The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Declare 'enum RMCR_BIT' containing the single member for the RMCR.RNC bit and
replace bare numbers in the driver by  this mnemonic.
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Conflicts:
	drivers/net/usb/qmi_wwan.c
	include/net/dst.h

Trivial merge conflicts, both were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently net_secret_init does not get inlined, so we always have a call
to net_secret_init even in the fast path.

Let's specify net_secret_init as __always_inline so we have the nop in
the fast-path without the call to net_secret_init and the unlikely path
at the epilogue of the function.

jump_labels handle the inlining correctly.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2e685cad (tcp_memcontrol: Kill struct tcp_memcontrol) falsly modified
the access to memory_pressure of sk->sk_prot->memory_pressure. The patch
did modify the memory_pressure-field of struct cg_proto, but not the one
of struct proto.

So, the access to sk_prot->memory_pressure should not be changed.
Acked-by: Eric Dumazet <edumazet@google.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull s390 fixes from Martin Schwidefsky:
 "Several last minute bug fixes.

  Two of them are on the larger side for rc7, the dasd format patch for
  older storage devices and the store-clock-fast patch where we have
  been to optimistic with an optimization"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/time: correct use of store clock fast
  s390/vmlogrdr: fix array access in vmlogrdr_open()
  s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32()
  s390/dasd: check for availability of prefix command during format
  s390/mm,kvm: fix software dirty bits vs. kvm for old machines

Pull thermal management fixes from Zhang Rui:
 "These includes several commits that are necessary to properly fix
  regression for TMU test MUX address setting after reset, for exynos
  thermal driver.

  Specifics:

   - fix a regression that the removal of setting a certain field at TMU
     configuration setting results in immediately shutdown after reset
     on Exynos4412 SoC.

   - revert a patch which tries to link the thermal_zone device and its
     hwmon node but breaks libsensors.

   - fix a deadlock/lockdep warning issue in x86_pkg_temp thermal
     driver, which can be reproduced on a buggy platform only.

   - fix ti-soc-thermal driver to fall back on bandgap reading when
     reading from PCB temperature sensor fails"

* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  Revert "drivers: thermal: parent virtual hwmon with thermal zone"
  drivers: thermal: allow ti-soc-thermal run without pcb zone
  thermal: exynos: Provide initial setting for TMU's test MUX address at Exynos4412
  thermal: exynos: Provide separate TMU data for Exynos4412
  thermal: exynos: Remove check for thermal device pointer at exynos_report_trigger()
  Thermal: x86_pkg_temp: change spin lock

Fix build error in asus_wmi.c when ASUS_WMI=y and ACPI_VIDEO=m
by preventing that combination.

  drivers/built-in.o: In function `asus_wmi_probe':
  asus-wmi.c:(.text+0x65ddb4): undefined reference to `acpi_video_unregister'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull media fixes from Mauro Carvalho Chehab:
 - Compilation fixes for GCC < 4.4.6
 - one Kbuild dependency select fix (selecting videobuf on msi3101)
 - driver fixes on tda10071, e4000, msi3101, soc_camera, s5p-jpeg,
   saa7134 and adv7511
 - some device quirks needed to make them work properly
 - some videobuf2 core regression fixes for some features used only on
   embedded drivers

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] saa7134: Fix crash when device is closed before streamoff
  [media] adv7511: fix error return code in adv7511_probe()
  [media] ths8200: fix compilation with GCC < 4.4.6
  [media] ad9389b: fix compilation with GCC < 4.4.6
  [media] adv7511: fix compilation with GCC < 4.4.6
  [media] adv7842: fix compilation with GCC < 4.4.6
  [media] s5p-jpeg: Initialize vfd_decoder->vfl_dir field
  [media] videobuf2-dc: Fix support for mappings without struct page in userptr mode
  [media] vb2: Allow queuing OUTPUT buffers with zeroed 'bytesused'
  [media] mx3-camera: locking cleanup in mx3_videobuf_queue()
  [media] sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()
  [media] tda10071: change firmware download condition
  [media] msi3101: correct max videobuf2 alloc
  [media] Add HCL T12Rg-H to STK webcam upside-down table
  [media] msi3101: Kconfig select VIDEOBUF2_VMALLOC
  [media] msi3101: msi3101_ioctl_ops can be static
  [media] e4000: fix PLL calc bug on 32-bit arch
  [media] uvcvideo: quirk PROBE_DEF for Microsoft Lifecam NX-3000
  [media] uvcvideo: quirk PROBE_DEF for Dell SP2008WFP monitor

Pull infiniband bugfix from Roland Dreier:
 "Disable not-quite-ready userspace ABI for IB flow steering"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Temporarily disable create_flow/destroy_flow uverbs

Pull networking fixes from David Miller:
 "Sorry I let so much accumulate, I was in Buffalo and wanted a few
  things to cook in my tree for a while before sending to you.  Anyways,
  it's a lot of little things as usual at this stage in the game"

 1) Make bonding MAINTAINERS entry reflect reality, from Andy
    Gospodarek.

 2) Fix accidental sock_put() on timewait mini sockets, from Eric
    Dumazet.

 3) Fix crashes in l2tp due to mis-handling of ipv4 mapped ipv6
    addresses, from François CACHEREUL.

 4) Fix heap overflow in __audit_sockaddr(), from the eagle eyed Dan
    Carpenter.

 5) tcp_shifted_skb() doesn't take handle FINs properly, from Eric
    Dumazet.

 6) SFC driver bug fixes from Ben Hutchings.

 7) Fix TX packet scheduling wedge after channel change in ath9k driver,
    from Felix Fietkau.

 8) Fix user after free in BPF JIT code, from Alexei Starovoitov.

 9) Source address selection test is reversed in
    __ip_route_output_key(), fix from Jiri Benc.

10) VLAN and CAN layer mis-size netlink attributes, from Marc
    Kleine-Budde.

11) Fix permission checks in sysctls to use current_euid() instead of
    current_uid().  From Eric W Biederman.

12) IPSEC policies can go away while a timer is still pending for them,
    add appropriate ref-counting to fix, from Steffen Klassert.

13) Fix mis-programming of FDR and RMCR registers on R8A7740 sh_eth
    chips, from Nguyen Hong Ky and Simon Horman.

14) MLX4 forgets to DMA unmap pages on RX, fix from Amir Vadai.

15) IPV6 GRE tunnel MTU upper limit is miscalculated, from Oussama
    Ghorbel.

16) Fix typo in fq_change(), we were assigning "initial quantum" to
    "quantum".  From Eric Dumazet.

17) Set a more appropriate sk_pacing_rate for non-TCP sockets, otherwise
    FQ packet scheduler does not pace those flows properly.  Also from
    Eric Dumazet.

18) rtlwifi miscalculates packet pointers, from Mark Cave-Ayland.

19) l2tp_xmit_skb() can be called from process context, not just softirq
    context, so we must always make sure to BH disable around it.  From
    Eric Dumazet.

20) On qdisc reset, we forget to purge the RB tree of SKBs in netem
    packet scheduler.  From Stephen Hemminger.

21) Fix info leak in farsync WAN driver ioctl() handler, from Dan
    Carpenter and Salva Peiró.

22) Fix PHY reset and other issues in dm9000 driver, from Nikita
    Kiryanov and Michael Abbott.

23) When hardware can do SCTP crc32 checksums, we accidently don't
    disable the csum offload when IPSEC transformations have been
    applied.  From Fan Du and Vlad Yasevich.

24) Tail loss probing in TCP leaves the socket in the wrong congestion
    avoidance state.  From Yuchung Cheng.

25) In CPSW driver, enable NAPI before interrupts are turned on, from
    Markus Pargmann.

26) Integer underflow and dual-assignment in YAM hamradio driver, from
    Dan Carpenter.

27) If we are going to mangle a packet in tcp_set_skb_tso_segs() we must
    unclone it.  This fixes various hard to track down crashes in
    drivers where the SKBs ->gso_segs was changing right from underneath
    the driver during TX queueing.  From Eric Dumazet.

28) Fix the handling of VLAN IDs, and in particular the special IDs 0
    and 4095, in the bridging layer.  From Toshiaki Makita.

29) Another info leak, this time in wanxl WAN driver, from Salva Peiró.

30) Fix race in socket credential passing, from Daniel Borkmann.

31) WHen NETLABEL is disabled, we don't validate CIPSO packets properly,
    from Seif Mazareeb.

32) Fix identification of fragmented frames in ipv4/ipv6 UDP
    Fragmentation Offload output paths, from Jiri Pirko.

33) Virtual Function fixes in bnx2x driver from Yuval Mintz and Ariel
    Elior.

34) When we removed the explicit neighbour pointer from ipv6 routes a
    slight regression was introduced for users such as IPVS, xt_TEE, and
    raw sockets.  We mix up the users requested destination address with
    the routes assigned nexthop/gateway.  From Julian Anastasov and
    Simon Horman.

35) Fix stack overruns in rt6_probe(), the issue is that can end up
    doing two full packet xmit paths at the same time when emitting
    neighbour discovery messages.  From Hannes Frederic Sowa.

36) davinci_emac driver doesn't handle IFF_ALLMULTI correctly, from
    Mariusz Ceier.

37) Make sure to set TCP sk_pacing_rate after the first legitimate RTT
    sample, from Neal Cardwell.

38) Wrong netlink attribute passed to xfrm_replay_verify_len(), from
    Steffen Klassert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (152 commits)
  ax88179_178a: Add VID:DID for Samsung USB Ethernet Adapter
  ax88179_178a: Correct the RX error definition in RX header
  Revert "bridge: only expire the mdb entry when query is received"
  tcp: initialize passive-side sk_pacing_rate after 3WHS
  davinci_emac.c: Fix IFF_ALLMULTI setup
  mac802154: correct a typo in ieee802154_alloc_device() prototype
  ipv6: probe routes asynchronous in rt6_probe
  netfilter: nf_conntrack: fix rt6i_gateway checks for H.323 helper
  ipv6: fill rt6i_gateway with nexthop address
  ipv6: always prefer rt6i_gateway if present
  bnx2x: Set NETIF_F_HIGHDMA unconditionally
  bnx2x: Don't pretend during register dump
  bnx2x: Lock DMAE when used by statistic flow
  bnx2x: Prevent null pointer dereference on error flow
  bnx2x: Fix config when SR-IOV and iSCSI are enabled
  bnx2x: Fix Coalescing configuration
  bnx2x: Unlock VF-PF channel on MAC/VLAN config error
  bnx2x: Prevent an illegal pointer dereference during panic
  bnx2x: Fix Maximum CoS estimation for VFs
  drivers: net: cpsw: fix kernel warn during iperf test with interrupt pacing
  ...

After the commit below attempting to create macvlan devices was
resulting in ENOENT errors,

# ip link add link p3p2 type macvlan
RTNETLINK answers: Invalid argument

This happens because netdev_upper_dev_link() is called before
register_netdevice() in the macvlan code. Through a call chain
this results in a call to __netdev_adjacent_dev_insert() and
finally a sysfs_create_link(). This requires the kobject of
the macvlan to be registered which is done in register_netdevice().
If there is no kobject which is the case here the ENOENT error
is seen on the command line.

To resolve this move the netdev_upper_dev_link() call below
the register_netdevice() call. This aligns with vlan driver
flow.

Regression introduced here,

commit 5831d66e
Author: Veaceslav Falico <vfalico@redhat.com>
Date:   Wed Sep 25 09:20:32 2013 +0200

    net: create sysfs symlinks for neighbour devices

CC: Veaceslav Falico <vfalico@redhat.com>
CC: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

As Jiri noted, currently we first do all bonding-specific initialization
(specifically - bond_select_active_slave(bond)) before we actually attach
the slave (so that it becomes visible through bond_for_each_slave() and
friends). This might result in bond_select_active_slave() not seeing the
first/new slave and, thus, not actually selecting an active slave.

Fix this by moving all the bond-related init part after we've actually
completely initialized and linked (via bond_master_upper_dev_link()) the
new slave.

Also, remove the bond_(de/a)ttach_slave(), it's useless to have functions
to ++/-- one int.

After this we have all the initialization of the new slave *before*
linking, and all the stuff that needs to be done on bonding *after* it. It
has also a bonus effect - we can remove the locking on the new slave init
completely, and only use it for bond_select_active_slave().
Reported-by: Jiri Pirko <jiri@resnulli.us>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Ding Tianhong@huawei.com
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to i40e only.

Jesse provides 6 patches against i40e.  First is a patch to reduce
CPU utilization by reducing read-flush to read in the hot path.  Next
couple of patches resolve coverity issues reported by Hannes Frederic
Sowa <hannes@stressinduktion.org>.  Then Jesse refactored i40e to cleanup
functions which used cpu_to_xxx(foo) which caused a lot of line wrapping.

Mitch provides 2 i40e patches.  First fixes a panic when tx_rings[0]
are not allocated, his second patch corrects a math error when
assigning MSI-X vectors to VFs.  The vectors-per-vf value reported
by the hardware already conveniently reports one less than the actual
value.

Shannon provides 5 patches against i40e.  His first patch corrects a
number of little bugs in the error handling of irq setup, most of
which ended up panicing the kernel.  Next he fixes the overactive
IRQ issue seen in testing and allows the use of the legacy interrupt.
Shannon then provides a cleanup of the arguments declared at the
beginning of each function.  Then he provides a patch to make sure
that there are really rings and queues before trying to dump
information in them.  Lastly he simplifies the code by using an
already existing variable.

Catherine provides an i40e patch to bump the version.

v2:
 - Remove unneeded parenthesis in patch 3 based on feedback from
   Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
 - Fix patch description for patch 11 based on feedback from
   Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Add VID:DID for Samsung USB Ethernet Adapter.
Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>

Correct the definition of AX_RXHDR_CRC_ERR and
AX_RXHDR_DROP_ERR. They are BIT29 and BIT31 in pkt_hdr
seperately.
Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>

While this commit was a good attempt to fix issues occuring when no
multicast querier is present, this commit still has two more issues:

1) There are cases where mdb entries do not expire even if there is a
querier present. The bridge will unnecessarily continue flooding
multicast packets on the according ports.

2) Never removing an mdb entry could be exploited for a Denial of
Service by an attacker on the local link, slowly, but steadily eating up
all memory.

Actually, this commit became obsolete with
"bridge: disable snooping if there is no querier" (b00589af)
which included fixes for a few more cases.

Therefore reverting the following commits (the commit stated in the
commit message plus three of its follow up fixes):

====================
Revert "bridge: update mdb expiration timer upon reports."
This reverts commit f144febd.
Revert "bridge: do not call setup_timer() multiple times"
This reverts commit 1faabf2a.
Revert "bridge: fix some kernel warning in multicast timer"
This reverts commit c7e8e8a8.
Revert "bridge: only expire the mdb entry when query is received"
This reverts commit 9f00b2e7.
====================

CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Reviewed-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

What sk_reset_txq() does is just calls function sk_tx_queue_reset(),
and sk_reset_txq() is used only in sock.h, by dst_negative_advice().
Let dst_negative_advice() calls sk_tx_queue_reset() directly so we
can remove unneeded sk_reset_txq().
Signed-off-by: ZHAO Gang <gamerh2o@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Update the driver version.
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Simplify code by using an already existing variable.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Make sure there really are rings and queues before trying to dump
information in them.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

This is a cleanup of the local variables declared at the beginning
of each function.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Fix the overactive irq issue seen in testing and allow use of
the legacy interrupt.
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

This function did a lot of unnecessary cpu_to_xxx(foo) and making it
worse, each of these calls caused a lot of line wrapping.

Fix look and feel via a refactor of this function.  No functional
changes.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

This is a fix for an issue reported by coverity, reported
by Hannes Frederic Sowa.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

This is a fix for an issue reported by coverity, reported by
Hannes Frederic Sowa.

I'm unable to test if this patch actually fixes the coverity
reported issue, feedback is welcome.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

This issue was identified by the coverity checker where we were
not checking the upper limit on reads, reported by Hannes
Frederic Sowa.

Implement more specific limits on reads (min 1k, max 4k)
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

debugfs fixes for issues found by coverity.

This issue was identified by the coverity checker, reported by Hannes Frederic
Sowa.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

There were a number of little bugs in the error handling of irq setup, most of
which ended up panicing the kernel, and are addressed by this patch, along with
a couple formatting issues.

Legacy interrupts (including MSI) are used only in the case of failure to
allocate MSI-X interrupts.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Correct math error when assigning MSI-X vectors to VFs. The vectors-per-vf
value reported by the hardware already conveniently reports one less than the
actual value.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Not all VSIs have rings! Check to see if rings were actually allocated before
freeing them.

This prevents a panic when tx_rings[0] is not allocated.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Hot path doesn't need read-flush after interrupt enable, and this
flush really causes a lot of extra cpu utilization.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Do not touch keyboard backlight unless explicitly passed a module
parameter.  In this way we won't make wrong assumptions about what are
good default values since they actually are different from model to
model.

The only side effect is that we won't know what is the current value
until set via the sysfs attributes.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Move kernel-doc notation to immediately before its function to eliminate
kernel-doc warnings introduced by commit db14fc3a ("vfs: add
d_walk()")

  Warning(fs/dcache.c:1343): No description found for parameter 'data'
  Warning(fs/dcache.c:1343): No description found for parameter 'dentry'
  Warning(fs/dcache.c:1343): Excess function parameter 'parent' description in 'check_mount'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add @path parameter to fix kernel-doc warning.
Also fix a spello/typo.

  Warning(fs/namei.c:2304): No description found for parameter 'path'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>