362818 Commits

Author SHA1 Message Date
Krzysztof Mazur
6d3bfc7be6 [libata] Fix HDIO_DRIVE_* ioctl() Linux 3.9 regression
On Mon, Mar 25, 2013 at 06:26:50PM +0100, Ronald wrote:
> In reply to [1]: I have the same issue. Git bisect took 50+ rebuilds xD
>
> Smartd does not work anymore since 84a9a8cd9 ([libata] Set proper SK
> when CK_COND is set.).

> [1] http://www.spinics.net/lists/linux-ide/msg45268.html

It seems that the SAM_STAT_CHECK_CONDITION is not cleared
causing -EIO, because that patch modified sensebuf and
the check for clearing SAM_STAT_CHECK_CONDITION is no longer valid.

Fix that.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:48:49 -04:00
David Woodhouse
8e725c7f8a libata: fix DMA to stack in reading devslp_timing parameters
Commit 803739d25c2343da6d2f95eebdcbc08bf67097d4 ("[libata] replace
sata_settings with devslp_timing"), which was also Cc: stable, used a
stack buffer to receive data from ata_read_log_page(), which triggers
the following warning:
 ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff880140469948]

Fix this by using ap->sector_buf instead of a stack buffer.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:45:57 -04:00
Youquan Song
b55f84e2d5 ata_piix: Fix DVD not dectected at some Haswell platforms
There is a quirk patch 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d
"ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge
 chipsets(v2)" fixing the 4 ports IDE controller 32bit PIO mode.

We've hit a problem with DVD not recognized on Haswell Desktop platform which
includes Lynx Point 2-port SATA controller.

This quirk patch disables 32bit PIO on this controller in IDE mode.

v2: Change spelling error in statememnt pointed by Sergei Shtylyov.
v3: Change comment statememnt and spliting line over 80 characters pointed by
    Libor Pechacek and also rebase the patch against 3.8-rc7 kernel.

Tested-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Youquan Song <youquan.song@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:43:36 -04:00
Shan Hai
a32450e127 libata: Set max sector to 65535 for Slimtype DVD A DS8A8SH drive
The Slimtype DVD A  DS8A8SH drive locks up when max sector is smaller than
65535, and the blow backtrace is observed on locking up:

INFO: task flush-8:32:1130 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
flush-8:32      D ffffffff8180cf60     0  1130      2 0x00000000
 ffff880273aef618 0000000000000046 0000000000000005 ffff880273aee000
 ffff880273aee000 ffff880273aeffd8 ffff880273aee010 ffff880273aee000
 ffff880273aeffd8 ffff880273aee000 ffff88026e842ea0 ffff880274a10000
Call Trace:
 [<ffffffff8168fc2d>] schedule+0x5d/0x70
 [<ffffffff8168fccc>] io_schedule+0x8c/0xd0
 [<ffffffff81324461>] get_request+0x731/0x7d0
 [<ffffffff8133dc60>] ? cfq_allow_merge+0x50/0x90
 [<ffffffff81083aa0>] ? wake_up_bit+0x40/0x40
 [<ffffffff81320443>] ? bio_attempt_back_merge+0x33/0x110
 [<ffffffff813248ea>] blk_queue_bio+0x23a/0x3f0
 [<ffffffff81322176>] generic_make_request+0xc6/0x120
 [<ffffffff81322308>] submit_bio+0x138/0x160
 [<ffffffff811d7596>] ? bio_alloc_bioset+0x96/0x120
 [<ffffffff811d1f61>] submit_bh+0x1f1/0x220
 [<ffffffff811d48b8>] __block_write_full_page+0x228/0x340
 [<ffffffff811d3650>] ? attach_nobh_buffers+0xc0/0xc0
 [<ffffffff811d8960>] ? I_BDEV+0x10/0x10
 [<ffffffff811d8960>] ? I_BDEV+0x10/0x10
 [<ffffffff811d4ab6>] block_write_full_page_endio+0xe6/0x100
 [<ffffffff811d4ae5>] block_write_full_page+0x15/0x20
 [<ffffffff811d9268>] blkdev_writepage+0x18/0x20
 [<ffffffff81142527>] __writepage+0x17/0x40
 [<ffffffff811438ba>] write_cache_pages+0x34a/0x4a0
 [<ffffffff81142510>] ? set_page_dirty+0x70/0x70
 [<ffffffff81143a61>] generic_writepages+0x51/0x80
 [<ffffffff81143ab0>] do_writepages+0x20/0x50
 [<ffffffff811c9ed6>] __writeback_single_inode+0xa6/0x2b0
 [<ffffffff811ca861>] writeback_sb_inodes+0x311/0x4d0
 [<ffffffff811caaa6>] __writeback_inodes_wb+0x86/0xd0
 [<ffffffff811cad43>] wb_writeback+0x1a3/0x330
 [<ffffffff816916cf>] ? _raw_spin_lock_irqsave+0x3f/0x50
 [<ffffffff811b8362>] ? get_nr_inodes+0x52/0x70
 [<ffffffff811cb0ac>] wb_do_writeback+0x1dc/0x260
 [<ffffffff8168dd34>] ? schedule_timeout+0x204/0x240
 [<ffffffff811cb232>] bdi_writeback_thread+0x102/0x2b0
 [<ffffffff811cb130>] ? wb_do_writeback+0x260/0x260
 [<ffffffff81083550>] kthread+0xc0/0xd0
 [<ffffffff81083490>] ? kthread_worker_fn+0x1b0/0x1b0
 [<ffffffff8169a3ec>] ret_from_fork+0x7c/0xb0
 [<ffffffff81083490>] ? kthread_worker_fn+0x1b0/0x1b0

 The above trace was triggered by
   "dd if=/dev/zero of=/dev/sr0 bs=2048 count=32768"

 It was previously working by accident, since another bug introduced
 by 4dce8ba94c7 (libata: Use 'bool' return value for ata_id_XXX) caused
 all drives to use maxsect=65535.

Cc: stable@vger.kernel.org
Signed-off-by: Shan Hai <shan.hai@windriver.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:33:43 -04:00
Shan Hai
d8668fcb0b libata: Use integer return value for atapi_command_packet_set
The function returns type of ATAPI drives so it should return integer value.
The commit 4dce8ba94c7 (libata: Use 'bool' return value for ata_id_XXX) since
v2.6.39 changed the type of return value from int to bool, the change would
cause all of the ATAPI class drives to be treated as TYPE_TAPE and the
max_sectors of the drives to be set to 65535 because of the commit
f8d8e5799b7(libata: increase 128 KB / cmd limit for ATAPI tape drives), for the
function would return true for all ATAPI class drives and the TYPE_TAPE is
defined as 0x01.

Cc: stable@vger.kernel.org
Signed-off-by: Shan Hai <shan.hai@windriver.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-04-03 19:33:40 -04:00
Linus Torvalds
66ade47423 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Another round of ARM fixes, which include:
   - Fixing a problem with LPAE mapping sections
   - Reporting of some hwcaps on Krait CPUs
   - Avoiding repetitive warnings in the breakpoint code
   - Fixing a build error noticed on Dove platforms with PJ4 CPUs
   - Fix masking of level 2 cache revision.
   - Fixing timer-based udelay()
   - A larger fix for an erratum causing people major grief with Cortex
     A15 CPUs"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7690/1: mm: fix CONFIG_LPAE typos
  ARM: 7689/1: add unwind annotations to ftrace asm
  ARM: 7685/1: delay: use private ticks_per_jiffy field for timer-based delay ops
  ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations)
  ARM: 7682/1: cache-l2x0: fix masking of RTL revision numbering and set_debug init
  ARM: iWMMXt: always enable iWMMXt support with PJ4 CPUs
  ARM: 7681/1: hw_breakpoint: use warn_once to avoid spam from reset_ctrl_regs()
  ARM: 7678/1: Work around faulty ISAR0 register in some Krait CPUs
  ARM: 7680/1: Detect support for SDIV/UDIV from ISAR0 register
  ARM: 7679/1: Clear IDIVT hwcap if CONFIG_ARM_THUMB=n
  ARM: 7677/1: LPAE: Fix mapping in alloc_init_section for unaligned addresses
  ARM: KVM: vgic: take distributor lock on sync_hwstate path
  ARM: KVM: vgic: force EOIed LRs to the empty state
2013-04-03 16:15:17 -07:00
Rafael J. Wysocki
de7d5f729c PCI/PM: Disable runtime PM of PCIe ports
The runtime PM of PCIe ports turns out to be quite fragile, as in
some cases things work while in some other cases they don't and we
don't seem to have a good way to determine whether or not they are
going to work in advance.

For this reason, avoid enabling runtime PM for PCIe ports by
keeping their runtime PM reference counters always above 0 for the
time being.

When a PCIe port is suspended, it can no longer report events like
hotplug, so hotplug below the port may not work, as in the bug
report below.

[bhelgaas: changelog, stable]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=53811
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v3.6+
2013-04-03 15:54:59 -06:00
Rafael J. Wysocki
24ad0ef9c8 PCI/ACPI: Always resume devices on ACPI wakeup notifications
It turns out that the _Lxx control methods provided by some BIOSes
clear the PME Status bit of PCI devices they handle, which means that
pci_acpi_wake_dev() cannot really use that bit to check whether or
not the device has signalled wakeup.

One symptom of the problem is, for example, that when an affected PCI
USB controller is runtime-suspended, then plugging in a new USB device
into one of the controller's ports will not wake up the controller,
which should happen.

For this reason, make pci_acpi_wake_dev() always attempt to resume
the device it is called for regardless of the device's PME Status bit
value (that bit still has to be cleared if set at this point,
though).

Reported-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
CC: stable@vger.kernel.org	# v3.7+
2013-04-03 15:49:52 -06:00
Alexey Pelykh
1f66396682 OMAP/serial: Revert bad fix of Rx FIFO threshold granularity
Partially reverts 1776fd059c40907297d6c26c51876575d63fd9e2
that introduced regression reported by Paul Walmsley.

This commit restores setting granularity in SCR register
and adds note about comments below being inconsistent with
actual code.

Signed-off-by: Alexey Pelykh <alexey.pelykh@gmail.com>
Tested-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-03 13:25:11 -07:00
Asai Thambi S P
0caff00390 mtip32xx: Add debugfs entry device_status
This patch adds a new debugfs entry 'device_status' in
/sys/kernel/debug/rssd. The value of this entry shows
devices online and those in the process of removing.

Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-04-03 21:54:02 +02:00
Asai Thambi S P
6b06d35f3f mtip32xx: return 0 from pci probe in case of rebuild
Fix to return 0 from pci probe in case of rebuild. If not, pci consider
probe has failed, and crash during rmmod.

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-04-03 21:54:02 +02:00
Asai Thambi S P
d0d096b1d8 mtip32xx: recovery from command timeout
To recover from command timeouts, reset the device. In addition
to that improved timeout handling of PIO commands.

Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-04-03 21:54:01 +02:00
Arnd Bergmann
c678ef5286 block: avoid using uninitialized value in from queue_var_store
As found by gcc-4.8, the QUEUE_SYSFS_BIT_FNS macro creates functions
that use a value generated by queue_var_store independent of whether
that value was set or not.

block/blk-sysfs.c: In function 'queue_store_nonrot':
block/blk-sysfs.c:244:385: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized]

Unlike most other such warnings, this one is not a false positive,
writing any non-number string into the sysfs files indeed has
an undefined result, rather than returning an error.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-04-03 21:53:57 +02:00
Guenter Roeck
6d4f0139d6 misc/vmw_vmci: Add dependency on CONFIG_NET
Building the vmw_vmci driver with CONFIG_NET undefined results in:

drivers/built-in.o: In function `__qp_memcpy_from_queue.isra.13':
vmci_queue_pair.c:(.text+0x1671a8): undefined reference to `memcpy_toiovec'
drivers/built-in.o: In function `__qp_memcpy_to_queue.isra.14':
vmci_queue_pair.c:(.text+0x167341): undefined reference to `memcpy_fromiovec'
make[1]: [vmlinux] Error 1 (ignored)

since memcpy_toiovec and memcpy_fromiovec are defined in the networking code.
Add the missing dependency.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-03 11:53:39 -07:00
Gabor Juhos
69a2bac898 rt2x00: rt2x00pci: fix build error on Ralink RT3x5x SoCs
The rt2800pci driver supports the built-in wireless
MAC of the Ralink RT3x5x SoCs. However building the
driver for these SoCs leads to the following error:

    LD      init/built-in.o
  drivers/built-in.o: In function `rt2800pci_rxdone_tasklet':
  <...>/drivers/net/wireless/rt2x00/rt2800pci.c:1012: undefined reference to `rt2x00pci_rxdone'
  drivers/built-in.o:(.rodata+0x4780): undefined reference to `rt2x00pci_initialize'
  drivers/built-in.o:(.rodata+0x4784): undefined reference to `rt2x00pci_uninitialize'
  drivers/built-in.o:(.rodata+0x47bc): undefined reference to `rt2x00pci_flush_queue'
  drivers/built-in.o:(.rodata+0x4818): undefined reference to `rt2x00pci_regbusy_read'
  make[5]: *** [vmlinux] Error 1

The missing functions are provided by the rt2x00pci
module. This module is only selected by the rt2800pci
driver if PCI support is enabled in the kernel, because
some parts of the rt2x00pci code depends on PCI support.

PCI support is not available on the RT3x5x SoCs because
those have no PCI host controller at all.

Move the non PCI specific code from rt2x00pci into a
separate module. This makes it possible to use that
code even if PCI support is disabled. The affected
functions are used by all of the rt2x00 PCI drivers
so select the new module for those drivers.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:50:06 -04:00
Tim Gardner
83589b30f1 rt2x00: rt2x00pci_regbusy_read() - only print register access failure once
BugLink: http://bugs.launchpad.net/bugs/1128840

It appears that when this register read fails it never recovers, so
I think there is no need to repeat the same error message ad infinitum.

Cc: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: users@rt2x00.serialmonkey.com
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:50:06 -04:00
Guennadi Liakhovetski
5448bd8ca1 tty: Documentation: fix a path in a DocBook template
A wrong path to a driver breaks DocBook built.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-03 11:45:38 -07:00
Robert Shade
f50b1cd374 ath9k: Re-enable interrupts after a channel change failure
ath_complete_reset will not be called if ath9k_hw_reset
is unsuccessful, so we need to re-enable intertupts to
balence the previous ath_prepare_reset call.  Also schedule a
reset as a best effort method to recover the chip from
whatever state caused the channel change failure.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=55771

Signed-off-by: Robert Shade <robert.shade@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:57 -04:00
Franky Lin
3eaa956c5b brcmfmac: do not proceed if fail to download nvram to dongle
Nvram contains critical initialization parameter for firmware to run. Host
driver should not proceed if nvram fails to be downloaded to dongle.

Reviewed-by: Piotr Haber <phaber@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:57 -04:00
Hante Meuleman
c5bf53a826 brcmfmac: fix returning cipher_suite for get_key operation.
When multiple cipher suites have been programmed then the lowest
suite is to be retured. This fixes issue when AP mode is using
CCMP and TKIP WPA combination where rekeying will fail.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:57 -04:00
Hante Meuleman
5c33a94204 brcmfmac: fix stopping AP.
on stop_ap the dongle was not properly shutdown. As a result it was
not possible to restart AP or STA after AP operation without
restarting the device. This patch will fix that.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:56 -04:00
Hante Meuleman
992f6068f0 brcmfmac: fix tkip mic tx/rx ap swap bug.
tx and rx michael tkip keys are always swapped in case being
configured per mac. This is wrong for AP. The swap should only
be done for STA mode.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:56 -04:00
Bing Zhao
21de979ecf mwifiex: complete last internal scan
We are waiting on first scan command of internal scan request
before association, so we should complete on last internal scan
command response.

Cc: <stable@vger.kernel.org> # 3.8
Tested-by: Daniel Drake <dsd@laptop.org>
Tested-by: Marco Cesarano <marco@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-03 14:31:56 -04:00
Linus Torvalds
cbfa0e7204 Unfortunately, we introduced some big-endian bugs during the last
merge window.  Fortunately, Cai and Christian noticed before 3.9
 shipped.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABCAAGBQJRXG7FAAoJENNvdpvBGATw7GAQALbl5LxmVmGR6JRQzNoINP+H
 v29ulo1Kly4j2vt+3b0rXKv9axWl0C/dItFlC/9WqmwuB/0BptBKIVnkKH+6zu2v
 F+cO41gfpJo3ozcgsCrjvWfdkTWbjbPTQ4XiQDFILkwiB4R9KdpynKcVcjDY+gQE
 umwJpXwDDd+fdr4FNQiFFPqd8rCC8fEeClWTtOFx7UidKl8v18iZ0/OPiAr+jBOY
 rlcaZ9F8nmOJTwgriGbod4X827xEDj7Jwe7/C6oy/lKLOTLhaahgHPDW/l0O4KZA
 4eJLj/5nxmYling4Y+rQvglVhNJ4LNv+IAXu5IpqRxosPYFnxQq+JYn8D5BlXifd
 0/hG+BwTkhm4RLJ8uQvUxxglZNQEWeSuIma4dnZX3Xf9AzsvNW9x3Iilj3F7dhUS
 6h9aeoYKv9y7GY9Out1P/UZYVi4HmB3jHiOcdTNCK4plQ3Sn2NYMw6RK1z4cXvE+
 Pokc0a9KNyusNSI83tDtjRjan9NzsRbTggoGVf19RVoIVqIjkyXzUGasO/y+mKhp
 LENAjkABdbLB1Re8B/99KwgIloUTvxGcojLKzkEbgcobruvEwKvxIrTi+fgNOiu6
 GqJOh8TwZtx3SGJujsyOSBBrdPfjPHReBWrX0VRHl/Wsd4RWCaDT8H1EdNONQ+to
 lQ+JvTZgFwQB2GABjNB6
 =n1ir
 -----END PGP SIGNATURE-----

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Unfortunately, we introduced some big-endian bugs during the last
  merge window.  Fortunately, Cai and Christian noticed before 3.9
  shipped."

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix big-endian bugs which could cause fs corruptions
2013-04-03 11:21:13 -07:00
John W. Linville
9306a398e7 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2013-04-03 14:19:48 -04:00
John W. Linville
407ad2b7ef Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-04-03 13:50:34 -04:00
Linus Torvalds
cd0e4a9dd4 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull reiserfs fix from Jan Kara:
 "A fix for reiserfs xattr bug exposed by changes to lookup_one_len()"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: Fix warning and inode leak when deleting inode with xattrs
2013-04-03 10:49:27 -07:00
Linus Torvalds
17eb3d8fbe Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "Just a bunch of bugfixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/mm: provide emtpy check_pgt_cache() function
  s390/uaccess: fix page table walk
  s390/3270: fix minor_start issue
  s390/uaccess: fix clear_user_pt()
  s390/scm_blk: fix error return code in scm_blk_init()
  s390/scm_block: fix printk format string
  drivers/Kconfig: add several missing GENERIC_HARDIRQS dependencies
2013-04-03 10:48:22 -07:00
Lars-Peter Clausen
5aa995e83a ASoC: tegra: Don't claim to support PCM pause and resume
The tegra dmaengine driver does not support pausing and resuming a DMA stream.
The tegra PCM driver still claims to support pause and resume though and
implements them by stopping and restarting the stream. This is not what an
application using pause/resume would expect. Usually applications have support
for working around PCMs which do not support suspend and resume, so don't set
the SNDRV_PCM_INFO_PAUSE and SNDRV_PCM_INFO_RESUME flags for the tegra PCM and
use the default snd_dmaengine_pcm_trigger callback.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03 18:11:08 +01:00
Prathyush K
c6f9b1eb0e ASoC: Samsung: set drvdata before adding secondary device
Currently, a new platform device is created for secondary device
by calling platform_device_register_resndata and then the drvdata
is set for this device.

The following patch has been added to driver core:
"driver core: fix possible missing of device probe".

This results in the added device getting probed immediately but
the drvdata for the secondary device is not yet set.
This patch removes the platform_device_register_resndata call and
instead calls platform_device_alloc, platform_set_drvdata and
platform_device_add which fixes the above issue.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03 17:56:44 +01:00
Prathyush K
a9b977ecd3 ASoC: Samsung: return error if drvdata is not set
This patch fixes a possible crash in case drvdata for the secondary
device is not set.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-03 17:56:43 +01:00
Zheng Liu
8cde7ad17e ext4: fix big-endian bugs which could cause fs corruptions
When an extent was zeroed out, we forgot to do convert from cpu to le16.
It could make us hit a BUG_ON when we try to write dirty pages out.  So
fix it.

[ Also fix a bug found by Dmitry Monakhov where we were missing
  le32_to_cpu() calls in the new indirect punch hole code.

  There are a number of other big endian warnings found by static code
  analyzers, but we'll wait for the next merge window to fix them all
  up.  These fixes are designed to be Obviously Correct by code
  inspection, and easy to demonstrate that it won't make any
  difference (and hence, won't introduce any bugs) on little endian
  architectures such as x86.  --tytso ]

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: CAI Qian <caiqian@redhat.com>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Cc: Dmitry Monakhov <dmonakhov@openvz.org>
2013-04-03 12:37:17 -04:00
Paul Bolle
4e1db26a0b ARM: 7690/1: mm: fix CONFIG_LPAE typos
CONFIG_LPAE doesn't exist: the correct option is CONFIG_ARM_LPAE, so fix
up the two typos under arch/arm/.

The fix to head.S is slightly scary, but this is just for setting up
an early io-mapping for the serial port when running on a big-endian,
LPAE system. Since these systems don't exist in the wild (at least, I
have no access to one outside of kvmtool, which doesn't provide a serial
port suitable for earlyprintk), then we can revisit the code later if it
causes any problems.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:51 +01:00
Rabin Vincent
b21e023ba4 ARM: 7689/1: add unwind annotations to ftrace asm
Add unwind annotations to the ftrace assembly code so that the function
tracer's stacktracing options (func_stack_trace, etc.) work when
CONFIG_ARM_UNWIND is enabled.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:50 +01:00
Will Deacon
6f3d90e556 ARM: 7685/1: delay: use private ticks_per_jiffy field for timer-based delay ops
Commit 70264367a243 ("ARM: 7653/2: do not scale loops_per_jiffy when
using a constant delay clock") fixed a problem with our timer-based
delay loop, where loops_per_jiffy is scaled by cpufreq yet used directly
by the timer delay ops.

This patch fixes the problem in a more elegant way by keeping a private
ticks_per_jiffy field in the delay ops, independent of loops_per_jiffy
and therefore not subject to scaling. The loop-based delay continues to
use loops_per_jiffy directly, as it should.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:50 +01:00
Catalin Marinas
93dc68876b ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations)
On Cortex-A15 (r0p0..r3p2) the TLBI/DSB are not adequately shooting down
all use of the old entries. This patch implements the erratum workaround
which consists of:

1. Dummy TLBIMVAIS and DSB on the CPU doing the TLBI operation.
2. Send IPI to the CPUs that are running the same mm (and ASID) as the
   one being invalidated (or all the online CPUs for global pages).
3. CPU receiving the IPI executes a DMB and CLREX (part of the exception
   return code already).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:49 +01:00
Rob Herring
6e7aceeb7c ARM: 7682/1: cache-l2x0: fix masking of RTL revision numbering and set_debug init
Commit b8db6b8 (ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache
ctrl) moved the masking of the part ID which caused the RTL version to be
lost. Commit 6248d06 (ARM: 7545/1: cache-l2x0: make outer_cache_fns a
field of l2x0_of_data) changed how .set_debug is initialized. Both commits
break commit 74ddcdb (ARM: 7608/1: l2x0: Only set .set_debug
on PL310 r3p0 and earlier) which uses the RTL version to conditionally set
.set_debug function pointer. Commit b8db6b8 also caused the printed cache
ID to be missing the version information.

Fix this by reverting how the part number is masked so the RTL version
info is maintained. The cache-id-part DT property does not set the RTL
bits so masking them should have no effect. Also, re-arrange the order
of the function pointer init so the .set_debug function can be overridden.

Reported-by: Paolo Pisati <paolo.pisati@canonical.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:48 +01:00
Russell King
698613b638 ARM: iWMMXt: always enable iWMMXt support with PJ4 CPUs
Jason Cooper reports these build errors:
arch/arm/kernel/built-in.o: In function `iwmmxt_do':
/.../arch/arm/kernel/pj4-cp0.c:36: undefined reference to `iwmmxt_task_release'
/.../arch/arm/kernel/pj4-cp0.c:40: undefined reference to `iwmmxt_task_switch'
make: *** [vmlinux] Error 1

This is caused because the PJ4 code explicitly references the iWMMXt
code, but doesn't require it to be built.  Fix this by ensuring that
iWMMXt is always enabled with PJ4.

Reported-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:40:33 +01:00
Torstein Hegge
690a863ff0 ALSA: usb: Work around CM6631 sample rate change bug
The C-Media CM6631 USB receiver doesn't respond to changes in sample rate
while the interface is active. The same behavior is observed in other UAC2
hardware like the VIA VT1731.

Reset the interface after setting the sampling frequency on sample rate
changes, to ensure that the sample rate set by snd_usb_init_sample_rate() is
used. Otherwise, the device will try to use the sample rate of the previous
stream, causing distorted sound on sample rate changes.

The reset is performed for all UAC2 devices, as it should not affect a
standards compliant device, but it is only necessary for C-Media CM6631,
VIA VT1731 and possibly others.

Failure to read sample rate from the device is not handled as an error in
set_sample_rate_v2(), as (permanent or intermittent) failure to read sample
rate isn't essential for a successful sample rate set.

Signed-off-by: Torstein Hegge <hegge@resisty.net>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-03 17:05:44 +02:00
Tony Luck
e66cd5372d ACPI / BGRT: Don't let users configure BGRT on non X86 systems
Fengguang Wu's 0-Day kernel build testing backend found the
following build error for an allmodconfig build on ia64:

   drivers/built-in.o: In function `show_yoffset':
>> bgrt.c:(.text+0xe5a71): undefined reference to `bgrt_tab'
>> bgrt.c:(.text+0xe5a91): undefined reference to `bgrt_tab'
   drivers/built-in.o: In function `show_xoffset':
>> bgrt.c:(.text+0xe5b51): undefined reference to `bgrt_tab'
>> bgrt.c:(.text+0xe5b71): undefined reference to `bgrt_tab'
   drivers/built-in.o: In function `show_type':
>> bgrt.c:(.text+0xe5c31): undefined reference to `bgrt_tab'
   drivers/built-in.o:bgrt.c:(.text+0xe5c51): more undefined references to `bgrt_tab' follow
   drivers/built-in.o: In function `bgrt_init':
   bgrt.c:(.init.text+0x8931): undefined reference to `bgrt_image'
   bgrt.c:(.init.text+0x8932): undefined reference to `bgrt_image_size'
   bgrt.c:(.init.text+0x8950): undefined reference to `bgrt_image'
   bgrt.c:(.init.text+0x8960): undefined reference to `bgrt_image_size'

The problem is that all these undefined names are provided by
arch/x86/platform/efi/efi-bgrt.c - which is obviously not available
to the ia64 build.

It doesn't seem useful to provide the BGRT support for Itanium
(many systems are headless and have no graphics at all). So
just don't let users configure this driver on non-X86 machines.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-03 13:17:20 +02:00
Matthias Schiffer
906b1c394d netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengths
The bitmask used for the prefix mangling was being calculated
incorrectly, leading to the wrong part of the address being replaced
when the prefix length wasn't a multiple of 32.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-03 12:24:56 +02:00
Linus Torvalds
da241efcd9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix VSOCK layer handling of context ID changes, from Reilly Grant.

 2) Now that we have a synchronize_net() in netdev_rx_handler_unregister(),
    we can't let any call sites hold locks.  Unfortunately bonding does,
    so we have to drop the rwlock there a little bit earlier, fix from
    Veaceslav Falico.

 3) MAC address setting loop exits one iteration too early in mlx4
    driver, from Yan Burman.

 4) Restore ipv6 routes properly upon ifdown/ifup of loopback, from
    Balakumaran Kannan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  VSOCK: Handle changes to the VMCI context ID.
  net IPv6 : Fix broken IPv6 routing table after loopback down-up
  cbq: incorrect processing of high limits
  net/mlx4_en: Fix setting initial MAC address
  bonding: get netdev_rx_handler_unregister out of locks
2013-04-02 18:58:01 -07:00
Linus Torvalds
6e8517a90b regmap: Fixes for v3.9
A small collection of fixes.  The most important ones are those from
 Stephen and Lars-Peter both of which fix cache issues that have been
 lurking for a while but not manifesting noticably enough for anyone to
 report them.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJRWLjSAAoJELSic+t+oim9fHgP/i3g9zqKJM8n4vG/pAi4NJEl
 zUgKn5sdHinIqbTZ6712MvMTtiOZtGmarPKHhR63G1Z6jJFFukWuLW4P+KJiIKI/
 Gen/gEOt6NEed/Q5es9SRzoP1Nz8EMmht7G7JJ3e1u0+ZRjmdTjNALmr/BV6FwGq
 Oul2PpF/O2F08eLl8GtD7wbqbKAq8qOnBjjjTdeJRX7zinDef8PqaCRIASYY5B1Q
 i05oREcQt4IaJj5IV7OdXCfuiw2+N2E9gmEYFWOXHpSXmABmgiEYJ5OYjUkPQUHm
 Nzf9pRhRgcWFZ/LtKZYZ1o8Vl7SehXUNxWx8QUcm4qohO1Wk/MO7ln+blqpDxuSS
 D0DpFS09+o4yB2UR0agX5LyYNyQN8e9kLIf7GfaRyxWERs1g7f2hPehuyz2Pb3AU
 L5EvuTl9QXbaNefIJuxaigXo3kK0WUkPEQwJFafQjhmFpa/LJJn2YA4P5zx6ovps
 1eby5ssCOANVAASoUIbWqP1xZ1/A3KP6B5okxmSFSruOYaG7AiEW30B1n2dNOZKq
 X0ZWwWx+qswQltvqTYcgkMRxiyL69d1MHHSEq4R82e8ZvgCSCb73ImCsy6C3nIQk
 aEX6ZiUbLCXO+0mEc7e8airamEG24Y7sMW0kVQ1M3J3XDJdEpX7656IXM6JvVXFm
 x4+HNj5yua4yccNZN9KX
 =QF+V
 -----END PGP SIGNATURE-----

Merge tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "A small collection of fixes.  The most important ones are those from
  Stephen and Lars-Peter both of which fix cache issues that have been
  lurking for a while but not manifesting noticably enough for anyone to
  report them."

* tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: async: Add missing return
  regmap: don't corrupt work buffer in _regmap_raw_write()
  regmap: cache Fix regcache-rbtree sync
  regmap: Initialize `map->debugfs' before regcache
2013-04-02 18:53:43 -07:00
Linus Torvalds
bd709bd027 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull DRM fixes from Dave Airlie:
 "Two core fixes, both regressions, along with some intel and some
  nouveau fixes for regressions and oopses"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: correctly restore mappings if drm_open fails
  drm/nouveau: fix NULL ptr dereference from nv50_disp_intr()
  drm/nouveau: fix handling empty channel list in ioctl's
  drm: don't unlock in the addfb error paths
  drm/i915: Fix build failure
  drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
  drm/i915: duct-tape locking when eDP init fails
2013-04-02 18:52:24 -07:00
Linus Torvalds
aea7fab8ba Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "A collection of fixes pretty much across the MIPS code.  Even the
  change to include/linux/signal.h by David Howells' 2a1486981c13 ("Fix
  breakage in MIPS siginfo handling") should be considered MIPS-specific
  as it touches an ifdefed segment that is only relevant to MIPS and
  which unfortunately can't be made to go away entirely."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  Fix breakage in MIPS siginfo handling
  Revert "MIPS: BCM63XX: Call board_register_device from device_initcall()"
  MIPS: BCM63XX: Make nvram checksum failure non fatal
  MIPS: Fix code generation for non-DSP capable CPUs
  MIPS: Fix inconsistent formatting inside /proc/cpuinfo
  MIPS: SEAD3: Enable LL/SC.
  MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
  MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
  MIPS: VR4133: Fix probe for LL/SC.
  MIPS: Fix logic errors in bitops.c
  MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
  MIPS: compat: Return same error ENOSYS as native for invalid operation.
2013-04-02 18:47:23 -07:00
Marek Vasut
55985e15b8 ARM: mxs: Slow down the I2C clock speed
Slow down the I2C clock speed on M28 and SPS1 as it turns out the
I2C block in i.MX28 can not operate stable enough with the bus
running at 400kHz. Note that the driver used by Freescale runs
the bus at 250kHz when 400kHz speed is selected, but the mainline
Linux kernel runs the bus at actual 400kHz and that's where it is
occasionally unstable. Play safe and run the bus at 100kHz.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-03 09:34:01 +08:00
Konstantin Khlebnikov
6e0eda3c38 PCI: Don't try to disable Bus Master on disconnected PCI devices
This is a fix for commit 7897e60227 ("PCI: Disable Bus Master
unconditionally in pci_device_shutdown()").  Vivek reported that
with this commit, kexec failed because none of his SATA disks
came up.

A ->shutdown() callback might put the device in D3cold, which means config
space is no longer available.

[bhelgaas: changelog]
Link: https://lkml.org/lkml/2013/3/12/529
Reported-and-Tested-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-02 18:03:09 -06:00
Bjorn Helgaas
b8178f130e Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
This reverts commit 8c33f51df406e1a1f7fa4e9b244845b7ebd61fa6.

Conflicts:
	drivers/acpi/pci_root.c

This commit broke some pre-1.1 PCIe devices by leaving them with
ASPM enabled.  Previously, we had disabled ASPM on these devices
because many of them don't implement it correctly (per 149e1637).

Requesting _OSC control early means that aspm_disabled may be set
before we scan the PCI bus and configure link ASPM state.  But the
ASPM configuration currently skips the check for pre-PCIe 1.1 devices
when aspm_disabled is set, like this:

    acpi_pci_root_add
      acpi_pci_osc_support
        if (flags != base_flags)
          pcie_no_aspm
            aspm_disabled = 1
      pci_acpi_scan_root
        ...
          pcie_aspm_init_link_state
            pcie_aspm_sanity_check
              if (!aspm_disabled)
                /* check for pre-PCIe 1.1 device */

Therefore, setting aspm_disabled early means that we leave ASPM enabled
on these pre-PCIe 1.1 devices, which is a regression for some devices.

The best fix would be to clean up the ASPM init so we can evaluate
_OSC before scanning the bug (that way boot-time and hot-add discovery
will work the same), but that requires significant rework.

For now, we'll just revert the _OSC change as the lowest-risk fix.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=55211
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: stable@vger.kernel.org	# v3.8+
2013-04-02 18:02:40 -06:00
Bjorn Helgaas
be7f088bd0 Merge branch 'pci/yinghai-eisa' into for-linus
* pci/yinghai-eisa:
  EISA/PCI: Init EISA early, before PNP
  EISA/PCI: Fix bus res reference
2013-04-02 18:02:28 -06:00
Asias He
af0d9187f6 tcm_vhost: Use ACCESS_ONCE for vs->vs_tpg[target] access
In vhost_scsi_handle_vq:

      tv_tpg = vs->vs_tpg[target];
      if (!tv_tpg) {
              ....
              return
      }

      tv_cmd = vhost_scsi_allocate_cmd(tv_tpg, &v_req,

1) vs->vs_tpg[target] might change after the NULL check and 2) the above
line might access tv_tpg from vs->vs_tpg[target]. To prevent 2), use
ACCESS_ONCE. Thanks mst for catching this up!

Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-04-02 16:43:34 -07:00