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skb->ip_summed should be CHECKSUM_UNNECESSARY when the driver reports that
checksums were correct and CHECKSUM_NONE in any other case. They're
currently placed vice versa, which breaks the forwarding scenario. Fix it
by placing them as described above.
Signed-off-by: Veaceslav Falico <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Remove duplicated include.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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Since commit a1fd287780c8e91fed4957b30c757b0c93021162:
"[media] bttv-driver: fix two warnings"
cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32
resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use
the full advertised height, the resulting image is broken in ways only a
screenshot can describe.
The cause of this is the fix for this warning:
drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init]
In this chunk of the commit:
@@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
/* totalwidth */ 1135,
/* sqwidth */ 944,
/* vdelay */ 0x20,
- /* sheight */ 576,
- /* videostart0 */ 23)
/* bt878 (and bt848?) can capture another
line below active video. */
- .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
+ /* sheight */ (576 + 2) + 0x20 - 2,
+ /* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
.name = "NTSC",
Which replaces the overriding of cropcap.bounds.height initialization outside
of the CROPCAP macro (which also initializes it), with passing a
different sheight value to the CROPCAP macro.
There are 2 problems with this warning fix:
1) The sheight value is used twice in the CROPCAP macro, and the old code
only changed one resulting value.
2) The old code increased the .cropcap.bounds.height value (and did not
touch the .cropcap.defrect.height value at all) by 2, where as the fixed
code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2
to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so
now is done twice for .cropcap.bounds.height, and also is applied to
.cropcap.defrect.height where it should not be applied at all.
This patch fixes this by adding an extraheight parameter to the CROPCAP entry
and using it for the PAL entry.
Cc: [email protected] # For Kernel 3.8
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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When a multi-threaded init exits and the initial thread is not the
last thread to exit the initial thread hangs around as a zombie
until the last thread exits. In that case zap_pid_ns_processes
needs to wait until there are only 2 hashed pids in the pid
namespace not one.
v2. Replace thread_pid_vnr(me) == 1 with the test thread_group_leader(me)
as suggested by Oleg.
Cc: [email protected]
Cc: Oleg Nesterov <[email protected]>
Reported-by: Caj Larsson <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
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For 82576 MAC type, max_adj is reported as 1000000000 ppb. However, if
this value is passed to igb_ptp_adjfreq_82576, incvalue overflows out of
INCVALUE_82576_MASK, resulting in setting of zero TIMINCA.incvalue, stopping
the PHC (instead of going at twice the nominal speed).
Fix the advertised max_adj value to the largest value hardware can handle.
As there is no min_adj value available (-max_adj is used instead), this will
also prevent stopping the clock intentionally. It's probably not a big deal,
other igb MAC types don't support stopping the clock, either.
Signed-off-by: Jiri Benc <[email protected]>
Acked-by: Matthew Vick <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Trivial sparse warning.
Signed-off-by: Stephen Hemminger <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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igb is ineffective at setting a lower total VFs because:
int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
{
...
/* Shouldn't change if VFs already enabled */
if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE)
return -EBUSY;
Swap init ordering.
Signed-off-by: Alex Williamson <[email protected]>
Acked-by: Greg Rose <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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The max_vfs= option has always been self limiting to the number of VFs
supported by the device. fa44f2f1 added SR-IOV configuration via
sysfs, but in the process broke this self correction factor. The
failing path is:
igb_probe
igb_sw_init
if (max_vfs > 7) {
adapter->vfs_allocated_count = 7;
...
igb_probe_vfs
igb_enable_sriov(, max_vfs)
if (num_vfs > 7) {
err = -EPERM;
...
This leaves vfs_allocated_count = 7 and vf_data = NULL, so we bomb out
when igb_probe finally calls igb_reset. It seems like a really bad
idea, and somewhat pointless, to set vfs_allocated_count separate from
vf_data, but limiting max_vfs is enough to avoid the null pointer.
Signed-off-by: Alex Williamson <[email protected]>
Acked-by: Greg Rose <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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Fix a problem in i350 where anti spoofing configuration was written into a
wrong register.
Signed-off-by: Lior Levy <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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When the ixgbevf driver is opened the request to allocate MSIX irq
vectors may fail. In that case the driver will call ixgbevf_down()
which will call ixgbevf_irq_disable() to clear the HW interrupt
registers and calls synchronize_irq() using the msix_entries pointer in
the adapter structure. However, when the function to request the MSIX
irq vectors failed it had already freed the msix_entries which causes
an OOPs from using the NULL pointer in synchronize_irq().
The calls to pci_disable_msix() and to free the msix_entries memory
should not occur if device open fails. Instead they should be called
during device driver removal to balance with the call to
pci_enable_msix() and the call to allocate msix_entries memory
during the device probe and driver load.
Signed-off-by: Li Xun <[email protected]>
Signed-off-by: Greg Rose <[email protected]>
Tested-by: Sibai Li <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
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This patch removes dynamic allocation on the stack error.
Signed-off-by: Philip J Kelleher <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A single bugfix which prevents that a non functional timer device is
selected to provide the fallback device, which is supposed to serve
timer interrupts on behalf of non functional devices ..."
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clockevents: Don't allow dummy broadcast timers
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The Boot ROM has an issue which will cause the driver to
lock up as pending irqs are not being cleared. With them
cleared it prevents that issue.
This patch is needed for the current (3.9-rc3) mainline kernel. I guess
it went unnoticed, because it was only tested with u-boot up until now.
And u-boot maybe handles this.
[[email protected]: cherry-picked from linux-xlnx.git]
Signed-off-by: Steffen Trumtrar <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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They were introduced by mistake in 3.7. Let's deprecate them now. For
the reasons, see the text in Kconfig below.
Signed-off-by: Jiri Slaby <[email protected]>
Cc: Josh Boyer <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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In 3.7 the 8250 module name was changed unintentionally from 8250 to
8250_core by commit 835d844d1a28efba81d5aca7385e24c29d3a6db2
(8250_pnp: do pnp probe before legacy probe). We then had to
re-introduce the old module options to ensure the old good
8250.nr_uart & co. still work. This can be done only by a very dirty
hack and we did it in f2b8dfd9e480c3db3bad0c25c590a5d11b31f4ef
(serial: 8250: Keep 8250.<xxxx> module options functional after driver
rename).
That is so damn ugly so that I decided to revert to the old module
name and deprecate the new 8250_core options present in 3.7 and 3.8
only. The deprecation will happen in the following patch.
Note that this patch changes the hack above to support "8250_core.*",
because we now have "8250.*" natively.
Signed-off-by: Jiri Slaby <[email protected]>
Cc: Josh Boyer <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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For 32-bit, CONFIG_EPAPR_PARAVIRT pulls in both epapr_paravirt.c
and epapr_hcalls.c which contains the 32-bit paravirt idle loop.
For 64-bit, the paravirt idle loop is in idle_book3e.S and that
source file is included only if CONFIG_PPC_BOOK3E_64 defined.
This patch makes that dependency for 64-bit explicit.
Fixes these build errors:
arch/powerpc/kernel/built-in.o: In function `restore_pblist_ptr':
ftrace.c:(.toc+0xdc0): undefined reference to `epapr_ev_idle_start'
ftrace.c:(.toc+0xdd0): undefined reference to `epapr_ev_idle'
Signed-off-by: Stuart Yoder <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
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[Description written by Alan Stern]
Soeren tracked down a very difficult bug in ehci-hcd's DMA pool
management of iTD and siTD structures. Some background: ehci-hcd
gives each isochronous endpoint its own set of active and free itd's
(or sitd's for full-speed devices). When a new itd is needed, it is
taken from the head of the free list, if possible. However, itd's
must not be used twice in a single frame because the hardware
continues to access the data structure for the entire duration of a
frame. Therefore if the itd at the head of the free list has its
"frame" member equal to the current value of ehci->now_frame, it
cannot be reused and instead a new itd is allocated from the DMA pool.
The entries on the free list are not released back to the pool until
the endpoint is no longer in use.
The bug arises from the fact that sometimes an itd can be moved back
onto the free list before itd->frame has been set properly. In
Soeren's case, this happened because ehci-hcd can allocate one more
itd than it actually needs for an URB; the extra itd may or may not be
required depending on how the transfer aligns with a frame boundary.
For example, an URB with 8 isochronous packets will cause two itd's to
be allocated. If the URB is scheduled to start in microframe 3 of
frame N then it will require both itds: one for microframes 3 - 7 of
frame N and one for microframes 0 - 2 of frame N+1. But if the URB
had been scheduled to start in microframe 0 then it would require only
the first itd, which could cover microframes 0 - 7 of frame N. The
second itd would be returned to the end of the free list.
The itd allocation routine initializes the entire structure to 0, so
the extra itd ends up on the free list with itd->frame set to 0
instead of a meaningful value. After a while the itd reaches the head
of the list, and occasionally this happens when ehci->now_frame is
equal to 0. Then, even though it would be okay to reuse this itd, the
driver thinks it must get another itd from the DMA pool.
For as long as the isochronous endpoint remains in use, this flaw in
the mechanism causes more and more itd's to be taken slowly from the
DMA pool. Since none are released back, the pool eventually becomes
exhausted.
This reuslts in memory allocation failures, which typically show up
during a long-running audio stream. Video might suffer the same
effect.
The fix is very simple. To prevent allocations from the pool when
they aren't needed, make sure that itd's sent back to the free list
prematurely have itd->frame set to an invalid value which can never be
equal to ehci->now_frame.
This should be applied to -stable kernels going back to 3.6.
Signed-off-by: Soeren Moch <[email protected]>
Signed-off-by: Alan Stern <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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For the s626 driver, there is a bug in the handling of asynchronous
commands on the AI subdevice when the stop source is `TRIG_NONE`. The
command should run continuously until cancelled, but the interrupt
handler stops the command running after the first scan.
The command set-up function `s626_ai_cmd()` contains this code:
switch (cmd->stop_src) {
case TRIG_COUNT:
/* data arrives as one packet */
devpriv->ai_sample_count = cmd->stop_arg;
devpriv->ai_continous = 0;
break;
case TRIG_NONE:
/* continous acquisition */
devpriv->ai_continous = 1;
devpriv->ai_sample_count = 0;
break;
}
The interrupt handler `s626_irq_handler()` contains this code:
if (!(devpriv->ai_continous))
devpriv->ai_sample_count--;
if (devpriv->ai_sample_count <= 0) {
devpriv->ai_cmd_running = 0;
/* ... */
}
So `devpriv->ai_sample_count` is only decremented for the `TRIG_COUNT`
case, but `devpriv->ai_cmd_running` is set to 0 (and the command
stopped) regardless.
Fix this in `s626_ai_cmd()` by setting `devpriv->ai_sample_count = 1`
for the `TRIG_NONE` case. The interrupt handler will not decrement it
so it will remain greater than 0 and the check for stopping the
acquisition will fail.
Cc: stable <[email protected]>
Signed-off-by: Ian Abbott <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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When config options are:
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=m
CONFIG_I2C=m
Compilation breaks, as reported by:
https://bugzilla.kernel.org/show_bug.cgi?id=55681
Before changeset 7b34be71db533f3e0cf93d53cf62d036cdb5418a,
no compilation errors occurred. However, the I2C code there at
v4l2-device was incorrectly disabled.
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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The 'CONFIG_' prefix is not implicit in IS_ENABLED().
Signed-off-by: Ben Hutchings <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Paul Bolle <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
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Signed-off-by: Hong Zhiguo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When a device attached to the roothub is suspended, the endpoint rings
are stopped. The host may generate a completion event with the
completion code set to 'Stopped' or 'Stopped Invalid' when the ring is
halted. The current xHCI code prints a warning in that case, which can
be really annoying if the USB device is coming into and out of suspend.
Remove the unnecessary warning.
Signed-off-by: Sarah Sharp <[email protected]>
Tested-by: Stephen Hemminger <[email protected]>
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Use proper macro while extracting TRB transfer length from
Transfer event TRBs. Adding a macro EVENT_TRB_LEN (bits 0:23)
for the same, and use it instead of TRB_LEN (bits 0:16) in
case of event TRBs.
This patch should be backported to kernels as old as 2.6.31, that
contain the commit b10de142119a676552df3f0d2e3a9d647036c26a "USB: xhci:
Bulk transfer support". This patch will have issues applying to older
kernels.
Signed-off-by: Vivek gautam <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
Cc: [email protected]
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This patch is to bind xhci root hub usb port with its acpi node.
The port num in the acpi table matches with the sequence in the xhci
extended capabilities table. So call usb_hcd_find_raw_port_number() to
transfer hub port num into raw port number which associates with
the sequence in the xhci extended capabilities table before binding.
Signed-off-by: Lan Tianyu <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
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xhci driver divides the root hub into two logical hubs which work
respectively for usb 2.0 and usb 3.0 devices. They are independent
devices in the usb core. But in the ACPI table, it's one device node
and all usb2.0 and usb3.0 ports are under it. Binding usb port with
its acpi node needs the raw port number which is reflected in the xhci
extended capabilities table. This patch is to add find_raw_port_number
callback to struct hc_driver(), fill it with xhci_find_raw_port_number()
which will return raw port number and add a wrap usb_hcd_find_raw_port_number().
Otherwise, refactor xhci_find_real_port_number(). Using
xhci_find_raw_port_number() to get real index in the HW port status
registers instead of scanning through the xHCI roothub port array.
This can help to speed up.
All addresses in xhci->usb2_ports and xhci->usb3_ports array are
kown good ports and don't include following bad ports in the extended
capabilities talbe.
(1) root port that doesn't have an entry
(2) root port with unknown speed
(3) root port that is listed twice and with different speeds.
So xhci_find_raw_port_number() will only return port num of good ones
and never touch bad ports above.
Signed-off-by: Lan Tianyu <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
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/home/b29397/work/code/git/linus/linux-2.6/drivers/usb/host/xhci-ring.c: In function ‘handle_port_status’:
/home/b29397/work/code/git/linus/linux-2.6/drivers/usb/host/xhci-ring.c:1580: warning: ‘hcd’ may be used uninitialized in this function
Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
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As reported by Jan, and others over the past few years, there is a
race condition caused by unix_release setting the sock->sk pointer
to NULL before properly marking the socket as dead/orphaned. This
can cause a problem with the LSM hook security_unix_may_send() if
there is another socket attempting to write to this partially
released socket in between when sock->sk is set to NULL and it is
marked as dead/orphaned. This patch fixes this by only setting
sock->sk to NULL after the socket has been marked as dead; I also
take the opportunity to make unix_release_sock() a void function
as it only ever returned 0/success.
Dave, I think this one should go on the -stable pile.
Special thanks to Jan for coming up with a reproducer for this
problem.
Reported-by: Jan Stancek <[email protected]>
Signed-off-by: Paul Moore <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma fixes from Roland Dreier:
"Small batch of InfiniBand/RDMA fixes for 3.9:
- Fix for TX lockup in IPoIB
- QLogic -> Intel update for qib driver
- Small static checker fix for qib
- Fix error path return value in cxgb4"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: change QLogic to Intel
IB/ipath: Silence a static checker warning
IPoIB: Fix send lockup due to missed TX completion
RDMA/cxgb4: Fix error return code in create_qp()
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Pull ARM SoC bug fixes from Arnd Bergmann:
"Four patches for arm-soc this week:
- Kevin Hilman is no longer reachable under his previous email
address. He submitted the patch earlier, but nobody felt
responsible to pick it up.
- One Tegra fix for an incorect register address in device tree.
- IMX multiplatform support exposes a configuration option that leads
to unbootable kernels on all other machines and that needs to
depend on that platform.
- A nontrivial bug fix for the setup of the mxs video output."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: update email address for Kevin Hilman
ARM: tegra: fix register address of slink controller
ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
ARM: video: mxs: Fix mxsfb misconfiguring VDCTRL0
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Pull nfsd bugfixes from J Bruce Fields:
"Fixes for a couple mistakes in the new DRC code. And thanks to Kent
Overstreet for noticing we've been sync'ing the wrong range on stable
writes since 3.8."
* 'for-3.9' of git://linux-nfs.org/~bfields/linux:
nfsd: fix bad offset use
nfsd: fix startup order in nfsd_reply_cache_init
nfsd: only unhash DRC entries that are in the hashtable
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We need to be careful when testing task->tk_waitqueue in
rpc_wake_up_task_queue_locked, because it can be changed while we
are holding the queue->lock.
By adding appropriate memory barriers, we can ensure that it is safe to
test task->tk_waitqueue for equality if the RPC_TASK_QUEUED bit is set.
Signed-off-by: Trond Myklebust <[email protected]>
Cc: [email protected]
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With the addition of following patch:
fcf8058 cpufreq: Simplify cpufreq_add_dev()
cpufreq driver's .init() routine must initialize policy->cpus with
mask of all possible CPUs (Online + Offline) that share the clock.
Then the core would copy this mask onto policy->related_cpus and will
reset policy->cpus to carry only online cpus.
acpi-cpufreq driver wasn't updated with this assumption and so
sometimes when we try to hot[un]plug CPUs at run time, sysfs
directories get corrupted.
This patch fixes acpi-cpufreq driver against this corruption.
Reported-and-tested-by: Maciej Rutecki <[email protected]>
Tested-by: Borislav Petkov <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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In cpufreq_stats_free_sysfs() we aren't balancing calls to
cpufreq_cpu_get() with cpufreq_cpu_put(). This will never let us have
ref count to policy->kobj as zero.
We will get a hang if somehow cpufreq_driver_unregister() is called.
And that can happen when we compile our driver as module and
insmod/rmmod it.
Signed-off-by: Viresh Kumar <[email protected]>
Acked-by: Amit Kucheria <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.
Let's use those.
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Acked-by: Dirk Brandewie <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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Use the correct pstate value to calculate the effective frequency.
References: https://bugzilla.redhat.com/show_bug.cgi?id=923942
Reported-by: Satish Balay <[email protected]>
Signed-off-by: Dirk Brandewie <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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Some VMs seem to try to implement some MSRs but not all the registers
the driver needs. Check to make sure all the MSR that we need are
available. If any of the required MSRs are not available refuse to
load.
References: https://bugzilla.redhat.com/show_bug.cgi?id=922923
Reported-by: Josh Stone <[email protected]>
Signed-off-by: Dirk Brandewie <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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Pull drm fixes from Dave Airlie:
"Exynos and Intel fixes.
The intel fixes are fairly straightforward, mostly reverts due to bugs
found. The exynos one is a big larger since they found some issues
with the G2D engine and iommu interaction, and needed to verify the
operations a lot better than they were previously, otherwise a user
app can just crash the kernel with an iommu fault."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/i915: write backlight harder"
drm/i915: don't disable the power well yet
Revert "drm/i915: set TRANSCODER_EDP even earlier"
drm/exynos: Check g2d cmd list for g2d restrictions
drm/exynos: Add a new function to get gem buffer size
drm/exynos: Deal with g2d buffer info more efficiently
drm/exynos: Clean up some G2D codes for readability
drm/exynos: Fix G2D core malfunctioning issue
drm/exynos: clear node object type at gem unmap
drm/exynos: Fix error routine to getting dma addr.
drm/exynos: Replaced kzalloc & memcpy with kmemdup
drm/exynos: fimd: calculate the correct address offset
drm/exynos: Make mixer_check_timing static
drm/exynos: modify the compatible string for exynos fimd
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The FWNMI region is fixed at 0x7000 and the vector are now overflowing
that with allmodconfig. Fix that by moving slb_miss_realmode code out
of that region as it doesn't need to be that close to the call sites
(it is a _GLOBAL function)
Fixes this build error:
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1304: Error: attempt to move .org backwards
Signed-off-by: Chen Gang <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
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git://people.freedesktop.org/~danvet/drm-intel into HEAD
Daniel writes:
"Just three revert/disable by default patches, one of them cc: stable
(since the offending commit was cc: stable, too)."
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
Revert "drm/i915: write backlight harder"
drm/i915: don't disable the power well yet
Revert "drm/i915: set TRANSCODER_EDP even earlier"
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into HEAD
Inki writes:
Includes bug fixes and code cleanups.
And it considers some restrictions to G2D hardware.
With this, the malfunction and page fault issues to g2d driver
would be fixed.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: Check g2d cmd list for g2d restrictions
drm/exynos: Add a new function to get gem buffer size
drm/exynos: Deal with g2d buffer info more efficiently
drm/exynos: Clean up some G2D codes for readability
drm/exynos: Fix G2D core malfunctioning issue
drm/exynos: clear node object type at gem unmap
drm/exynos: Fix error routine to getting dma addr.
drm/exynos: Replaced kzalloc & memcpy with kmemdup
drm/exynos: fimd: calculate the correct address offset
drm/exynos: Make mixer_check_timing static
drm/exynos: modify the compatible string for exynos fimd
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On SACK reneging the sender immediately retransmits and forces a
timeout but disables Eifel (undo). If the (buggy) receiver does not
drop any packet this can trigger a false slow-start retransmit storm
driven by the ACKs of the original packets. This can be detected with
undo and TCP timestamps.
Signed-off-by: Yuchung Cheng <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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fix for incorrect assignment of signed expression to unsigned variable.
Signed-off-by: Kumar Amit Mehta <[email protected]>
Acked-by: Dmitry Kravkov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When I tried to set mac address of a bridge interface to a mac
address which already learned on this bridge, I got system hang.
The cause is straight forward: function br_fdb_change_mac_address
calls fdb_insert with NULL source nbp. Then an fdb lookup is
performed. If an fdb entry is found and it's local, it's OK. But
if it's not local, source is dereferenced for printk without NULL
check.
Signed-off-by: Hong Zhiguo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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vlan_vid_del() could possibly free ->vlan_info after a RCU grace
period, however, we may still refer to the freed memory area
by 'grp' pointer. Found by code inspection.
This patch moves vlan_vid_del() as behind as possible.
Cc: Patrick McHardy <[email protected]>
Cc: "David S. Miller" <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The WARN_ON(in_interrupt()) in net_enable_timestamp() can get false
positive, in socket clone path, run from softirq context :
[ 3641.624425] WARNING: at net/core/dev.c:1532 net_enable_timestamp+0x7b/0x80()
[ 3641.668811] Call Trace:
[ 3641.671254] <IRQ> [<ffffffff80286817>] warn_slowpath_common+0x87/0xc0
[ 3641.677871] [<ffffffff8028686a>] warn_slowpath_null+0x1a/0x20
[ 3641.683683] [<ffffffff80742f8b>] net_enable_timestamp+0x7b/0x80
[ 3641.689668] [<ffffffff80732ce5>] sk_clone_lock+0x425/0x450
[ 3641.695222] [<ffffffff8078db36>] inet_csk_clone_lock+0x16/0x170
[ 3641.701213] [<ffffffff807ae449>] tcp_create_openreq_child+0x29/0x820
[ 3641.707663] [<ffffffff807d62e2>] ? ipt_do_table+0x222/0x670
[ 3641.713354] [<ffffffff807aaf5b>] tcp_v4_syn_recv_sock+0xab/0x3d0
[ 3641.719425] [<ffffffff807af63a>] tcp_check_req+0x3da/0x530
[ 3641.724979] [<ffffffff8078b400>] ? inet_hashinfo_init+0x60/0x80
[ 3641.730964] [<ffffffff807ade6f>] ? tcp_v4_rcv+0x79f/0xbe0
[ 3641.736430] [<ffffffff807ab9bd>] tcp_v4_do_rcv+0x38d/0x4f0
[ 3641.741985] [<ffffffff807ae14a>] tcp_v4_rcv+0xa7a/0xbe0
Its safe at this point because the parent socket owns a reference
on the netstamp_needed, so we cant have a 0 -> 1 transition, which
requires to lock a mutex.
Instead of refining the check, lets remove it, as all known callers
are safe. If it ever changes in the future, static_key_slow_inc()
will complain anyway.
Reported-by: Laurent Chavey <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"Here are a few pinctrl fixes for the v3.9 rc series:
- Usecount bounds checking so we do not go below zero on mux
usecounts.
- Loop range checking in GPIO ranges in the DT range parser.
- Proper print in debugfs for pinconf state.
- Fix compilation bug in generic pinconf code.
- Minor bugfixes to abx500 and mvebu drivers."
* tag 'pinctrl-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinmux: forbid mux_usecount to be set at UINT_MAX
pinctrl: mvebu: fix checking for SoC specific controls
pinctrl: generic: Fix compilation error
pinctrl: Print the correct information in debugfs pinconf-state file
pinctrl: abx500: Fix checking if pin use AlternateFunction register
gpio: fix wrong checking condition for gpio range
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"A collection of minor fixes, more EFI variables paranoia
(anti-bricking) plus the ability to disable the pstore either as a
runtime default or completely, due to bricking concerns."
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efivars: Fix check for CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE
x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
efivars: Handle duplicate names from get_next_variable()
efivars: explicitly calculate length of VariableName
efivars: Add module parameter to disable use as a pstore backend
efivars: Allow disabling use as a pstore backend
x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
x86-64: Fix the failure case in copy_user_handle_tail()
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This reverts commit cf0a6584aa6d382f802f2c3cacac23ccbccde0cd.
Turns out that cargo-culting breaks systems. Note that we can't revert
further, since
commit 770c12312ad617172b1a65b911d3e6564fc5aca8
Author: Takashi Iwai <[email protected]>
Date: Sat Aug 11 08:56:42 2012 +0200
drm/i915: Fix blank panel at reopening lid
fixed a regression in 3.6-rc kernels for which we've never figured out
the exact root cause. But some further inspection of the backlight
code reveals that it's seriously lacking locking. And especially the
asle backlight update is know to get fired (through some smm magic)
when writing specific backlight control registers. So the possibility
of suffering from races is rather real.
Until those races are fixed I don't think it makes sense to try
further hacks. Which sucks a bit, but sometimes that's how it is :(
References: http://www.mail-archive.com/[email protected]/msg18788.html
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47941
Tested-by: Takashi Iwai <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: [email protected] (the reverted commit was cc: stable, too)
Signed-off-by: Daniel Vetter <[email protected]>
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We're still not 100% ready to disable the power well, so don't disable
it for now. When we disable it we break the audio driver (because some
of the audio registers are on the power well) and machines with eDP on
port D (because it doesn't use TRANSCODER_EDP).
Also, instead of just reverting the code, add a Kernel option to let
us disable it if we want. This will allow us to keep developing and
testing the feature while it's not enabled.
This fixes problems caused by the following commit:
commit d6dd9eb1d96d2b7345fe4664066c2b7ed86da898
Author: Daniel Vetter <[email protected]>
Date: Tue Jan 29 16:35:20 2013 -0200
drm/i915: dynamic Haswell display power well support
References: http://www.mail-archive.com/[email protected]/msg18788.html
Cc: Takashi Iwai <[email protected]>
Cc: Mengdong Lin <[email protected]>
Signed-off-by: Paulo Zanoni <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
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This reverts commit cc464b2a17c59adedbdc02cc54341d630354edc3.
The reason is that Takashi Iwai reported a regression bisected to this
commit:
http://www.mail-archive.com/[email protected]/msg18788.html
His machine has eDP on port D (usual desktop all-in-on setup), which
intel_dp.c identifies as an eDP panel, but the hsw ddi code
mishandles.
Closer inspection of the code reveals that haswell_crtc_mode_set also
checks intel_encoder_is_pch_edp when setting is_cpu_edp. On haswell
that doesn't make much sense (since there's no edp on the pch), but
what this function _really_ checks is whether that edp connector is on
port A or port D. It's just that on ilk-ivb port D was on the pch ...
So that explains why this seemingly innocent change killed eDP on port
D. Furthermore it looks like everything else accidentally works, since
we've never enabled eDP on port D support for hsw intentionally (e.g.
we still register the HDMI output for port D in that case).
But in retrospective I also don't like that this leaks highly platform
specific details into common code, and the reason is that the drm
vblank layer sucks. So instead I think we should:
- move the cpu_transcoder into the dynamic pipe_config tracking (once
that's merged).
- fix up the drm vblank layer to finally deal with kms crtc objects
instead of int pipes.
v2: Pimp commit message with the better diagnosis as discussed with
Paulo on irc.
Cc: Paulo Zanoni <[email protected]>
Cc: Takashi Iwai <[email protected]>
Reviewed-by: Paulo Zanoni <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
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