in board code
- Allow use of touchscreen
- Bug introduced in v3.11-rc1
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Merge tag 'renesas-fixes2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
From Simon Horman:
Second round of Renesas ARM based SoC fixes for v3.11
* Lager board: do not annotate gpio_buttons as __initdata
- This avoids accessing uninitialised memory if keys are pressed
after kernel initialisation completes.
- Bug introduced in gpio-keys were enabled in v3.11-rc1
* Bock-W board: fix SDHI0 PFC settings
- Allow detection of SD card
- Bug introduced in SDHI support was added in v3.11-rc1
* shdma: fixup sh_dmae_get_partial() calculation error
- Bug introduced in 2.6.34-rc1.
* armadillo800eva board: Don't request GPIO 166 in board code
- Allow use of touchscreen
- Bug introduced in v3.11-rc1
* tag 'renesas-fixes2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: lager: do not annotate gpio_buttons as __initdata
ARM: shmobile: BOCK-W: fix SDHI0 PFC settings
shdma: fixup sh_dmae_get_partial() calculation error
ARM: shmobile: armadillo800eva: Don't request GPIO 166 in board code
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull dmaengine fixes from Vinod Koul:
"Two fixes for slave dmaengine. The first fixes cyclic dma transfers
for pl330 and the second one makes us return the correct error code on
probe"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma: pl330: Fix cyclic transfers
pch_dma: fix error return code in pch_dma_probe()
Pull networking fixes from David Miller:
1) Don't ignore user initiated wireless regulatory settings on cards
with custom regulatory domains, from Arik Nemtsov.
2) Fix length check of bluetooth information responses, from Jaganath
Kanakkassery.
3) Fix misuse of PTR_ERR in btusb, from Adam Lee.
4) Handle rfkill properly while iwlwifi devices are offline, from
Emmanuel Grumbach.
5) Fix r815x devices DMA'ing to stack buffers, from Hayes Wang.
6) Kernel info leak in ATM packet scheduler, from Dan Carpenter.
7) 8139cp doesn't check for DMA mapping errors, from Neil Horman.
8) Fix bridge multicast code to not snoop when no querier exists,
otherwise mutlicast traffic is lost. From Linus Lüssing.
9) Avoid soft lockups in fib6_run_gc(), from Michal Kubecek.
10) Fix races in automatic address asignment on ipv6, which can result
in incorrect lifetime assignments. From Jiri Benc.
11) Cure build bustage when CONFIG_NET_LL_RX_POLL is not set and rename
it CONFIG_NET_RX_BUSY_POLL to eliminate the last reference to the
original naming of this feature. From Cong Wang.
12) Fix crash in TIPC when server socket creation fails, from Ying Xue.
13) macvlan_changelink() silently succeeds when it shouldn't, from
Michael S Tsirkin.
14) HTB packet scheduler can crash due to sign extension, fix from
Stephen Hemminger.
15) With the cable unplugged, r8169 prints out a message every 10
seconds, make it netif_dbg() instead of netif_warn(). From Peter
Wu.
16) Fix memory leak in rtm_to_ifaddr(), from Daniel Borkmann.
17) sis900 gets spurious TX queue timeouts due to mismanagement of link
carrier state, from Denis Kirjanov.
18) Validate somaxconn sysctl to make sure it fits inside of a u16.
From Roman Gushchin.
19) Fix MAC address filtering on qlcnic, from Shahed Shaikh.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (68 commits)
qlcnic: Fix for flash update failure on 83xx adapter
qlcnic: Fix link speed and duplex display for 83xx adapter
qlcnic: Fix link speed display for 82xx adapter
qlcnic: Fix external loopback test.
qlcnic: Removed adapter series name from warning messages.
qlcnic: Free up memory in error path.
qlcnic: Fix ingress MAC learning
qlcnic: Fix MAC address filter issue on 82xx adapter
net: ethernet: davinci_emac: drop IRQF_DISABLED
netlabel: use domain based selectors when address based selectors are not available
net: check net.core.somaxconn sysctl values
sis900: Fix the tx queue timeout issue
net: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails
r8169: remove "PHY reset until link up" log spam
net: ethernet: cpsw: drop IRQF_DISABLED
htb: fix sign extension bug
macvlan: handle set_promiscuity failures
macvlan: better mode validation
tipc: fix oops when creating server socket fails
net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL
...
Peter Wu