Commit Graph

440775 Commits

Author SHA1 Message Date
Paul Bolle cb8f05f74f blackfin: bf537: fix typo "CONFIG_SND_SOC_ADV80X_MODULE"
There's a (rather subtle) typo in "CONFIG_SND_SOC_ADV80X_MODULE". Fix it
once and for all by using IS_ENABLED(), which is designed to avoid
issues like this.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-12 08:47:56 +08:00
Sonic Zhang 3def9074f9 blackfin: dma: current count mmr is read only
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
2014-04-12 08:47:54 +08:00
Sonic Zhang 3356c99ea3 bfin_crc: Move architecture independant crc header file out of the blackfin folder.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:47:53 +08:00
Steven Miao ba3b6d7504 bf54x: drop unuesd HOST status,control,timeout registers bit define macros
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:47:51 +08:00
Steven Miao a0c1fb2ea7 blackfin: portmux: cleanup head file
drop unused head file
change pinmux request/free macro for backward compatiblity
add function declaration

Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-12 08:46:32 +08:00
Linus Torvalds b7e70ca9c7 Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci
Pull async SCSI resume support from Dan Williams:
 "Allow disks and other devices to resume in parallel.

  This provides a tangible speed up for a non-esoteric use case (laptop
  resume):

    https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach"

* 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci:
  scsi: async sd resume
2014-04-11 17:23:52 -07:00
Linus Torvalds 7f87307818 Just a few md patches for the 3.15 merge window.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIVAwUAU0h5fjnsnt1WYoG5AQKmkw/8DUn0vV4q5UbLp0m2Yy6o6EOxwiSJUH/p
 6EEUmSwyXou75w9OWOJKDX2lI7z1yAtzqiuCQ19ekD5lA6gAosja+D0jKjv0SA01
 rQm2rMjnwOIxZUIRx/7Z+w/H1ZxjIAc8uxOcCBP6DOynWt/YAyVz1SzLLtwCxELL
 N9vjgb+4lVt0E9bBYvVRNiJmtVXpDcmn1YySd6Dqyj9t+Mmysnv8QuIStrT3CE7k
 apss3ew6bBbtbiJHuCno/Q4FDWVAhUH+9GMvksdajw8QW52oHV+RRBB5IpCU6hOx
 OKCT4MVdzmTgi6GRhSr86Dt+KMOLWZmbx7pK7aRQPiL6uFNhqAlJDb/u0xfaHohG
 DiRclZBbsHkEpejHaZcJCkyKFHQTEiia3JVk426FAhtiK1qIBuyxEc65RmKf6dsA
 1KlZVeclD3wYWKG4hWk/0W3qIPOWBMll+Ely5Zg6s2X3gGy9u5TU+tUsfJaL1aDU
 NOY+5D0+hg7o21kK7WgTaP2upexC/iaBrVrdlasM2KYXJVDrsfCAQr1/BwTl4qLq
 Lm/OkIg+WtrQ95RvsI85Hm4PJVxBd1HeyDlKNCcz47kc3Xxqabeq8KnwERyOh4hU
 U4EmAeCZmSGOOETIWQQxlIn8XdM1+dF4olUH9viEAXrQfGgUyrg6Vcc7BOdTTZCY
 8ek3CWG3TwE=
 =kHl3
 -----END PGP SIGNATURE-----

Merge tag 'md/3.15' of git://neil.brown.name/md

Pull md updates from Neil Brown:
 "Just a few md patches for the 3.15 merge window.

  Not much happening in md/raid at the moment.  Just a few bug fixes
  (one for -stable) and a couple of performance tweaks"

* tag 'md/3.15' of git://neil.brown.name/md:
  raid5: get_active_stripe avoids device_lock
  raid5: make_request does less prepare wait
  md: avoid oops on unload if some process is in poll or select.
  md/raid1: r1buf_pool_alloc: free allocate pages when subsequent allocation fails.
  md/bitmap: don't abuse i_writecount for bitmap files.
2014-04-11 17:20:38 -07:00
Linus Torvalds 3e8072d48b Merge git://git.infradead.org/users/willy/linux-nvme
Pull NVMe driver updates from Matthew Wilcox:
 "Various updates to the NVMe driver.  The most user-visible change is
  that drive hotplugging now works and CPU hotplug while an NVMe drive
  is installed should also work better"

* git://git.infradead.org/users/willy/linux-nvme:
  NVMe: Retry failed commands with non-fatal errors
  NVMe: Add getgeo to block ops
  NVMe: Start-stop nvme_thread during device add-remove.
  NVMe: Make I/O timeout a module parameter
  NVMe: CPU hot plug notification
  NVMe: per-cpu io queues
  NVMe: Replace DEFINE_PCI_DEVICE_TABLE
  NVMe: Fix divide-by-zero in nvme_trans_io_get_num_cmds
  NVMe: IOCTL path RCU protect queue access
  NVMe: RCU protected access to io queues
  NVMe: Initialize device reference count earlier
  NVMe: Add CONFIG_PM_SLEEP to suspend/resume functions
2014-04-11 16:45:59 -07:00
Linus Torvalds a63b747b41 Merge git://git.kvack.org/~bcrl/aio-next
Pull aio ctx->ring_pages migration serialization fix from Ben LaHaise.

* git://git.kvack.org/~bcrl/aio-next:
  aio: v4 ensure access to ctx->ring_pages is correctly serialised for migration
2014-04-11 16:36:50 -07:00
Mike Marciniszyn b076808051 ib_srpt: Use correct ib_sg_dma primitives
The code was incorrectly using sg_dma_address() and
sg_dma_len() instead of ib_sg_dma_address() and
ib_sg_dma_len().

This prevents srpt from functioning with the
Intel HCA and indeed will corrupt memory
badly.

Cc: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Tested-by: Vinod Kumar <vinod.kumar@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: stable@vger.kernel.org # 3.3+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:31:20 -07:00
Andy Grover e3d4440cdc target/tcm_fc: Rename ft_tport_create to ft_tport_get
Because it doesn't always create, if there's an existing one it just
returns it.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:30:52 -07:00
Andy Grover 0d7cb932b7 target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn
These functions are not adding or deleting an lport. They are adding a
wwn that may match with an lport that is present on the system.

Renaming ft_del_lport also means we won't have functions named
both ft_del_lport and ft_lport_del any more.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:30:51 -07:00
Andy Grover 705665da22 target/tcm_fc: Rename structs and list members for clarity
Rename struct ft_lport_acl to ft_lport_wwn. "acl" is associated with
something different in LIO terms. Really, ft_lport_wwn is the
fabric-specific wrapper for the struct se_wwn.

Rename "lacl" local variables to "ft_wwn" as well.

Rename list_heads used as list members to make it clear they're nodes, not
heads.

Rename lport_node to ft_wwn_node.

Rename ft_lport_list to ft_wwn_list

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:30:51 -07:00
Andy Grover d242c1d7d3 target/tcm_fc: Limit to 1 TPG per wwn
tcm_fc doesn't support multiple TPGs per wwn. For proof, see
ft_lport_find_tpg. Enforce this in the code.

Replace ft_lport_wwn.tpg_list with a single pointer. We can't fold ft_tpg
into ft_lport_wwn because they can have different lifetimes.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:30:50 -07:00
Andy Grover b295e76900 target/tcm_fc: Don't export ft_lport_list
Nobody outside tfc_conf.c uses it.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:30:50 -07:00
Andy Grover 2c42be2dd4 target/tcm_fc: Fix use-after-free of ft_tpg
ft_del_tpg checks tpg->tport is set before unlinking the tpg from the
tport when the tpg is being removed. Set this pointer in ft_tport_create,
or the unlinking won't happen in ft_del_tpg and tport->tpg will reference
a deleted object.

This patch sets tpg->tport in ft_tport_create, because that's what
ft_del_tpg checks, and is the only way to get back to the tport to
clear tport->tpg.

The bug was occuring when:

- lport created, tport (our per-lport, per-provider context) is
  allocated.
  tport->tpg = NULL
- tpg created
- a PRLI is received. ft_tport_create is called, tpg is found and
  tport->tpg is set
- tpg removed. ft_tpg is freed in ft_del_tpg. Since tpg->tport was not
  set, tport->tpg is not cleared and points at freed memory
- Future calls to ft_tport_create return tport via first conditional,
  instead of searching for new tpg by calling ft_lport_find_tpg.
  tport->tpg is still invalid, and will access freed memory.

see https://bugzilla.redhat.com/show_bug.cgi?id=1071340

Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:27:23 -07:00
Alex Leung 47b1584c1c target: Add check to prevent Abort Task from aborting itself
This patch addresses an issue that occurs when an ABTS is received
for an se_cmd that completes just before the sess_cmd_list is searched
in core_tmr_abort_task(). When the sess_cmd_list is searched, since
the ABTS and the FCP_CMND being aborted (that just completed) both
have the same OXID, TFO->get_task_tag(TMR) returns a value that
matches tmr->ref_task_tag (from TFO->get_task_tag(FCP_CMND)), and
the Abort Task tries to abort itself. When this occurs,
transport_wait_for_tasks() hangs forever since the TMR is waiting
for itself to finish.

This patch adds a check to core_tmr_abort_task() to make sure the
TMR does not attempt to abort itself.

Signed-off-by: Alex Leung <alex.leung@emulex.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-11 15:27:15 -07:00
Linus Torvalds 3123bca719 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull second set of btrfs updates from Chris Mason:
 "The most important changes here are from Josef, fixing a btrfs
  regression in 3.14 that can cause corruptions in the extent allocation
  tree when snapshots are in use.

  Josef also fixed some deadlocks in send/recv and other assorted races
  when balance is running"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (23 commits)
  Btrfs: fix compile warnings on on avr32 platform
  btrfs: allow mounting btrfs subvolumes with different ro/rw options
  btrfs: export global block reserve size as space_info
  btrfs: fix crash in remount(thread_pool=) case
  Btrfs: abort the transaction when we don't find our extent ref
  Btrfs: fix EINVAL checks in btrfs_clone
  Btrfs: fix unlock in __start_delalloc_inodes()
  Btrfs: scrub raid56 stripes in the right way
  Btrfs: don't compress for a small write
  Btrfs: more efficient io tree navigation on wait_extent_bit
  Btrfs: send, build path string only once in send_hole
  btrfs: filter invalid arg for btrfs resize
  Btrfs: send, fix data corruption due to incorrect hole detection
  Btrfs: kmalloc() doesn't return an ERR_PTR
  Btrfs: fix snapshot vs nocow writting
  btrfs: Change the expanding write sequence to fix snapshot related bug.
  btrfs: make device scan less noisy
  btrfs: fix lockdep warning with reclaim lock inversion
  Btrfs: hold the commit_root_sem when getting the commit root during send
  Btrfs: remove transaction from send
  ...
2014-04-11 14:16:53 -07:00
Linus Torvalds 582076ab16 A bunch of updates and cleanup within the transport layer,
particularly with a focus on RDMA.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 Comment: GPGTools - http://gpgtools.org
 
 iQIcBAABAgAGBQJTRXV1AAoJEDZk62b0Tg6xYWAP/0Kfp9/8Z05SQ1fnJveySw1O
 nKK//1/GBmquntqFAVHI6yJRLzPJ+Z/Y4u4a0qriwfgpPQvUJQrL77tY/VfEBUPB
 VoJG1tj7lpdLrO3p4YyPkPjymyC7YOoFNjGEstWFg7HetwnnqqZL2LB+5yJzyqjx
 y9nv1HzsrbAE7j8C4hQ1Nmds5muUb5VhnTtPhjrx4tP1sWWh8XTVJbsVDiEqx6cu
 uJXFFTbkONr9jKfv+Ki3H2pZej2yD7w4tU4lkdcGNyij/Q4Xn1iERqroW2/GT6Cl
 AXxlIKN24ASjWo4VqW0Wf8gO8vbUtHRChoiZ69DvzNTkbWmAIWSFHyQJ4cinwuyr
 UbOQZuccO59QtpNVpBvG/vjnbI54rg+VGLy+xE0vcrBDlyoptc56IAFSg8zJY5UN
 ysbyHCGME//9VZ1zeeZvkMjm8z5Enp6x4zmtnUHmufO7DVMTFUePED6U1u9WIyP5
 FFy5EboXMSh97yB8REvbIlY2MgBJWYdnyzLKFMeRpzC8fOXJqBoCX8i3Z5SkMYWJ
 1FS/pGr7ec/VX1iHXSYi9hhzTJ6o9mEmOIhaO4UcqAuK8Rk2jbCp1Lx0iDhmJtdT
 zjofGDe57ro7nOZf8A/TI5z+6BZq8KYVfZrXtYaPqC4rXOzJAox/yHlz9FmAJYgv
 ssOIKXX0ujLwqrMBVatj
 =yzy/
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull 9p changes from Eric Van Hensbergen:
 "A bunch of updates and cleanup within the transport layer,
  particularly with a focus on RDMA"

* tag 'for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9pnet_rdma: check token type before int conversion
  9pnet: trans_fd : allocate struct p9_trans_fd and struct p9_conn together.
  9pnet: p9_client->conn field is unused. Remove it.
  9P: Get rid of REQ_STATUS_FLSH
  9pnet_rdma: add cancelled()
  9pnet_rdma: update request status during send
  9P: Add cancelled() to the transport functions.
  net: Mark function as static in 9p/client.c
  9P: Add memory barriers to protect request fields over cb/rpc threads handoff
2014-04-11 14:14:57 -07:00
Lorenzo Colitti a36dbdb28e net: ipv6: Fix oif in TCP SYN+ACK route lookup.
net-next commit 9c76a11, ipv6: tcp_ipv6 policy route issue, had
a boolean logic error that caused incorrect behaviour for TCP
SYN+ACK when oif-based rules are in use. Specifically:

1. If a SYN comes in from a global address, and sk_bound_dev_if
   is not set, the routing lookup has oif set to the interface
   the SYN came in on. Instead, it should have oif unset,
   because for global addresses, the incoming interface doesn't
   necessarily have any bearing on the interface the SYN+ACK is
   sent out on.
2. If a SYN comes in from a link-local address, and
   sk_bound_dev_if is set, the routing lookup has oif set to the
   interface the SYN came in on. Instead, it should have oif set
   to sk_bound_dev_if, because that's what the application
   requested.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:43:47 -04:00
Linus Torvalds 79d2d21ee0 spi: Fixes for v3.15
A few driver specific fixes, the main one being the fix for handling of
 complete callbacks that are open coded in individual drivers to allow
 callers to omit the completion.  As we move things into the core that
 sort of issue should become less and less common.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJTR8jpAAoJELSic+t+oim9R3YQAJ1SjEGkdZ2T41pASsm1otmW
 o0mS5j+YSPvW+H7XxOFfGed51Mw+TUKgIrxOutHZOKqYbeqikphbGqOAcRlcmNZ2
 H7REdmlYT0EFBd+K2mNDqoOL9c56kxldEzJBXXu9keAJcY358Fl9gOpIz55py+CS
 ftrf1A6Vvwiyvlk9/AkmR1n+PlRrDP881C1DGK+q4yoHlKbJylqTzkdK/DTO4AgU
 wSPtK9NAciq6gBjInWwZA83GRioCAk5pvHTyXVn9IcS7g2J7AAtObDg5w8LmZ2GD
 1/QS47S6IL5ksdQ464RS6tmQamm422C3KWJuYejJt4UVtlL6QCWeM+baj7HgwbHR
 /DFs+Zgi2tZABtqo5stOCNl75gr8aOY75M0fc0Hm4OeJlKA5DoxT8aC5mrTT2z+j
 cF1Ro6v9rHSRm0WE+ZoD3ykyWmjHnoXTNa6Fhy4g8712BdWpEiNnfsTaPvvz7I8w
 BlKdAoCB2BHPMAzbe2FO/RLsi387rmbDdYP5nSj5iCIKkCMhX2E9XuAnJ1tNhQ+y
 IsY88DPIr10OXOJht5TPMVY+R+6SJj4yJFRVwJOXjlxJhHcjIBSUSH8v2qp3SEfG
 sUXR8bacFsE5TRnE2vRx7CsjPUxp3If5X/POmAGURwWOGo3RlUICr9pzbAHyP4xt
 tOHlGZnutsHv/2ZflCBh
 =rgeq
 -----END PGP SIGNATURE-----

Merge tag 'spi-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few driver specific fixes, the main one being the fix for handling
  of complete callbacks that are open coded in individual drivers to
  allow callers to omit the completion.  As we move things into the core
  that sort of issue should become less and less common"

* tag 'spi-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: qup: Depend on ARCH_QCOM
  spi: efm32: Update binding document to make "efm32,location" property optional
  spi: omap2-mcspi: Convert to use devm_kcalloc
  spi: Always check complete callback before calling it
2014-04-11 13:35:49 -07:00
David S. Miller 6a489c4899 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
Please pull this batch of fixes intended for the 3.15 stream!

Chun-Yeow Yeoh gives us an ath9k_htc fix so that mac80211 can report
last_tx_rate correctly for those devices..

Fariya Fatima has a number of small fixes for things identified by
the static analysis folks in the new rsi driver.

Felix Fietkau brings an ath9k fix to better support some older chips,
and a fix for a scheduling while atomic bug introduced by an earlier
patch.

Janusz Dziedzic produced an ath9k fix to only enable DFS when a
related build option is selected.

Paul Bolle removes some dead code in rtlwifi.

Rafał Miłecki fixes some b43 code that was accessing some registers
with operations for the wrong register width.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:34:33 -04:00
Linus Torvalds c0c4cf0645 regulator: Fixes for v3.15
A few driver specific fixes that have come in over the merge window,
 all only relevant for the specific driver.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJTR8B/AAoJELSic+t+oim9+EoQAJjRksEJnlSTxKPd7AaYH/CD
 PiDYSqK5vgmOgEFJW83Dcf94EM75G11W4bWK6JvWcd2eq8j65+cZRjmjcVvhClKj
 2iI8vz1gkEKoZb8MeVQsH1e1QNp4sZXPvrPsvQ0O56apw7oyI1dAkpYkHFR5D/C9
 d3btXtPu6rlCLCyIn9XsCXe9ZD4rgeYdLF5mA8ouYwHja8Ou0xyeZGUO6rI30ZMo
 3DVJ2yq8GGDHbtoAaL4G2aY0l8//bAg3VxrmR9q8TQLnvZTXFpmvbgGszmHLqSRl
 PGcNDF87zzwLEclOuJNJLF7dmFMwhg3Ejn+G1cDPZF0dkdisDKk8Rzqo4bkQ2a/u
 Xja7W/Lhnc61j04Sx01wN6suv8jKqHfrHMmK5rM6wPe2KaAnkpPc0ACSwJ+OKO+u
 GruHdDS+bgY2839XCLR7+kds8Rs7gGl8H3qo68Jha3Wn2Uw0TIOZSbVJnGiYkjP5
 4KndZDj1DoJGk+7OGYVEKj+W36C6ubN9dPdfqlX64s4ARbScX2pTaYJPov7DcROK
 Frllv1wfJ0UILpdjp43hJRvYPSewROPxxUydKObG46hk8IDq1lOhim414tbuDNCp
 IvPMstIFqxXb83iqMYRzsUWw7Fmbq81zJaq0OUfjRpz4BfzAyG1gavtua11pFMvE
 AKbU/j/GTNljh69mr9GK
 =mEb8
 -----END PGP SIGNATURE-----

Merge tag 'regulator-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A few driver specific fixes that have come in over the merge window,
  all only relevant for the specific driver"

* tag 'regulator-v3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: bcm590xx: Set n_voltages for linear reg
  regulator: s5m8767: Fix carried over ena_gpio assignment
  regulator: s2mps11: Don't check enable_shift before setting enable ramp rate
  regulator: s2mpa01: Don't check enable_shift before setting enable ramp rate
2014-04-11 13:30:05 -07:00
David S. Miller 45cdf9f3f3 Merge branch 'cpsw'
Mugunthan V N says:

====================
This patch series fixes the cpsw issue with interface up/dpwn with high
ethernet traffic.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:28:05 -04:00
Mugunthan V N f63a975e8f drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts
When the Ethernet interface is put down and up with heavy Ethernet
traffic, then there is prossibility of an interrupt waiting in irq
controller to be processed, so when the interface is brought up again
just after enable interrupt, it goes to ISR due to the previous
unhandled interrutp and in ISR napi is not scheduled as the napi
is not enabled in ndo_open which results in disabled interrupt for
CPSW and no packets are received in cpsw. So this patch moves enabling
of interupts after napi_enable and clearing CPDMA interrupts.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:27:41 -04:00
Mugunthan V N 16e5c57da6 drivers: net: cpsw: discard all packets received when interface is down
When the Ethernet interface is brought down during high Ethernet traffic,
then cpsw creates the following warn dump. When cpdma has already processed
the packet then the status will be greater than 0, so the cpsw_rx_handler
considers that the interface is up and try to resubmit one more rx buffer
to cpdma which fails as the DMA is in teardown process. This can be avoided
by checking the interface state and then process the received packet, if the
interface is down just discard and free the skb and return.

[ 2823.104591] WARNING: CPU: 0 PID: 1823 at drivers/net/ethernet/ti/cpsw.c:711 cpsw_rx_handler+0x148/0x164()
[ 2823.114654] Modules linked in:
[ 2823.117872] CPU: 0 PID: 1823 Comm: ifconfig Tainted: G        W     3.14.0-11992-gf34c4a3 #11
[ 2823.126860] [<c0014b5c>] (unwind_backtrace) from [<c00117e4>] (show_stack+0x10/0x14)
[ 2823.135030] [<c00117e4>] (show_stack) from [<c0533a9c>] (dump_stack+0x80/0x9c)
[ 2823.142619] [<c0533a9c>] (dump_stack) from [<c003f0e0>] (warn_slowpath_common+0x6c/0x90)
[ 2823.151141] [<c003f0e0>] (warn_slowpath_common) from [<c003f120>] (warn_slowpath_null+0x1c/0x24)
[ 2823.160336] [<c003f120>] (warn_slowpath_null) from [<c03caeb0>] (cpsw_rx_handler+0x148/0x164)
[ 2823.169314] [<c03caeb0>] (cpsw_rx_handler) from [<c03c730c>] (__cpdma_chan_free+0x90/0xa8)
[ 2823.178028] [<c03c730c>] (__cpdma_chan_free) from [<c03c7418>] (__cpdma_chan_process+0xf4/0x134)
[ 2823.187279] [<c03c7418>] (__cpdma_chan_process) from [<c03c7560>] (cpdma_chan_stop+0xb4/0x17c)
[ 2823.196349] [<c03c7560>] (cpdma_chan_stop) from [<c03c766c>] (cpdma_ctlr_stop+0x44/0x9c)
[ 2823.204872] [<c03c766c>] (cpdma_ctlr_stop) from [<c03cb708>] (cpsw_ndo_stop+0x154/0x188)
[ 2823.213321] [<c03cb708>] (cpsw_ndo_stop) from [<c046f0ec>] (__dev_close_many+0x84/0xc8)
[ 2823.221761] [<c046f0ec>] (__dev_close_many) from [<c046f158>] (__dev_close+0x28/0x3c)
[ 2823.230012] [<c046f158>] (__dev_close) from [<c0474ca8>] (__dev_change_flags+0x88/0x160)
[ 2823.238483] [<c0474ca8>] (__dev_change_flags) from [<c0474da0>] (dev_change_flags+0x18/0x48)
[ 2823.247316] [<c0474da0>] (dev_change_flags) from [<c04d12c4>] (devinet_ioctl+0x61c/0x6e0)
[ 2823.255884] [<c04d12c4>] (devinet_ioctl) from [<c045c660>] (sock_ioctl+0x68/0x2a4)
[ 2823.263789] [<c045c660>] (sock_ioctl) from [<c0125fe4>] (do_vfs_ioctl+0x78/0x61c)
[ 2823.271629] [<c0125fe4>] (do_vfs_ioctl) from [<c01265ec>] (SyS_ioctl+0x64/0x74)
[ 2823.279284] [<c01265ec>] (SyS_ioctl) from [<c000e580>] (ret_fast_syscall+0x0/0x48)

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:27:41 -04:00
Linus Torvalds 4b44e7b135 regmap: Fix for nodev mode
Add mising braces so that the nodev mode actually works (which was a bit
 of an oversight).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJTR73jAAoJELSic+t+oim9DU4P/0syjNA3/oiZ+HgJZpCELafI
 sbbAV+nKTzOKpYTtGLxpQe67gPrZ5kVw9wydYOhWRZ22wbdJ3dyBcizpGnpPQuEC
 1/MK8GYj9F1bO3FimwRhdu3oyafNRYVAfNZvBzxrqhcq8US5xu3CLMUFOVHreVOi
 +IZn8hrsE9Z6lf/MAJUhsPDvXcqnQAHTODqzIKB38zpwdy22NOfDJgoDRIhKIoun
 xIdvf1pmMvKNc8ClZzBHokMgg37UbsVYPeUP6zH7d0+0Id38v2R94MKFC+uAcgk0
 xj4R9c2biVs8+Vz9TG2eMeVbBU6XlYVkHFrXUKFfpua4aOuLf17wun52Gt8JdBi9
 c4HFzvJXbvvbWk+b24P6+olh0yVmD+2wrsjpEa/nkB3aZMLqrIPX7gCo/3z8TvS7
 iDf6snJiUPOK5OIYJSm28ERrkTjxvXTpFZFwvss7vNZ08Oz4FgCb+UmRAdyXKaec
 slmLqVLDYV2+VrAqHZe5QFjWc2IJ1bqTX7R57Z6REx+s+e+A6K8i9TDzsQ7zLa+d
 +M2oq7Wn3bwXQwwuOvbg0ZrE96PyFbyXqcS5xcByFv24MoX6T9MXlFNhAPXxq+NB
 j854BZbo8OjL3uR91CXsR0a6/UERamnENQdiw3GTEVxjovGRfvRjdsfBjpPXBf3U
 YzFEflwQIU/CqdtELDWQ
 =Kfpr
 -----END PGP SIGNATURE-----

Merge tag 'regmap-v3.15-nodev' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "regmap: Fix for nodev mode

  Add mising braces so that the nodev mode actually works (which was a
  bit of an oversight)"

Testing schmesting.  We don't need not steenking testing.  We have
deadlines to beat, and new code to write.

* tag 'regmap-v3.15-nodev' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: adds missing braces in regmap_init()
2014-04-11 13:25:08 -07:00
Linus Torvalds eeb91e4f9d More ACPI and power management fixes and updates for 3.15-rc1
- Fix for a recently introduced CPU hotplug regression in ARM KVM
    from Ming Lei.
 
  - Fixes for breakage in the at32ap, loongson2_cpufreq, and unicore32
    cpufreq drivers introduced during the 3.14 cycle (-stable material)
    from Chen Gang and Viresh Kumar.
 
  - New powernv cpufreq driver from Vaidyanathan Srinivasan, with bits
    from Gautham R Shenoy and Srivatsa S Bhat.
 
  - Exynos cpufreq driver fix preventing it from being included into
    multiplatform builds that aren't supported by it from Sachin Kamat.
 
  - cpufreq cleanups related to the usage of the driver_data field in
    struct cpufreq_frequency_table from Viresh Kumar.
 
  - cpufreq ppc driver cleanup from Sachin Kamat.
 
  - Intel BayTrail support for intel_idle and ACPI idle from Len Brown.
 
  - Intel CPU model 54 (Atom N2000 series) support for intel_idle from
    Jan Kiszka.
 
  - intel_idle fix for Intel Ivy Town residency targets from Len Brown.
 
  - turbostat updates (Intel Broadwell support and output cleanups)
    from Len Brown.
 
  - New cpuidle sysfs attribute for exporting C-states' target residency
    information to user space from Daniel Lezcano.
 
  - New kernel command line argument to prevent power domains enabled
    by the bootloader from being turned off even if they are not in use
    (for diagnostics purposes) from Tushar Behera.
 
  - Fixes for wakeup sysfs attributes documentation from Geert Uytterhoeven.
 
  - New ACPI video blacklist entry for ThinkPad Helix from Stephen Chandler
    Paul.
 
  - Assorted ACPI cleanups and a Kconfig help update from Jonghwan Choi,
    Zhihui Zhang, Hanjun Guo.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJTRxLAAAoJEILEb/54YlRxnCwP/16UwO/eVE8SIi0TqQboikFC
 k8u7F3zgDYG+xPSzXlCR+J7thTxGueQlrb+aM18PYuMVgaw2rpy7U7SIqEk8s6oR
 uFnzZCWKA5ZebbZn+NlodnQaJmbgJxwsVJDuuechUka/e67CaIc54JULi2ynZ0lz
 Kg/nU3NJhu4S81cT5SOTkJ9xE63oxHcCwKbNqEmxn7x7ddFzGK/DThG67NMEnW1F
 vHbBTSyI6vmXXg1f9aobUtuo3PfJkkx5jD+nR1H2e6wmB64tW7JPVKV3mi6LJfYM
 ui/8/gNb3PUMHMX1QbL9EFbPxl9miQx2NJ7dgFKa1HZ/WPyiXpJjz7uGr9O3Fau3
 cFVREdaW8p2TAYWOEgH8luohhdK0j8UEpR/sEm0TrTjsK8wqczVf/hz6RraVJZiN
 ck6eVHjY6m3/bFQauZQ/r+DNeeNcdr+iLejgjbh/MXuF3j0kx+1dkKkzCEU2TgEZ
 9etF0uzjlgyXySyxNKBeSW13+ssVA6kF5/BHns7LHoxTfGu7Y4oVaWUi+j74i66O
 bc+2ileNal71mS4v9gomnj6Ffj8oH8KXFA7k0sEsAdwLZNgThB5bTppmY/U7Y5Ce
 hTS81tcGe2vOVQzF9iFOF7LNKKussAVAtrgkkrA8lJLeOTfQbIo4+fMhORxf3X/p
 3O7R/jc4cT+IXK8a2xRt
 =hGKg
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-3.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management fixes and updates from Rafael Wysocki:
 "This is PM and ACPI material that has emerged over the last two weeks
  and one fix for a CPU hotplug regression introduced by the recent CPU
  hotplug notifiers registration series.

  Included are intel_idle and turbostat updates from Len Brown (these
  have been in linux-next for quite some time), a new cpufreq driver for
  powernv (that might spend some more time in linux-next, but BenH was
  asking me so nicely to push it for 3.15 that I couldn't resist), some
  cpufreq fixes and cleanups (including fixes for some silly breakage in
  a couple of cpufreq drivers introduced during the 3.14 cycle),
  assorted ACPI cleanups, wakeup framework documentation fixes, a new
  sysfs attribute for cpuidle and a new command line argument for power
  domains diagnostics.

  Specifics:

   - Fix for a recently introduced CPU hotplug regression in ARM KVM
     from Ming Lei.

   - Fixes for breakage in the at32ap, loongson2_cpufreq, and unicore32
     cpufreq drivers introduced during the 3.14 cycle (-stable material)
     from Chen Gang and Viresh Kumar.

   - New powernv cpufreq driver from Vaidyanathan Srinivasan, with bits
     from Gautham R Shenoy and Srivatsa S Bhat.

   - Exynos cpufreq driver fix preventing it from being included into
     multiplatform builds that aren't supported by it from Sachin Kamat.

   - cpufreq cleanups related to the usage of the driver_data field in
     struct cpufreq_frequency_table from Viresh Kumar.

   - cpufreq ppc driver cleanup from Sachin Kamat.

   - Intel BayTrail support for intel_idle and ACPI idle from Len Brown.

   - Intel CPU model 54 (Atom N2000 series) support for intel_idle from
     Jan Kiszka.

   - intel_idle fix for Intel Ivy Town residency targets from Len Brown.

   - turbostat updates (Intel Broadwell support and output cleanups)
     from Len Brown.

   - New cpuidle sysfs attribute for exporting C-states' target
     residency information to user space from Daniel Lezcano.

   - New kernel command line argument to prevent power domains enabled
     by the bootloader from being turned off even if they are not in use
     (for diagnostics purposes) from Tushar Behera.

   - Fixes for wakeup sysfs attributes documentation from Geert
     Uytterhoeven.

   - New ACPI video blacklist entry for ThinkPad Helix from Stephen
     Chandler Paul.

   - Assorted ACPI cleanups and a Kconfig help update from Jonghwan
     Choi, Zhihui Zhang, Hanjun Guo"

* tag 'pm+acpi-3.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
  ACPI: Update the ACPI spec information in Kconfig
  arm, kvm: fix double lock on cpu_add_remove_lock
  cpuidle: sysfs: Export target residency information
  cpufreq: ppc: Remove duplicate inclusion of fsl_soc.h
  cpufreq: create another field .flags in cpufreq_frequency_table
  cpufreq: use kzalloc() to allocate memory for cpufreq_frequency_table
  cpufreq: don't print value of .driver_data from core
  cpufreq: ia64: don't set .driver_data to index
  cpufreq: powernv: Select CPUFreq related Kconfig options for powernv
  cpufreq: powernv: Use cpufreq_frequency_table.driver_data to store pstate ids
  cpufreq: powernv: cpufreq driver for powernv platform
  cpufreq: at32ap: don't declare local variable as static
  cpufreq: loongson2_cpufreq: don't declare local variable as static
  cpufreq: unicore32: fix typo issue for 'clk'
  cpufreq: exynos: Disable on multiplatform build
  PM / wakeup: Correct presence vs. emptiness of wakeup_* attributes
  PM / domains: Add pd_ignore_unused to keep power domains enabled
  ACPI / dock: Drop dock_device_ids[] table
  ACPI / video: Favor native backlight interface for ThinkPad Helix
  ACPI / thermal: Fix wrong variable usage in debug statement
  ...
2014-04-11 13:20:04 -07:00
David S. Miller 676d23690f net: Fix use after free by removing length arg from sk_data_ready callbacks.
Several spots in the kernel perform a sequence like:

	skb_queue_tail(&sk->s_receive_queue, skb);
	sk->sk_data_ready(sk, skb->len);

But at the moment we place the SKB onto the socket receive queue it
can be consumed and freed up.  So this skb->len access is potentially
to freed up memory.

Furthermore, the skb->len can be modified by the consumer so it is
possible that the value isn't accurate.

And finally, no actual implementation of this callback actually uses
the length argument.  And since nobody actually cared about it's
value, lots of call sites pass arbitrary values in such as '0' and
even '1'.

So just remove the length argument from the callback, that way there
is no confusion whatsoever and all of these use-after-free cases get
fixed as a side effect.

Based upon a patch by Eric Dumazet and his suggestion to audit this
issue tree-wide.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:15:36 -04:00
David S. Miller ad20d5f673 Merge branch 'hyperv'
K. Y. Srinivasan says:

====================
Fix issues with Heper-V network offload code

WS2008 R2 does not support udp checksum offload. Furthermore, ws2012 and
ws2012 r2 have issues offloading udp checksum from Linux guests.
This patch-set addresses these issues as well as other bug fixes.
Please apply.

In this version, I have addressed the comment from David Miller with reagards
to COWing the skb prior to modifying the header (patch 3/3).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:15:22 -04:00
KY Srinivasan af9893a3dc Drivers: net: hyperv: Address UDP checksum issues
ws2008r2 does not support UDP checksum offload. Thus, we cannnot turn on
UDP offload in the host. Also, on ws2012 and ws2012 r2, there appear to be
an issue with UDP checksum offload.
Fix this issue by computing the UDP checksum in the Hyper-V driver.

Based on Dave Miller's comments, in this version, I have COWed the skb
before modifying the UDP header (the checksum field).

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:15:12 -04:00
KY Srinivasan 1f73db495a Drivers: net: hyperv: Negotiate suitable ndis version for offload support
Ws2008R2 supports ndis_version 6.1 and 6.1 is the minimal version required
for various offloads. Negotiate ndis_version 6.1 when on ws2008r2.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:15:12 -04:00
KY Srinivasan 4276372f0d Drivers: net: hyperv: Allocate memory for all possible per-pecket information
An outgoing packet can potentially need per-packet information for
all the offloads and VLAN tagging. Fix this issue.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:15:12 -04:00
Toshiaki Makita eb7076182d bridge: Fix double free and memory leak around br_allowed_ingress
br_allowed_ingress() has two problems.

1. If br_allowed_ingress() is called by br_handle_frame_finish() and
vlan_untag() in br_allowed_ingress() fails, skb will be freed by both
vlan_untag() and br_handle_frame_finish().

2. If br_allowed_ingress() is called by br_dev_xmit() and
br_allowed_ingress() fails, the skb will not be freed.

Fix these two problems by freeing the skb in br_allowed_ingress()
if it fails.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:12:47 -04:00
Thomas Richter db29868653 bonding: Remove debug_fs files when module init fails
Remove the bonding debug_fs entries when the
module initialization fails. The debug_fs
entries should be removed together with all other
already allocated resources.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Jay Vosburgh <j.vosburgh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 15:04:40 -04:00
Linus Torvalds 40e9963e62 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pullx86 core platform updates from Peter Anvin:
 "This is the x86/platform branch with the objectionable IOSF patches
  removed.

  What is left is proper memory handling for Intel GPUs, and a change to
  the Calgary IOMMU code which will be required to make kexec work
  sanely on those platforms after some upcoming kexec changes"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, calgary: Use 8M TCE table size by default
  x86/gpu: Print the Intel graphics stolen memory range
  x86/gpu: Add Intel graphics stolen memory quirk for gen2 platforms
  x86/gpu: Add vfunc for Intel graphics stolen memory base address
2014-04-11 12:04:15 -07:00
Linus Torvalds 8eab6cd031 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "This is a collection of minor fixes for x86, plus the IRET information
  leak fix (forbid the use of 16-bit segments in 64-bit mode)"

NOTE! We may have to relax the "forbid the use of 16-bit segments in
64-bit mode" part, since there may be people who still run and depend on
16-bit Windows binaries under Wine.

But I'm taking this in the current unconditional form for now to see who
(if anybody) screams bloody murder.  Maybe nobody cares.  And maybe
we'll have to update it with some kind of runtime enablement (like our
vm.mmap_min_addr tunable that people who run dosemu/qemu/wine already
need to tweak).

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
  efi: Pass correct file handle to efi_file_{read,close}
  x86/efi: Correct EFI boot stub use of code32_start
  x86/efi: Fix boot failure with EFI stub
  x86/platform/hyperv: Handle VMBUS driver being a module
  x86/apic: Reinstate error IRQ Pentium erratum 3AP workaround
  x86, CMCI: Add proper detection of end of CMCI storms
2014-04-11 11:58:33 -07:00
Linus Torvalds ede1d63fcc Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull second set of ARM changes from Russell King:
 "This is the remainder of the ARM changes for this merge window.
  Included in this request are:

   - fixes for kprobes for big-endian support
   - fix tracing in soft_restart
   - avoid phys address overflow in kdump code
   - fix reporting of read-only pmd bits in kernel page table dump
   - remove unnecessary (and possibly buggy) call to outer_flush_all()
   - fix a three sparse warnings (missing header file for function
     prototypes)
   - fix pj4 crashing single zImage (thanks to arm-soc merging changes
     which enables this with knowledge that the corresponding fix had
     not even been submitted for my tree before the merge window opened)
   - vfp macro cleanups
   - dump register state on undefined instruction userspace faults when
     debugging"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  Dump the registers on undefined instruction userspace faults
  ARM: 8018/1: Add {inc,dec}_preempt_count asm macros
  ARM: 8017/1: Move asm macro get_thread_info to asm/assembler.h
  ARM: 8016/1: Check cpu id in pj4_cp0_init.
  ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it has some differences with V7
  ARM: add missing system_misc.h include to process.c
  ARM: 8009/1: dcscb.c: remove call to outer_flush_all()
  ARM: 8014/1: mm: fix reporting of read-only PMD bits
  ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
  ARM: 8010/1: avoid tracers in soft_restart
  ARM: kprobes-test: Workaround GAS .align bug
  ARM: kprobes-test: use <asm/opcodes.h> for Thumb instruction building
  ARM: kprobes-test: use <asm/opcodes.h> for ARM instruction building
  ARM: kprobes-test: use <asm/opcodes.h> for instruction accesses
  ARM: probes: fix instruction fetch order with <asm/opcodes.h>
2014-04-11 11:56:40 -07:00
Linus Torvalds b42e6dc66b Microblaze patches for 3.15-rc1
- Use asm-generic/io.h and fix intc/timer code
 - Clean platform handling
 - Enable some syscalls
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iEYEABECAAYFAlNHiDIACgkQykllyylKDCHbLgCggWXqrfHFULZqlTUfAV2krfsx
 q44AoJ5sI0rBHEtXnL8Clo5+4vpftv0G
 =CRLR
 -----END PGP SIGNATURE-----

Merge tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull Microblaze updates from Michal Simek:
 - use asm-generic/io.h and fix intc/timer code
 - clean platform handling
 - enable some syscalls

* tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Use asm-generic/io.h
  microblaze: Remove platform folder
  microblaze: Remove generic platform
  microblaze: Sort Kconfig options
  microblaze: Move DTS file to common location at boot/dts folder
  microblaze: Fix compilation failure because of release_thread
  microblaze: Fix sparse warning because of missing cpu.h header
  microblaze: Make timer driver endian aware
  microblaze: Make intc driver endian aware
  microblaze: Wire-up new system calls sched_setattr/getattr
  microblaze: Wire-up preadv/pwritev in syscall table
  microblaze: Enable pselect6 syscall
  microblaze: Drop architecture-specific declaration of early_printk
  microblaze: Rename global function heartbeat()
2014-04-11 11:53:45 -07:00
H. Peter Anvin b3b42ac2cb x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
The IRET instruction, when returning to a 16-bit segment, only
restores the bottom 16 bits of the user space stack pointer.  We have
a software workaround for that ("espfix") for the 32-bit kernel, but
it relies on a nonzero stack segment base which is not available in
32-bit mode.

Since 16-bit support is somewhat crippled anyway on a 64-bit kernel
(no V86 mode), and most (if not quite all) 64-bit processors support
virtualization for the users who really need it, simply reject
attempts at creating a 16-bit segment when running on top of a 64-bit
kernel.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-kicdm89kzw9lldryb1br9od0@git.kernel.org
Cc: <stable@vger.kernel.org>
2014-04-11 10:10:09 -07:00
Paul Bolle fa730d6277 Blackfin: remove "config IP_CHECKSUM_L1"
The only user of Kconfig symbol IP_CHECKSUM_L1 got removed in v2.6.33,
with commit ddf9ddacef ("Blackfin: convert
to generic checksum code"). We can remove the Kconfig entry for this
unused symbol now.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-11 23:41:52 +08:00
Paul Bolle 41f8fd926e blackfin: Remove GENERIC_GPIO config option again
The Kconfig symbol GENERIC_GPIO was removed in v3.10. Nothing cares
about it anymore. It popped up somehow in v3.13, so it can be removed
again.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2014-04-11 23:41:51 +08:00
Thomas Gleixner e8fac6334d blackfin:Use generic /proc/interrupts implementation
There is nothing special in that blackfin code. Use the core
implementation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Miao <realmz6@gmail.com>
Cc: bfin <adi-buildroot-devel@lists.sourceforge.net>
2014-04-11 23:40:55 +08:00
Paul Bolle 30fc7ebe84 blackfin: bf60x: fix typo "CONFIG_PM_BFIN_WAKE_PA15_POL"
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-04-11 22:36:15 +08:00
Russell King 98f0701314 Merge branch 'devel-stable' into for-next 2014-04-11 14:50:13 +01:00
Russell King 53f1d9afb4 Merge branches 'fixes' and 'misc' into for-next 2014-04-11 14:50:05 +01:00
Russell King b5b6b5f544 Dump the registers on undefined instruction userspace faults
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-11 14:48:39 +01:00
Wang Shilong e4fbaee292 Btrfs: fix compile warnings on on avr32 platform
fs/btrfs/scrub.c: In function 'get_raid56_logic_offset':
fs/btrfs/scrub.c:2269: warning: comparison of distinct pointer types lacks a cast
fs/btrfs/scrub.c:2269: warning: right shift count >= width of type
fs/btrfs/scrub.c:2269: warning: passing argument 1 of '__div64_32' from incompatible pointer type

Since @rot is an int type, we should not use do_div(), fix it.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-04-11 06:35:50 -07:00
Mitch A Williams 5b7af02c26 i40evf: program RSS LUT correctly
A recent change broke the RSS LUT programming, causing it to be
programmed with all 0. Correct this by actually assigning the
incremented value back to the counter variable so that the increment
will be remembered by the calling function.

While we're at it, add a proper kernel-doc function comment to our
helper function.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-04-11 06:23:25 -07:00
Francois Romieu fe6d4aa437 i40evf: remove open-coded skb_cow_head
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-04-11 06:16:12 -07:00