Commit Graph

593631 Commits

Author SHA1 Message Date
Zheng Lv
34df117414 fat: fix error message for bogus number of directory entries
"bogus directory-entries per block" was reported for what was instead
bogus number of directory entries. The message also mismatched the
argument passed to printk(), which was sbi->dir_entries.

Fix this by replacing the message with "bogus number of directory
entries". printk() argument was kept unchanged.

Signed-off-by: Zheng Lv <lv.zheng.2015@gmail.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-24 14:28:01 +02:00
Zheng Lv
dcc381e833 fat: fix typo s/supeblock/superblock/
Signed-off-by: Zheng Lv <lv.zheng.2015@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:36:31 +02:00
Helen Koike
aecf4e9baf ASoC: max9877: Remove unused function declaration
Remove unused function declaration from header

Signed-off-by: Helen Koike <helen.koike@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:35:35 +02:00
Jonathan McDowell
05ef8e82ad dw2102: don't output spurious blank lines to the kernel log
The DW2102 DVB-S/S2 driver uses the info() logging function from
dvb-usb.h. This function already appends a newline to the provided log
message, causing the dmesg output from DW2102 to include blank lines.
Fix this by removing the newline in the calls to info().

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:35:34 +02:00
Geert Uytterhoeven
5e0d8d59a5 init: fix Kconfig text
[jkosina@suse.cz: folded another fix on top on the same line as spotted by
 Randy Dunlap]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:25:13 +02:00
Andrew F. Davis
79a3bd8960 ARM: io: fix comment grammar
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:24:01 +02:00
Andreas Gruenbacher
84d86e6d30 ocfs: fix ocfs2_xattr_user_get() argument name
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:22:56 +02:00
Thomas Huth
ae0f1e642e scsi/qla2xxx: Remove erroneous unused macro qla82xx_get_temp_val1()
That macros uses logical "&&" instead of bit-wise "&" which is
apparently wrong. Since the macro is completely unused, simply
remove it, so that nobody can accidentially use it anymore.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-21 13:22:39 +02:00
Linus Torvalds
16bf834805 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (21 commits)
  gitignore: fix wording
  mfd: ab8500-debugfs: fix "between" in printk
  memstick: trivial fix of spelling mistake on management
  cpupowerutils: bench: fix "average"
  treewide: Fix typos in printk
  IB/mlx4: printk fix
  pinctrl: sirf/atlas7: fix printk spelling
  serial: mctrl_gpio: Grammar s/lines GPIOs/line GPIOs/, /sets/set/
  w1: comment spelling s/minmum/minimum/
  Blackfin: comment spelling s/divsor/divisor/
  metag: Fix misspellings in comments.
  ia64: Fix misspellings in comments.
  hexagon: Fix misspellings in comments.
  tools/perf: Fix misspellings in comments.
  cris: Fix misspellings in comments.
  c6x: Fix misspellings in comments.
  blackfin: Fix misspelling of 'register' in comment.
  avr32: Fix misspelling of 'definitions' in comment.
  treewide: Fix typos in printk
  Doc: treewide : Fix typos in DocBook/filesystem.xml
  ...
2016-05-17 17:05:30 -07:00
Linus Torvalds
a7fd20d1c4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Support SPI based w5100 devices, from Akinobu Mita.

   2) Partial Segmentation Offload, from Alexander Duyck.

   3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE.

   4) Allow cls_flower stats offload, from Amir Vadai.

   5) Implement bpf blinding, from Daniel Borkmann.

   6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is
      actually using FASYNC these atomics are superfluous.  From Eric
      Dumazet.

   7) Run TCP more preemptibly, also from Eric Dumazet.

   8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e
      driver, from Gal Pressman.

   9) Allow creating ppp devices via rtnetlink, from Guillaume Nault.

  10) Improve BPF usage documentation, from Jesper Dangaard Brouer.

  11) Support tunneling offloads in qed, from Manish Chopra.

  12) aRFS offloading in mlx5e, from Maor Gottlieb.

  13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo
      Leitner.

  14) Add MSG_EOR support to TCP, this allows controlling packet
      coalescing on application record boundaries for more accurate
      socket timestamp sampling.  From Martin KaFai Lau.

  15) Fix alignment of 64-bit netlink attributes across the board, from
      Nicolas Dichtel.

  16) Per-vlan stats in bridging, from Nikolay Aleksandrov.

  17) Several conversions of drivers to ethtool ksettings, from Philippe
      Reynes.

  18) Checksum neutral ILA in ipv6, from Tom Herbert.

  19) Factorize all of the various marvell dsa drivers into one, from
      Vivien Didelot

  20) Add VF support to qed driver, from Yuval Mintz"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits)
  Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
  Revert "phy dp83867: Make rgmii parameters optional"
  r8169: default to 64-bit DMA on recent PCIe chips
  phy dp83867: Make rgmii parameters optional
  phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
  bpf: arm64: remove callee-save registers use for tmp registers
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  switchdev: pass pointer to fib_info instead of copy
  net_sched: close another race condition in tcf_mirred_release()
  tipc: fix nametable publication field in nl compat
  drivers: net: Don't print unpopulated net_device name
  qed: add support for dcbx.
  ravb: Add missing free_irq() calls to ravb_close()
  qed: Remove a stray tab
  net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fec-mpc52xx: use phydev from struct net_device
  bpf, doc: fix typo on bpf_asm descriptions
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
  net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fs-enet: use phydev from struct net_device
  ...
2016-05-17 16:26:30 -07:00
Linus Torvalds
b80fed9595 - based on Jens' 'for-4.7/core' to have DM thinp's discard support use
bio_inc_remaining() and the block core's new async
   __blkdev_issue_discard() interface
 
 - make DM multipath's fast code-paths lockless, using lockless_deference,
   to significantly improve large NUMA performance when using blk-mq.  The
   m->lock spinlock contention was a serious bottleneck.
 
 - a few other small code cleanups and Documentation fixes
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Merge tag 'dm-4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - based on Jens' 'for-4.7/core' to have DM thinp's discard support use
   bio_inc_remaining() and the block core's new async __blkdev_issue_discard()
   interface

 - make DM multipath's fast code-paths lockless, using lockless_deference,
   to significantly improve large NUMA performance when using blk-mq.
   The m->lock spinlock contention was a serious bottleneck.

 - a few other small code cleanups and Documentation fixes

* tag 'dm-4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin: unroll issue_discard() to create longer discard bio chains
  dm thin: use __blkdev_issue_discard for async discard support
  dm thin: remove __bio_inc_remaining() and switch to using bio_inc_remaining()
  dm raid: make sure no feature flags are set in metadata
  dm ioctl: drop use of __GFP_REPEAT in copy_params()'s __vmalloc() call
  dm stats: fix spelling mistake in Documentation
  dm cache: update cache-policies.txt now that mq is an alias for smq
  dm mpath: eliminate use of spinlock in IO fast-paths
  dm mpath: move trigger_event member to the end of 'struct multipath'
  dm mpath: use atomic_t for counting members of 'struct multipath'
  dm mpath: switch to using bitops for state flags
  dm thin: Remove return statement from void function
  dm: remove unused mapped_device argument from free_tio()
2016-05-17 16:13:00 -07:00
Linus Torvalds
24b9f0cf00 Merge branch 'for-4.7/drivers' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
 "On top of the core pull request, this is the drivers pull request for
  this merge window.  This contains:

   - Switch drivers to the new write back cache API, and kill off the
     flush flags.  From me.

   - Kill the discard support for the STEC pci-e flash driver.  It's
     trivially broken, and apparently unmaintained, so it's safer to
     just remove it.  From Jeff Moyer.

   - A set of lightnvm updates from the usual suspects (Matias/Javier,
     and Simon), and fixes from Arnd, Jeff Mahoney, Sagi, and Wenwei
     Tao.

   - A set of updates for NVMe:

        - Turn the controller state management into a proper state
          machine.  From Christoph.

        - Shuffling of code in preparation for NVMe-over-fabrics, also
          from Christoph.

        - Cleanup of the command prep part from Ming Lin.

        - Rewrite of the discard support from Ming Lin.

        - Deadlock fix for namespace removal from Ming Lin.

        - Use the now exported blk-mq tag helper for IO termination.
          From Sagi.

        - Various little fixes from Christoph, Guilherme, Keith, Ming
          Lin, Wang Sheng-Hui.

   - Convert mtip32xx to use the now exported blk-mq tag iter function,
     from Keith"

* 'for-4.7/drivers' of git://git.kernel.dk/linux-block: (74 commits)
  lightnvm: reserved space calculation incorrect
  lightnvm: rename nr_pages to nr_ppas on nvm_rq
  lightnvm: add is_cached entry to struct ppa_addr
  lightnvm: expose gennvm_mark_blk to targets
  lightnvm: remove mgt targets on mgt removal
  lightnvm: pass dma address to hardware rather than pointer
  lightnvm: do not assume sequential lun alloc.
  nvme/lightnvm: Log using the ctrl named device
  lightnvm: rename dma helper functions
  lightnvm: enable metadata to be sent to device
  lightnvm: do not free unused metadata on rrpc
  lightnvm: fix out of bound ppa lun id on bb tbl
  lightnvm: refactor set_bb_tbl for accepting ppa list
  lightnvm: move responsibility for bad blk mgmt to target
  lightnvm: make nvm_set_rqd_ppalist() aware of vblks
  lightnvm: remove struct factory_blks
  lightnvm: refactor device ops->get_bb_tbl()
  lightnvm: introduce nvm_for_each_lun_ppa() macro
  lightnvm: refactor dev->online_target to global nvm_targets
  lightnvm: rename nvm_targets to nvm_tgt_type
  ...
2016-05-17 16:03:32 -07:00
Linus Torvalds
a4d1dbed0e Merge branch 'for-4.7/core' of git://git.kernel.dk/linux-block
Pull core block layer updates from Jens Axboe:
 "This is the core block IO changes for this merge window.  Nothing
  earth shattering in here, it's mostly just fixes.  In detail:

   - Fix for a long standing issue where wrong ordering in blk-mq caused
     order_to_size() to spew a warning.  From Bart.

   - Async discard support from Christoph.  Basically just splitting our
     sync interface into a submit + wait part.

   - Add a cleaner interface for flagging whether a device has a write
     back cache or not.  We've previously overloaded blk_queue_flush()
     with this, but let's make it more explicit.  Drivers cleaned up and
     updated in the drivers pull request.  From me.

   - Fix for a double check for whether IO accounting is enabled or not.
     From Michael Callahan.

   - Fix for the async discard from Mike Snitzer, reinstating the early
     EOPNOTSUPP return if the device doesn't support discards.

   - Also from Mike, export bio_inc_remaining() so dm can drop it's
     private copy of it.

   - From Ming Lin, add support for passing in an offset for request
     payloads.

   - Tag function export from Sagi, which will be used in NVMe in the
     drivers pull.

   - Two blktrace related fixes from Shaohua.

   - Propagate NOMERGE flag when making a request from a bio, also from
     Shaohua.

   - An optimization to not parse cgroup paths in blk-throttle, if we
     don't need to.  From Shaohua"

* 'for-4.7/core' of git://git.kernel.dk/linux-block:
  blk-mq: fix undefined behaviour in order_to_size()
  blk-throttle: don't parse cgroup path if trace isn't enabled
  blktrace: add missed mask name
  blktrace: delete garbage for message trace
  block: make bio_inc_remaining() interface accessible again
  block: reinstate early return of -EOPNOTSUPP from blkdev_issue_discard
  block: Minor blk_account_io_start usage cleanup
  block: add __blkdev_issue_discard
  block: remove struct bio_batch
  block: copy NOMERGE flag from bio to request
  block: add ability to flag write back caching on a device
  blk-mq: Export tagset iter function
  block: add offset in blk_add_request_payload()
  writeback: Fix performance regression in wb_over_bg_thresh()
2016-05-17 15:29:49 -07:00
Linus Torvalds
c2e7b20705 Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs cleanups from Al Viro:
 "More cleanups from Christoph"

* 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  nfsd: use RWF_SYNC
  fs: add RWF_DSYNC aand RWF_SYNC
  ceph: use generic_write_sync
  fs: simplify the generic_write_sync prototype
  fs: add IOCB_SYNC and IOCB_DSYNC
  direct-io: remove the offset argument to dio_complete
  direct-io: eliminate the offset argument to ->direct_IO
  xfs: eliminate the pos variable in xfs_file_dio_aio_write
  filemap: remove the pos argument to generic_file_direct_write
  filemap: remove pos variables in generic_file_read_iter
2016-05-17 15:05:23 -07:00
Linus Torvalds
c52b76185b Merge branch 'work.const-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull 'struct path' constification update from Al Viro:
 "'struct path' is passed by reference to a bunch of Linux security
  methods; in theory, there's nothing to stop them from modifying the
  damn thing and LSM community being what it is, sooner or later some
  enterprising soul is going to decide that it's a good idea.

  Let's remove the temptation and constify all of those..."

* 'work.const-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  constify ima_d_path()
  constify security_sb_pivotroot()
  constify security_path_chroot()
  constify security_path_{link,rename}
  apparmor: remove useless checks for NULL ->mnt
  constify security_path_{mkdir,mknod,symlink}
  constify security_path_{unlink,rmdir}
  apparmor: constify common_perm_...()
  apparmor: constify aa_path_link()
  apparmor: new helper - common_path_perm()
  constify chmod_common/security_path_chmod
  constify security_sb_mount()
  constify chown_common/security_path_chown
  tomoyo: constify assorted struct path *
  apparmor_path_truncate(): path->mnt is never NULL
  constify vfs_truncate()
  constify security_path_truncate()
  [apparmor] constify struct path * in a bunch of helpers
2016-05-17 14:41:03 -07:00
Linus Torvalds
681750c046 Merge branch 'for-cifs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull cifs xattr updates from Al Viro:
 "This is the remaining parts of the xattr work - the cifs bits"

* 'for-cifs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  cifs: Switch to generic xattr handlers
  cifs: Fix removexattr for os2.* xattrs
  cifs: Check for equality with ACL_TYPE_ACCESS and ACL_TYPE_DEFAULT
  cifs: Fix xattr name checks
2016-05-17 14:35:45 -07:00
Linus Torvalds
820c687b70 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes from Jan Kara:
 "A fix for UDF crash on corrupted media and one UDF header fixup"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Export superblock magic to userspace
  udf: Prevent stack overflow on corrupted filesystem mount
2016-05-17 14:25:02 -07:00
Linus Torvalds
dba1e98731 Some jfs logging cleanups from Joe Perches
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Merge tag 'jfs-4.7' of git://github.com/kleikamp/linux-shaggy

Pull jfs updates from Dave Kleikamp:
 "Some jfs logging cleanups from Joe Perches"

* tag 'jfs-4.7' of git://github.com/kleikamp/linux-shaggy:
  jfs: Coalesce some formats
  jfs: Remove unnecessary line continuations and terminating newlines
  jfs: Remove terminating newlines from jfs_info, jfs_warn, jfs_err uses
2016-05-17 14:15:18 -07:00
Kees Cook
cb6fd68fdd exec: clarify reasoning for euid/egid reset
This section of code initially looks redundant, but is required. This
improves the comment to explain more clearly why the reset is needed.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-17 13:56:53 -07:00
David S. Miller
917fa5353d Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
This reverts commit 7f32541c2f.

This needs reverting too, as per requests.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:49:55 -04:00
David S. Miller
c606b4999b Revert "phy dp83867: Make rgmii parameters optional"
This reverts commit 81003bc924.

Developers have asked me to revert this for now.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:49:24 -04:00
Ard Biesheuvel
27896c83fe r8169: default to 64-bit DMA on recent PCIe chips
The current logic around the 'use_dac' module parameter prevents the
r81969 driver from being loadable on 64-bit systems without any RAM
below 4 GB when the parameter is left at its default value.

So introduce a new default value -1 which indicates that 64-bit DMA
should be enabled on sufficiently recent PCIe chips, i.e., versions
RTL_GIGA_MAC_VER_18 or later. Explicit param values of 0 or 1 retain
the existing behavior of unconditionally enabling/disabling 64-bit DMA
on 64-bit architectures (i.e., regardless of the type and version of the
chip)

Since PCIe chips do not need to CPlusCmd Dual Address Cycle to be set,
make that conditional on the device type as well.

Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:31:09 -04:00
Alexander Graf
81003bc924 phy dp83867: Make rgmii parameters optional
If you compile without OF_MDIO support in an RGMII configuration, we fail
to configure the dp83867 phy today by writing garbage into its configuration
registers.

On the other hand if you do compile with OF_MDIO and the phy gets loaded via
device tree, you have to have the properties set in the device tree, otherwise
we fail to load the driver and don't even attach the generic phy driver to
the interface anymore.

To make things slightly more consistent, make the rgmii configuration properties
optional and allow a user to omit them in their device tree.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:31:09 -04:00
Alexander Graf
7f32541c2f phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
When CONFIG_OF_MDIO is configured as module, the #define for it really
is CONFIG_OF_MDIO_MODULE, not CONFIG_OF_MDIO. So if we are compiling it
as module, the dp83867 doesn't see that OF_MDIO was selected and doesn't
read the dt rgmii parameters.

The fix is simple: Use IS_ENABLED(). It checks for both - module as well
as compiled in code.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:31:08 -04:00
David S. Miller
08a6ee5807 Merge tag 'qcom-soc-for-4.7-2' into net-next
This merges the Qualcomm SOC tree with the net-next, solving the
 merge conflict in the SMD API between the two.
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Merge tag 'net-next-qcom-soc-4.7-2-merge' of git://github.com/andersson/kernel

Merge tag 'qcom-soc-for-4.7-2' into net-next

This merges the Qualcomm SOC tree with the net-next, solving the
merge conflict in the SMD API between the two.
2016-05-17 14:11:19 -04:00
Yang Shi
4c1cd4fdfd bpf: arm64: remove callee-save registers use for tmp registers
In the current implementation of ARM64 eBPF JIT, R23 and R24 are used for
tmp registers, which are callee-saved registers. This leads to variable size
of JIT prologue and epilogue. The latest blinding constant change prefers to
constant size of prologue and epilogue. AAPCS reserves R9 ~ R15 for temp
registers which not need to be saved/restored during function call. So, replace
R23 and R24 to R10 and R11, and remove tmp_used flag to save 2 instructions for
some jited BPF program.

CC: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:03:33 -04:00
John Stultz
cd9e2e5d3f asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
In testing with HiKey, we found that since
commit 3f30b158eb ("asix: On RX avoid creating bad Ethernet
frames"),
we're seeing lots of noise during network transfers:

[  239.027993] asix 1-1.1:1.0 eth0: asix_rx_fixup() Data Header synchronisation was lost, remaining 988
[  239.037310] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0x54ebb5ec, offset 4
[  239.045519] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0xcdffe7a2, offset 4
[  239.275044] asix 1-1.1:1.0 eth0: asix_rx_fixup() Data Header synchronisation was lost, remaining 988
[  239.284355] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0x1d36f59d, offset 4
[  239.292541] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0xaef3c1e9, offset 4
[  239.518996] asix 1-1.1:1.0 eth0: asix_rx_fixup() Data Header synchronisation was lost, remaining 988
[  239.528300] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0x2881912, offset 4
[  239.536413] asix 1-1.1:1.0 eth0: asix_rx_fixup() Bad Header Length 0x5638f7e2, offset 4

And network throughput ends up being pretty bursty and slow with
a overall throughput of at best ~30kB/s (where as previously we
got 1.1MB/s with the slower USB1.1 "full speed" host).

We found the issue also was reproducible on a x86_64 system,
using a "high-speed" USB2.0 port but the throughput did not
measurably drop (possibly due to the scp transfer being cpu
bound on my slow test hardware).

After lots of debugging, I found the check added in the
problematic commit seems to be calculating the offset
incorrectly.

In the normal case, in the main loop of the function, we do:
(where offset is zero, or set to "offset += (copy_length + 1) &
0xfffe" in the previous loop)
    rx->header = get_unaligned_le32(skb->data +
                                    offset);
    offset += sizeof(u32);

But the problematic patch calculates:
    offset = ((rx->remaining + 1) & 0xfffe) + sizeof(u32);
    rx->header = get_unaligned_le32(skb->data + offset);

Adding some debug logic to check those offset calculation used
to find rx->header, the one in problematic code is always too
large by sizeof(u32).

Thus, this patch removes the incorrect " + sizeof(u32)" addition
in the problematic calculation, and resolves the issue.

Cc: Dean Jenkins <Dean_Jenkins@mentor.com>
Cc: "David B. Robins" <linux@davidrobins.net>
Cc: Mark Craske <Mark_Craske@mentor.com>
Cc: Emil Goode <emilgoode@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Ivan Vecera <ivecera@redhat.com>
Cc: linux-usb@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: stable <stable@vger.kernel.org> #4.4+
Reported-by: Yongqin Liu <yongqin.liu@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 14:02:33 -04:00
Linus Torvalds
7f427d3a60 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull parallel filesystem directory handling update from Al Viro.

This is the main parallel directory work by Al that makes the vfs layer
able to do lookup and readdir in parallel within a single directory.
That's a big change, since this used to be all protected by the
directory inode mutex.

The inode mutex is replaced by an rwsem, and serialization of lookups of
a single name is done by a "in-progress" dentry marker.

The series begins with xattr cleanups, and then ends with switching
filesystems over to actually doing the readdir in parallel (switching to
the "iterate_shared()" that only takes the read lock).

A more detailed explanation of the process from Al Viro:
 "The xattr work starts with some acl fixes, then switches ->getxattr to
  passing inode and dentry separately.  This is the point where the
  things start to get tricky - that got merged into the very beginning
  of the -rc3-based #work.lookups, to allow untangling the
  security_d_instantiate() mess.  The xattr work itself proceeds to
  switch a lot of filesystems to generic_...xattr(); no complications
  there.

  After that initial xattr work, the series then does the following:

   - untangle security_d_instantiate()

   - convert a bunch of open-coded lookup_one_len_unlocked() to calls of
     that thing; one such place (in overlayfs) actually yields a trivial
     conflict with overlayfs fixes later in the cycle - overlayfs ended
     up switching to a variant of lookup_one_len_unlocked() sans the
     permission checks.  I would've dropped that commit (it gets
     overridden on merge from #ovl-fixes in #for-next; proper resolution
     is to use the variant in mainline fs/overlayfs/super.c), but I
     didn't want to rebase the damn thing - it was fairly late in the
     cycle...

   - some filesystems had managed to depend on lookup/lookup exclusion
     for *fs-internal* data structures in a way that would break if we
     relaxed the VFS exclusion.  Fixing hadn't been hard, fortunately.

   - core of that series - parallel lookup machinery, replacing
     ->i_mutex with rwsem, making lookup_slow() take it only shared.  At
     that point lookups happen in parallel; lookups on the same name
     wait for the in-progress one to be done with that dentry.

     Surprisingly little code, at that - almost all of it is in
     fs/dcache.c, with fs/namei.c changes limited to lookup_slow() -
     making it use the new primitive and actually switching to locking
     shared.

   - parallel readdir stuff - first of all, we provide the exclusion on
     per-struct file basis, same as we do for read() vs lseek() for
     regular files.  That takes care of most of the needed exclusion in
     readdir/readdir; however, these guys are trickier than lookups, so
     I went for switching them one-by-one.  To do that, a new method
     '->iterate_shared()' is added and filesystems are switched to it
     as they are either confirmed to be OK with shared lock on directory
     or fixed to be OK with that.  I hope to kill the original method
     come next cycle (almost all in-tree filesystems are switched
     already), but it's still not quite finished.

   - several filesystems get switched to parallel readdir.  The
     interesting part here is dealing with dcache preseeding by readdir;
     that needs minor adjustment to be safe with directory locked only
     shared.

     Most of the filesystems doing that got switched to in those
     commits.  Important exception: NFS.  Turns out that NFS folks, with
     their, er, insistence on VFS getting the fuck out of the way of the
     Smart Filesystem Code That Knows How And What To Lock(tm) have
     grown the locking of their own.  They had their own homegrown
     rwsem, with lookup/readdir/atomic_open being *writers* (sillyunlink
     is the reader there).  Of course, with VFS getting the fuck out of
     the way, as requested, the actual smarts of the smart filesystem
     code etc. had become exposed...

   - do_last/lookup_open/atomic_open cleanups.  As the result, open()
     without O_CREAT locks the directory only shared.  Including the
     ->atomic_open() case.  Backmerge from #for-linus in the middle of
     that - atomic_open() fix got brought in.

   - then comes NFS switch to saner (VFS-based ;-) locking, killing the
     homegrown "lookup and readdir are writers" kinda-sorta rwsem.  All
     exclusion for sillyunlink/lookup is done by the parallel lookups
     mechanism.  Exclusion between sillyunlink and rmdir is a real rwsem
     now - rmdir being the writer.

     Result: NFS lookups/readdirs/O_CREAT-less opens happen in parallel
     now.

   - the rest of the series consists of switching a lot of filesystems
     to parallel readdir; in a lot of cases ->llseek() gets simplified
     as well.  One backmerge in there (again, #for-linus - rockridge
     fix)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (74 commits)
  ext4: switch to ->iterate_shared()
  hfs: switch to ->iterate_shared()
  hfsplus: switch to ->iterate_shared()
  hostfs: switch to ->iterate_shared()
  hpfs: switch to ->iterate_shared()
  hpfs: handle allocation failures in hpfs_add_pos()
  gfs2: switch to ->iterate_shared()
  f2fs: switch to ->iterate_shared()
  afs: switch to ->iterate_shared()
  befs: switch to ->iterate_shared()
  befs: constify stuff a bit
  isofs: switch to ->iterate_shared()
  get_acorn_filename(): deobfuscate a bit
  btrfs: switch to ->iterate_shared()
  logfs: no need to lock directory in lseek
  switch ecryptfs to ->iterate_shared
  9p: switch to ->iterate_shared()
  fat: switch to ->iterate_shared()
  romfs, squashfs: switch to ->iterate_shared()
  more trivial ->iterate_shared conversions
  ...
2016-05-17 11:01:31 -07:00
Jiri Pirko
da4ed55165 switchdev: pass pointer to fib_info instead of copy
The problem is that fib_info->nh is [0] so the struct fib_info
allocation size depends on number of nexthops. If we just copy fib_info,
we do not copy the nexthops info and driver accesses memory which is not
ours.

Given the fact that fib4 does not defer operations and therefore it does
not need copy, just pass the pointer down to drivers as it was done
before.

Fixes: 850d0cbc91 ("switchdev: remove pointers from switchdev objects")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 13:58:49 -04:00
Linus Torvalds
ede40902cf Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "This update delivers:

   - Yet another interrupt chip diver (LPC32xx)
   - Core functions to handle partitioned per-cpu interrupts
   - Enhancements to the IPI core
   - Proper handling of irq type configuration
   - A large set of ARM GIC enhancements
   - The usual pile of small fixes, cleanups and enhancements"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
  irqchip/bcm2836: Use a more generic memory barrier call
  irqchip/bcm2836: Fix compiler warning on 64-bit build
  irqchip/bcm2836: Drop smp_set_ops on arm64 builds
  irqchip/gic: Add helper functions for GIC setup and teardown
  irqchip/gic: Store GIC configuration parameters
  irqchip/gic: Pass GIC pointer to save/restore functions
  irqchip/gic: Return an error if GIC initialisation fails
  irqchip/gic: Remove static irq_chip definition for eoimode1
  irqchip/gic: Don't initialise chip if mapping IO space fails
  irqchip/gic: WARN if setting the interrupt type for a PPI fails
  irqchip/gic: Don't unnecessarily write the IRQ configuration
  irqchip: Mask the non-type/sense bits when translating an IRQ
  genirq: Ensure IRQ descriptor is valid when setting-up the IRQ
  irqchip/gic-v3: Configure all interrupts as non-secure Group-1
  irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum
  irqchip/irq-alpine-msi: Don't use <asm-generic/msi.h>
  irqchip/mbigen: Checking for IS_ERR() instead of NULL
  irqchip/gic-v3: Remove inexistant register definition
  irqchip/gicv3-its: Don't allow devices whose ID is outside range
  irqchip: Add LPC32xx interrupt controller driver
  ...
2016-05-17 10:27:29 -07:00
Linus Torvalds
91e8d0cbc9 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "A rather small set of patches from the timer departement:

   - Some more y2038 work
   - Yet another new clocksource driver
   - The usual set of small fixes, cleanups and enhancements"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/tegra: Remove unused suspend/resume code
  clockevents/driversi/mps2: add MPS2 Timer driver
  dt-bindings: document the MPS2 timer bindings
  clocksource/drivers/mtk_timer: Add __init attribute
  clockevents/drivers/dw_apb_timer: Implement ->set_state_oneshot_stopped()
  time: Introduce do_sys_settimeofday64()
  security: Introduce security_settime64()
  clocksource: Add missing include of of.h.
2016-05-17 09:49:28 -07:00
Linus Torvalds
2fe2edf85f Hao Qin reported an integer overflow possibility with signed and
unsigned numbers in the ring-buffer code.
 
   https://bugzilla.kernel.org/show_bug.cgi?id=118001
 
 At first I did not think this was too much of an issue, because the
 overflow would be caught later when either too much data was allocated
 or it would trigger RB_WARN_ON() which shuts down the ring buffer.
 
 But looking closer into it, I found that the right settings could bypass
 the checks and crash the kernel. Luckily, this is only accessible
 by root.
 
 The first fix is to convert all the variables into long, such that
 we don't get into issues between 32 bit variables being assigned 64 bit
 ones. This fixes the RB_WARN_ON() triggering.
 
 The next fix is to get rid of a duplicate DIV_ROUND_UP() that when called
 twice with the right value, can cause a kernel crash.
 
 The first DIV_ROUND_UP() is to normalize the input and it is checked
 against the minimum allowable value. But then DIV_ROUND_UP() is called
 again, which can overflow due to the (a + b - 1)/b, logic. The first
 called upped the value, the second can overflow (with the +b part).
 
 The second call to DIV_ROUND_UP() came in via a second change a while ago
 and the code is cleaned up to remove it.
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Merge tag 'trace-fixes-v4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing ring-buffer fixes from Steven Rostedt:
 "Hao Qin reported an integer overflow possibility with signed and
  unsigned numbers in the ring-buffer code.

    https://bugzilla.kernel.org/show_bug.cgi?id=118001

  At first I did not think this was too much of an issue, because the
  overflow would be caught later when either too much data was allocated
  or it would trigger RB_WARN_ON() which shuts down the ring buffer.

  But looking closer into it, I found that the right settings could
  bypass the checks and crash the kernel.  Luckily, this is only
  accessible by root.

  The first fix is to convert all the variables into long, such that we
  don't get into issues between 32 bit variables being assigned 64 bit
  ones.  This fixes the RB_WARN_ON() triggering.

  The next fix is to get rid of a duplicate DIV_ROUND_UP() that when
  called twice with the right value, can cause a kernel crash.

  The first DIV_ROUND_UP() is to normalize the input and it is checked
  against the minimum allowable value.  But then DIV_ROUND_UP() is
  called again, which can overflow due to the (a + b - 1)/b, logic.  The
  first called upped the value, the second can overflow (with the +b
  part).

  The second call to DIV_ROUND_UP() came in via a second change a while
  ago and the code is cleaned up to remove it"

* tag 'trace-fixes-v4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Prevent overflow of size in ring_buffer_resize()
  ring-buffer: Use long for nr_pages to avoid overflow failures
2016-05-17 09:42:58 -07:00
WANG Cong
dc327f8931 net_sched: close another race condition in tcf_mirred_release()
We saw the following extra refcount release on veth device:

  kernel: [7957821.463992] unregister_netdevice: waiting for mesos50284 to become free. Usage count = -1

Since we heavily use mirred action to redirect packets to veth, I think
this is caused by the following race condition:

CPU0:
tcf_mirred_release(): (in RCU callback)
	struct net_device *dev = rcu_dereference_protected(m->tcfm_dev, 1);

CPU1:
mirred_device_event():
        spin_lock_bh(&mirred_list_lock);
        list_for_each_entry(m, &mirred_list, tcfm_list) {
                if (rcu_access_pointer(m->tcfm_dev) == dev) {
                        dev_put(dev);
                        /* Note : no rcu grace period necessary, as
                         * net_device are already rcu protected.
                         */
                        RCU_INIT_POINTER(m->tcfm_dev, NULL);
                }
        }
        spin_unlock_bh(&mirred_list_lock);

CPU0:
tcf_mirred_release():
        spin_lock_bh(&mirred_list_lock);
        list_del(&m->tcfm_list);
        spin_unlock_bh(&mirred_list_lock);
        if (dev)               // <======== Stil refers to the old m->tcfm_dev
                dev_put(dev);  // <======== dev_put() is called on it again

The action init code path is good because it is impossible to modify
an action that is being removed.

So, fix this by moving everything under the spinlock.

Fixes: 2ee22a90c7 ("net_sched: act_mirred: remove spinlock in fast path")
Fixes: 6bd00b8506 ("act_mirred: fix a race condition on mirred_list")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:40:28 -04:00
Richard Alpe
03aaaa9b94 tipc: fix nametable publication field in nl compat
The publication field of the old netlink API should contain the
publication key and not the publication reference.

Fixes: 44a8ae94fd (tipc: convert legacy nl name table dump to nl compat)
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:34:02 -04:00
Linus Torvalds
9a07a79684 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "API:

   - Crypto self tests can now be disabled at boot/run time.
   - Add async support to algif_aead.

  Algorithms:

   - A large number of fixes to MPI from Nicolai Stange.
   - Performance improvement for HMAC DRBG.

  Drivers:

   - Use generic crypto engine in omap-des.
   - Merge ppc4xx-rng and crypto4xx drivers.
   - Fix lockups in sun4i-ss driver by disabling IRQs.
   - Add DMA engine support to ccp.
   - Reenable talitos hash algorithms.
   - Add support for Hisilicon SoC RNG.
   - Add basic crypto driver for the MXC SCC.

  Others:

   - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits)
  crypto: qat - change the adf_ctl_stop_devices to void
  crypto: caam - fix caam_jr_alloc() ret code
  crypto: vmx - comply with ABIs that specify vrsave as reserved.
  crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime.
  crypto: ccp - constify ccp_actions structure
  crypto: marvell/cesa - Use dma_pool_zalloc
  crypto: qat - make adf_vf_isr.c dependant on IOV config
  crypto: qat - Fix typo in comments
  lib: asn1_decoder - add MODULE_LICENSE("GPL")
  crypto: omap-sham - Use dma_request_chan() for requesting DMA channel
  crypto: omap-des - Use dma_request_chan() for requesting DMA channel
  crypto: omap-aes - Use dma_request_chan() for requesting DMA channel
  crypto: omap-des - Integrate with the crypto engine framework
  crypto: s5p-sss - fix incorrect usage of scatterlists api
  crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks
  crypto: s5p-sss - Use common BIT macro
  crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register()
  crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init()
  crypto: talitos - fix ahash algorithms registration
  crypto: ccp - Ensure all dependencies are specified
  ...
2016-05-17 09:33:39 -07:00
Harvey Hunt
3274940bd3 drivers: net: Don't print unpopulated net_device name
For ethernet devices, net_device.name will be eth%d before
register_netdev() is called. Don't print the net_device name until
the format string is replaced.

Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Cc: Marcel Ziswiler <marcel@ziswiler.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Barry Song <Baohua.Song@csr.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:30:19 -04:00
Sudarsana Reddy Kalluru
39651abd28 qed: add support for dcbx.
This patch adds the necessary driver support for Management Firmware to
configure the device/firmware with the dcbx results. Management Firmware
is responsible for communicating the DCBX and driving the negotiation,
but the driver has responsibility of receiving async notification and
configuring the results in hw/fw. This patch also adds the dcbx support for
future protocols (e.g., FCoE) as preparation to their imminent submission.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:29:34 -04:00
Geert Uytterhoeven
ccf928249c ravb: Add missing free_irq() calls to ravb_close()
When reopening the network device on ra7795/salvator-x, e.g. after a
DHCP timeout:

    IP-Config: Reopening network devices...
    genirq: Flags mismatch irq 139. 00000000 (eth0:ch0:rx_be) vs. 00000000 (ravb e6800000.ethernet eth0: cannot request IRQ eth0:ch0:rx_be
    IP-Config: Failed to open eth0
    IP-Config: No network devices available

The "mismatch" is due to requesting an IRQ that is already in use,
while IRQF_PROBE_SHARED wasn't set.

However, the real cause is that ravb_close() doesn't release any of the
R-Car Gen3-specific secondary IRQs.

Add the missing free_irq() calls to fix this.

Fixes: f51bdc236b ("ravb: Add dma queue interrupt support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:26:56 -04:00
Dan Carpenter
f82731b454 qed: Remove a stray tab
This line was indented more than it should be.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:23:37 -04:00
David S. Miller
2cc632dbc7 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2016-05-16

This series contains 2 fixes to ixgbe only.

Emil fixes transmit hangs when enabling SRIOV by swapping the parameters
in GENMASK in order to generate the correct mask.

Alex fixes his previous patch b83e30104b ("ixgbe/ixgbevf: Add support
for GSO partial") where he somehow transposed the location of setting
the VLAN features in netdev->features and the configuration of the
vlan_features.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-17 12:18:27 -04:00
Al Viro
0e0162bb8c Merge branch 'ovl-fixes' into for-linus
Backmerge to resolve a conflict in ovl_lookup_real();
"ovl_lookup_real(): use lookup_one_len_unlocked()" instead,
but it was too late in the cycle to rebase.
2016-05-17 02:17:59 -04:00
Linus Torvalds
16490980e3 Generic device properties framework update for v4.7-rc1
Just one commit reworking the handling of built-in properties
 initialization and updating a few drivers in accordance with the
 core framework changes.
 
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Merge tag 'device-properties-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties update from Rafael Wysocki:
 "Generic device properties framework update.

  Just one commit reworking the handling of built-in properties
  initialization and updating a few drivers in accordance with the core
  framework changes"

* tag 'device-properties-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: don't bother the drivers with struct property_set
2016-05-16 19:51:04 -07:00
Linus Torvalds
46c1345062 ACPI material for v4.7-rc1
- In-kernel ACPICA code update to the upstream release 20160422
    adding support for ACPI 6.1 along with some previously missing
    bits of ACPI 6.0 support, making a fair amount of fixes and
    cleanups and reducing divergences between the upstream ACPICA
    and the in-kernel code (Bob Moore, Lv Zheng, Al Stone, Aleksey
    Makarov, Will Miles).
 
  - ACPI Generic Event Device (GED) support and a fix for it (Sinan Kaya,
    Paul Gortmaker).
 
  - INT3406 thermal driver for display thermal management and ACPI
    backlight support code reorganization related to it (Aaron Lu,
    Arnd Bergmann).
 
  - Support for exporting the value returned by the _HRV (hardware
    revision) ACPI object via sysfs (Betty Dall).
 
  - Removal of the EXPERT dependency for ACPI on ARM64 (Mark Brown).
 
  - Rework of the handling of ACPI _OSI mechanism allowing the
    _OSI("Darwin") support to be overridden from the kernel command
    line among other things (Lv Zheng, Chen Yu).
 
  - Rework of the ACPI tables override mechanism to prepare it for
    the introduction of overlays support going forward (Lv Zheng,
    Rafael Wysocki).
 
  - Fixes related to the ECDT support and module-level execution
    of AML (Lv Zheng).
 
  - ACPI PCI interrupts management update to make it work better on
    ARM64 mostly (Sinan Kaya).
 
  - ACPI SRAT handling update to make the code process all entires
    in the table order regardless of the entry type (Lukasz Anaczkowski).
 
  - EFI power off support for full-hardware ACPI platforms that don't
    support ACPI S5 (Chen Yu).
 
  - Fixes and cleanups related to the ACPI core's sysfs interface
    (Dan Carpenter, Betty Dall).
 
  - acpi_dev_present() API rework to reduce possible confusion related
    to it (Lukas Wunner).
 
  - Removal of CLK_IS_ROOT from two ACPI drivers (Stephen Boyd).
 
 /
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Merge tag 'acpi-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "The new features here are ACPI 6.1 support (and some previously
  missing bits of ACPI 6.0 support) in ACPICA and two new drivers, a
  driver for the ACPI Generic Event Device (GED) feature introduced by
  ACPI 6.1 and the INT3406 thermal driver for display thermal
  management.  Also the value returned by the _HRV (hardware revision)
  ACPI object will be exported to user space via sysfs now.

  In addition to that, ACPI on ARM64 will not depend on EXPERT any more.

  The rest is mostly fixes and cleanups and some code reorganization.

  Specifics:

   - In-kernel ACPICA code update to the upstream release 20160422
     adding support for ACPI 6.1 along with some previously missing bits
     of ACPI 6.0 support, making a fair amount of fixes and cleanups and
     reducing divergences between the upstream ACPICA and the in-kernel
     code (Bob Moore, Lv Zheng, Al Stone, Aleksey Makarov, Will Miles)

   - ACPI Generic Event Device (GED) support and a fix for it (Sinan
     Kaya, Paul Gortmaker)

   - INT3406 thermal driver for display thermal management and ACPI
     backlight support code reorganization related to it (Aaron Lu, Arnd
     Bergmann)

   - Support for exporting the value returned by the _HRV (hardware
     revision) ACPI object via sysfs (Betty Dall)

   - Removal of the EXPERT dependency for ACPI on ARM64 (Mark Brown)

   - Rework of the handling of ACPI _OSI mechanism allowing the
     _OSI("Darwin") support to be overridden from the kernel command
     line among other things (Lv Zheng, Chen Yu)

   - Rework of the ACPI tables override mechanism to prepare it for the
     introduction of overlays support going forward (Lv Zheng, Rafael
     Wysocki)

   - Fixes related to the ECDT support and module-level execution of AML
     (Lv Zheng)

   - ACPI PCI interrupts management update to make it work better on
     ARM64 mostly (Sinan Kaya)

   - ACPI SRAT handling update to make the code process all entires in
     the table order regardless of the entry type (Lukasz Anaczkowski)

   - EFI power off support for full-hardware ACPI platforms that don't
     support ACPI S5 (Chen Yu)

   - Fixes and cleanups related to the ACPI core's sysfs interface (Dan
     Carpenter, Betty Dall)

   - acpi_dev_present() API rework to reduce possible confusion related
     to it (Lukas Wunner)

   - Removal of CLK_IS_ROOT from two ACPI drivers (Stephen Boyd)"

* tag 'acpi-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (82 commits)
  ACPI / video: mark acpi_video_get_levels() inline
  Thermal / ACPI / video: add INT3406 thermal driver
  ACPI / GED: make evged.c explicitly non-modular
  ACPI / tables: Fix DSDT override mechanism
  ACPI / sysfs: fix error code in get_status()
  ACPICA: Update version to 20160422
  ACPICA: Move all ASCII utilities to a common file
  ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write()
  ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support in acpi_hw_read()
  ACPICA: Executer: Introduce a set of macros to handle bit width mask generation
  ACPICA: Hardware: Add optimized access bit width support
  ACPICA: Utilities: Add ACPI_IS_ALIGNED() macro
  ACPICA: Renamed some #defined flag constants for clarity
  ACPICA: ACPI 6.0, tools/iasl: Add support for new resource descriptors
  ACPICA: ACPI 6.0: Update _BIX support for new package element
  ACPICA: ACPI 6.1: Support for new PCCT subtable
  ACPICA: Refactor evaluate_object to reduce nesting
  ACPICA: Divergence: remove unwanted spaces for typedef
  ACPI,PCI,IRQ: remove SCI penalize function
  ACPI,PCI,IRQ: remove redundant code in acpi_irq_penalty_init()
  ..
2016-05-16 19:41:41 -07:00
Philippe Reynes
b172542373 net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:20:06 -04:00
Philippe Reynes
a54d20f85a net: ethernet: fec-mpc52xx: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:20:06 -04:00
Daniel Borkmann
9295c03472 bpf, doc: fix typo on bpf_asm descriptions
Fix description of some of the bpf_asm tool related jump instructions
and generally move them to format A <op> k.

Reported-by: Sebastian Amend <sebastian.amend@googlemail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:19:15 -04:00
Ezequiel Garcia
a8df35d458 stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
Commit f748be531d ("stmmac: support new GMAC4") reverted a previous fix
by mistake. This commit re-applies said fix:

  commit dec2165ff3
  Author: Sonic Zhang <sonic.zhang@analog.com>
  Date:   Thu Jan 22 14:55:57 2015 +0800
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set

  Clear the TX COE bit when force_thresh_dma_mode is set even hardware
  dma capability says support.

  Tested on BF609.

  Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
  Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  Signed-off-by: David S. Miller <davem@davemloft.net>

Tested on LPC4350 Hitex board.

Fixes: f748be531d ("stmmac: support new GMAC4")
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Tested-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:17:45 -04:00
Linus Torvalds
d57d394319 Power management material for v4.7-rc1
- New cpufreq "schedutil" governor (making decisions based on CPU
    utilization information provided by the scheduler and capable of
    switching CPU frequencies right away if the underlying driver
    supports that) and support for fast frequency switching in the
    acpi-cpufreq driver (Rafael Wysocki).
 
  - Consolidation of CPU frequency management on ARM platforms allowing
    them to get rid of some platform-specific boilerplate code if they
    are going to use the cpufreq-dt driver (Viresh Kumar, Finley Xiao,
    Marc Gonzalez).
 
  - Support for ACPI _PPC and CPU frequency limits in the intel_pstate
    driver (Srinivas Pandruvada).
 
  - Fixes and cleanups in the cpufreq core and generic governor code
    (Rafael Wysocki, Sai Gurrappadi).
 
  - intel_pstate driver optimizations and cleanups (Rafael Wysocki,
    Philippe Longepe, Chen Yu, Joe Perches).
 
  - cpufreq powernv driver fixes and cleanups (Akshay Adiga, Shilpasri
    Bhat).
 
  - cpufreq qoriq driver fixes and cleanups (Jia Hongtao).
 
  - ACPI cpufreq driver cleanups (Viresh Kumar).
 
  - Assorted cpufreq driver updates (Ashwin Chaugule, Geliang Tang,
    Javier Martinez Canillas, Paul Gortmaker, Sudeep Holla).
 
  - Assorted cpufreq fixes and cleanups (Joe Perches, Arnd Bergmann).
 
  - Fixes and cleanups in the OPP (Operating Performance Points)
    framework, mostly related to OPP sharing, and reorganization of
    OF-dependent code in it (Viresh Kumar, Arnd Bergmann, Sudeep Holla).
 
  - New "passive" governor for devfreq (for SoC subsystems that will
    rely on someone else for the management of their power resources)
    and consolidation of devfreq support for Exynos platforms, coding
    style and typo fixes for devfreq (Chanwoo Choi, MyungJoo Ham).
 
  - PM core fixes and cleanups, mostly to make it work better with the
    generic power domains (genpd) framework, and updates for that
    framework (Ulf Hansson, Thierry Reding, Colin Ian King).
 
  - Intel Broxton support for the intel_idle driver (Len Brown).
 
  - cpuidle core optimization and fix (Daniel Lezcano, Dave Gerlach).
 
  - ARM cpuidle cleanups (Jisheng Zhang).
 
  - Intel Kabylake support for the RAPL power capping driver (Jacob Pan).
 
  - AVS (Adaptive Voltage Switching) rockchip-io driver update (Heiko
    Stuebner).
 
  - Updates for the cpupower tool (Arjun Sreedharan, Colin Ian King,
    Mattia Dongili, Thomas Renninger).
 
 /
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Merge tag 'pm-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The majority of changes go into the cpufreq subsystem this time.

  To me, quite obviously, the biggest ticket item is the new "schedutil"
  governor.  Interestingly enough, it's the first new cpufreq governor
  since the beginning of the git era (except for some out-of-the-tree
  ones).

  There are two main differences between it and the existing governors.
  First, it uses the information provided by the scheduler directly for
  making its decisions, so it doesn't have to track anything by itself.
  Second, it can invoke drivers (supporting that feature) to adjust CPU
  performance right away without having to spawn work items to be
  executed in process context or similar.  Currently, the acpi-cpufreq
  driver is the only one supporting that mode of operation, but then it
  is used on a large number of systems.

  The "schedutil" governor as included here is very simple and mostly
  regarded as a foundation for future work on the integration of the
  scheduler with CPU power management (in fact, there is work in
  progress on top of it already).  Nevertheless it works and the
  preliminary results obtained with it are encouraging.

  There also is some consolidation of CPU frequency management for ARM
  platforms that can add their machine IDs the the new stub dt-platdev
  driver now and that will take care of creating the requisite platform
  device for cpufreq-dt, so it is not necessary to do that in platform
  code any more.  Several ARM platforms are switched over to using this
  generic mechanism.

  In addition to that, the intel_pstate driver is now going to respect
  CPU frequency limits set by the platform firmware (or a BMC) and
  provided via the ACPI _PPC object.

  The devfreq subsystem is getting a new "passive" governor for SoCs
  subsystems that will depend on somebody else to manage their voltage
  rails and its support for Samsung Exynos SoCs is consolidated.

  The rest is support for new hardware (Intel Broxton support in
  intel_idle for one example), bug fixes, optimizations and cleanups in
  a number of places.

  Specifics:

   - New cpufreq "schedutil" governor (making decisions based on CPU
     utilization information provided by the scheduler and capable of
     switching CPU frequencies right away if the underlying driver
     supports that) and support for fast frequency switching in the
     acpi-cpufreq driver (Rafael Wysocki)

   - Consolidation of CPU frequency management on ARM platforms allowing
     them to get rid of some platform-specific boilerplate code if they
     are going to use the cpufreq-dt driver (Viresh Kumar, Finley Xiao,
     Marc Gonzalez)

   - Support for ACPI _PPC and CPU frequency limits in the intel_pstate
     driver (Srinivas Pandruvada)

   - Fixes and cleanups in the cpufreq core and generic governor code
     (Rafael Wysocki, Sai Gurrappadi)

   - intel_pstate driver optimizations and cleanups (Rafael Wysocki,
     Philippe Longepe, Chen Yu, Joe Perches)

   - cpufreq powernv driver fixes and cleanups (Akshay Adiga, Shilpasri
     Bhat)

   - cpufreq qoriq driver fixes and cleanups (Jia Hongtao)

   - ACPI cpufreq driver cleanups (Viresh Kumar)

   - Assorted cpufreq driver updates (Ashwin Chaugule, Geliang Tang,
     Javier Martinez Canillas, Paul Gortmaker, Sudeep Holla)

   - Assorted cpufreq fixes and cleanups (Joe Perches, Arnd Bergmann)

   - Fixes and cleanups in the OPP (Operating Performance Points)
     framework, mostly related to OPP sharing, and reorganization of
     OF-dependent code in it (Viresh Kumar, Arnd Bergmann, Sudeep Holla)

   - New "passive" governor for devfreq (for SoC subsystems that will
     rely on someone else for the management of their power resources)
     and consolidation of devfreq support for Exynos platforms, coding
     style and typo fixes for devfreq (Chanwoo Choi, MyungJoo Ham)

   - PM core fixes and cleanups, mostly to make it work better with the
     generic power domains (genpd) framework, and updates for that
     framework (Ulf Hansson, Thierry Reding, Colin Ian King)

   - Intel Broxton support for the intel_idle driver (Len Brown)

   - cpuidle core optimization and fix (Daniel Lezcano, Dave Gerlach)

   - ARM cpuidle cleanups (Jisheng Zhang)

   - Intel Kabylake support for the RAPL power capping driver (Jacob
     Pan)

   - AVS (Adaptive Voltage Switching) rockchip-io driver update (Heiko
     Stuebner)

   - Updates for the cpupower tool (Arjun Sreedharan, Colin Ian King,
     Mattia Dongili, Thomas Renninger)"

* tag 'pm-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (112 commits)
  intel_pstate: Clean up get_target_pstate_use_performance()
  intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
  intel_pstate: Clarify average performance computation
  intel_pstate: Avoid unnecessary synchronize_sched() during initialization
  cpufreq: schedutil: Make default depend on CONFIG_SMP
  cpufreq: powernv: del_timer_sync when global and local pstate are equal
  cpufreq: powernv: Move smp_call_function_any() out of irq safe block
  intel_pstate: Clean up intel_pstate_get()
  cpufreq: schedutil: Make it depend on CONFIG_SMP
  cpufreq: governor: Fix handling of special cases in dbs_update()
  PM / OPP: Move CONFIG_OF dependent code in a separate file
  cpufreq: intel_pstate: Ignore _PPC processing under HWP
  cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
  PM / OPP: add non-OF versions of dev_pm_opp_{cpumask_, }remove_table
  cpufreq: tango: Use generic platdev driver
  PM / OPP: pass cpumask by reference
  cpufreq: Fix GOV_LIMITS handling for the userspace governor
  cpupower: fix potential memory leak
  PM / devfreq: style/typo fixes
  PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus
  ..
2016-05-16 19:17:22 -07:00
Philippe Reynes
73d9011c1f net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:16:32 -04:00
Philippe Reynes
c1c511a275 net: ethernet: fs-enet: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-16 22:16:32 -04:00