tjh.dev
commits
Pull SCSI fix from James Bottomley:
"This is a bug fix for the pm80xx driver. It turns out that when the
new hardware support was added in 3.10 the IO command size was kept at
the old hard coded value. This means that the driver attaches to some
new cards and then simply hangs the system"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] pm80xx: fix Adaptec 71605H hang
Pull x86 boot fix from Peter Anvin:
"A single very small boot fix for very large memory systems (> 0.5T)"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix boot crash with DEBUG_PAGE_ALLOC=y and more than 512G RAM
The IO command size is 128 bytes for these new controllers as opposed to 64
for the old 8001 controller.
The Adaptec out-of-tree driver did this correctly. After comparing the two
this turned out to be the crucial difference.
So don't hardcode the IO command size, instead use pm8001_ha->iomb_size as
that is the correct value for both old and new controllers.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Cc: stable@vger.kernel.org # for v3.10 and up
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull slave-dma fix from Vinod Koul:
"A fix for resolving TI_EDMA driver's build error in allmodconfig to
have filter function built in""
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma/Kconfig: TI_EDMA needs to be boolean
Dave Hansen reported that systems between 500G and 600G RAM
crash early if DEBUG_PAGEALLOC is selected.
> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k
> [ 0.000000] BRK [0x02086000, 0x02086fff] PGTABLE
> [ 0.000000] BRK [0x02087000, 0x02087fff] PGTABLE
> [ 0.000000] BRK [0x02088000, 0x02088fff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0xe80ee00000-0xe80effffff]
> [ 0.000000] [mem 0xe80ee00000-0xe80effffff] page 4k
> [ 0.000000] BRK [0x02089000, 0x02089fff] PGTABLE
> [ 0.000000] BRK [0x0208a000, 0x0208afff] PGTABLE
> [ 0.000000] Kernel panic - not syncing: alloc_low_page: ran out of memory
It turns out that we missed increasing needed pages in BRK to
mapping initial 2M and [0,1M) when we switched to use the #PF
handler to set memory mappings:
> commit 8170e6bed465b4b0c7687f93e9948aca4358a33b
> Author: H. Peter Anvin <hpa@zytor.com>
> Date: Thu Jan 24 12:19:52 2013 -0800
>
> x86, 64bit: Use a #PF handler to materialize early mappings on demand
Before that, we had the maping from [0,512M) in head_64.S, and we
can spare two pages [0-1M). After that change, we can not reuse
pages anymore.
When we have more than 512M ram, we need an extra page for pgd page
with [512G, 1024g).
Increase pages in BRK for page table to solve the boot crash.
Reported-by: Dave Hansen <dave.hansen@intel.com>
Bisected-by: Dave Hansen <dave.hansen@intel.com>
Tested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: <stable@vger.kernel.org> # v3.9 and later
Link: http://lkml.kernel.org/r/1376351004-4015-1-git-send-email-yinghai@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
By popular demand, this patch brings back a couple of sysfs attributes
removed by commit 663e0890e31cb85f0cca5ac1faaee0d2d52880b5
"[SCSI] zfcp: remove access control tables interface".
The content has been irrelevant for years, but the files must be
there forever for whatever user space tools that may rely on them.
Since these files always return a constant value, a new stripped
down show-macro was required. Otherwise build warnings would have
been introduced.
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull networking fixes from David Miller:
1) There was a simplification in the ipv6 ndisc packet sending
attempted here, which avoided using memory accounting on the
per-netns ndisc socket for sending NDISC packets. It did fix some
important issues, but it causes regressions so it gets reverted here
too. Specifically, the problem with this change is that the IPV6
output path really depends upon there being a valid skb->sk
attached.
The reason we want to do this change in some form when we figure out
how to do it right, is that if a device goes down the ndisc_sk
socket send queue will fill up and block NDISC packets that we want
to send to other devices too. That's really bad behavior.
Hopefully Thomas can come up with a better version of this change.
2) Fix a severe TCP performance regression by reverting a change made
to dev_pick_tx() quite some time ago. From Eric Dumazet.
3) TIPC returns wrongly signed error codes, fix from Erik Hugne.
4) Fix OOPS when doing IPSEC over ipv4 tunnels due to orphaning the
skb->sk too early. Fix from Li Hongjun.
5) RAW ipv4 sockets can use the wrong routing key during lookup, from
Chris Clark.
6) Similar to #1 revert an older change that tried to use plain
alloc_skb() for SYN/ACK TCP packets, this broke the netfilter owner
mark which needs to see the skb->sk for such frames. From Phil
Oester.
7) BNX2x driver bug fixes from Ariel Elior and Yuval Mintz,
specifically in the handling of virtual functions.
8) IPSEC path error propagations to sockets is not done properly when
we have v4 in v6, and v6 in v4 type rules. Fix from Hannes Frederic
Sowa.
9) Fix missing channel context release in mac80211, from Johannes Berg.
10) Fix network namespace handing wrt. SCM_RIGHTS, from Andy
Lutomirski.
11) Fix usage of bogus NAPI weight in jme, netxen, and ps3_gelic
drivers. From Michal Schmidt.
12) Hopefully a complete and correct fix for the genetlink dump locking
and module reference counting. From Pravin B Shelar.
13) sk_busy_loop() must do a cpu_relax(), from Eliezer Tamir.
14) Fix handling of timestamp offset when restoring a snapshotted TCP
socket. From Andrew Vagin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
net: fec: fix time stamping logic after napi conversion
net: bridge: convert MLDv2 Query MRC into msecs_to_jiffies for max_delay
mISDN: return -EINVAL on error in dsp_control_req()
net: revert 8728c544a9c ("net: dev_pick_tx() fix")
Revert "ipv6: Don't depend on per socket memory for neighbour discovery messages"
ipv4 tunnels: fix an oops when using ipip/sit with IPsec
tipc: set sk_err correctly when connection fails
tcp: tcp_make_synack() should use sock_wmalloc
bridge: separate querier and query timer into IGMP/IPv4 and MLD/IPv6 ones
ipv6: Don't depend on per socket memory for neighbour discovery messages
ipv4: sendto/hdrincl: don't use destination address found in header
tcp: don't apply tsoffset if rcv_tsecr is zero
tcp: initialize rcv_tstamp for restored sockets
net: xilinx: fix memleak
net: usb: Add HP hs2434 device to ZLP exception table
net: add cpu_relax to busy poll loop
net: stmmac: fixed the pbl setting with DT
genl: Hold reference on correct module while netlink-dump.
genl: Fix genl dumpit() locking.
xfrm: Fix potential null pointer dereference in xdst_queue_output
...
Fix:
arch/arm/common/built-in.o: undefined reference to `edma_filter_fn'
seen with "make ARCH=arm allmodconfig"
Commit 6cba4355 (ARM: edma: Add DT and runtime PM support to the private EDMA
API) adds a dependency on edma_filter_fn() into arch/arm/common/edma.c. Since
this file is always built into the kernel, edma_filter_fn() must be built into
the kernel as well.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
In the previous commit, Richard Genoud fixed proc_root_readdir(), which
had lost the check for whether all of the non-process /proc entries had
been returned or not.
But that in turn exposed _another_ bug, namely that the original readdir
conversion patch had yet another problem: it had lost the return value
of proc_readdir_de(), so now checking whether it had completed
successfully or not didn't actually work right anyway.
This reinstates the non-zero return for the "end of base entries" that
had also gotten lost in commit f0c3b5093add ("[readdir] convert
procfs"). So now you get all the base entries *and* you get all the
process entries, regardless of getdents buffer size.
(Side note: the Linux "getdents" manual page actually has a nice example
application for testing getdents, which can be easily modified to use
different buffers. Who knew? Man-pages can be useful)
Reported-by: Emmanuel Benisty <benisty.e@gmail.com>
Reported-by: Marc Dionne <marc.c.dionne@gmail.com>
Cc: Richard Genoud <richard.genoud@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
BUG: sleeping function called from invalid context at kernel/workqueue.c:2752
in_atomic(): 1, irqs_disabled(): 1, pid: 360, name: zfcperp0.0.1700
CPU: 1 Not tainted 3.9.3+ #69
Process zfcperp0.0.1700 (pid: 360, task: 0000000075b7e080, ksp: 000000007476bc30)
<snip>
Call Trace:
([<00000000001165de>] show_trace+0x106/0x154)
[<00000000001166a0>] show_stack+0x74/0xf4
[<00000000006ff646>] dump_stack+0xc6/0xd4
[<000000000017f3a0>] __might_sleep+0x128/0x148
[<000000000015ece8>] flush_work+0x54/0x1f8
[<00000000001630de>] __cancel_work_timer+0xc6/0x128
[<00000000005067ac>] scsi_device_dev_release_usercontext+0x164/0x23c
[<0000000000161816>] execute_in_process_context+0x96/0xa8
[<00000000004d33d8>] device_release+0x60/0xc0
[<000000000048af48>] kobject_release+0xa8/0x1c4
[<00000000004f4bf2>] __scsi_iterate_devices+0xfa/0x130
[<000003ff801b307a>] zfcp_erp_strategy+0x4da/0x1014 [zfcp]
[<000003ff801b3caa>] zfcp_erp_thread+0xf6/0x2b0 [zfcp]
[<000000000016b75a>] kthread+0xf2/0xfc
[<000000000070c9de>] kernel_thread_starter+0x6/0xc
[<000000000070c9d8>] kernel_thread_starter+0x0/0xc
Apparently, the ref_count for some scsi_device drops down to zero,
triggering device removal through execute_in_process_context(), while
the lldd error recovery thread iterates through a scsi device list.
Unfortunately, execute_in_process_context() decides to immediately
execute that device removal function, instead of scheduling asynchronous
execution, since it detects process context and thinks it is safe to do
so. But almost all calls to shost_for_each_device() in our lldd are
inside spin_lock_irq, even in thread context. Obviously, schedule()
inside spin_lock_irq sections is a bad idea.
Change the lldd to use the proper iterator function,
__shost_for_each_device(), in combination with required locking.
Occurences that need to be changed include all calls in zfcp_erp.c,
since those might be executed in zfcp error recovery thread context
with a lock held.
Other occurences of shost_for_each_device() in zfcp_fsf.c do not
need to be changed (no process context, no surrounding locking).
The problem was introduced in Linux 2.6.37 by commit
b62a8d9b45b971a67a0f8413338c230e3117dff5
"[SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit".
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.37+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Filtering capabilities on my work email are pretty much non-existent and this
has turned out to be something of a firehose...
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit dc975382 "net: fec: add napi support to improve proformance"
converted the fec driver to the napi model. However, that commit
forgot to remove the call to skb_defer_rx_timestamp which is only
needed in non-napi drivers.
(The function napi_gro_receive eventually calls netif_receive_skb,
which in turn calls skb_defer_rx_timestamp.)
This patch should also be applied to the 3.9 and 3.10 kernels.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f0c3b5093add ("[readdir] convert procfs") introduced a bug on the
listing of the proc file-system. The return value of proc_readdir()
isn't tested anymore in the proc_root_readdir function.
This lead to an "interesting" behaviour when we are using the getdents()
system call with a buffer too small: instead of failing, it returns the
first entries of /proc (enough to fill the given buffer), plus the PID
directories.
This is not triggered on glibc (as getdents is called with a 32KB
buffer), but on uclibc, the buffer size is only 1KB, thus some proc
entries are missing.
See https://lkml.org/lkml/2013/8/12/288 for more background.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds wait_event_interruptible_lock_irq_timeout(), which is a
straight-forward descendant of wait_event_interruptible_timeout() and
wait_event_interruptible_lock_irq().
The zfcp driver used to call wait_event_interruptible_timeout()
in combination with some intricate and error-prone locking. Using
wait_event_interruptible_lock_irq_timeout() as a replacement
nicely cleans up that locking.
This rework removes a situation that resulted in a locking imbalance
in zfcp_qdio_sbal_get():
BUG: workqueue leaked lock or atomic: events/1/0xffffff00/10
last function: zfcp_fc_wka_port_offline+0x0/0xa0 [zfcp]
It was introduced by commit c2af7545aaff3495d9bf9a7608c52f0af86fb194
"[SCSI] zfcp: Do not wait for SBALs on stopped queue", which had a new
code path related to ZFCP_STATUS_ADAPTER_QDIOUP that took an early exit
without a required lock being held. The problem occured when a
special, non-SCSI I/O request was being submitted in process context,
when the adapter's queues had been torn down. In this case the bug
surfaced when the Fibre Channel port connection for a well-known address
was closed during a concurrent adapter shut-down procedure, which is a
rare constellation.
This patch also fixes these warnings from the sparse tool (make C=1):
drivers/s390/scsi/zfcp_qdio.c:224:12: warning: context imbalance in
'zfcp_qdio_sbal_check' - wrong count at exit
drivers/s390/scsi/zfcp_qdio.c:244:5: warning: context imbalance in
'zfcp_qdio_sbal_get' - unexpected unlock
Last but not least, we get rid of that crappy lock-unlock-lock
sequence at the beginning of the critical section.
It is okay to call zfcp_erp_adapter_reopen() with req_q_lock held.
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.35+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull sound fixes from Takashi Iwai:
"This contains two Oops fixes (opti9xx and HD-audio) and a simple fixup
for an Acer laptop. All marked as stable patches"
* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: opti9xx: Fix conflicting driver object name
ALSA: hda - Fix NULL dereference with CONFIG_SND_DYNAMIC_MINORS=n
ALSA: hda - Add inverted digital mic fixup for Acer Aspire One
While looking into MLDv1/v2 code, I noticed that bridging code does
not convert it's max delay into jiffies for MLDv2 messages as we do
in core IPv6' multicast code.
RFC3810, 5.1.3. Maximum Response Code says:
The Maximum Response Code field specifies the maximum time allowed
before sending a responding Report. The actual time allowed, called
the Maximum Response Delay, is represented in units of milliseconds,
and is derived from the Maximum Response Code as follows: [...]
As we update timers that work with jiffies, we need to convert it.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Linus Lüssing <linus.luessing@web.de>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.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 gfs2 fixes from Steven Whitehouse:
"Out of these five patches, the one for ensuring that the number of
revokes is not exceeded, and the one for checking the glock is not
already held in gfs2_getxattr are the two most important. The latter
can be triggered by selinux.
The other three patches are very small and fix mostly fairly trivial
issues"
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Check for glock already held in gfs2_getxattr
GFS2: alloc_workqueue() doesn't return an ERR_PTR
GFS2: don't overrun reserved revokes
GFS2: WQ_NON_REENTRANT is meaningless and going away
GFS2: Fix typo in gfs2_create_inode()
There is a nasty bug in the SCSI SG_IO ioctl that in some circumstances
leads to one process writing data into the address space of some other
random unrelated process if the ioctl is interrupted by a signal.
What happens is the following:
- A process issues an SG_IO ioctl with direction DXFER_FROM_DEV (ie the
underlying SCSI command will transfer data from the SCSI device to
the buffer provided in the ioctl)
- Before the command finishes, a signal is sent to the process waiting
in the ioctl. This will end up waking up the sg_ioctl() code:
result = wait_event_interruptible(sfp->read_wait,
(srp_done(sfp, srp) || sdp->detached));
but neither srp_done() nor sdp->detached is true, so we end up just
setting srp->orphan and returning to userspace:
srp->orphan = 1;
write_unlock_irq(&sfp->rq_list_lock);
return result; /* -ERESTARTSYS because signal hit process */
At this point the original process is done with the ioctl and
blithely goes ahead handling the signal, reissuing the ioctl, etc.
- Eventually, the SCSI command issued by the first ioctl finishes and
ends up in sg_rq_end_io(). At the end of that function, we run through:
write_lock_irqsave(&sfp->rq_list_lock, iflags);
if (unlikely(srp->orphan)) {
if (sfp->keep_orphan)
srp->sg_io_owned = 0;
else
done = 0;
}
srp->done = done;
write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
if (likely(done)) {
/* Now wake up any sg_read() that is waiting for this
* packet.
*/
wake_up_interruptible(&sfp->read_wait);
kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
kref_put(&sfp->f_ref, sg_remove_sfp);
} else {
INIT_WORK(&srp->ew.work, sg_rq_end_io_usercontext);
schedule_work(&srp->ew.work);
}
Since srp->orphan *is* set, we set done to 0 (assuming the
userspace app has not set keep_orphan via an SG_SET_KEEP_ORPHAN
ioctl), and therefore we end up scheduling sg_rq_end_io_usercontext()
to run in a workqueue.
- In workqueue context we go through sg_rq_end_io_usercontext() ->
sg_finish_rem_req() -> blk_rq_unmap_user() -> ... ->
bio_uncopy_user() -> __bio_copy_iov() -> copy_to_user().
The key point here is that we are doing copy_to_user() on a
workqueue -- that is, we're on a kernel thread with current->mm
equal to whatever random previous user process was scheduled before
this kernel thread. So we end up copying whatever data the SCSI
command returned to the virtual address of the buffer passed into
the original ioctl, but it's quite likely we do this copying into a
different address space!
As suggested by James Bottomley <James.Bottomley@hansenpartnership.com>,
add a check for current->mm (which is NULL if we're on a kernel thread
without a real userspace address space) in bio_uncopy_user(), and skip
the copy if we're on a kernel thread.
There's no reason that I can think of for any caller of bio_uncopy_user()
to want to do copying on a kernel thread with a random active userspace
address space.
Huge thanks to Costa Sapuntzakis <costa@purestorage.com> for the
original pointer to this bug in the sg code.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Tested-by: David Milburn <dmilburn@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull ARM SoC fixes from Olof Johansson:
"Two straggling fixes that I had missed as they were posted a couple of
weeks ago, causing problems with interrupts (breaking them completely)
on the CSR SiRF platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm: prima2: drop nr_irqs in mach as we moved to linear irqdomain
irqchip: sirf: move from legacy mode to linear irqdomain
The recent commit to delay the release of kobject triggered NULL
dereferences of opti9xx drivers. The cause is that all
snd-opti92x-ad1848, snd-opti92x-cs4231 and snd-opti93x drivers
register the PnP card driver with the very same name, and also
snd-opti92x-ad1848 and -cs4231 drivers register the ISA driver with
the same name, too. When these drivers are built in, quick
"register-release-and-re-register" actions occur, and this results in
Oops because of the same name is assigned to the kobject.
The fix is simply to assign individual names. As a bonus, by using
KBUILD_MODNAME, the patch reduces more lines than it adds.
The fix is based on the suggestion by Russell King.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If skb->len is too short then we should return an error. Otherwise we
read beyond the end of skb->data for several bytes.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull drm fix from Dave Airlie:
"Just a quick fix that a few people have reported, be nice to have in
asap"
The drm tree seems to be very confused about 64-bit divides. Here it
uses a slow 64-by-64 bit divide to divide by a small constant. Oh well.
Doesn't look performance-critical, just stupid.
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: fix 64 bit divide in SI spm code
Allocate a descriptor for each period of a cyclic transfer, not just the first.
Also since the callback needs to be called for each finished period make sure to
initialize the callback and callback_param fields of each descriptor in a cyclic
transfer.
Cc: stable@vger.kernel.org
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Pull x86 fixes from Ingo Molnar:
"Two AMD microcode loader fixes and an OLPC firmware support fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode, AMD: Fix early microcode loading
x86, microcode, AMD: Make cpu_has_amd_erratum() use the correct struct cpuinfo_x86
x86: Don't clear olpc_ofw_header when sentinel is detected
Since the introduction of atomic_open, gfs2_getxattr can be
called with the glock already held, so we need to allow for
this.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Reported-by: David Teigland <teigland@redhat.com>
Tested-by: David Teigland <teigland@redhat.com>
We want ppc64 to be able to select between optimised assembly
checksum routines in big endian and the generic lib/checksum.c
routines in little endian.
The lpfc driver is forcing CONFIG_GENERIC_CSUM on which means
we are unable to make the decision to enable it in the arch
Kconfig. If the option exists it is always forced on.
This got introduced in 3.10 via commit 6a7252fdb0c3 ([SCSI] lpfc:
fix up Kconfig dependencies). I spoke to Randy about it and
the original issue was with CRC_T10DIF not being defined.
As such, remove the select of CONFIG_GENERIC_CSUM.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull drm fixes from Dave Airlie:
"Since we are getting to the pointy end, one i915 black screen on some
machines, and one vmwgfx stop userspace ability to nuke the VM,
There might be one or two ati or nouveau fixes trickle in before
final, but I think this should pretty much be it"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Split GMR2_REMAP commands if they are to large
drm/i915: ivb: fix edp voltage swing reg val
we don't need nr_irqs in machine any more after we move to
linear irqdomain for sirfsoc irqchip, so drop them.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Without the dynamic minor assignment, HDMI codec may have less PCM
instances than the number of pins, which eventually leads to Oops.
Reported-by: Stratos Karafotis <stratosk@semaphore.gr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
commit 8728c544a9cbdc ("net: dev_pick_tx() fix") and commit
b6fe83e9525a ("bonding: refine IFF_XMIT_DST_RELEASE capability")
are quite incompatible : Queue selection is disabled because skb
dst was dropped before entering bonding device.
This causes major performance regression, mainly because TCP packets
for a given flow can be sent to multiple queues.
This is particularly visible when using the new FQ packet scheduler
with MQ + FQ setup on the slaves.
We can safely revert the first commit now that 416186fbf8c5b
("net: Split core bits of netdev_pick_tx into __netdev_pick_tx")
properly caps the queue_index.
Reported-by: Xi Wang <xii@google.com>
Diagnosed-by: Xi Wang <xii@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 46a1c2c7ae53 ("vfs: export lseek_execute() to modules") broke the
tmpfs SEEK_DATA/SEEK_HOLE implementation, because vfs_setpos() converts
the carefully prepared -ENXIO to -EINVAL. Other filesystems avoid it in
error cases: do the same in tmpfs.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jie Liu <jeff.liu@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Forgot to use the appropriate math64 function.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
Fix to return -ENODEV when no proper base address found 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: Vinod Koul <vinod.koul@intel.com>
Pull timer fixes from Ingo Molnar:
"Three small fixlets"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
nohz: fix compile warning in tick_nohz_init()
nohz: Do not warn about unstable tsc unless user uses nohz_full
sched_clock: Fix integer overflow
Pull AMD microcode fixes from Borislav Petkov:
" Those are basically two fixes which correct the AMD early ucode loader
from accessing cpu_data too early, i.e. before smp_store_cpu_info()
has copied the boot_cpu_data ontop and overwritten an already empty
structure (which we shouldn't access that early in the first place
anyway).
The second patch is kinda largish for that late in the game but it
shouldn't be problematic because we're simply switching from using
cpu_data to use the CPU family number directly and thus again, not use
uninitialized cpu_data structure. "
Signed-off-by: Ingo Molnar <mingo@kernel.org>
alloc_workqueue() returns a NULL on error, it doesn't return an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Pull CIFS fixes from Steve French:
"A set of small cifs fixes, including 3 relating to symlink handling"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: don't instantiate new dentries in readdir for inodes that need to be revalidated immediately
cifs: set sb->s_d_op before calling d_make_root()
cifs: fix bad error handling in crypto code
cifs: file: initialize oparms.reconnect before using it
Do not attempt to do cifs operations reading symlinks with SMB2
cifs: extend the buffer length enought for sprintf() using
Pull input layer updates from Dmitry Torokhov:
"Just a couple of new IDs in Wacom and xpad drivers, i8042 is now
disabled on ARC, and data checks in Elantech driver that were overly
relaxed by the previous patch are now tightened"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - disable the driver on ARC platforms
Input: xpad - add signature for Razer Onza Classic Edition
Input: elantech - fix packet check for v3 and v4 hardware
Input: wacom - add support for 0x300 and 0x301
This fixes the piglit test texturing/max-texture-size
causing the VM to die due to a too large SVGA command.
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Biran Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
the series of patches for irqdomain core in 3.11 has broken sirf
irq which uses legacy mapping. all users fail in the new kernel
while setupping irq.
this patch moves to linear irqdomain and drop old legacy irqdomain
codes since we don't need it any more, and at the same time, it
also fixes the broken interrupts of sirfsoc in 3.11.
on the other hand, we actually only have 64 interrupt sources for
prima2 and atlas6, but there are 128 interrupt souces for marco
which uses GIC. in the legacy codes, sirf gpio also uses legacy
irqdomain, so to make gpio interrupt mapping not depend on the
prima2/atlas6/marco an use unified marco,we enlarge prima2/atlas6
interrupt number to 128. here we don't need this workaround any
more as sirf gpio also moved to linear mode before. so we move
SIRFSOC_NUM_IRQS back to 64 too.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Yet another entry, just use the existing fixup for this machine, too.
Reported-by: "Nathanael D. Noblet" <nathanael@gnat.ca>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit 1f324e38870cc09659cf23bc626f1b8869e201f2.
It seems to cause regressions, and in particular the output path
really depends upon there being a socket attached to skb->sk for
checks such as sk_mc_loop(skb->sk) for example. See ip6_output_finish2().
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reported-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull sound fixes from Takashi Iwai:
"All small regression or small fixes, nothing surprising at this stage.
- regression fix for intel Mac Mini quirk
- compress ioctl error fix
- ASoC fixes for control change notifications, some UI fixes,
driver-specific fixes (resource leak, build errors, etc)"
* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix missing fixup for Mac Mini with STAC9221
ASoC: wm0010: Fix resource leak
ASoC: au1x: Fix build
ASoC: bf5xx-ac97: Fix compile error with SND_BF5XX_HAVE_COLD_RESET
ASoC: bfin-ac97: Fix prototype error following AC'97 refactoring
ALSA: compress: fix the return value for SNDRV_COMPRESS_VERSION
ASoC: dapm: Fix return value of snd_soc_dapm_put_{volsw,enum_virt}()
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
...
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
Pull small fix for v3.11 from John Stultz.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
OpenFirmware wasn't quite following the protocol described in boot.txt
and the kernel has detected this through use of the sentinel value
in boot_params. OFW does zero out almost all of the stuff that it should
do, but not the sentinel.
This causes the kernel to clear olpc_ofw_header, which breaks x86 OLPC
support.
OpenFirmware has now been fixed. However, it would be nice if we could
maintain Linux compatibility with old firmware versions. To do that, we just
have to avoid zeroing out olpc_ofw_header.
OFW does not write to any other parts of the header that are being zapped
by the sentinel-detection code, and all users of olpc_ofw_header are
somewhat protected through checking for the OLPC_OFW_SIG magic value
before using it. So this should not cause any problems for anyone.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Link: http://lkml.kernel.org/r/20130809221420.618E6FAB03@dev.laptop.org
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org> # v3.9+
load_microcode_amd() (and the helper it is using) should not have an
cpu parameter. The microcode loading does not depend on the CPU wrt the
patches loaded since they will end up in a global list for all CPUs
anyway.
The change from cpu to x86family in load_microcode_amd()
now allows to drop the code messing with cpu_data(cpu) from
collect_cpu_info_amd_early(), which is wrong anyway because at that
point the per-cpu cpu_info is not yet setup (These values would later be
overwritten by smp_store_boot_cpu_info() / smp_store_cpu_info()).
Fold the rest of collect_cpu_info_amd_early() into load_ucode_amd_ap(),
because its only used at one place and without the cpuinfo_x86 accesses
it was not much left.
Signed-off-by: Torsten Kaiser <just.for.lkml@googlemail.com>
[ Fengguang: build fix ]
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
[ Boris: adapt it to current tree. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
When run during fsync, a gfs2_log_flush could happen between the
time when gfs2_ail_flush checked the number of blocks to revoke,
and when it actually started the transaction to do those revokes.
This occassionally caused it to need more revokes than it reserved,
causing gfs2 to crash.
Instead of just reserving enough revokes to handle the blocks that
currently need them, this patch makes gfs2_ail_flush reserve the
maximum number of revokes it can, without increasing the total number
of reserved log blocks. This patch also passes the number of reserved
revokes to __gfs2_ail_flush() so that it doesn't go over its limit
and cause a crash like we're seeing. Non-fsync calls to __gfs2_ail_flush
will still cause a BUG() necessary revokes are skipped.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Pull more ext4 bugfixes from Ted Ts'o:
"A number of miscellaneous ext4 bugs fixes for v3.11, including a fix
so that if ext4 is built as a module, to allow it to be unloaded"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: flush the extent status cache during EXT4_IOC_SWAP_BOOT
ext4: fix mount/remount error messages for incompatible mount options
ext4: allow the mount options nodelalloc and data=journal
David reported that commit c2b93e06 (cifs: only set ops for inodes in
I_NEW state) caused a regression with mfsymlinks. Prior to that patch,
if a mfsymlink dentry was instantiated at readdir time, the inode would
get a new set of ops when it was revalidated. After that patch, this
did not occur.
This patch addresses this by simply skipping instantiating dentries in
the readdir codepath when we know that they will need to be immediately
revalidated. The next attempt to use that dentry will cause a new lookup
to occur (which is basically what we want to happen anyway).
Cc: <stable@vger.kernel.org>
Cc: "Stefan (metze) Metzmacher" <metze@samba.org>
Cc: Sachin Prabhu <sprabhu@redhat.com>
Reported-and-Tested-by: David McBride <dwm37@cam.ac.uk>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Pull cgroup fix from Tejun Heo:
"During the percpu reference counting update which was merged during
v3.11-rc1, the cgroup destruction path was updated so that a cgroup in
the process of dying may linger on the children list, which was
necessary as the cgroup should still be included in child/descendant
iteration while percpu ref is being killed.
Unfortunately, I forgot to update cgroup destruction path accordingly
and cgroup destruction may fail spuriously with -EBUSY due to
lingering dying children even when there's no live child left - e.g.
"rmdir parent/child parent" will usually fail.
This can be easily fixed by iterating through the children list to
verify that there's no live child left. While this is very late in
the release cycle, this bug is very visible to userland and I believe
the fix is relatively safe.
Thanks Hugh for spotting and providing fix for the issue"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix rmdir EBUSY regression in 3.11
It causes crashes when enabled, and we don't have such a peripheral
anyway on ARC platforms.
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Just a one-line patch to fix a black screen issue on rare ivb machines,
cc: stable. Normally I'd just shovel this into the -next pull request this
late in the -rc cycle, but Linus was making noises about not getting real
fixes which are cc: stable. So here we go ;-)
* tag 'drm-intel-fixes-2013-08-30' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: ivb: fix edp voltage swing reg val
This fixes a regression exposed during the merge window by commit
9f310de "ARM: tegra: fix VBUS regulator GPIO polarity in DT"; namely that
USB VBUS doesn't get turned on, so USB devices are not detected. This
affects the internal USB port on TrimSlice (i.e. the USB->SATA bridge, to
which the SSD is connected) and the external port(s) on Seaboard/
Springbank and Whistler.
The Tegra DT as written in v3.11 allows two paths to enable USB VBUS:
1) Via the legacy DT binding for the USB controller; it can directly
acquire a VBUS GPIO and activate it.
2) Via a regulator for VBUS, which is referenced by the new DT binding
for the USB controller.
Those two methods both use the same GPIO, and hence whichever of the
USB controller and regulator gets probed first ends up owning the GPIO.
In practice, the USB driver only supports path (1) above, since the
patches to support the new USB binding are not present until v3.12:-(
In practice, the regulator ends up being probed first and owning the
GPIO. Since nothing enables the regulator (the USB driver code is not
yet present), the regulator ends up being turned off. This originally
caused no problem, because the polarity in the regulator definition was
incorrect, so attempting to turn off the regulator actually turned it
on, and everything worked:-(
However, when testing the new USB driver code in v3.12, I noticed the
incorrect polarity and fixed it in commit 9f310de "ARM: tegra: fix VBUS
regulator GPIO polarity in DT". In the context of v3.11, this patch then
caused the USB VBUS to actually turn off, which broke USB ports with VBUS
control. I got this patch included in v3.11-rc1 since it fixed a bug in
device tree (incorrect polarity specification), and hence was suitable to
be included early in the rc series. I evidently did not test the patch at
all, or correctly, in the context of v3.11, and hence did not notice the
issue that I have explained above:-(
Fix this by making the USB VBUS regulators always enabled. This way, if
the regulator owns the GPIO, it will always be turned on, even if there
is no USB driver code to request the regulator be turned on. Even
ignoring this bug, this is a reasonable way to configure the HW anyway.
If this patch is applied to v3.11, it will cause a couple pretty trivial
conflicts in tegra20-{trimslice,seaboard}.dts when creating v3.12, since
the context right above the added lines changed in patches destined for
v3.12.
Reported-by: Kyle McMartin <kmcmarti@redhat.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Gateway LT27 needs a fixup for the inverted digital mic.
Reported-by: "Nathanael D. Noblet" <nathanael@gnat.ca>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull SCSI fix from James Bottomley:
"This is a bug fix for the pm80xx driver. It turns out that when the
new hardware support was added in 3.10 the IO command size was kept at
the old hard coded value. This means that the driver attaches to some
new cards and then simply hangs the system"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] pm80xx: fix Adaptec 71605H hang
The IO command size is 128 bytes for these new controllers as opposed to 64
for the old 8001 controller.
The Adaptec out-of-tree driver did this correctly. After comparing the two
this turned out to be the crucial difference.
So don't hardcode the IO command size, instead use pm8001_ha->iomb_size as
that is the correct value for both old and new controllers.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Cc: stable@vger.kernel.org # for v3.10 and up
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Dave Hansen reported that systems between 500G and 600G RAM
crash early if DEBUG_PAGEALLOC is selected.
> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k
> [ 0.000000] BRK [0x02086000, 0x02086fff] PGTABLE
> [ 0.000000] BRK [0x02087000, 0x02087fff] PGTABLE
> [ 0.000000] BRK [0x02088000, 0x02088fff] PGTABLE
> [ 0.000000] init_memory_mapping: [mem 0xe80ee00000-0xe80effffff]
> [ 0.000000] [mem 0xe80ee00000-0xe80effffff] page 4k
> [ 0.000000] BRK [0x02089000, 0x02089fff] PGTABLE
> [ 0.000000] BRK [0x0208a000, 0x0208afff] PGTABLE
> [ 0.000000] Kernel panic - not syncing: alloc_low_page: ran out of memory
It turns out that we missed increasing needed pages in BRK to
mapping initial 2M and [0,1M) when we switched to use the #PF
handler to set memory mappings:
> commit 8170e6bed465b4b0c7687f93e9948aca4358a33b
> Author: H. Peter Anvin <hpa@zytor.com>
> Date: Thu Jan 24 12:19:52 2013 -0800
>
> x86, 64bit: Use a #PF handler to materialize early mappings on demand
Before that, we had the maping from [0,512M) in head_64.S, and we
can spare two pages [0-1M). After that change, we can not reuse
pages anymore.
When we have more than 512M ram, we need an extra page for pgd page
with [512G, 1024g).
Increase pages in BRK for page table to solve the boot crash.
Reported-by: Dave Hansen <dave.hansen@intel.com>
Bisected-by: Dave Hansen <dave.hansen@intel.com>
Tested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: <stable@vger.kernel.org> # v3.9 and later
Link: http://lkml.kernel.org/r/1376351004-4015-1-git-send-email-yinghai@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
By popular demand, this patch brings back a couple of sysfs attributes
removed by commit 663e0890e31cb85f0cca5ac1faaee0d2d52880b5
"[SCSI] zfcp: remove access control tables interface".
The content has been irrelevant for years, but the files must be
there forever for whatever user space tools that may rely on them.
Since these files always return a constant value, a new stripped
down show-macro was required. Otherwise build warnings would have
been introduced.
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull networking fixes from David Miller:
1) There was a simplification in the ipv6 ndisc packet sending
attempted here, which avoided using memory accounting on the
per-netns ndisc socket for sending NDISC packets. It did fix some
important issues, but it causes regressions so it gets reverted here
too. Specifically, the problem with this change is that the IPV6
output path really depends upon there being a valid skb->sk
attached.
The reason we want to do this change in some form when we figure out
how to do it right, is that if a device goes down the ndisc_sk
socket send queue will fill up and block NDISC packets that we want
to send to other devices too. That's really bad behavior.
Hopefully Thomas can come up with a better version of this change.
2) Fix a severe TCP performance regression by reverting a change made
to dev_pick_tx() quite some time ago. From Eric Dumazet.
3) TIPC returns wrongly signed error codes, fix from Erik Hugne.
4) Fix OOPS when doing IPSEC over ipv4 tunnels due to orphaning the
skb->sk too early. Fix from Li Hongjun.
5) RAW ipv4 sockets can use the wrong routing key during lookup, from
Chris Clark.
6) Similar to #1 revert an older change that tried to use plain
alloc_skb() for SYN/ACK TCP packets, this broke the netfilter owner
mark which needs to see the skb->sk for such frames. From Phil
Oester.
7) BNX2x driver bug fixes from Ariel Elior and Yuval Mintz,
specifically in the handling of virtual functions.
8) IPSEC path error propagations to sockets is not done properly when
we have v4 in v6, and v6 in v4 type rules. Fix from Hannes Frederic
Sowa.
9) Fix missing channel context release in mac80211, from Johannes Berg.
10) Fix network namespace handing wrt. SCM_RIGHTS, from Andy
Lutomirski.
11) Fix usage of bogus NAPI weight in jme, netxen, and ps3_gelic
drivers. From Michal Schmidt.
12) Hopefully a complete and correct fix for the genetlink dump locking
and module reference counting. From Pravin B Shelar.
13) sk_busy_loop() must do a cpu_relax(), from Eliezer Tamir.
14) Fix handling of timestamp offset when restoring a snapshotted TCP
socket. From Andrew Vagin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
net: fec: fix time stamping logic after napi conversion
net: bridge: convert MLDv2 Query MRC into msecs_to_jiffies for max_delay
mISDN: return -EINVAL on error in dsp_control_req()
net: revert 8728c544a9c ("net: dev_pick_tx() fix")
Revert "ipv6: Don't depend on per socket memory for neighbour discovery messages"
ipv4 tunnels: fix an oops when using ipip/sit with IPsec
tipc: set sk_err correctly when connection fails
tcp: tcp_make_synack() should use sock_wmalloc
bridge: separate querier and query timer into IGMP/IPv4 and MLD/IPv6 ones
ipv6: Don't depend on per socket memory for neighbour discovery messages
ipv4: sendto/hdrincl: don't use destination address found in header
tcp: don't apply tsoffset if rcv_tsecr is zero
tcp: initialize rcv_tstamp for restored sockets
net: xilinx: fix memleak
net: usb: Add HP hs2434 device to ZLP exception table
net: add cpu_relax to busy poll loop
net: stmmac: fixed the pbl setting with DT
genl: Hold reference on correct module while netlink-dump.
genl: Fix genl dumpit() locking.
xfrm: Fix potential null pointer dereference in xdst_queue_output
...
Fix:
arch/arm/common/built-in.o: undefined reference to `edma_filter_fn'
seen with "make ARCH=arm allmodconfig"
Commit 6cba4355 (ARM: edma: Add DT and runtime PM support to the private EDMA
API) adds a dependency on edma_filter_fn() into arch/arm/common/edma.c. Since
this file is always built into the kernel, edma_filter_fn() must be built into
the kernel as well.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
In the previous commit, Richard Genoud fixed proc_root_readdir(), which
had lost the check for whether all of the non-process /proc entries had
been returned or not.
But that in turn exposed _another_ bug, namely that the original readdir
conversion patch had yet another problem: it had lost the return value
of proc_readdir_de(), so now checking whether it had completed
successfully or not didn't actually work right anyway.
This reinstates the non-zero return for the "end of base entries" that
had also gotten lost in commit f0c3b5093add ("[readdir] convert
procfs"). So now you get all the base entries *and* you get all the
process entries, regardless of getdents buffer size.
(Side note: the Linux "getdents" manual page actually has a nice example
application for testing getdents, which can be easily modified to use
different buffers. Who knew? Man-pages can be useful)
Reported-by: Emmanuel Benisty <benisty.e@gmail.com>
Reported-by: Marc Dionne <marc.c.dionne@gmail.com>
Cc: Richard Genoud <richard.genoud@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
BUG: sleeping function called from invalid context at kernel/workqueue.c:2752
in_atomic(): 1, irqs_disabled(): 1, pid: 360, name: zfcperp0.0.1700
CPU: 1 Not tainted 3.9.3+ #69
Process zfcperp0.0.1700 (pid: 360, task: 0000000075b7e080, ksp: 000000007476bc30)
<snip>
Call Trace:
([<00000000001165de>] show_trace+0x106/0x154)
[<00000000001166a0>] show_stack+0x74/0xf4
[<00000000006ff646>] dump_stack+0xc6/0xd4
[<000000000017f3a0>] __might_sleep+0x128/0x148
[<000000000015ece8>] flush_work+0x54/0x1f8
[<00000000001630de>] __cancel_work_timer+0xc6/0x128
[<00000000005067ac>] scsi_device_dev_release_usercontext+0x164/0x23c
[<0000000000161816>] execute_in_process_context+0x96/0xa8
[<00000000004d33d8>] device_release+0x60/0xc0
[<000000000048af48>] kobject_release+0xa8/0x1c4
[<00000000004f4bf2>] __scsi_iterate_devices+0xfa/0x130
[<000003ff801b307a>] zfcp_erp_strategy+0x4da/0x1014 [zfcp]
[<000003ff801b3caa>] zfcp_erp_thread+0xf6/0x2b0 [zfcp]
[<000000000016b75a>] kthread+0xf2/0xfc
[<000000000070c9de>] kernel_thread_starter+0x6/0xc
[<000000000070c9d8>] kernel_thread_starter+0x0/0xc
Apparently, the ref_count for some scsi_device drops down to zero,
triggering device removal through execute_in_process_context(), while
the lldd error recovery thread iterates through a scsi device list.
Unfortunately, execute_in_process_context() decides to immediately
execute that device removal function, instead of scheduling asynchronous
execution, since it detects process context and thinks it is safe to do
so. But almost all calls to shost_for_each_device() in our lldd are
inside spin_lock_irq, even in thread context. Obviously, schedule()
inside spin_lock_irq sections is a bad idea.
Change the lldd to use the proper iterator function,
__shost_for_each_device(), in combination with required locking.
Occurences that need to be changed include all calls in zfcp_erp.c,
since those might be executed in zfcp error recovery thread context
with a lock held.
Other occurences of shost_for_each_device() in zfcp_fsf.c do not
need to be changed (no process context, no surrounding locking).
The problem was introduced in Linux 2.6.37 by commit
b62a8d9b45b971a67a0f8413338c230e3117dff5
"[SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit".
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.37+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Filtering capabilities on my work email are pretty much non-existent and this
has turned out to be something of a firehose...
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit dc975382 "net: fec: add napi support to improve proformance"
converted the fec driver to the napi model. However, that commit
forgot to remove the call to skb_defer_rx_timestamp which is only
needed in non-napi drivers.
(The function napi_gro_receive eventually calls netif_receive_skb,
which in turn calls skb_defer_rx_timestamp.)
This patch should also be applied to the 3.9 and 3.10 kernels.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f0c3b5093add ("[readdir] convert procfs") introduced a bug on the
listing of the proc file-system. The return value of proc_readdir()
isn't tested anymore in the proc_root_readdir function.
This lead to an "interesting" behaviour when we are using the getdents()
system call with a buffer too small: instead of failing, it returns the
first entries of /proc (enough to fill the given buffer), plus the PID
directories.
This is not triggered on glibc (as getdents is called with a 32KB
buffer), but on uclibc, the buffer size is only 1KB, thus some proc
entries are missing.
See https://lkml.org/lkml/2013/8/12/288 for more background.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds wait_event_interruptible_lock_irq_timeout(), which is a
straight-forward descendant of wait_event_interruptible_timeout() and
wait_event_interruptible_lock_irq().
The zfcp driver used to call wait_event_interruptible_timeout()
in combination with some intricate and error-prone locking. Using
wait_event_interruptible_lock_irq_timeout() as a replacement
nicely cleans up that locking.
This rework removes a situation that resulted in a locking imbalance
in zfcp_qdio_sbal_get():
BUG: workqueue leaked lock or atomic: events/1/0xffffff00/10
last function: zfcp_fc_wka_port_offline+0x0/0xa0 [zfcp]
It was introduced by commit c2af7545aaff3495d9bf9a7608c52f0af86fb194
"[SCSI] zfcp: Do not wait for SBALs on stopped queue", which had a new
code path related to ZFCP_STATUS_ADAPTER_QDIOUP that took an early exit
without a required lock being held. The problem occured when a
special, non-SCSI I/O request was being submitted in process context,
when the adapter's queues had been torn down. In this case the bug
surfaced when the Fibre Channel port connection for a well-known address
was closed during a concurrent adapter shut-down procedure, which is a
rare constellation.
This patch also fixes these warnings from the sparse tool (make C=1):
drivers/s390/scsi/zfcp_qdio.c:224:12: warning: context imbalance in
'zfcp_qdio_sbal_check' - wrong count at exit
drivers/s390/scsi/zfcp_qdio.c:244:5: warning: context imbalance in
'zfcp_qdio_sbal_get' - unexpected unlock
Last but not least, we get rid of that crappy lock-unlock-lock
sequence at the beginning of the critical section.
It is okay to call zfcp_erp_adapter_reopen() with req_q_lock held.
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.35+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull sound fixes from Takashi Iwai:
"This contains two Oops fixes (opti9xx and HD-audio) and a simple fixup
for an Acer laptop. All marked as stable patches"
* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: opti9xx: Fix conflicting driver object name
ALSA: hda - Fix NULL dereference with CONFIG_SND_DYNAMIC_MINORS=n
ALSA: hda - Add inverted digital mic fixup for Acer Aspire One
While looking into MLDv1/v2 code, I noticed that bridging code does
not convert it's max delay into jiffies for MLDv2 messages as we do
in core IPv6' multicast code.
RFC3810, 5.1.3. Maximum Response Code says:
The Maximum Response Code field specifies the maximum time allowed
before sending a responding Report. The actual time allowed, called
the Maximum Response Delay, is represented in units of milliseconds,
and is derived from the Maximum Response Code as follows: [...]
As we update timers that work with jiffies, we need to convert it.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Linus Lüssing <linus.luessing@web.de>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.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 gfs2 fixes from Steven Whitehouse:
"Out of these five patches, the one for ensuring that the number of
revokes is not exceeded, and the one for checking the glock is not
already held in gfs2_getxattr are the two most important. The latter
can be triggered by selinux.
The other three patches are very small and fix mostly fairly trivial
issues"
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Check for glock already held in gfs2_getxattr
GFS2: alloc_workqueue() doesn't return an ERR_PTR
GFS2: don't overrun reserved revokes
GFS2: WQ_NON_REENTRANT is meaningless and going away
GFS2: Fix typo in gfs2_create_inode()
There is a nasty bug in the SCSI SG_IO ioctl that in some circumstances
leads to one process writing data into the address space of some other
random unrelated process if the ioctl is interrupted by a signal.
What happens is the following:
- A process issues an SG_IO ioctl with direction DXFER_FROM_DEV (ie the
underlying SCSI command will transfer data from the SCSI device to
the buffer provided in the ioctl)
- Before the command finishes, a signal is sent to the process waiting
in the ioctl. This will end up waking up the sg_ioctl() code:
result = wait_event_interruptible(sfp->read_wait,
(srp_done(sfp, srp) || sdp->detached));
but neither srp_done() nor sdp->detached is true, so we end up just
setting srp->orphan and returning to userspace:
srp->orphan = 1;
write_unlock_irq(&sfp->rq_list_lock);
return result; /* -ERESTARTSYS because signal hit process */
At this point the original process is done with the ioctl and
blithely goes ahead handling the signal, reissuing the ioctl, etc.
- Eventually, the SCSI command issued by the first ioctl finishes and
ends up in sg_rq_end_io(). At the end of that function, we run through:
write_lock_irqsave(&sfp->rq_list_lock, iflags);
if (unlikely(srp->orphan)) {
if (sfp->keep_orphan)
srp->sg_io_owned = 0;
else
done = 0;
}
srp->done = done;
write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
if (likely(done)) {
/* Now wake up any sg_read() that is waiting for this
* packet.
*/
wake_up_interruptible(&sfp->read_wait);
kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
kref_put(&sfp->f_ref, sg_remove_sfp);
} else {
INIT_WORK(&srp->ew.work, sg_rq_end_io_usercontext);
schedule_work(&srp->ew.work);
}
Since srp->orphan *is* set, we set done to 0 (assuming the
userspace app has not set keep_orphan via an SG_SET_KEEP_ORPHAN
ioctl), and therefore we end up scheduling sg_rq_end_io_usercontext()
to run in a workqueue.
- In workqueue context we go through sg_rq_end_io_usercontext() ->
sg_finish_rem_req() -> blk_rq_unmap_user() -> ... ->
bio_uncopy_user() -> __bio_copy_iov() -> copy_to_user().
The key point here is that we are doing copy_to_user() on a
workqueue -- that is, we're on a kernel thread with current->mm
equal to whatever random previous user process was scheduled before
this kernel thread. So we end up copying whatever data the SCSI
command returned to the virtual address of the buffer passed into
the original ioctl, but it's quite likely we do this copying into a
different address space!
As suggested by James Bottomley <James.Bottomley@hansenpartnership.com>,
add a check for current->mm (which is NULL if we're on a kernel thread
without a real userspace address space) in bio_uncopy_user(), and skip
the copy if we're on a kernel thread.
There's no reason that I can think of for any caller of bio_uncopy_user()
to want to do copying on a kernel thread with a random active userspace
address space.
Huge thanks to Costa Sapuntzakis <costa@purestorage.com> for the
original pointer to this bug in the sg code.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Tested-by: David Milburn <dmilburn@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull ARM SoC fixes from Olof Johansson:
"Two straggling fixes that I had missed as they were posted a couple of
weeks ago, causing problems with interrupts (breaking them completely)
on the CSR SiRF platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm: prima2: drop nr_irqs in mach as we moved to linear irqdomain
irqchip: sirf: move from legacy mode to linear irqdomain
The recent commit to delay the release of kobject triggered NULL
dereferences of opti9xx drivers. The cause is that all
snd-opti92x-ad1848, snd-opti92x-cs4231 and snd-opti93x drivers
register the PnP card driver with the very same name, and also
snd-opti92x-ad1848 and -cs4231 drivers register the ISA driver with
the same name, too. When these drivers are built in, quick
"register-release-and-re-register" actions occur, and this results in
Oops because of the same name is assigned to the kobject.
The fix is simply to assign individual names. As a bonus, by using
KBUILD_MODNAME, the patch reduces more lines than it adds.
The fix is based on the suggestion by Russell King.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull drm fix from Dave Airlie:
"Just a quick fix that a few people have reported, be nice to have in
asap"
The drm tree seems to be very confused about 64-bit divides. Here it
uses a slow 64-by-64 bit divide to divide by a small constant. Oh well.
Doesn't look performance-critical, just stupid.
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: fix 64 bit divide in SI spm code
Allocate a descriptor for each period of a cyclic transfer, not just the first.
Also since the callback needs to be called for each finished period make sure to
initialize the callback and callback_param fields of each descriptor in a cyclic
transfer.
Cc: stable@vger.kernel.org
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Pull x86 fixes from Ingo Molnar:
"Two AMD microcode loader fixes and an OLPC firmware support fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode, AMD: Fix early microcode loading
x86, microcode, AMD: Make cpu_has_amd_erratum() use the correct struct cpuinfo_x86
x86: Don't clear olpc_ofw_header when sentinel is detected
We want ppc64 to be able to select between optimised assembly
checksum routines in big endian and the generic lib/checksum.c
routines in little endian.
The lpfc driver is forcing CONFIG_GENERIC_CSUM on which means
we are unable to make the decision to enable it in the arch
Kconfig. If the option exists it is always forced on.
This got introduced in 3.10 via commit 6a7252fdb0c3 ([SCSI] lpfc:
fix up Kconfig dependencies). I spoke to Randy about it and
the original issue was with CRC_T10DIF not being defined.
As such, remove the select of CONFIG_GENERIC_CSUM.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull drm fixes from Dave Airlie:
"Since we are getting to the pointy end, one i915 black screen on some
machines, and one vmwgfx stop userspace ability to nuke the VM,
There might be one or two ati or nouveau fixes trickle in before
final, but I think this should pretty much be it"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Split GMR2_REMAP commands if they are to large
drm/i915: ivb: fix edp voltage swing reg val
commit 8728c544a9cbdc ("net: dev_pick_tx() fix") and commit
b6fe83e9525a ("bonding: refine IFF_XMIT_DST_RELEASE capability")
are quite incompatible : Queue selection is disabled because skb
dst was dropped before entering bonding device.
This causes major performance regression, mainly because TCP packets
for a given flow can be sent to multiple queues.
This is particularly visible when using the new FQ packet scheduler
with MQ + FQ setup on the slaves.
We can safely revert the first commit now that 416186fbf8c5b
("net: Split core bits of netdev_pick_tx into __netdev_pick_tx")
properly caps the queue_index.
Reported-by: Xi Wang <xii@google.com>
Diagnosed-by: Xi Wang <xii@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 46a1c2c7ae53 ("vfs: export lseek_execute() to modules") broke the
tmpfs SEEK_DATA/SEEK_HOLE implementation, because vfs_setpos() converts
the carefully prepared -ENXIO to -EINVAL. Other filesystems avoid it in
error cases: do the same in tmpfs.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jie Liu <jeff.liu@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull AMD microcode fixes from Borislav Petkov:
" Those are basically two fixes which correct the AMD early ucode loader
from accessing cpu_data too early, i.e. before smp_store_cpu_info()
has copied the boot_cpu_data ontop and overwritten an already empty
structure (which we shouldn't access that early in the first place
anyway).
The second patch is kinda largish for that late in the game but it
shouldn't be problematic because we're simply switching from using
cpu_data to use the CPU family number directly and thus again, not use
uninitialized cpu_data structure. "
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull CIFS fixes from Steve French:
"A set of small cifs fixes, including 3 relating to symlink handling"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: don't instantiate new dentries in readdir for inodes that need to be revalidated immediately
cifs: set sb->s_d_op before calling d_make_root()
cifs: fix bad error handling in crypto code
cifs: file: initialize oparms.reconnect before using it
Do not attempt to do cifs operations reading symlinks with SMB2
cifs: extend the buffer length enought for sprintf() using
Pull input layer updates from Dmitry Torokhov:
"Just a couple of new IDs in Wacom and xpad drivers, i8042 is now
disabled on ARC, and data checks in Elantech driver that were overly
relaxed by the previous patch are now tightened"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - disable the driver on ARC platforms
Input: xpad - add signature for Razer Onza Classic Edition
Input: elantech - fix packet check for v3 and v4 hardware
Input: wacom - add support for 0x300 and 0x301
This fixes the piglit test texturing/max-texture-size
causing the VM to die due to a too large SVGA command.
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Biran Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
the series of patches for irqdomain core in 3.11 has broken sirf
irq which uses legacy mapping. all users fail in the new kernel
while setupping irq.
this patch moves to linear irqdomain and drop old legacy irqdomain
codes since we don't need it any more, and at the same time, it
also fixes the broken interrupts of sirfsoc in 3.11.
on the other hand, we actually only have 64 interrupt sources for
prima2 and atlas6, but there are 128 interrupt souces for marco
which uses GIC. in the legacy codes, sirf gpio also uses legacy
irqdomain, so to make gpio interrupt mapping not depend on the
prima2/atlas6/marco an use unified marco,we enlarge prima2/atlas6
interrupt number to 128. here we don't need this workaround any
more as sirf gpio also moved to linear mode before. so we move
SIRFSOC_NUM_IRQS back to 64 too.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This reverts commit 1f324e38870cc09659cf23bc626f1b8869e201f2.
It seems to cause regressions, and in particular the output path
really depends upon there being a socket attached to skb->sk for
checks such as sk_mc_loop(skb->sk) for example. See ip6_output_finish2().
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reported-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull sound fixes from Takashi Iwai:
"All small regression or small fixes, nothing surprising at this stage.
- regression fix for intel Mac Mini quirk
- compress ioctl error fix
- ASoC fixes for control change notifications, some UI fixes,
driver-specific fixes (resource leak, build errors, etc)"
* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix missing fixup for Mac Mini with STAC9221
ASoC: wm0010: Fix resource leak
ASoC: au1x: Fix build
ASoC: bf5xx-ac97: Fix compile error with SND_BF5XX_HAVE_COLD_RESET
ASoC: bfin-ac97: Fix prototype error following AC'97 refactoring
ALSA: compress: fix the return value for SNDRV_COMPRESS_VERSION
ASoC: dapm: Fix return value of snd_soc_dapm_put_{volsw,enum_virt}()
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
...
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
OpenFirmware wasn't quite following the protocol described in boot.txt
and the kernel has detected this through use of the sentinel value
in boot_params. OFW does zero out almost all of the stuff that it should
do, but not the sentinel.
This causes the kernel to clear olpc_ofw_header, which breaks x86 OLPC
support.
OpenFirmware has now been fixed. However, it would be nice if we could
maintain Linux compatibility with old firmware versions. To do that, we just
have to avoid zeroing out olpc_ofw_header.
OFW does not write to any other parts of the header that are being zapped
by the sentinel-detection code, and all users of olpc_ofw_header are
somewhat protected through checking for the OLPC_OFW_SIG magic value
before using it. So this should not cause any problems for anyone.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Link: http://lkml.kernel.org/r/20130809221420.618E6FAB03@dev.laptop.org
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org> # v3.9+
load_microcode_amd() (and the helper it is using) should not have an
cpu parameter. The microcode loading does not depend on the CPU wrt the
patches loaded since they will end up in a global list for all CPUs
anyway.
The change from cpu to x86family in load_microcode_amd()
now allows to drop the code messing with cpu_data(cpu) from
collect_cpu_info_amd_early(), which is wrong anyway because at that
point the per-cpu cpu_info is not yet setup (These values would later be
overwritten by smp_store_boot_cpu_info() / smp_store_cpu_info()).
Fold the rest of collect_cpu_info_amd_early() into load_ucode_amd_ap(),
because its only used at one place and without the cpuinfo_x86 accesses
it was not much left.
Signed-off-by: Torsten Kaiser <just.for.lkml@googlemail.com>
[ Fengguang: build fix ]
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
[ Boris: adapt it to current tree. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
When run during fsync, a gfs2_log_flush could happen between the
time when gfs2_ail_flush checked the number of blocks to revoke,
and when it actually started the transaction to do those revokes.
This occassionally caused it to need more revokes than it reserved,
causing gfs2 to crash.
Instead of just reserving enough revokes to handle the blocks that
currently need them, this patch makes gfs2_ail_flush reserve the
maximum number of revokes it can, without increasing the total number
of reserved log blocks. This patch also passes the number of reserved
revokes to __gfs2_ail_flush() so that it doesn't go over its limit
and cause a crash like we're seeing. Non-fsync calls to __gfs2_ail_flush
will still cause a BUG() necessary revokes are skipped.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Pull more ext4 bugfixes from Ted Ts'o:
"A number of miscellaneous ext4 bugs fixes for v3.11, including a fix
so that if ext4 is built as a module, to allow it to be unloaded"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: flush the extent status cache during EXT4_IOC_SWAP_BOOT
ext4: fix mount/remount error messages for incompatible mount options
ext4: allow the mount options nodelalloc and data=journal
David reported that commit c2b93e06 (cifs: only set ops for inodes in
I_NEW state) caused a regression with mfsymlinks. Prior to that patch,
if a mfsymlink dentry was instantiated at readdir time, the inode would
get a new set of ops when it was revalidated. After that patch, this
did not occur.
This patch addresses this by simply skipping instantiating dentries in
the readdir codepath when we know that they will need to be immediately
revalidated. The next attempt to use that dentry will cause a new lookup
to occur (which is basically what we want to happen anyway).
Cc: <stable@vger.kernel.org>
Cc: "Stefan (metze) Metzmacher" <metze@samba.org>
Cc: Sachin Prabhu <sprabhu@redhat.com>
Reported-and-Tested-by: David McBride <dwm37@cam.ac.uk>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Pull cgroup fix from Tejun Heo:
"During the percpu reference counting update which was merged during
v3.11-rc1, the cgroup destruction path was updated so that a cgroup in
the process of dying may linger on the children list, which was
necessary as the cgroup should still be included in child/descendant
iteration while percpu ref is being killed.
Unfortunately, I forgot to update cgroup destruction path accordingly
and cgroup destruction may fail spuriously with -EBUSY due to
lingering dying children even when there's no live child left - e.g.
"rmdir parent/child parent" will usually fail.
This can be easily fixed by iterating through the children list to
verify that there's no live child left. While this is very late in
the release cycle, this bug is very visible to userland and I believe
the fix is relatively safe.
Thanks Hugh for spotting and providing fix for the issue"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix rmdir EBUSY regression in 3.11
Just a one-line patch to fix a black screen issue on rare ivb machines,
cc: stable. Normally I'd just shovel this into the -next pull request this
late in the -rc cycle, but Linus was making noises about not getting real
fixes which are cc: stable. So here we go ;-)
* tag 'drm-intel-fixes-2013-08-30' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: ivb: fix edp voltage swing reg val
This fixes a regression exposed during the merge window by commit
9f310de "ARM: tegra: fix VBUS regulator GPIO polarity in DT"; namely that
USB VBUS doesn't get turned on, so USB devices are not detected. This
affects the internal USB port on TrimSlice (i.e. the USB->SATA bridge, to
which the SSD is connected) and the external port(s) on Seaboard/
Springbank and Whistler.
The Tegra DT as written in v3.11 allows two paths to enable USB VBUS:
1) Via the legacy DT binding for the USB controller; it can directly
acquire a VBUS GPIO and activate it.
2) Via a regulator for VBUS, which is referenced by the new DT binding
for the USB controller.
Those two methods both use the same GPIO, and hence whichever of the
USB controller and regulator gets probed first ends up owning the GPIO.
In practice, the USB driver only supports path (1) above, since the
patches to support the new USB binding are not present until v3.12:-(
In practice, the regulator ends up being probed first and owning the
GPIO. Since nothing enables the regulator (the USB driver code is not
yet present), the regulator ends up being turned off. This originally
caused no problem, because the polarity in the regulator definition was
incorrect, so attempting to turn off the regulator actually turned it
on, and everything worked:-(
However, when testing the new USB driver code in v3.12, I noticed the
incorrect polarity and fixed it in commit 9f310de "ARM: tegra: fix VBUS
regulator GPIO polarity in DT". In the context of v3.11, this patch then
caused the USB VBUS to actually turn off, which broke USB ports with VBUS
control. I got this patch included in v3.11-rc1 since it fixed a bug in
device tree (incorrect polarity specification), and hence was suitable to
be included early in the rc series. I evidently did not test the patch at
all, or correctly, in the context of v3.11, and hence did not notice the
issue that I have explained above:-(
Fix this by making the USB VBUS regulators always enabled. This way, if
the regulator owns the GPIO, it will always be turned on, even if there
is no USB driver code to request the regulator be turned on. Even
ignoring this bug, this is a reasonable way to configure the HW anyway.
If this patch is applied to v3.11, it will cause a couple pretty trivial
conflicts in tegra20-{trimslice,seaboard}.dts when creating v3.12, since
the context right above the added lines changed in patches destined for
v3.12.
Reported-by: Kyle McMartin <kmcmarti@redhat.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>