Commit Graph

348227 Commits

Author SHA1 Message Date
Linus Torvalds
9eb127cc04 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Really fix tuntap SKB use after free bug, from Eric Dumazet.

 2) Adjust SKB data pointer to point past the transport header before
    calling icmpv6_notify() so that the headers are in the state which
    that function expects.  From Duan Jiong.

 3) Fix ambiguities in the new tuntap multi-queue APIs.  From Jason
    Wang.

 4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov.

 5) Don't destroy mutex after freeing up device private in mac802154,
    fix also from Konstantin Khlebnikov.

 6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch.

 7) SCTP HMAC kconfig rework, from Neil Horman.

 8) Fix SCTP jprobes function signature, otherwise things explode, from
    Daniel Borkmann.

 9) Fix typo in ipv6-offload Makefile variable reference, from Simon
    Arlott.

10) Don't fail USBNET open just because remote wakeup isn't supported,
    from Oliver Neukum.

11) be2net driver bug fixes from Sathya Perla.

12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David
    Woodhouse.

13) Fix MTU changing regression in 8139cp driver, from John Greene.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
  solos-pci: ensure all TX packets are aligned to 4 bytes
  solos-pci: add firmware upgrade support for new models
  solos-pci: remove superfluous debug output
  solos-pci: add GPIO support for newer versions on Geos board
  8139cp: Prevent dev_close/cp_interrupt race on MTU change
  net: qmi_wwan: add ZTE MF880
  drivers/net: Use of_match_ptr() macro in smsc911x.c
  drivers/net: Use of_match_ptr() macro in smc91x.c
  ipv6: addrconf.c: remove unnecessary "if"
  bridge: Correctly encode addresses when dumping mdb entries
  bridge: Do not unregister all PF_BRIDGE rtnl operations
  use generic usbnet_manage_power()
  usbnet: generic manage_power()
  usbnet: handle PM failure gracefully
  ksz884x: fix receive polling race condition
  qlcnic: update driver version
  qlcnic: fix unused variable warnings
  net: fec: forbid FEC_PTP on SoCs that do not support
  be2net: fix wrong frag_idx reported by RX CQ
  be2net: fix be_close() to ensure all events are ack'ed
  ...
2012-12-19 20:29:15 -08:00
Linus Torvalds
e32795503d Device tree v3.8 bug fix branch. Fixes an undefined struct device build
error and a missing symbol export.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ0l2KAAoJEEFnBt12D9kB+tUQAKMjdtBO4MV9LaSham/yj+bf
 f7aGoslEFHloXOvP0/Hg8+bP+Z0El5p7ncCZIROtN2pfhYad1CjbZHhwhJeeRMuJ
 vQT+uy9BZ09pWoSvkLCWdUQyEGYWMxaOQtDMVHEdURU7nRBOPlntrCijoS68pcK8
 Tw9XsX69Qurk/Z8q8DXf8hmNF49Cyv8ax1rywqjTTT0yzR+UzQGldXUDqEg9bg/t
 Qcf03xwUSojdEBQrLo8aaFm32EUguqB02WqS1KMQBaz6FnbqmvVdVyIgVea7kgNi
 mws1um6/3B/yDYB3ESKNXeZiF1bW03ccdITOeRe+mBDEz0JjnZQmQb30xaT6kjT/
 z4VV1DVFAKFQ4M0HlKmv7xvcBcNdzuhrhiFteGNqDkU+zGwgl4GkiSP/c6l0CRVt
 Ij8jHM+YtLmeI1ajx2V9OhM4xzK1Upo6+zi5zgGxLqflvBnFysBVuLjV8/KdeJ6Z
 FW5J0iOMbIdRKdBZugj+c47qMuBjXx+BZwUxoaAbgHnFLctkF3cWhc3sLpqNi6pe
 6F8GkfEIW8nc6RYLb+Rh4e29mZgAMub+GS3bqKA0bcpOjgm6zwNV27ws7lLxwz2u
 d5Xf6uB2nfZGSZJtRa8mvqwEFkMoFPwaAD3XX2DmpSPZ0jTX5X1bRMa4u3UA7uJF
 VIdMKi+ZzuVhLpaMtnXc
 =srgY
 -----END PGP SIGNATURE-----
mergetag object bc1008cf7d
 type commit
 tag gpio-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1355962627 +0000
 
 GPIO device driver bug fixes:
 - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
 - gpio/ich: Add missing spinlock init
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ0lmWAAoJEEFnBt12D9kBhxEP/0RQ87g52xXFxYpfIRRw6YIY
 YlXR0noPEJqYnOUGHI0pi+P6mFDvv95etT3khEsuwVkSbb0c0fEl8m6w8O05aTd9
 DHdQ4ilvUE77+xO2uZsRN6VxBgnApaj8qMdLWi09yFnSm43wegWTi38IpnY2W4PE
 /qgTWT+pBraW+l4TQ/dA4hvhsTorH1McnbaNWQG1oNHbrnQ4Q43UII8qR02exz6Y
 CTgo5qpgvzbz334VQ/VYPgd2NOE1wZ6BihMZr8wNVv25Ip1tWhEh4BbCjpMmGBYC
 FnHfmKB3zeDdHbsnV2TZc2vC48qnMblGSkMjKsKZn0IOfH2YSym94L0VaXZhCLkw
 hjtZxrDnbkHzpkLc7inc8IxbTG1wyhtDQhIf9HBzO33QPtdXw2v6GVtLJ0Ca9ikB
 1T3XJZPZW+JwaEUdsw4UP7ZkJ7cwRG+fxB3iN57QDKj6Hjy+i/hA3GOjbF1VAOsb
 xTrLcfnYvQ81BXdMP2rzPo2c/XdwroW6SNNxYq8xkzlVZuRT0kZSObfGSM4zFxKp
 idfxwHz6ctXB1oni3XBaHmuyRXMZ9zERuyoNARPIJVw0ylSb93eq7dx+j02JOBtc
 RtrBb1oVtOLiVdn6mIDA4LSELdmcbZdXHW4k84CqyNPWSRG4Sbhx3539r1m90vHw
 EBnI5XpggxPt/U9qqpxH
 =JGvn
 -----END PGP SIGNATURE-----
mergetag object d3601e56cf
 type commit
 tag spi-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1355962904 +0000
 
 SPI device driver bug fixes branch for the v3.8 merge window. Most of
 this is bug fixes to the core code and the sh-hspi and s3c64xx device
 drivers.
 
 There is also a patch here to add DT support to the Atmel driver. This
 one should have been in the first round, but I missed it. It's a low
 risk change contained within a single driver and the Atmel maintainer
 has requested it.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ0lxNAAoJEEFnBt12D9kBCTMP/0WvS/7iiilM00b5pmclGkRc
 Ct3832KnZXn5dDYoSsP1AS2PRJAKbrMzvKMZu+ggjOAlwza87rKJJpt+KdU3r15b
 +KElnaStCC88ohxEOwQV4+CJpF3dS1AmrGMQvo9RK8hddpR1dH+FgMdmex104X/A
 Ysr0WgqQMY3iGVmnlPxU4EYlR1scnqOpaNADNbMY7ibuJ7LOYk1RYtqmX5yxdnJq
 yABILFa10qV9N/cqPBu2Cuhw8Xtp/u70dsQPkALG//pyZnFyhw6rMJ6bowOC2IHM
 p3R4IrVqJq1a3nL1IC1XX5/k21b0PBNxfOGqpeU4QoDK4/cIKeiPny1dtoI1UM+2
 mpTU99VvitZ0ywolenKnbPdU61UwZ6Sd+ptsZM0Y/wIMiXDWSBDTZqVJRAbINqFb
 JwwjtdaFDPgtIb6Yg1WuhLmhcOPfXFIRys7JmnS0VNQCpvvEIdFsR9l5jjMcmluR
 W7V69z9FZj5lf7WjNstbAxbCvrw1i65OD6Nr1UBAA17bqNU6a9BCWdNJGwLozraR
 k2ZomvfmIMhTP82z5by5UY39M9B5uGOHDxxXZOOvxzB/fxlYgLhiAGPfMY1FMrPH
 48gDqQtdOpakL1B/gVELpBLMoKjwEx9jJa/8tJb5wy8EgNSw06BDSN69OclLgmV/
 uVnSZWrp62odDLz0qjSR
 =trRO
 -----END PGP SIGNATURE-----

Merge tags 'dt-for-linus', 'gpio-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull devicetree, gpio and spi bugfixes from Grant Likely:
 "Device tree v3.8 bug fix:
   - Fixes an undefined struct device build error and a missing symbol
     export.

  GPIO device driver bug fixes:
   - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
   - gpio/ich: Add missing spinlock init

  SPI device driver bug fixes:
   - Most of this is bug fixes to the core code and the sh-hspi and
     s3c64xx device drivers.

   - There is also a patch here to add DT support to the Atmel driver.
     This one should have been in the first round, but I missed it.
     It's a low risk change contained within a single driver and the
     Atmel maintainer has requested it."

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
  of: Fix export of of_find_matching_node_and_match()

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
  gpio/ich: Add missing spinlock init

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/sh-hspi: fix return value check in hspi_probe().
  spi: fix tegra SPI binding examples
  spi/atmel: add DT support
  of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes.
  spi: Change FIFO flush operation and spi channel off
  spi: Keep chipselect assertion during one message
2012-12-19 20:26:16 -08:00
Linus Torvalds
dcd6a97d1d Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm bugfix from Dave Airlie:
 "Just a single urgent regression fix, seeing a few wierd behaviours I'd
  like not to persist."

* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
2012-12-19 20:24:25 -08:00
Linus Torvalds
7005cd3970 A few /dev/random improvements for the v3.8 merge window.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABCAAGBQJQz+SFAAoJENNvdpvBGATww0QP+gLGPbydQbW25SF2SUjcBdAA
 tGLTFmEIAATxfQihsuMsBjnNIuc9gLbQMTvEd0flhkxkc6wFAcaJA5Q6SuEv64jV
 frz+T36v1hLP3xCq2b0z93yHAadRq1twALgGzCjSQh9Od73kY4DOOqj/1DZO9CvA
 cPbP7FIqlVhHLYtfLv7m8OMVkTjgyKvDhWcKZyaN5ticVzZImSbOMHXQ7SX9jnpc
 ktz+vHc48Lnix8NGmodZF81QEtLWheGhKRwOiifpBq7BKmFyiUJNEDOaQHofcgCb
 LRjNvsGkhKo36xf/T84pXPj17fmhOHKChAfOABarGY8SzNRbgD7DcsEqT0YXO71r
 MV17L9kxS34ULYPdbXs8QRO9q0v0vS2YQletT/oykFdb895cp8oX4rFHu4TFgoPV
 S6oDR0UD7T/OsJ9nsvqjxxH2UJeCTrYMi5JD71ywsY805WOEn4gUc3TLsfscqmte
 gMVzxQP46JuNBVEsZVKf4oIeeRSMH/Ja8pHLPjOLvQ4nszqnLl+WaSqJQWSSfCv8
 5hJfIpX+CX+mJuEiskiHatbam8anZYD5m/TXaizjAdG80YiAgaMBA7fh7oK/mgTq
 1OjKAnEQhOAlDCTCp9szk7ye1f3ivdCy0Hr6MvvrGTdQEY5b3Y7lt74gEQmhjTrv
 Fhb2FX7lLcDv7NGvyBqQ
 =tTqL
 -----END PGP SIGNATURE-----

Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random updates from Ted Ts'o:
 "A few /dev/random improvements for the v3.8 merge window."

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: Mix cputime from each thread that exits to the pool
  random: prime last_data value per fips requirements
  random: fix debug format strings
  random: make it possible to enable debugging without rebuild
2012-12-19 20:23:37 -08:00
David S. Miller
62ba63dc89 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in CAMELLIA code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:44:31 -08:00
David S. Miller
b3a3794707 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in DES code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:43:38 -08:00
David S. Miller
ce6889515d sparc64: Fix ECB looping constructs in AES code.
Things works better when you increment the source buffer pointer
properly.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:30:07 -08:00
David S. Miller
b35d282ef7 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:22:03 -08:00
David S. Miller
a8d97cef21 sparc64: Fix AES ctr mode block size.
Like the generic versions, we need to support a block size
of '1' for CTR mode AES.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:20:23 -08:00
David S. Miller
9f28ffc03e sparc64: Fix unrolled AES 256-bit key loops.
The basic scheme of the block mode assembler is that we start by
enabling the FPU, loading the key into the floating point registers,
then iterate calling the encrypt/decrypt routine for each block.

For the 256-bit key cases, we run short on registers in the unrolled
loops.

So the {ENCRYPT,DECRYPT}_256_2() macros reload the key registers that
get clobbered.

The unrolled macros, {ENCRYPT,DECRYPT}_256(), are not mindful of this.

So if we have a mix of multi-block and single-block calls, the
single-block unrolled 256-bit encrypt/decrypt can run with some
of the key registers clobbered.

Handle this by always explicitly loading those registers before using
the non-unrolled 256-bit macro.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:19:11 -08:00
Al Viro
50ececcfa7 alpha: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:42 -05:00
Al Viro
c40702c49f new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those
note that they are relying on access_ok() already checked by caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:41 -05:00
Al Viro
9026843952 generic compat_sys_sigaltstack()
Again, conditional on CONFIG_GENERIC_SIGALTSTACK

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:41 -05:00
Al Viro
6bf9adfc90 introduce generic sys_sigaltstack(), switch x86 and um to it
Conditional on CONFIG_GENERIC_SIGALTSTACK; architectures that do not
select it are completely unaffected

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:40 -05:00
Al Viro
9b064fc3f9 new helper: compat_user_stack_pointer()
Compat counterpart of current_user_stack_pointer(); for most of the biarch
architectures those two are identical, but e.g. arm64 and arm use different
registers for stack pointer...

Note that amd64 variants of current_user_stack_pointer/compat_user_stack_pointer
do *not* rely on pt_regs having been through FIXUP_TOP_OF_STACK.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:40 -05:00
Al Viro
5c49574ffd new helper: restore_altstack()
to be used by rt_sigreturn instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:40 -05:00
Al Viro
031b656698 unify SS_ONSTACK/SS_DISABLE definitions
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:39 -05:00
Al Viro
1ca97bb541 new helper: current_user_stack_pointer()
Cross-architecture equivalent of rdusp(); default is
user_stack_pointer(current_pt_regs()) - that works for almost all
platforms that have usp saved in pt_regs.  The only exception from
that is ia64 - we want memory stack, not the backing store for
register one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:39 -05:00
Al Viro
5208ba24e7 missing user_stack_pointer() instances
for the architectures that have usp in pt_regs and do not have
user_stack_pointer() already defined.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:39 -05:00
Al Viro
ae903caae2 Bury the conditionals from kernel_thread/kernel_execve series
All architectures have
	CONFIG_GENERIC_KERNEL_THREAD
	CONFIG_GENERIC_KERNEL_EXECVE
	__ARCH_WANT_SYS_EXECVE
None of them have __ARCH_WANT_KERNEL_EXECVE and there are only two callers
of kernel_execve() (which is a trivial wrapper for do_execve() now) left.
Kill the conditionals and make both callers use do_execve().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:07:38 -05:00
Al Viro
4683661388 COMPAT_SYSCALL_DEFINE: infrastructure
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-12-19 18:06:58 -05:00
David Woodhouse
152a2a8b5e solos-pci: ensure all TX packets are aligned to 4 bytes
The FPGA can't handled unaligned DMA (yet). So copy into an aligned buffer,
if skb->data isn't suitably aligned.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams
13af816469 solos-pci: add firmware upgrade support for new models
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams
7fbdadb5e9 solos-pci: remove superfluous debug output
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams
f9baad02e7 solos-pci: add GPIO support for newer versions on Geos board
dwmw2: Tidy up a little, simpler matching on which GPIO is being accessed,
       only register on newer boards, register under PCI device instead of
       duplicating them under each ATM device.

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Jerome Glisse
4613ca14b9 drm/radeon: add support for MEM_WRITE packet
To make it easier to debug some lockup from userspace add support
to MEM_WRITE packet.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-12-19 17:45:06 -05:00
Jerome Glisse
d3493574e2 drm/radeon: restore modeset late in GPU reset path
Modeset path seems to conflict sometimes with the memory management
leading to kernel deadlock. This move modesetting reset after GPU
acceleration reset.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2012-12-19 17:44:06 -05:00
Jerome Glisse
5f8f635edd drm/radeon: avoid deadlock in pm path when waiting for fence
radeon_fence_wait_empty_locked should not trigger GPU reset as no
place where it's call from would benefit from such thing and it
actually lead to a kernel deadlock in case the reset is triggered
from pm codepath. Instead force ring completion in place where it
makes sense or return early in others.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2012-12-19 17:44:05 -05:00
Jerome Glisse
76903b96ad drm/radeon: don't leave fence blocked process on failed GPU reset
Force all fence to signal if GPU reset failed so no process get stuck
on waiting fence.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2012-12-19 17:44:05 -05:00
John Greene
83c34fd00d 8139cp: Prevent dev_close/cp_interrupt race on MTU change
commit:  cb64edb6b8 upstream

Above commit may introduce a race between cp_interrupt and dev_close
/ change MTU / dev_open up state. Changes cp_interrupt to tolerate
this.  Change spin_locking in cp_interrupt to avoid possible
but unobserved race.

Reported-by: "Francois Romieu" <romieu@fr.zoreil.com>

Tested on virtual hardware, Tx MTU size up to 4096, max tx payload
    was ping -s 4068 for MTU of 4096. No real hardware, need test
    assist.

Signed-off-by: "John Greene" <jogreene@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: "David Woodhouse" <David.Woodhouse@intel.com>
Tested-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:30:59 -08:00
Gregory CLEMENT
bc1008cf7d gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
When building without device tree support (for the mv78x00 SoCs for
example), the build failed because of_irq_count is undeclared. However
mvebu-gpio is not designed to build without device tree support. So
make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the
platform_device_id.

Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3,
DB-MV784MP-GP, Mirabox and OpenBlocks AX3.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-19 22:15:14 +00:00
Jean Delvare
d39a948fef gpio/ich: Add missing spinlock init
As reported by CONFIG_DEBUG_SPINLOCK=y.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-19 22:13:08 +00:00
Maarten Lankhorst
0953e76e91 drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
Fix regression introduced by 85b144f860
"drm/ttm: call ttm_bo_cleanup_refs with reservation and lru lock held, v3"

Slowpath ttm_bo_cleanup_refs_and_unlock accidentally tried to increase
refcount on &bo->sync_obj instead of bo->sync_obj.

The compiler didn't complain since sync_obj_ref takes a void pointer,
so it was still valid c.

This could result in lockups, memory corruptions, and warnings like
these when graphics card VRAM usage is high:

------------[ cut here ]------------
WARNING: at include/linux/kref.h:42 radeon_fence_ref+0x2c/0x40()
Hardware name: System Product Name
Pid: 157, comm: X Not tainted 3.7.0-rc7-00520-g85b144f-dirty #174
Call Trace:
[<ffffffff81058c84>] ? warn_slowpath_common+0x74/0xb0
[<ffffffff8129273c>] ? radeon_fence_ref+0x2c/0x40
[<ffffffff8125e95c>] ? ttm_bo_cleanup_refs_and_unlock+0x18c/0x2d0
[<ffffffff8125f17c>] ? ttm_mem_evict_first+0x1dc/0x2a0
[<ffffffff81264452>] ? ttm_bo_man_get_node+0x62/0xb0
[<ffffffff8125f4ce>] ? ttm_bo_mem_space+0x28e/0x340
[<ffffffff8125fb0c>] ? ttm_bo_move_buffer+0xfc/0x170
[<ffffffff810de172>] ? kmem_cache_alloc+0xb2/0xc0
[<ffffffff8125fc15>] ? ttm_bo_validate+0x95/0x110
[<ffffffff8125ff7c>] ? ttm_bo_init+0x2ec/0x3b0
[<ffffffff8129419a>] ? radeon_bo_create+0x18a/0x200
[<ffffffff81293e80>] ? radeon_bo_clear_va+0x40/0x40
[<ffffffff812a5342>] ? radeon_gem_object_create+0x92/0x160
[<ffffffff812a575c>] ? radeon_gem_create_ioctl+0x6c/0x150
[<ffffffff812a529f>] ? radeon_gem_object_free+0x2f/0x40
[<ffffffff81246b60>] ? drm_ioctl+0x420/0x4f0
[<ffffffff812a56f0>] ? radeon_gem_pwrite_ioctl+0x20/0x20
[<ffffffff810f53a4>] ? do_vfs_ioctl+0x2e4/0x4e0
[<ffffffff810e5588>] ? vfs_read+0x118/0x160
[<ffffffff810f55ec>] ? sys_ioctl+0x4c/0xa0
[<ffffffff810e5851>] ? sys_read+0x51/0xa0
[<ffffffff814b0612>] ? system_call_fastpath+0x16/0x1b

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-12-20 07:46:20 +10:00
Tomas Winkler
d692170037 watchdog: mei: avoid oops in watchdog unregister code path
With commit c7d3df3 "mei: use internal watchdog device registration
tracking" will crash the kernel on shutdown path on systems
where ME watchdog is not present.
Since the watchdog was never initialized in such case
the WDOG_UNREGISTERED bit is never set and the system
crashes on access to uninitialized variables down the path.

To solve the issue we query for NULL on watchdog driver driver_data
to check whether the device is registered. This is handled in the
driver and doesn't depend on watchdog core internals.

Cc: Borislav Petkov <bp@alien8.de>
Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Jerry Snitselaar <jerry.snitselaar@oracle.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:11 +01:00
Jason Gunthorpe
8c4c419ca3 watchdog: Orion: Fix possible null-deference in orion_wdt_probe
If the DT does not include a regs parameter then the null res
would be dereferenced.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:10 +01:00
Takahisa Tanaka
740fbddf5c watchdog: sp5100_tco: Add SB8x0 chipset support
The current sp5100_tco driver only supports SP5100/SB7x0 chipset, doesn't
support SB8x0 chipset, because current sp5100_tco driver doesn't know that the
offset address for watchdog timer was changed from SB8x0 chipset.

The offset address of SP5100 and SB7x0 chipsets are as follows, quote from the
AMD SB700/710/750 Register Reference Guide (Page 164) and the AMD SP5100
Register Reference Guide (Page 166).

  WatchDogTimerControl 69h
  WatchDogTimerBase0   6Ch
  WatchDogTimerBase1   6Dh
  WatchDogTimerBase2   6Eh
  WatchDogTimerBase3   6Fh

In contrast, the offset address of SB8x0 chipset is as follows, quote from
AMD SB800-Series Southbridges Register Reference Guide (Page 147).

  WatchDogTimerEn      48h
  WatchDogTimerConfig  4Ch

So, In the case of SB8x0 chipset, sp5100_tco reads meaningless MMIO
address (for example, 0xbafe00) from wrong offset address, and the following
message is logged.

   SP5100 TCO timer: mmio address 0xbafe00 already in use

With this patch, sp5100_tco driver supports SB8x0 chipset, and can avoid
iomem resource conflict. The processing of this patch is as follows.

 Step 1) Attempt to get the watchdog base address from indirect I/O (0xCD6
         and 0xCD7).
  - Go to the step 7 if obtained address hasn't conflicted with other
    resource. But, currently, the address (0xfec000f0) conflicts with the
    IOAPIC MMIO address, and the following message is logged.

       SP5100 TCO timer: mmio address 0xfec000f0 already in use

    0xfec000f0 is recommended by AMD BIOS Developer's Guide. So, go to the
    next step.

 Step 2) Attempt to get the SBResource_MMIO base address from AcpiMmioEN (for
         SB8x0,  PM_Reg:24h) or SBResource_MMIO (SP5100/SB7x0, PCI_Reg:9Ch)
         register.
  - Go to the step 7 if these register has enabled by BIOS, and obtained
    address hasn't conflicted with other resource.
  - If above condition isn't true, go to the next step.

 Step 3) Attempt to get the free MMIO address from allocate_resource().
  - Go to the step 7 if these register has enabled by BIOS, and obtained
    address hasn't conflicted with other resource.
  - Driver initialization has failed if obtained address has conflicted
    with other resource, and no 'force_addr' parameter is specified.

 Step 4) Use the specified address If 'force_addr' parameter is specified.
  - allocate_resource() function may fail, when the PCI bridge device occupies
    iomem resource from 0xf0000000 to 0xffffffff. To handle such a case,
    I added 'force_addr' parameter to sp5100_tco driver. With 'force_addr'
    parameter, sp5100_tco driver directly can assign MMIO address for watchdog
    timer from free iomem region. Note that It's dangerous to specify wrong
    address in the 'force_addr' parameter.

      Example of force_addr parameter use
        # cat /proc/iomem
        ...snip...
        fec00000-fec003ff : IOAPIC 0
                                      <--- free MMIO region
        fec10000-fec1001f : pnp 00:0b
        fec20000-fec203ff : IOAPIC 1
        ...snip...
        # cat /etc/modprobe.d/sp5100_tco.conf
        options sp5100_tco force_addr=0xfec00800
        # modprobe sp5100_tco
        # cat /proc/iomem
        ...snip...
        fec00000-fec003ff : IOAPIC 0
        fec00800-fec00807 : SP5100 TCO  <--- watchdog timer MMIO address
        fec10000-fec1001f : pnp 00:0b
        fec20000-fec203ff : IOAPIC 1
        ...snip...
        #

  - Driver initialization has failed if specified address has conflicted
    with other resource.

 Step 5) Disable the watchdog timer
  - To rewrite the watchdog timer register of the chipset, absolutely
    guarantee that the watchdog timer is disabled.

 Step 6) Re-program the watchdog timer MMIO address to chipset.
  - Re-program the obtained MMIO address in Step 3 or Step 4 to chipset via
    indirect I/O (0xCD6 and 0xCD7).

 Step 7) Enable and setup the watchdog timer

This patch has worked fine on my test environment (ASUS M4A89GTD-PRO/USB3 and
DL165G7). therefore I believe that it's no problem to re-program the MMIO
address for watchdog timer to chipset during disabled watchdog. However,
I'm not sure about it, because I don't know much about chipset programming.

So, any comments will be welcome.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:09 +01:00
Murali Karicheri
902e2e7d48 watchdog: davinci_wdt: add OF support
This adds OF support for davinci_wdt driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:08 +01:00
Tushar Behera
0360dffedd watchdog: da9052: Fix invalid free of devm_ allocated data
It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9052_wdt_release_resources()
is not deleted.

Fixes following warning.
drivers/watchdog/da9052_wdt.c:59:1-6: WARNING: invalid free of
devm_ allocated data

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:07 +01:00
Peter Ujfalusi
2bc3f62f96 watchdog: twl4030_wdt: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
To facilitate upcoming cleanup in twl stack.
No functional changes.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:07 +01:00
Kees Cook
e1926349c2 watchdog: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:06 +01:00
Joe Perches
77e0dfcc09 watchdog: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
dev_<level> calls take less code than dev_printk(KERN_<LEVEL>
and reducing object size is good.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:25:06 +01:00
Ashish Jangam
312b00e1c3 watchdog: DA9055 Watchdog driver
This is the Watchdog patch for the DA9055 PMIC. This patch has got dependency on
the DA9055 MFD core.

This patch is functionally tested on SMDK6410

Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:58 +01:00
Aaro Koskinen
1ba85387f0 watchdog: omap_wdt: eliminate goto
Eliminate a goto to simplify the code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:57 +01:00
Aaro Koskinen
ef48174729 watchdog: omap_wdt: delete redundant platform_set_drvdata() calls
It's not needed to manually reset the driver data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:57 +01:00
Aaro Koskinen
4f4753d96d watchdog: omap_wdt: convert to devm_ functions
Use devm_kzalloc(), devm_request_mem_region() ande devm_ioremap()
to simplify the code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:56 +01:00
Aaro Koskinen
67c0f55468 watchdog: omap_wdt: convert to new watchdog core
Convert omap_wdt to new watchdog core. On OMAP boards, there are usually
multiple watchdogs. Since the new watchdog core supports multiple
watchdogs, all watchdog drivers used on OMAP should be converted.

The legacy watchdog device node is still created, so this should not
break existing users.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Jarkko Nikula <jarkko.nikula@jollamobile.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:55 +01:00
Fabio Porcedda
cf13a84d17 watchdog: WatchDog Timer Driver Core: fix comment
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:55 +01:00
Thomas Abraham
50d854c8a7 watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:43 +01:00
Fabio Estevam
2d076bb839 watchdog: imx2_wdt: Select the driver via ARCH_MXC
With device tree support in place, we should not use IMX_HAVE_PLATFORM_IMX2_WDT
as a dependency for selecting the imx2_wdt driver.

Use ARCH_MXC symbol instead, so that the driver can be even selected by a device-tree
only SoC, such as i.MX6.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:42 +01:00
devendra.aaru
e09d9c3e9f watchdog: cpu5wdt.c: add missing del_timer call
We do a setup_timer at init stage of the module, but we didn't
de-activate the time using del_timer.

Signed-off-by: devendra.aaru <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19 22:24:41 +01:00