Commit Graph

389263 Commits

Author SHA1 Message Date
Mark Brown
62696579a0 Merge remote-tracking branch 'regulator/topic/da9063' into regulator-next 2013-09-01 13:50:07 +01:00
Mark Brown
1ad13028e5 Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2013-09-01 13:50:06 +01:00
Mark Brown
5288be36cd Merge remote-tracking branch 'regulator/topic/as3711' into regulator-next 2013-09-01 13:50:05 +01:00
Mark Brown
28c37c9ce8 Merge remote-tracking branch 'regulator/topic/88pm800' into regulator-next 2013-09-01 13:50:04 +01:00
Axel Lin
632b3d62bc regulator: da9063: Statize da9063_ldo_lim_event
da9063_ldo_lim_event() is only referenced in this driver, make it static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-01 13:44:18 +01:00
Axel Lin
e515800b74 regulator: da9063: Use IS_ERR to check return value of regulator_register()
regulator_register() does not return NULL, it returns ERR_PTR on error.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30 15:24:42 +01:00
Axel Lin
556dcf903d regulator: da9063: Optimize da9063_set_current_limit implementation
All the current limit tables have the values in ascend order.
So we can slightly optimize the for loop iteration because the first match
is the minimal value.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30 15:24:42 +01:00
Krystian Garbaciak
69ca3e58d1 regulator: da9063: Add Dialog DA9063 voltage regulators support.
The driver adds support for the following DA9063 PMIC regulators:
 - 11x LDOs (named LDO1 - LDO11),
 - 6x buck converters (BCORE1, BCORE2, BPRO, BMEM, BIO, BPERI),

Regulators provide following operations:
 - REGULATOR_CHANGE_STATUS and REGULATOR_CHANGE_VOLTAGE for all regulators,
 - REGULATOR_CHANGE_MODE for LDOs and buck converters, where:
     - LDOs allow REGULATOR_MODE_NORMAL and REGULATOR_MODE_STANDBY,
     - buck converters allow REGULATOR_MODE_FAST, REGULATOR_MODE_NORMAL
       and REGULATOR_MODE_STANDBY,
 - REGULATOR_CHANGE_CURRENT for buck converters (current limits).

The driver generates REGULATOR_EVENT_OVER_CURRENT for LDO3, LDO4, LDO7, LDO8
and LDO11.

Internally, PMIC provides two voltage configurations for normal and suspend
system state for each regulator. The driver switches between those on
suspend/wake-up to provide quick and fluent output voltage change.

This driver requires MFD core driver for operation.

Signed-off-by: Krystian Garbaciak <krystian.garbaciak@diasemi.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-29 19:34:59 +01:00
Linus Torvalds
d8dfad3876 Linux 3.11-rc7 2013-08-25 17:43:22 -07:00
Linus Torvalds
c1c008cc55 Staging fixes for 3.11-rc7
Here are two tiny staging tree fixes (well, one is for an iio driver,
 but those updates come through the staging tree due to dependancies.)
 
 One fixes a problem with an IIO driver, and the other fixes a bug in the
 comedi driver core.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging fixes from Greg KH:
 "Here are two tiny staging tree fixes (well, one is for an iio driver,
  but those updates come through the staging tree due to dependancies)

  One fixes a problem with an IIO driver, and the other fixes a bug in
  the comedi driver core"

* tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: bug-fix NULL pointer dereference on failed attach
  iio: adjd_s311: Fix non-scan mode data read
2013-08-25 12:44:15 -07:00
Linus Torvalds
5e25e4f304 USB fixes for 3.11-rc7
Here are two USB fixes for 3.11-rc7
 
 One fixes a reported regression in the OHCI driver, and the other fixes
 a reported build breakage in the USB phy drivers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are two USB fixes for 3.11-rc7

  One fixes a reported regression in the OHCI driver, and the other
  fixes a reported build breakage in the USB phy drivers"

* tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: phy: fix build breakage
  USB: OHCI: add missing PCI PM callbacks to ohci-pci.c
2013-08-25 12:43:44 -07:00
Linus Torvalds
1b4757ee6f Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "This round of fixes is smaller than previous: a couple more updates
  for the security fixes, and a one-liner kexec fix"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7816/1: CONFIG_KUSER_HELPERS: fix help text
  ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
  ARM: 7819/1: fiq: Cast the first argument of flush_icache_range()
2013-08-25 12:41:37 -07:00
Linus Torvalds
4d4323ea2d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "Assorted fixes from the last week or so"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: collect_mounts() should return an ERR_PTR
  bfs: iget_locked() doesn't return an ERR_PTR
  efs: iget_locked() doesn't return an ERR_PTR()
  proc: kill the extra proc_readfd_common()->dir_emit_dots()
  cope with potentially long ->d_dname() output for shmem/hugetlb
2013-08-25 12:25:38 -07:00
Linus Torvalds
8495e9c4a9 ACPI fix for 3.11-rc7
- Revert a change in the ACPI video driver that caused the ACPI
   backlight initialization to be carried out even if acpi_backlight=vendor
   is passed in the kernel command line which turns out to break things
   at least on one system.
 
 /
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Merge tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "I really hoped that it wouldn't be necessary to change anything in
  ACPI at this point, but it turns out that we need to revert one more
  ACPI video commit causing trouble.

  This reverts a change in the ACPI video driver that caused the ACPI
  backlight initialization to be carried out even if acpi_backlight=vendor
  is passed in the kernel command line which turns out to break things
  at least on one system"

* tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI / video: Always call acpi_video_init_brightness() on init"
2013-08-24 11:34:33 -07:00
Linus Torvalds
5befb98b30 SCSI fixes on 20130824
This is a set of small bug fixes for lpfc and zfcp and a fix for a fairly
 nasty bug in sg where a process which cancels I/O completes in a kernel thread
 which would then try to write back to the now gone userspace and end up
 writing to a random kernel address instead.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of small bug fixes for lpfc and zfcp and a fix for a
  fairly nasty bug in sg where a process which cancels I/O completes in
  a kernel thread which would then try to write back to the now gone
  userspace and end up writing to a random kernel address instead"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] zfcp: remove access control tables interface (keep sysfs files)
  [SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops
  [SCSI] zfcp: fix lock imbalance by reworking request queue locking
  [SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal
  [SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on
2013-08-24 11:33:21 -07:00
Joern Rennecke
b0f55f2a1a ARC: [lib] strchr breakage in Big-endian configuration
For a search buffer, 2 byte aligned, strchr() was returning pointer
outside of buffer (buf - 1)

------------->8----------------
    // Input buffer (default 4 byte aigned)
    char *buffer = "1AA_";

    // actual search start (to mimick 2 byte alignment)
    char *current_line = &(buffer[2]);

    // Character to search for
    char c = 'A';

    char *c_pos = strchr(current_line, c);

    printf("%s\n", c_pos) --> 'AA_' as oppose to 'A_'
------------->8----------------

Reported-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Debugged-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: <stable@vger.kernel.org> # [3.9 and 3.10]
Cc: Noam Camus <noamc@ezchip.com>
Signed-off-by: Joern Rennecke  <joern.rennecke@embecosm.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-24 11:24:53 -07:00
Dan Carpenter
52e220d357 VFS: collect_mounts() should return an ERR_PTR
This should actually be returning an ERR_PTR on error instead of NULL.
That was how it was designed and all the callers expect it.

[AV: actually, that's what "VFS: Make clone_mnt()/copy_tree()/collect_mounts()
return errors" missed - originally collect_mounts() was expected to return
NULL on failure]

Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-08-24 12:10:29 -04:00
Dan Carpenter
821ff77c6c bfs: iget_locked() doesn't return an ERR_PTR
iget_locked() returns a NULL on error, it doesn't return an ERR_PTR.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-08-24 12:10:22 -04:00
Dan Carpenter
136eefa48d efs: iget_locked() doesn't return an ERR_PTR()
The iget_locked() function returns NULL on error and never an ERR_PTR.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-08-24 12:10:22 -04:00
Oleg Nesterov
a5a1955e0c proc: kill the extra proc_readfd_common()->dir_emit_dots()
proc_readfd_common() does dir_emit_dots() twice in a row,
we need to do this only once.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-08-24 12:10:22 -04:00
Al Viro
118b230225 cope with potentially long ->d_dname() output for shmem/hugetlb
dynamic_dname() is both too much and too little for those - the
output may be well in excess of 64 bytes dynamic_dname() assumes
to be enough (thanks to ashmem feeding really long names to
shmem_file_setup()) and vsnprintf() is an overkill for those
guys.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-08-24 12:10:17 -04:00
Linus Torvalds
89b53e50bd Merge branch 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "This contains three commits all of which are updates for specific
  devices which aren't too widespread.  Pretty limited scope and nothing
  too interesting or dangerous"

* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  sata_fsl: save irqs while coalescing
  libata: apply behavioral quirks to sil3826 PMP
  sata, highbank: fix ordering of SGPIO signals
2013-08-23 10:59:42 -07:00
Linus Torvalds
e2982a04ed Merge branch 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
 "A late fix for cgroup.

  This fixes a behavior regression visible to userland which was created
  by a commit merged during -rc1.  While the behavior change isn't too
  likely to be noticeable, the fix is relatively low risk and we'll need
  to backport it through -stable anyway if the bug gets released"

* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: fix a regression in validating config change
2013-08-23 10:58:50 -07:00
Linus Torvalds
f07823e163 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Ben was on holidays for a week so a few nouveau regression fixes
  backed up, but they all seem necessary.

  Otherwise one i915 and one gma500 fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  gma500: Fix SDVO turning off randomly
  drm/nv04/disp: fix framebuffer pin refcounting
  drm/nouveau/mc: fix race condition between constructor and request_irq()
  drm/nouveau: fix reclocking on nv40
  drm/nouveau/ltcg: fix allocating memory as free
  drm/nouveau/ltcg: fix ltcg memory initialization after suspend
  drm/nouveau/fb: fix null derefs in nv49 and nv4e init
  drm/i915: Invalidate TLBs for the rings after a reset
2013-08-23 10:46:28 -07:00
Anatolij Gustschin
52d5b9aba1 usb: phy: fix build breakage
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
  ...
  drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1

This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
  ...
  In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
  drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1

Fix both issues.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-23 10:41:46 -07:00
Alan Stern
9a11899c5e USB: OHCI: add missing PCI PM callbacks to ohci-pci.c
Commit c1117afb85 (USB: OHCI: make ohci-pci a separate driver)
neglected to preserve the entries for the pci_suspend and pci_resume
driver callbacks.  As a result, OHCI controllers don't work properly
during suspend and after hibernation.

This patch adds the missing callbacks to the driver.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Steve Cotton <steve@s.cotton.clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-23 10:41:46 -07:00
Ian Abbott
3955dfa821 staging: comedi: bug-fix NULL pointer dereference on failed attach
Commit dcd7b8bd63 ("staging: comedi: put
module _after_ detach" by myself) reversed a couple of calls in
`comedi_device_attach()` when recovering from an error returned by the
low-level driver's 'attach' handler.  Unfortunately, that introduced a
NULL pointer dereference bug as `dev->driver` is NULL after the call to
`comedi_device_detach()`.   We still have a pointer to the low-level
comedi driver structure in the `driv` variable, so use that instead.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-23 10:31:47 -07:00
Linus Torvalds
41a00f7950 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge networking fixes from David Miller:

 1) Revert Johannes Berg's genetlink locking fix, because it causes
    regressions.

    Johannes and Pravin Shelar are working on fixing things properly.

 2) Do not drop ipv6 ICMP messages without a redirected header option,
    they are legal.  From Duan Jiong.

 3) Missing error return propagation in probing of via-ircc driver.
    From Alexey Khoroshilov.

 4) Do not clear out broadcast/multicast/unicast/WOL bits in r8169 when
    initializing, from Peter Wu.

 5) realtek phy driver programs wrong interrupt status bit, from
    Giuseppe CAVALLARO.

 6) Fix statistics regression in AF_PACKET code, from Willem de Bruijn.

 7) Bridge code uses wrong bitmap length, from Toshiaki Makita.

 8) SFC driver uses wrong indexes to look up MAC filters, from Ben
    Hutchings.

 9) Don't pass stack buffers into usb control operations in hso driver,
    from Daniel Gimpelevich.

10) Multiple ipv6 fragmentation headers in one packet is illegal and
    such packets should be dropped, from Hannes Frederic Sowa.

11) When TCP sockets are "repaired" as part of checkpoint/restart, the
    timestamp field of SKBs need to be refreshed otherwise RTOs can be
    wildly off.  From Andrey Vagin.

12) Fix memcpy args (uses 'address of pointer' instead of 'pointer') in
    hostp driver.  From Dan Carpenter.

13) nl80211hdr_put() doesn't return an ERR_PTR, but some code believes
    it does.  From Dan Carpenter.

14) Fix regression in wireless SME disconnects, from Johannes Berg.

15) Don't use a stack buffer for DMA in zd1201 USB wireless driver, from
    Jussi Kivilinna.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
  ipv4: expose IPV4_DEVCONF
  ipv6: handle Redirect ICMP Message with no Redirected Header option
  be2net: fix disabling TX in be_close()
  Revert "genetlink: fix family dump race"
  hso: Fix stack corruption on some architectures
  hso: Earlier catch of error condition
  sfc: Fix lookup of default RX MAC filters when steered using ethtool
  bridge: Use the correct bit length for bitmap functions in the VLAN code
  packet: restore packet statistics tp_packets to include drops
  net: phy: rtl8211: fix interrupt on status link change
  r8169: remember WOL preferences on driver load
  via-ircc: don't return zero if via_ircc_open() failed
  macvtap: Ignore tap features when VNET_HDR is off
  macvtap: Correctly set tap features when IFF_VNET_HDR is disabled.
  macvtap: simplify usage of tap_features
  tcp: set timestamps for restored skb-s
  bnx2x: set VF DMAE when first function has 0 supported VFs
  bnx2x: Protect against VFs' ndos when SR-IOV is disabled
  bnx2x: prevent VF benign attentions
  bnx2x: Consider DCBX remote error
  ...
2013-08-23 09:54:21 -07:00
Linus Torvalds
3db0d4defc Merge branch 'akpm' (patches from Andrew Morton)
Merge fixes from Andrew Morton:
 "A few fixes.  One is a licensing change and I don't do licensing, so
  please eyeball that one"

Licensing eye-balled.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  lib/lz4: correct the LZ4 license
  memcg: get rid of swapaccount leftovers
  nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection
  nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error
  drivers/platform/olpc/olpc-ec.c: initialise earlier
2013-08-23 09:52:32 -07:00
Richard Laager
ee8a99bdb4 lib/lz4: correct the LZ4 license
The LZ4 code is listed as using the "BSD 2-Clause License".

Signed-off-by: Richard Laager <rlaager@wiktel.com>
Acked-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: Chanho Min <chanho.min@lge.com>
Cc: Richard Yao <ryao@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ The 2-clause BSD can be just converted into GPL, but that's rude and
  pointless, so don't do it   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-23 09:51:22 -07:00
Michal Hocko
07555ac144 memcg: get rid of swapaccount leftovers
The swapaccount kernel parameter without any values has been removed by
commit a2c8990aed ("memsw: remove noswapaccount kernel parameter") but
it seems that we didn't get rid of all the left overs.

Make sure that menuconfig help text and kernel-parameters.txt are clear
about value for the paramter and remove the stalled comment which is not
very much useful on its own.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Gergely Risko <gergely@risko.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-23 09:51:22 -07:00
Vyacheslav Dubeyko
4bf93b50fd nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection
Fix the issue with improper counting number of flying bio requests for
BIO_EOPNOTSUPP error detection case.

The sb_nbio must be incremented exactly the same number of times as
complete() function was called (or will be called) because
nilfs_segbuf_wait() will call wail_for_completion() for the number of
times set to sb_nbio:

  do {
      wait_for_completion(&segbuf->sb_bio_event);
  } while (--segbuf->sb_nbio > 0);

Two functions complete() and wait_for_completion() must be called the
same number of times for the same sb_bio_event.  Otherwise,
wait_for_completion() will hang or leak.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-23 09:51:22 -07:00
Vyacheslav Dubeyko
2df37a19c6 nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error
Remove double call of bio_put() in nilfs_end_bio_write() for the case of
BIO_EOPNOTSUPP error detection.  The issue was found by Dan Carpenter
and he suggests first version of the fix too.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-23 09:51:22 -07:00
Daniel Drake
93dbc1b3b5 drivers/platform/olpc/olpc-ec.c: initialise earlier
Being a low-level component, various drivers (e.g.  olpc-battery) assume
that it is ok to communicate with the OLPC Embedded Controller during
probe.  Therefore the OLPC EC driver must be initialised before other
drivers try to use it.  This was the case until it was recently moved
out of arch/x86 and restructured around commits ac2504151f ("Platform:
OLPC: turn EC driver into a platform_driver") and 85f90cf6ca ("x86:
OLPC: switch over to using new EC driver on x86").

Use arch_initcall so that olpc-ec is readied earlier, matching the
previous behaviour.

Fixes a regression introduced in Linux-3.6 where various drivers such as
olpc-battery and olpc-xo1-sci failed to load due to an inability to
communicate with the EC.  The user-visible effect was a lack of battery
monitoring, missing ebook/lid switch input devices, etc.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: Andres Salomon <dilinger@queued.net>
Cc: Paul Fox <pgf@laptop.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-23 09:51:22 -07:00
Dave Airlie
4dd17ee957 Merge tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just one patch that soaked for quite a bit to fix a resume issue,
resulting in gpu hangs (or worse) due to tlb containing garbage.

* tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: Invalidate TLBs for the rings after a reset
2013-08-23 18:52:37 +10:00
stephen hemminger
4a5a8aa6c9 ipv4: expose IPV4_DEVCONF
IP sends device configuration (see inet_fill_link_af) as an array
in the netlink information, but the indices in that array are not
exposed to userspace through any current santized header file.

It was available back in 2.6.32 (in /usr/include/linux/sysctl.h)
but was broken by:
  commit 02291680ff
  Author: Eric W. Biederman <ebiederm@xmission.com>
  Date:   Sun Feb 14 03:25:51 2010 +0000

    net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers

Eric was solving the sysctl problem but then the indices were re-exposed
by a later addition of devconf support for IPV4

  commit 9f0f7272ac
  Author: Thomas Graf <tgraf@infradead.org>
  Date:   Tue Nov 16 04:32:48 2010 +0000

    ipv4: AF_INET link address family

Putting them in /usr/include/linux/ip.h seemed the logical match
for the DEVCONF_ definitions for IPV6 in /usr/include/linux/ip6.h

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-22 20:30:15 -07:00
Duan Jiong
c92a59eca8 ipv6: handle Redirect ICMP Message with no Redirected Header option
rfc 4861 says the Redirected Header option is optional, so
the kernel should not drop the Redirect Message that has no
Redirected Header option. In this patch, the function
ip6_redirect_no_header() is introduced to deal with that
condition.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
2013-08-22 20:08:21 -07:00
Sathya Perla
6e1f99757a be2net: fix disabling TX in be_close()
commit fba875591 ("disable TX in be_close()") disabled TX in be_close()
to protect be_xmit() from touching freed up queues in the AER recovery
flow.  But, TX must be disabled *before* cleaning up TX completions in
the close() path, not after. This allows be_tx_compl_clean() to free up
all TX-req skbs that were notified to the HW.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-22 19:58:23 -07:00
Rafael J. Wysocki
168cf0eca4 Revert "ACPI / video: Always call acpi_video_init_brightness() on init"
Revert commit c04c697 (ACPI / video: Always call acpi_video_init_brightness()
on init), because it breaks eDP backlight at 1920x1080 on Acer Aspire S3
for Trevor Bortins.

References: https://bugs.freedesktop.org/show_bug.cgi?id=68355
Reported-and-bisected-by: Trevor Bortins <enabfluw@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-08-22 23:39:02 +02:00
David S. Miller
2266c68f36 Merge branch 'sfc-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc
Merge in a fix for RX MAC address filter programming bug in the sfc
driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-22 14:34:13 -07:00
Johannes Berg
9d47b38056 Revert "genetlink: fix family dump race"
This reverts commit 58ad436fcf.

It turns out that the change introduced a potential deadlock
by causing a locking dependency with netlink's cb_mutex. I
can't seem to find a way to resolve this without doing major
changes to the locking, so revert this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-22 13:24:02 -07:00
Linus Torvalds
6a7492a4b2 Merge branch 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform driver fixes from Matthew Garrett:
 "Three trivial fixes - the first reverts a patch that's broken some
  other devices (again - I'm trying to figure out a clean way to
  implement this), the other two fix minor issues in the sony-laptop
  driver"

* 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86:
  Revert "hp-wmi: Enable hotkeys on some systems"
  sony-laptop: Fix reporting of gfx_switch_status
  sony-laptop: return a negative error code in sonypi_compat_init()
2013-08-22 13:04:11 -07:00
Linus Torvalds
1f8b76656b ARM: SoC fixes for 3.11-rc
A handful of fixes for 3.11 are still trickling in. These are:
 - A couple of fixes for older OMAP platforms
 - Another few fixes for at91 (lateish due to European summer vacations)
 - A late-found problem with USB on Tegra, fix is to keep VBUS regulator
   on at all times
 - One fix for Exynos 5440 dealing with CPU detection
 - One MAINTAINERS update
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A handful of fixes for 3.11 are still trickling in.  These are:
   - A couple of fixes for older OMAP platforms
   - Another few fixes for at91 (lateish due to European summer
     vacations)
   - A late-found problem with USB on Tegra, fix is to keep VBUS
     regulator on at all times
   - One fix for Exynos 5440 dealing with CPU detection
   - One MAINTAINERS update"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: tegra: always enable USB VBUS regulators
  ARM: davinci: nand: specify ecc strength
  ARM: OMAP: rx51: change musb mode to OTG
  ARM: OMAP2: fix musb usage for n8x0
  MAINTAINERS: Update email address for Benoit Cousson
  ARM: at91/DT: fix at91sam9n12ek memory node
  ARM: at91: add missing uart clocks DT entries
  ARM: SAMSUNG: fix to support for missing cpu specific map_io
  ARM: at91/DT: at91sam9x5ek: fix USB host property to enable port C
2013-08-22 10:44:44 -07:00
Linus Torvalds
8351fcfe4f For DT unflattening, add missing memory initialization. This is needed
for arches like PPC that use memblock_alloc. This appears to have been
 an issue for some time, but is a somewhat limited usecase of OF_DYNAMIC.
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Merge tag 'devicetree-fixes-for-3.11' of git://sources.calxeda.com/kernel/linux

Pull device tree fix from Rob Herring:
 "For DT unflattening, add missing memory initialization.

  This is needed for arches like PPC that use memblock_alloc.  This
  appears to have been an issue for some time, but is a somewhat limited
  usecase of OF_DYNAMIC"

* tag 'devicetree-fixes-for-3.11' of git://sources.calxeda.com/kernel/linux:
  of: fdt: fix memory initialization for expanded DT
2013-08-22 10:43:47 -07:00
Linus Torvalds
ee7075d45f A patch to fix dm-cache-policy-mq's remove_mapping() conflict with sparc32.
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Merge tag 'dm-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fix from Mike Snitzer:
 "A patch to fix dm-cache-policy-mq's remove_mapping() conflict with
  sparc32"

* tag 'dm-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: avoid conflicting remove_mapping() in mq policy
2013-08-22 10:43:00 -07:00
Radu Caragea
41aacc1eea x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member
This is the updated version of df54d6fa54 ("x86 get_unmapped_area():
use proper mmap base for bottom-up direction") that only randomizes the
mmap base address once.

Signed-off-by: Radu Caragea <sinaelgl@gmail.com>
Reported-and-tested-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-22 10:19:35 -07:00
Linus Torvalds
5ea80f76a5 Revert "x86 get_unmapped_area(): use proper mmap base for bottom-up direction"
This reverts commit df54d6fa54.

The commit isn't necessarily wrong, but because it recalculates the
random mmap_base every time, it seems to confuse user memory allocators
that expect contiguous mmap allocations even when the mmap address isn't
specified.

In particular, the MATLAB Java runtime seems to be unhappy. See

  https://bugzilla.kernel.org/show_bug.cgi?id=60774

So we'll want to apply the random offset only once, and Radu has a patch
for that.  Revert this older commit in order to apply the other one.

Reported-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Radu Caragea <sinaelgl@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-22 10:18:44 -07:00
Martin Peschke
b5dc3c4800 [SCSI] zfcp: remove access control tables interface (keep sysfs files)
By popular demand, this patch brings back a couple of sysfs attributes
removed by commit 663e0890e3
"[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>
2013-08-22 09:26:51 -07:00
Martin Peschke
924dd584b1 [SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops
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
b62a8d9b45
"[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>
2013-08-22 09:24:02 -07:00
Martin Peschke
d79ff14262 [SCSI] zfcp: fix lock imbalance by reworking request queue locking
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 c2af7545aa
"[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>
2013-08-22 08:53:30 -07:00