Commit Graph

469444 Commits

Author SHA1 Message Date
Linus Torvalds
955837d8f5 arm64 fixes for -rc4
Another handful of arm64 fixes here:
 
   - A few fixes for real issues found by smatch (after Dan's talk at KS)
   - Revert the /proc/cpuinfo changes merged during the merge window.
     We've opened a can of worms here, so we need to find out where we
     stand before we change this interface.
   - Implement KSTK_ESP for compat tasks, otherwise 32-bit Android gets
     confused wondering where its [stack] has gone
   - Misc fixes (fpsimd context handling, crypto, ...)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull more arm64 fixes from Will Deacon:
 "Another handful of arm64 fixes here.  They address some issues found
  by running smatch on the arch code (ignoring the false positives) and
  also stop 32-bit Android from losing track of its stack.

  There's one additional irq migration fix in the pipeline, but it came
  in after I'd tagged and tested this set.

   - a few fixes for real issues found by smatch (after Dan's talk at KS)

   - revert the /proc/cpuinfo changes merged during the merge window.
     We've opened a can of worms here, so we need to find out where we
     stand before we change this interface.

   - implement KSTK_ESP for compat tasks, otherwise 32-bit Android gets
     confused wondering where its [stack] has gone

   - misc fixes (fpsimd context handling, crypto, ...)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: cpuinfo: print info for all CPUs"
  arm64: fix bug for reloading FPSIMD state after cpu power off
  arm64: report correct stack pointer in KSTK_ESP for compat tasks
  arm64: Add brackets around user_stack_pointer()
  arm64: perf: don't rely on layout of pt_regs when grabbing sp or pc
  arm64: ptrace: fix compat reg getter/setter return values
  arm64: ptrace: fix compat hardware watchpoint reporting
  arm64: Remove unused variable in head.S
  arm64/crypto: remove redundant update of data
2014-09-03 08:59:45 -07:00
Joerg Roedel
61bf5ff07a Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into iommu/fixes 2014-09-03 17:58:50 +02:00
Linus Torvalds
f16c15a0e0 PCI update for v3.17:
ST Microelectronics SPEAr13xx
     - Remove module option (Sachin Kamat)
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Merge tag 'pci-v3.17-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "This fixes an ARM allmodconfig build problem:

  Remove module option for ST Microelectronics SPEAr13xx"

* tag 'pci-v3.17-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: spear: Remove module option
2014-09-03 08:45:48 -07:00
Linus Torvalds
51fe4d3bae Merge branch 'leds-fixes-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED fix from Bryan Wu:
 "Hugh, Jiri and many other people found a kernel oops due to a LED
  change merged recently.  Now the right fix might just revert it and
  avoid the kernel oops"

* 'leds-fixes-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  Revert "leds: convert blink timer to workqueue"
2014-09-03 08:44:55 -07:00
Takashi Iwai
05244d1667 ASoC: Fixes for v3.17
A few more driver specific fixes on top of the currently pending fixes
 (which are already in your tree but not Linus').
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Merge tag 'asoc-v3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.17

A few more driver specific fixes on top of the currently pending fixes
(which are already in your tree but not Linus').
2014-09-03 16:57:41 +02:00
Jyri Sarha
03be88ee4a ASoC: tlv320aic31xx: Fix 24bit samples with I2S format and 12MHz mclk
I2S format requires bitclock to have an exact amount of cycles in a
frame for audio to work cleanly. With dsp formats that is not so
important.

Updates aic31xx_setup_pll() to look for a line in aic31xx_divs table
that produces the best match for the bitclock and adds lines to
aic31xx_divs for 12MHz mclk and 24bit samples.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-03 15:23:56 +01:00
Thierry Reding
9ce9ec95fb usb: phy: tegra: Avoid use of sizeof(void)
The PHY configuration is stored in an opaque "config" field, but when
allocating the structure, its proper size needs to be known. In the case
of UTMI, the proper structure is tegra_utmip_config of which a local
variable already exists, so we can use that to obtain the size from.

Fixes the following warning from the sparse checker:

	drivers/usb/phy/phy-tegra-usb.c:882:17: warning: expression using sizeof(void)

Fixes: 81d5dfe6d8 (usb: phy: tegra: Read UTMIP parameters from device tree)
Cc: stable@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:16:01 -05:00
Peter Chen
36687e3056 doc: dt: mxs-phy: add compatible string for imx6sx-usbphy
Add compatible string for imx6sx-usbphy.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:16:00 -05:00
Peter Chen
43f3634ff7 usb: phy: mxs: add imx6sx support
Add imx6sx support

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:16:00 -05:00
Robert Baldyga
6d5c1c77bb usb: gadget: f_fs: fix the redundant ep files problem
Up to now, when endpoint addresses in descriptors were non-consecutive,
there were created redundant files, which could cause problems in kernel,
when user tried to read/write to them. It was result of fact that maximum
endpoint address was taken as total number of endpoints in function.

This patch adds endpoint descriptors counting and storing their addresses
in eps_addrmap to verify their cohesion in each speed.

Endpoint address map would be also useful for further features, just like
vitual endpoint address mapping.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:59 -05:00
Yoshihiro Shimoda
2743e7f90d usb: renesas_usbhs: fix the usb_pkt_pop()
This patch fixes the usb_pkt_pop(). If a gadget driver calls
usb_ep_dequeue(), this driver will call the usb_pkt_pop().
So, the usb_pkt_pop() should cancel the transaction.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:58 -05:00
Yoshihiro Shimoda
c0ed8b23b2 usb: renesas_usbhs: fix the condition of is_done in usbhsf_dma_push_done
This patch fixes the condition of is_done in usbhsf_dma_push_done().
This function will be called after a transmission finished by DMAC.
So, the function should check if the transmission packet is short packet
or not. Also the function should call try_run to send the zero packet
by the pio handler if the "*is_done" is not set. Otherwize, the
transaction will not finish if a gadget driver sets the "zero" flag
in a transmission.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:58 -05:00
Yoshihiro Shimoda
c4d8199ba1 usb: renesas_usbhs: protect mod->irq_{bemp,brdy}sts by spin lock
This patch protects the mod->irq_bempsts and mod->irq_brdysts by
spin lock in the usbhs_status_get_each_irq() because other functions
will write them during spin lock. Otherwise, the driver will clears
the BRDYSTS and/or BEMPSTS wrongly, and then, the transaction will not
finish.
Also since the driver should use the INTSTS0 and BRDYSTS and BEMPSTS
as the same timing, the patch protects them.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:57 -05:00
Yoshihiro Shimoda
8355b2b308 usb: renesas_usbhs: fix the behavior of some usbhs_pkt_handle
Some gadget drivers will call usb_ep_queue() more than once before
the first queue doesn't finish. However, this driver didn't handle
it correctly. So, this patch fixes the behavior of some
usbhs_pkt_handle using the "running" flag. Otherwise, the oops below
happens if we use g_ncm driver and when the "iperf -u -c host -b 200M"
is running.

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 80000007 [#1] SMP ARM
Modules linked in: usb_f_ncm g_ncm libcomposite u_ether
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W      3.17.0-rc1-00008-g8b2be8a-dirty #20
task: c051c7e0 ti: c0512000 task.ti: c0512000
PC is at 0x0
LR is at usbhsf_pkt_handler+0xa8/0x114
pc : [<00000000>]    lr : [<c0278fb4>]    psr: 60000193
sp : c0513ce8  ip : c0513c58  fp : c0513d24
r10: 00000001  r9 : 00000193  r8 : eebec4a0
r7 : eebec410  r6 : eebe0c6c  r5 : 00000000  r4 : ee4a2774
r3 : 00000000  r2 : ee251e00  r1 : c0513cf4  r0 : ee4a2774

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:57 -05:00
Rasmus Villemoes
f0798d6a04 usb: gadget: fusb300_udc.h: Fix typo in include guard
Clearly this was meant to be an include guard, but a trailing
underscore was missing. It has been this way since the file was
introduced in 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver").

Fixes: 0fe6f1d1 ("usb: udc: add Faraday fusb300 driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:57 -05:00
Ricardo Ribalda Delgado
ac9d032e73 usb: gadget: net2280: Fix invalid handling of Reset irq
Without this patch, some hosts keep restarting indefinitely the target.

Fixes: ae8e530 (usb: gadget: net2280: Code Cleanup)
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:57 -05:00
Bin Liu
9267edaf8c usb: musb: cppi41: fix not transmitting zero length packet issue
CPPI TX does not transmit ZLP for TX transfers which
- transfer size is multiple of EP packet size,
- and URB_ZERO_PACKET is set in urb->transfer_flags.

The fix is transmitting the ZLP using PIO mode after the CPPI TX is
done.

Validated using the following usbtest write case in MUSB host mode.

  # testusb -t1 -c1

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-03 09:15:56 -05:00
Theodore Ts'o
a9cfcd63e8 ext4: avoid trying to kfree an ERR_PTR pointer
Thanks to Dan Carpenter for extending smatch to find bugs like this.
(This was found using a development version of smatch.)

Fixes: 36de928641
Reported-by: Dan Carpenter <dan.carpenter@oracle.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2014-09-03 09:37:30 -04:00
Will Deacon
fea322d1df irqchip: gic-v3: Declare rdist as __percpu pointer to __iomem pointer
The __percpu __iomem annotations on the rdist base are contradictory
and confuse static checkers such as sparse.

This patch fixes the anotations so that rdist is described as a __percpu
pointer to an __iomem pointer.

Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1409062410-25891-9-git-send-email-will.deacon@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-09-03 12:08:10 +00:00
Will Deacon
f3d147b87a irqchip: gic: Make gic_default_routable_irq_domain_ops static
The internal irq domain ops for the GIC are not used directly anywhere
else, so make them static. This gets rid of a sparse warning on the
file.

Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1409062410-25891-8-git-send-email-will.deacon@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-09-03 12:07:51 +00:00
Naveen Krishna Chatradhi
bc64690e35 irqchip: exynos-combiner: Fix compilation error on ARM64
The following compilation error occurs on 64-bit Exynos7 SoC:

drivers/irqchip/exynos-combiner.c: In function ‘combiner_irq_domain_map’:
drivers/irqchip/exynos-combiner.c:162:2: error: implicit declaration of function ‘set_irq_flags’ [-Werror=implicit-function-declaration]
  set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
  ^
drivers/irqchip/exynos-combiner.c:162:21: error: ‘IRQF_VALID’ undeclared (first use in this function)
  set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
                     ^
drivers/irqchip/exynos-combiner.c:162:21: note: each undeclared identifier is reported only once for each function it appears in
drivers/irqchip/exynos-combiner.c:162:34: error: ‘IRQF_PROBE’ undeclared (first use in this function)
  set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);

Fix the build error by including linux/interrupt.h.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lkml.kernel.org/r/1409722329-18309-1-git-send-email-ch.naveen@samsung.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-09-03 11:56:39 +00:00
Ingo Molnar
651bc1a474 Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
Pull an RCU fix from Paul E. McKenney:

 "This series contains a single commit fixing an initialization bug
  reported by Amit Shah and fixed by Pranith Kumar (and tested by Amit).
  This bug results in a boot-time hang in callback-offloaded configurations
  where callbacks were posted before the offloading ('rcuo') kthreads
  were created."

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-09-03 10:46:51 +02:00
Laurent Dufour
02a68d0503 powerpc/kvm/cma: Fix panic introduces by signed shift operation
fc95ca7284 introduces a memset in
kvmppc_alloc_hpt since the general CMA doesn't clear the memory it
allocates.

However, the size argument passed to memset is computed from a signed value
and its signed bit is extended by the cast the compiler is doing. This lead
to extremely large size value when dealing with order value >= 31, and
almost all the memory following the allocated space is cleaned. As a
consequence, the system is panicing and may even fail spawning the kdump
kernel.

This fix makes use of an unsigned value for the memset's size argument to
avoid sign extension. Among this fix, another shift operation which may
lead to signed extended value too is also fixed.

Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-03 10:34:07 +02:00
Tomi Valkeinen
32797b3e06 video: fix composite video connector compatible string
The quite-recently-added analog-tv-connector bindings say that the
compatible string for composite video connector is
"composite-connector". That string is also used in the omap3-n900.dts
file. However, the connector driver uses "composite-video-connector", so
this has never worked.

While changing the driver's compatible string to "composite-connector"
would be safer, as published DT bindings should not be changed, I'd
rather fix the bindings in this case for two reasons:

* composite-connector is a bit too generic name, as it doesn't even hint
  at video.
* it's clear that this has never worked, which means no one has used
  those bindings, which should make it safe to change this.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2014-09-03 08:28:58 +03:00
Dave Airlie
0977f90679 Merge branch 'vmwgfx-fixes-3.17' of git://people.freedesktop.org/~thomash/linux into drm-fixes
Two vmwgfx fixes, marked for stable as well

* 'vmwgfx-fixes-3.17' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
  drm/vmwgfx: Fix an incorrect OOM return value
2014-09-03 13:39:47 +10:00
David Howells
0aa0409401 PEFILE: Relax the check on the length of the PKCS#7 cert
Relax the check on the length of the PKCS#7 cert as it appears that the PE
file wrapper size gets rounded up to the nearest 8.

The debugging output looks like this:

	PEFILE: ==> verify_pefile_signature()
	PEFILE: ==> pefile_parse_binary()
	PEFILE: checksum @ 110
	PEFILE: header size = 200
	PEFILE: cert = 968 @547be0 [68 09 00 00 00 02 02 00 30 82 09 56 ]
	PEFILE: sig wrapper = { 968, 200, 2 }
	PEFILE: Signature data not PKCS#7

The wrapper is the first 8 bytes of the hex dump inside [].  This indicates a
length of 0x968 bytes, including the wrapper header - so 0x960 bytes of
payload.

The ASN.1 wrapper begins [ ... 30 82 09 56 ].  That indicates an object of size
0x956 - a four byte discrepency, presumably just padding for alignment
purposes.

So we just check that the ASN.1 container is no bigger than the payload and
reduce the recorded size appropriately.

Whilst we're at it, allow shorter PKCS#7 objects that manage to squeeze within
127 or 255 bytes.  It's just about conceivable if no X.509 certs are included
in the PKCS#7 message.

Reported-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Peter Jones <pjones@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2014-09-03 10:30:24 +10:00
David Howells
27419604f5 KEYS: Fix use-after-free in assoc_array_gc()
An edit script should be considered inaccessible by a function once it has
called assoc_array_apply_edit() or assoc_array_cancel_edit().

However, assoc_array_gc() is accessing the edit script just after the
gc_complete: label.

Reported-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
cc: shemming@brocade.com
cc: paulmck@linux.vnet.ibm.com
Cc: stable@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
2014-09-03 10:30:22 +10:00
David Howells
876c6e3e02 KEYS: Fix public_key asymmetric key subtype name
The length of the name of an asymmetric key subtype must be stored in struct
asymmetric_key_subtype::name_len so that it can be matched by a search for
"<subkey_name>:<partial_fingerprint>".  Fix the public_key subtype to have
name_len set.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2014-09-03 10:27:28 +10:00
Steve Dickson
738c5d190f KEYS: Increase root_maxkeys and root_maxbytes sizes
Now that NFS client uses the kernel key ring facility to store the NFSv4
id/gid mappings, the defaults for root_maxkeys and root_maxbytes need to be
substantially increased.

These values have been soak tested:

	https://bugzilla.redhat.com/show_bug.cgi?id=1033708#c73

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2014-09-03 10:27:12 +10:00
Filipe Manana
dac5705cad Btrfs: fix crash while doing a ranged fsync
While doing a ranged fsync, that is, one whose range doesn't cover the
whole possible file range (0 to LLONG_MAX), we can crash under certain
circumstances with a trace like the following:

[41074.641913] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC
(...)
[41074.642692] CPU: 0 PID: 24580 Comm: fsx Not tainted 3.16.0-fdm-btrfs-next-45+ #1
(...)
[41074.643886] RIP: 0010:[<ffffffffa01ecc99>]  [<ffffffffa01ecc99>] btrfs_ordered_update_i_size+0x279/0x2b0 [btrfs]
(...)
[41074.644919] Stack:
(...)
[41074.644919] Call Trace:
[41074.644919]  [<ffffffffa01db531>] btrfs_truncate_inode_items+0x3f1/0xa10 [btrfs]
[41074.644919]  [<ffffffffa01eb54f>] ? btrfs_get_logged_extents+0x4f/0x80 [btrfs]
[41074.644919]  [<ffffffffa02137a9>] btrfs_log_inode+0x2f9/0x970 [btrfs]
[41074.644919]  [<ffffffff81090875>] ? sched_clock_local+0x25/0xa0
[41074.644919]  [<ffffffff8164a55e>] ? mutex_unlock+0xe/0x10
[41074.644919]  [<ffffffff810af51d>] ? trace_hardirqs_on+0xd/0x10
[41074.644919]  [<ffffffffa0214b4f>] btrfs_log_inode_parent+0x1ef/0x560 [btrfs]
[41074.644919]  [<ffffffff811d0c55>] ? dget_parent+0x5/0x180
[41074.644919]  [<ffffffffa0215d11>] btrfs_log_dentry_safe+0x51/0x80 [btrfs]
[41074.644919]  [<ffffffffa01e2d1a>] btrfs_sync_file+0x1ba/0x3e0 [btrfs]
[41074.644919]  [<ffffffff811eda6b>] vfs_fsync_range+0x1b/0x30
(...)

The necessary conditions that lead to such crash are:

* an incremental fsync (when the inode doesn't have the
  BTRFS_INODE_NEEDS_FULL_SYNC flag set) happened for our file and it logged
  a file extent item ending at offset X;

* the file got the flag BTRFS_INODE_NEEDS_FULL_SYNC set in its inode, due
  to a file truncate operation that reduces the file to a size smaller
  than X;

* a ranged fsync call happens (via an msync for example), with a range that
  doesn't cover the whole file and the end of this range, lets call it Y, is
  smaller than X;

* btrfs_log_inode, sees the flag BTRFS_INODE_NEEDS_FULL_SYNC set and
  calls btrfs_truncate_inode_items() to remove all items from the log
  tree that are associated with our file;

* btrfs_truncate_inode_items() removes all of the inode's items, and the lowest
  file extent item it removed is the one ending at offset X, where X > 0 and
  X > Y - before returning, it calls btrfs_ordered_update_i_size() with an offset
  parameter set to X;

* btrfs_ordered_update_i_size() sees that X is greater then the current ordered
  size (btrfs_inode's disk_i_size) and then it assumes there can't be any ongoing
  ordered operation with a range covering the offset X, calling a BUG_ON() if
  such ordered operation exists. This assumption is made because the disk_i_size
  is only increased after the corresponding file extent item is added to the
  btree (btrfs_finish_ordered_io);

* But because our fsync covers only a limited range, such an ordered extent might
  exist, and our fsync callback (btrfs_sync_file) doesn't wait for such ordered
  extent to finish when calling btrfs_wait_ordered_range();

And then by the time btrfs_ordered_update_i_size() is called, via:

   btrfs_sync_file() ->
       btrfs_log_dentry_safe() ->
           btrfs_log_inode_parent() ->
               btrfs_log_inode() ->
                   btrfs_truncate_inode_items() ->
                       btrfs_ordered_update_i_size()

We hit the BUG_ON(), which could never happen if the fsync range covered the whole
possible file range (0 to LLONG_MAX), as we would wait for all ordered extents to
finish before calling btrfs_truncate_inode_items().

So just don't call btrfs_ordered_update_i_size() if we're removing the inode's items
from a log tree, which isn't supposed to change the in memory inode's disk_i_size.

Issue found while running xfstests/generic/127 (happens very rarely for me), more
specifically via the fsx calls that use memory mapped IO (and issue msync calls).

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-09-02 16:46:05 -07:00
Filipe Manana
d9f85963e3 Btrfs: fix corruption after write/fsync failure + fsync + log recovery
While writing to a file, in inode.c:cow_file_range() (and same applies to
submit_compressed_extents()), after reserving an extent for the file data,
we create a new extent map for the written range and insert it into the
extent map cache. After that, we create an ordered operation, but if it
fails (due to a transient/temporary-ENOMEM), we return without dropping
that extent map, which points to a reserved extent that is freed when we
return. A subsequent incremental fsync (when the btrfs inode doesn't have
the flag BTRFS_INODE_NEEDS_FULL_SYNC) considers this extent map valid and
logs a file extent item based on that extent map, which points to a disk
extent that doesn't contain valid data - it was freed by us earlier, at this
point it might contain any random/garbage data.

Therefore, if we reach an error condition when cowing a file range after
we added the new extent map to the cache, drop it from the cache before
returning.

Some sequence of steps that lead to this:

    $ mkfs.btrfs -f /dev/sdd
    $ mount -o commit=9999 /dev/sdd /mnt
    $ cd /mnt

    $ xfs_io -f -c "pwrite -S 0x01 -b 4096 0 4096" -c "fsync" foo
    $ xfs_io -c "pwrite -S 0x02 -b 4096 4096 4096"
    $ sync

    $ od -t x1 foo
    0000000 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
    *
    0010000 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
    *
    0020000

    $ xfs_io -c "pwrite -S 0xa1 -b 4096 0 4096" foo

    # Now this write + fsync fail with -ENOMEM, which was returned by
    # btrfs_add_ordered_extent() in inode.c:cow_file_range().
    $ xfs_io -c "pwrite -S 0xff -b 4096 4096 4096" foo
    $ xfs_io -c "fsync" foo
    fsync: Cannot allocate memory

    # Now do a new write + fsync, which will succeed. Our previous
    # -ENOMEM was a transient/temporary error.
    $ xfs_io -c "pwrite -S 0xee -b 4096 16384 4096" foo
    $ xfs_io -c "fsync" foo

    # Our file content (in page cache) is now:
    $ od -t x1 foo
    0000000 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1
    *
    0010000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
    *
    0020000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    *
    0040000 ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee
    *
    0050000

    # Now reboot the machine, and mount the fs, so that fsync log replay
    # takes place.

    # The file content is now weird, in particular the first 8Kb, which
    # do not match our data before nor after the sync command above.
    $ od -t x1 foo
    0000000 ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee
    *
    0010000 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
    *
    0020000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    *
    0040000 ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee
    *
    0050000

    # In fact these first 4Kb are a duplicate of the last 4kb block.
    # The last write got an extent map/file extent item that points to
    # the same disk extent that we got in the write+fsync that failed
    # with the -ENOMEM error. btrfs-debug-tree and btrfsck allow us to
    # verify that:

    $ btrfs-debug-tree /dev/sdd
    (...)
	item 6 key (257 EXTENT_DATA 0) itemoff 15819 itemsize 53
		extent data disk byte 12582912 nr 8192
		extent data offset 0 nr 8192 ram 8192
	item 7 key (257 EXTENT_DATA 8192) itemoff 15766 itemsize 53
		extent data disk byte 0 nr 0
		extent data offset 0 nr 8192 ram 8192
	item 8 key (257 EXTENT_DATA 16384) itemoff 15713 itemsize 53
		extent data disk byte 12582912 nr 4096
		extent data offset 0 nr 4096 ram 4096

    $ umount /dev/sdd
    $ btrfsck /dev/sdd
    Checking filesystem on /dev/sdd
    UUID: db5e60e1-050d-41e6-8c7f-3d742dea5d8f
    checking extents
    extent item 12582912 has multiple extent items
    ref mismatch on [12582912 4096] extent item 1, found 2
    Backref bytes do not match extent backref, bytenr=12582912, ref bytes=4096, backref bytes=8192
    backpointer mismatch on [12582912 4096]
    Errors found in extent allocation tree or chunk allocation
    checking free space cache
    checking fs roots
    root 5 inode 257 errors 1000, some csum missing
    found 131074 bytes used err is 1
    total csum bytes: 4
    total tree bytes: 131072
    total fs tree bytes: 32768
    total extent tree bytes: 16384
    btree space waste bytes: 123404
    file data blocks allocated: 274432
     referenced 274432
    Btrfs v3.14.1-96-gcc7fd5a-dirty

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-09-02 16:46:05 -07:00
Gabriele Mazzotta
73f1ae8ab0 cpufreq: intel_pstate: Remove unneeded variable
It should have been removed with commit d1b6848590
("cpufreq / intel_pstate: Optimize intel_pstate_set_policy")

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:31:04 +02:00
Jacob Pan
fcdf1797e1 powercap / RAPL: change domain detection message
Many CPUs do not support complete set of RAPL domains, as a
result this detection failed message is very misleading and
can be annoying.

 [    5.082632] intel_rapl: RAPL domain core detection failed
 [    5.088370] intel_rapl: RAPL domain uncore detection failed

So lower the warning message to info and only print out the RAPL
domains that are supported.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:29:00 +02:00
Jason Baron
64c7569c06 powercap / RAPL: add support for CPU model 0x3f
I've confirmed that monitoring the package power usage as well as setting power
limits appear to be working as expected. Supports the package and dram domains.

Tested aginst cpu:

Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz

Signed-off-by: Jason Baron <jbaron@akamai.com>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:28:02 +02:00
Geert Uytterhoeven
d07e9c178f PM / domains: Make generic_pm_domain.name const
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:25:32 +02:00
Rafael J. Wysocki
62109b4317 PM / sleep: Fix test_suspend= command line option
After commit d431cbc53c (PM / sleep: Simplify sleep states sysfs
interface code) the pm_states[] array is not populated initially,
which causes setup_test_suspend() to always fail and the suspend
testing during boot doesn't work any more.

Fix the problem by using pm_labels[] instead of pm_states[] in
setup_test_suspend() and storing a pointer to the label of the
sleep state to test rather than the number representing it,
because the connection between the state numbers and labels is
only established by suspend_set_ops().

Fixes: d431cbc53c (PM / sleep: Simplify sleep states sysfs interface code)
Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:21:03 +02:00
Benjamin Tissoires
e7fdb762b9 platform/x86: toshiba: re-enable acpi hotkeys after suspend to disk
On the Toshiba Tecra Z40, after a suspend-to-disk, some FN hotkeys
driven by toshiba_acpi are not functional.

Calling the ACPI object ENAB on resume makes them back alive.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-09-02 15:45:36 -07:00
Mark Brown
f58f0cba15 Merge remote-tracking branches 'asoc/fix/axi', 'asoc/fix/cs4265', 'asoc/fix/da732x', 'asoc/fix/omap', 'asoc/fix/rsnd', 'asoc/fix/rt5640', 'asoc/fix/rt5677', 'asoc/fix/simple' and 'asoc/fix/tegra' into asoc-linus 2014-09-02 23:33:39 +01:00
Mark Brown
e65f6b1eb5 Merge remote-tracking branch 'asoc/fix/core' into asoc-linus 2014-09-02 23:33:38 +01:00
Mathias Krause
b3d94d7011 ideapad-laptop: Constify DMI table for real!
This is a follow-up patch to commit 49458e8308 ("ideapad-laptop:
Constify DMI table and other r/o variables") to do what its commit
message says. The actual commit differs from the patch posted at
https://www.mail-archive.com/platform-driver-x86@vger.kernel.org/msg05340.html
significantly, probably due to a bad merge conflict resolution. Fix up
the mess and constify the DMI table for real and fix the bogus
double-const of ideapad_rfk_data[].

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Cc: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-09-02 15:16:24 -07:00
Robert Elliott
dc501dc0d9 blk-mq: pass along blk_mq_alloc_tag_set return values
Two of the blk-mq based drivers do not pass back the return value
from blk_mq_alloc_tag_set, instead just returning -ENOMEM.

blk_mq_alloc_tag_set returns -EINVAL if the number of queues or
queue depth is bad.  -ENOMEM implies that retrying after freeing some
memory might be more successful, but that won't ever change
in the -EINVAL cases.

Change the null_blk and mtip32xx drivers to pass along
the return value.

Signed-off-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-09-02 15:39:03 -06:00
Lendacky, Thomas
bec6bfb243 amd-xgbe: Fix initialization of the wrong spin lock
During allocation and initialization of the network driver structures,
the wrong pointer is used to initialize a spin lock. Fix the spin lock
initialization by using the proper pointer.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 14:03:37 -07:00
Li RongQing
4ee45ea05c openvswitch: fix a memory leak
The user_skb maybe be leaked if the operation on it failed and codes
skipped into the label "out:" without calling genlmsg_unicast.

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 14:01:21 -07:00
Pablo Neira
41ad82f7f8 netfilter: fix missing dependencies in NETFILTER_XT_TARGET_LOG
make defconfig reports:

warning: (NETFILTER_XT_TARGET_LOG) selects NF_LOG_IPV6 which has unmet direct dependencies (NET && INET && IPV6 && NETFILTER && NETFILTER_ADVANCED)

Fixes: d79a61d netfilter: NETFILTER_XT_TARGET_LOG selects NF_LOG_*
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:59:54 -07:00
David S. Miller
abccc5878a Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
pull request: Netfilter/IPVS fixes for net

The following patchset contains seven Netfilter fixes for your net
tree, they are:

1) Make the NAT infrastructure independent of x_tables, some users are
   already starting to test nf_tables with NAT without enabling x_tables.
   Without this patch for Kconfig, there's a superfluous dependency
   between NAT and x_tables.
2) Allow to use 0 in the cgroup match, the kernel rejects with -EINVAL
   with no good reason. From Daniel Borkmann.

3) Select CONFIG_NF_NAT from the nf_tables NAT expression, this also
   resolves another NAT dependency with x_tables.

4) Use HAVE_JUMP_LABEL instead of CONFIG_JUMP_LABEL in the Netfilter hook
   code as elsewhere in the kernel to resolve toolchain problems, from
   Zhouyi Zhou.

5) Use iptunnel_handle_offloads() to set up tunnel encapsulation
   depending on the offload capabilities, reported by Alex Gartrell
   patch from Julian Anastasov.

6) Fix wrong family when registering the ip_vs_local_reply6() hook,
   also from Julian.

7) Select the NF_LOG_* symbols from NETFILTER_XT_TARGET_LOG. Rafał
   Miłecki reported that when jumping from 3.16 to 3.17-rc, his log
   target is not selected anymore due to changes in the previous
   development cycle to accomodate the full logging support for
   nf_tables.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:56:30 -07:00
Manish Chopra
04860eb7d9 bnx2x: Configure device endianity on driver load and reset endianity on removal.
Some hosts can be both little and big endian.
In certain scenarios a big endian kernel can kexec a little endian kernel.

This patch fixes this case from both ends:
1) Return endianity to original values on shutdown (in case little endian kernel boots after we shutdown).
2) Do not rely on HW reset values when loading driver in little endian kernel
   but configure them explicitly (in case previous kernel was big endian and did not reset the HW).

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:54:35 -07:00
Eugene Crosser
511c24456a qeth: don't query for info if hardware not ready.
When qeth device is queried for ethtool data, hardware operation
is performed to extract the necessary information from the card.
If the card is not online at the moment (e.g. it is undergoing
recovery), this operation produces undesired effects like
temporarily freezing the system. This patch prevents execution
of the hardware query operation when the card is not online.
In such case, ioctl() operation returns error with errno ENODEV.

Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:54:06 -07:00
Bartlomiej Zolnierkiewicz
c24f337968 net: calxedaxgmac: fix driver dependencies
Calxeda 1G/10G XGMAC Ethernet support should be available only on
Calxeda ECX-1000/2000 (Highbank/Midway) platforms.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:23:25 -07:00
Bartlomiej Zolnierkiewicz
f6ec9c335b net: sh_eth: fix driver dependencies
Renesas SuperH Ethernet support should be available only on
Renesas ARM SoCs and SuperH architecture.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:23:25 -07:00
Roland Stigge
aff88a0695 net: lpc_eth: Fix crash on ip link up
When a link is already up, the following sequence makes the kernel
block completely:

  ip link set dev eth0 down
  ip link set dev eth0 up

This is because on suspended phy, the following lines

  __lpc_eth_reset(pldat);
  __lpc_eth_init(pldat);

make the LPC ethernet core block (see LPC32x0 manual). The PHY needs to be
(re-)activated low-level first.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 13:21:55 -07:00