Commit Graph

635412 Commits

Author SHA1 Message Date
Bart Van Assche
4323e65b79 sbp-target: Add an #include directive
usleep_range() is called from sbp_target.c. Hence include header
file <linux/delay.h>.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Chris Boot <bootc@bootc.net>
2016-12-09 10:20:10 -08:00
Bart Van Assche
09ce66aee7 qla2xxx: Add an #include directive
The following statement in qla_isr.c needs the size of struct
t10_pi_tuple:

    spt += j;

Hence include the <linux/t10-pi.h> header file.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
2016-12-09 10:20:09 -08:00
Bart Van Assche
a6ab53742a configfs: Minimize #include directives
Only include the header files that are needed by configfs.h itself.
Add #include <linux/stat.h>.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
2016-12-09 10:20:09 -08:00
Bart Van Assche
03274445c0 usb: gadget: Fix second argument of percpu_ida_alloc()
Pass a task state as second argument to percpu_ida_alloc().

Fixes: commit 71e7ae8e1f ("usb-gadget/tcm: Conversion to percpu_ida tag pre-allocation")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-12-09 10:20:08 -08:00
Bart Van Assche
8456066a57 sbp-target: Fix second argument of percpu_ida_alloc()
Pass a task state as second argument to percpu_ida_alloc().

Fixes: commit 5a3ee221b5 ("sbp-target: Conversion to percpu_ida tag pre-allocation")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Chris Boot <bootc@bootc.net>
2016-12-09 10:20:07 -08:00
Bart Van Assche
ecaf597b41 target/user: Fix a data type in tcmu_queue_cmd()
This patch avoids that sparse reports the following error messages:

drivers/target/target_core_user.c:547:13: warning: incorrect type in assignment (different base types)
drivers/target/target_core_user.c:547:13:    expected int [signed] ret
drivers/target/target_core_user.c:547:13:    got restricted sense_reason_t
drivers/target/target_core_user.c:548:20: warning: restricted sense_reason_t degrades to integer
drivers/target/target_core_user.c:557:16: warning: incorrect type in return expression (different base types)
drivers/target/target_core_user.c:557:16:    expected restricted sense_reason_t
drivers/target/target_core_user.c:557:16:    got int [signed] ret

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
2016-12-09 10:20:07 -08:00
Bart Van Assche
8cc3bb0789 target: Use NULL instead of 0 to represent a pointer
This has been detected by sparse.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
2016-12-09 10:20:01 -08:00
Linus Torvalds
3e5de27e94 Linux 4.9-rc8 2016-12-04 12:50:51 -08:00
Linus Torvalds
0cb65c8330 Merge tag 'drm-fixes-for-v4.9-rc8' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "A pretty small pull request: a couple of AMD powerxpress regression
  fixes and a power management fix, a couple of i915 fixes and one hdlcd
  fix, along with one core don't oops because of incorrect API usage fix"

* tag 'drm-fixes-for-v4.9-rc8' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: drop the struct_mutex when wedged or trying to reset
  drm/i915: Don't touch NULL sg on i915_gem_object_get_pages_gtt() error
  drm: Don't call drm_for_each_crtc with a non-KMS driver
  drm/radeon: fix check for port PM availability
  drm/amdgpu: fix check for port PM availability
  drm/amd/powerplay: initialize the soft_regs offset in struct smu7_hwmgr
  drm: hdlcd: Fix cleanup order
2016-12-03 16:40:21 -08:00
Dave Airlie
ab7cd8d83e Merge tag 'drm-intel-fixes-2016-12-01' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
2 intel fixes.

* tag 'drm-intel-fixes-2016-12-01' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: drop the struct_mutex when wedged or trying to reset
  drm/i915: Don't touch NULL sg on i915_gem_object_get_pages_gtt() error
2016-12-04 06:31:26 +10:00
Linus Torvalds
3c49de52d5 Merge branch 'akpm' (patches from Andrew)
Merge more fixes from Andrew Morton:
 "2 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, vmscan: add cond_resched() into shrink_node_memcg()
  mm: workingset: fix NULL ptr in count_shadow_nodes
2016-12-02 18:48:11 -08:00
Michal Hocko
bd041733c9 mm, vmscan: add cond_resched() into shrink_node_memcg()
Boris Zhmurov has reported RCU stalls during the kswapd reclaim:

  INFO: rcu_sched detected stalls on CPUs/tasks:
   23-...: (22 ticks this GP) idle=92f/140000000000000/0 softirq=2638404/2638404 fqs=23
   (detected by 4, t=6389 jiffies, g=786259, c=786258, q=42115)
  Task dump for CPU 23:
  kswapd1         R  running task        0   148      2 0x00000008
  Call Trace:
    shrink_node+0xd2/0x2f0
    kswapd+0x2cb/0x6a0
    mem_cgroup_shrink_node+0x160/0x160
    kthread+0xbd/0xe0
    __switch_to+0x1fa/0x5c0
    ret_from_fork+0x1f/0x40
    kthread_create_on_node+0x180/0x180

a closer code inspection has shown that we might indeed miss all the
scheduling points in the reclaim path if no pages can be isolated from
the LRU list.  This is a pathological case but other reports from Donald
Buczek have shown that we might indeed hit such a path:

        clusterd-989   [009] .... 118023.654491: mm_vmscan_direct_reclaim_end: nr_reclaimed=193
         kswapd1-86    [001] dN.. 118023.987475: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239830 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.320968: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239844 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.654375: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239858 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118024.987036: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239872 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.319651: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239886 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.652248: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239900 nr_taken=0 file=1
         kswapd1-86    [001] dN.. 118025.984870: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4239914 nr_taken=0 file=1
  [...]
         kswapd1-86    [001] dN.. 118084.274403: mm_vmscan_lru_isolate: isolate_mode=0 classzone=0 order=0 nr_requested=32 nr_scanned=4241133 nr_taken=0 file=1

this is minute long snapshot which didn't take a single page from the
LRU.  It is not entirely clear why only 1303 pages have been scanned
during that time (maybe there was a heavy IRQ activity interfering).

In any case it looks like we can really hit long periods without
scheduling on non preemptive kernels so an explicit cond_resched() in
shrink_node_memcg which is independent on the reclaim operation is due.

Link: http://lkml.kernel.org/r/20161202095841.16648-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Boris Zhmurov <bb@kernelpanic.ru>
Tested-by: Boris Zhmurov <bb@kernelpanic.ru>
Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Reported-by: "Christopher S. Aker" <caker@theshore.net>
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 18:48:03 -08:00
Michal Hocko
20ab67a563 mm: workingset: fix NULL ptr in count_shadow_nodes
Commit 0a6b76dd23 ("mm: workingset: make shadow node shrinker memcg
aware") has made the workingset shadow nodes shrinker memcg aware.  The
implementation is not correct though because memcg_kmem_enabled() might
become true while we are doing a global reclaim when the sc->memcg might
be NULL which is exactly what Marek has seen:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000400
  IP: [<ffffffff8122d520>] mem_cgroup_node_nr_lru_pages+0x20/0x40
  PGD 0
  Oops: 0000 [#1] SMP
  CPU: 0 PID: 60 Comm: kswapd0 Tainted: G           O   4.8.10-12.pvops.qubes.x86_64 #1
  task: ffff880011863b00 task.stack: ffff880011868000
  RIP: mem_cgroup_node_nr_lru_pages+0x20/0x40
  RSP: e02b:ffff88001186bc70  EFLAGS: 00010293
  RAX: 0000000000000000 RBX: ffff88001186bd20 RCX: 0000000000000002
  RDX: 000000000000000c RSI: 0000000000000000 RDI: 0000000000000000
  RBP: ffff88001186bc70 R08: 28f5c28f5c28f5c3 R09: 0000000000000000
  R10: 0000000000006c34 R11: 0000000000000333 R12: 00000000000001f6
  R13: ffffffff81c6f6a0 R14: 0000000000000000 R15: 0000000000000000
  FS:  0000000000000000(0000) GS:ffff880013c00000(0000) knlGS:ffff880013d00000
  CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000400 CR3: 00000000122f2000 CR4: 0000000000042660
  Call Trace:
    count_shadow_nodes+0x9a/0xa0
    shrink_slab.part.42+0x119/0x3e0
    shrink_node+0x22c/0x320
    kswapd+0x32c/0x700
    kthread+0xd8/0xf0
    ret_from_fork+0x1f/0x40
  Code: 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 3b 35 dd eb b1 00 55 48 89 e5 73 2c 89 d2 31 c9 31 c0 4c 63 ce 48 0f a3 ca 73 13 <4a> 8b b4 cf 00 04 00 00 41 89 c8 4a 03 84 c6 80 00 00 00 83 c1
  RIP  mem_cgroup_node_nr_lru_pages+0x20/0x40
   RSP <ffff88001186bc70>
  CR2: 0000000000000400
  ---[ end trace 100494b9edbdfc4d ]---

This patch fixes the issue by checking sc->memcg rather than
memcg_kmem_enabled() which is sufficient because shrink_slab makes sure
that only memcg aware shrinkers will get non-NULL memcgs and only if
memcg_kmem_enabled is true.

Fixes: 0a6b76dd23 ("mm: workingset: make shadow node shrinker memcg aware")
Link: http://lkml.kernel.org/r/20161201132156.21450-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Marek Marczykowski-Górecki <marmarek@mimuw.edu.pl>
Tested-by: Marek Marczykowski-Górecki <marmarek@mimuw.edu.pl>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@vger.kernel.org>	[4.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 18:48:03 -08:00
Nicolas Pitre
8655639240 kbuild: fix building bzImage with CONFIG_TRIM_UNUSED_KSYMS enabled
When building a specific target such as bzImage, modules aren't normally
built.  However if CONFIG_TRIM_UNUSED_KSYMS is enabled, no built modules
means none of the exported symbols are used and therefore they will all
be trimmed away from the final kernel.  A subsequent "make modules" will
fail because modpost cannot find the needed symbols for those modules in
the kernel binary.

Let's make sure modules are also built whenever CONFIG_TRIM_UNUSED_KSYMS
is enabled and that the kernel binary is properly rebuilt accordingly.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 14:46:42 -08:00
Linus Torvalds
8dc0f265d3 ARM: SoC fixes for v4.9
This should be the last set of bugfixes for arm-soc in v4.9.
 None of these are critical regressions, but it would be nice
 to still get them merged.
 
 - On the Juno platform, the idle latency was described wrong,
   leading to suboptimal cpuidle tuning.
 
 - Also on the same platform, PCI I/O space was set up incorrectly
   and could not work.
 
 - On the sti platform, a syntactically incorrect DT entry caused
   warnings.
 
 - The newly added 'gr8' platform has somewhat confusing file
   names, which we rename for consistency.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "This should be the last set of bugfixes for arm-soc in v4.9. None of
  these are critical regressions, but it would be nice to still get them
  merged.

   - On the Juno platform, the idle latency was described wrong, leading
     to suboptimal cpuidle tuning.

   - Also on the same platform, PCI I/O space was set up incorrectly and
     could not work.

   - On the sti platform, a syntactically incorrect DT entry caused
     warnings.

   - The newly added 'gr8' platform has somewhat confusing file names,
     which we rename for consistency"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
  arm64: dts: juno: Correct PCI IO window
  ARM: dts: STiH407-family: fix i2c nodes
  ARM: gr8: Rename the DTSI and relevant DTS
2016-12-02 13:34:37 -08:00
Linus Torvalds
8bca927f13 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Lots more phydev and probe error path leaks in various drivers by
    Johan Hovold.

 2) Fix race in packet_set_ring(), from Philip Pettersson.

 3) Use after free in dccp_invalid_packet(), from Eric Dumazet.

 4) Signnedness overflow in SO_{SND,RCV}BUFFORCE, also from Eric
    Dumazet.

 5) When tunneling between ipv4 and ipv6 we can be left with the wrong
    skb->protocol value as we enter the IPSEC engine and this causes all
    kinds of problems. Set it before the output path does any
    dst_output() calls, from Eli Cooper.

 6) bcmgenet uses wrong device struct pointer in DMA API calls, fix from
    Florian Fainelli.

 7) Various netfilter nat bug fixes from FLorian Westphal.

 8) Fix memory leak in ipvlan_link_new(), from Gao Feng.

 9) Locking fixes, particularly wrt. socket lookups, in l2tp from
    Guillaume Nault.

10) Avoid invoking rhash teardowns in atomic context by moving netlink
    cb->done() dump completion from a worker thread. Fix from Herbert
    Xu.

11) Buffer refcount problems in tun and macvtap on errors, from Jason
    Wang.

12) We don't set Kconfig symbol DEFAULT_TCP_CONG properly when the user
    selects BBR. Fix from Julian Wollrath.

13) Fix deadlock in transmit path on altera TSE driver, from Lino
    Sanfilippo.

14) Fix unbalanced reference counting in dsa_switch_tree, from Nikita
    Yushchenko.

15) tc_tunnel_key needs to be properly exported to userspace via uapi,
    fix from Roi Dayan.

16) rds_tcp_init_net() doesn't unregister notifier in error path, fix
    from Sowmini Varadhan.

17) Stale packet header pointer access after pskb_expand_head() in
    genenve driver, fix from Sabrina Dubroca.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (103 commits)
  net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
  geneve: avoid use-after-free of skb->data
  tipc: check minimum bearer MTU
  net: renesas: ravb: unintialized return value
  sh_eth: remove unchecked interrupts for RZ/A1
  net: bcmgenet: Utilize correct struct device for all DMA operations
  NET: usb: qmi_wwan: add support for Telit LE922A PID 0x1040
  cdc_ether: Fix handling connection notification
  ip6_offload: check segs for NULL in ipv6_gso_segment.
  RDS: TCP: unregister_netdevice_notifier() in error path of rds_tcp_init_net
  Revert: "ip6_tunnel: Update skb->protocol to ETH_P_IPV6 in ip6_tnl_xmit()"
  ipv6: Set skb->protocol properly for local output
  ipv4: Set skb->protocol properly for local output
  packet: fix race condition in packet_set_ring
  net: ethernet: altera: TSE: do not use tx queue lock in tx completion handler
  net: ethernet: altera: TSE: Remove unneeded dma sync for tx buffers
  net: ethernet: stmmac: fix of-node and fixed-link-phydev leaks
  net: ethernet: stmmac: platform: fix outdated function header
  net: ethernet: stmmac: dwmac-meson8b: fix probe error path
  net: ethernet: stmmac: dwmac-generic: fix probe error path
  ...
2016-12-02 11:45:27 -08:00
Eric Dumazet
b98b0bc8c4 net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
CAP_NET_ADMIN users should not be allowed to set negative
sk_sndbuf or sk_rcvbuf values, as it can lead to various memory
corruptions, crashes, OOM...

Note that before commit 8298193012 ("net: cleanups in
sock_setsockopt()"), the bug was even more serious, since SO_SNDBUF
and SO_RCVBUF were vulnerable.

This needs to be backported to all known linux kernels.

Again, many thanks to syzkaller team for discovering this gem.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 14:10:14 -05:00
Sabrina Dubroca
5b01014759 geneve: avoid use-after-free of skb->data
geneve{,6}_build_skb can end up doing a pskb_expand_head(), which
makes the ip_hdr(skb) reference we stashed earlier stale. Since it's
only needed as an argument to ip_tunnel_ecn_encap(), move this
directly in the function call.

Fixes: 08399efc63 ("geneve: ensure ECN info is handled properly in all tx/rx paths")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 14:07:11 -05:00
Michal Kubeček
3de81b7588 tipc: check minimum bearer MTU
Qian Zhang (张谦) reported a potential socket buffer overflow in
tipc_msg_build() which is also known as CVE-2016-8632: due to
insufficient checks, a buffer overflow can occur if MTU is too short for
even tipc headers. As anyone can set device MTU in a user/net namespace,
this issue can be abused by a regular user.

As agreed in the discussion on Ben Hutchings' original patch, we should
check the MTU at the moment a bearer is attached rather than for each
processed packet. We also need to repeat the check when bearer MTU is
adjusted to new device MTU. UDP case also needs a check to avoid
overflow when calculating bearer MTU.

Fixes: b97bf3fd8f ("[TIPC] Initial merge")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reported-by: Qian Zhang (张谦) <zhangqian-c@360.cn>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 14:03:20 -05:00
David S. Miller
f0d21e8947 linux-can-fixes-for-4.9-20161201
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Merge tag 'linux-can-fixes-for-4.9-20161201' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2016-12-02

this is a pull request for net/master.

There are two patches by Stephane Grosjean, who adds support for the new
PCAN-USB X6 USB interface to the pcan_usb driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 14:02:13 -05:00
Dan Carpenter
50d5aa4cf8 net: renesas: ravb: unintialized return value
We want to set the other "err" variable here so that we can return it
later.  My version of GCC misses this issue but I caught it with a
static checker.

Fixes: 9f70eb339f ("net: ethernet: renesas: ravb: fix fixed-link phydev leaks")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:59:47 -05:00
Chris Brandt
33d446dbba sh_eth: remove unchecked interrupts for RZ/A1
When streaming a lot of data and the RZ/A1 can't keep up, some status bits
will get set that are not being checked or cleared which cause the
following messages and the Ethernet driver to stop working. This
patch fixes that issue.

irq 21: nobody cared (try booting with the "irqpoll" option)
handlers:
[<c036b71c>] sh_eth_interrupt
Disabling IRQ #21

Fixes: db893473d3 ("sh_eth: Add support for r7s72100")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:54:50 -05:00
Florian Fainelli
8c4799ac79 net: bcmgenet: Utilize correct struct device for all DMA operations
__bcmgenet_tx_reclaim() and bcmgenet_free_rx_buffers() are not using the
same struct device during unmap that was used for the map operation,
which makes DMA-API debugging warn about it. Fix this by always using
&priv->pdev->dev throughout the driver, using an identical device
reference for all map/unmap calls.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:53:34 -05:00
Linus Torvalds
ed8d747fd2 Fix up a couple of field names in the CREDITS file
Ozgur Karatas reported that the very first entry in the CREDITS file had
the wrong tag for name (M: instead of N: - it happened when moving the
entry from the MAINTAINERS file, where 'M:' stands for "Maintainer").

And when I went looking, I found a couple of other cases of wrong
tagging too.

Reported-by: Ozgur Karatas <mueddib@yandex.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 10:48:50 -08:00
Daniele Palmas
9bd813da24 NET: usb: qmi_wwan: add support for Telit LE922A PID 0x1040
This patch adds support for PID 0x1040 of Telit LE922A.

The qmi adapter requires to have DTR set for proper working,
so QMI_WWAN_QUIRK_DTR has been enabled.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:42:12 -05:00
Kristian Evensen
d5c83d0d1d cdc_ether: Fix handling connection notification
Commit bfe9b9d2df ("cdc_ether: Improve ZTE MF823/831/910 handling")
introduced a work-around in usbnet_cdc_status() for devices that exported
cdc carrier on twice on connect. Before the commit, this behavior caused
the link state to be incorrect. It was assumed that all CDC Ethernet
devices would either export this behavior, or send one off and then one on
notification (which seems to be the default behavior).

Unfortunately, it turns out multiple devices sends a connection
notification multiple times per second (via an interrupt), even when
connection state does not change. This has been observed with several
different USB LAN dongles (at least), for example 13b1:0041 (Linksys).
After bfe9b9d2df, the link state has been set as down and then up for
each notification. This has caused a flood of Netlink NEWLINK messages and
syslog to be flooded with messages similar to:

cdc_ether 2-1:2.0 eth1: kevent 12 may have been dropped

This commit fixes the behavior by reverting usbnet_cdc_status() to how it
was before bfe9b9d2df. The work-around has been moved to a separate
status-function which is only called when a known, affect device is
detected.

v1->v2:

* Do not open-code netif_carrier_ok() (thanks Henning Schild).
* Call netif_carrier_off() instead of usb_link_change(). This prevents
calling schedule_work() twice without giving the work queue a chance to be
processed (thanks Bjørn Mork).

Fixes: bfe9b9d2df ("cdc_ether: Improve ZTE MF823/831/910 handling")
Reported-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:40:09 -05:00
Artem Savkov
6b6ebb6b01 ip6_offload: check segs for NULL in ipv6_gso_segment.
segs needs to be checked for being NULL in ipv6_gso_segment() before calling
skb_shinfo(segs), otherwise kernel can run into a NULL-pointer dereference:

[   97.811262] BUG: unable to handle kernel NULL pointer dereference at 00000000000000cc
[   97.819112] IP: [<ffffffff816e52f9>] ipv6_gso_segment+0x119/0x2f0
[   97.825214] PGD 0 [   97.827047]
[   97.828540] Oops: 0000 [#1] SMP
[   97.831678] Modules linked in: vhost_net vhost macvtap macvlan nfsv3 rpcsec_gss_krb5
nfsv4 dns_resolver nfs fscache xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4
iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
ipt_REJECT nf_reject_ipv4 tun ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter
bridge stp llc snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel
snd_hda_codec edac_mce_amd snd_hda_core edac_core snd_hwdep kvm_amd snd_seq kvm snd_seq_device
snd_pcm irqbypass snd_timer ppdev parport_serial snd parport_pc k10temp pcspkr soundcore parport
sp5100_tco shpchp sg wmi i2c_piix4 acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc
ip_tables xfs libcrc32c sr_mod cdrom sd_mod ata_generic pata_acpi amdkfd amd_iommu_v2 radeon
broadcom bcm_phy_lib i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
ttm ahci serio_raw tg3 firewire_ohci libahci pata_atiixp drm ptp libata firewire_core pps_core
i2c_core crc_itu_t fjes dm_mirror dm_region_hash dm_log dm_mod
[   97.927721] CPU: 1 PID: 3504 Comm: vhost-3495 Not tainted 4.9.0-7.el7.test.x86_64 #1
[   97.935457] Hardware name: AMD Snook/Snook, BIOS ESK0726A 07/26/2010
[   97.941806] task: ffff880129a1c080 task.stack: ffffc90001bcc000
[   97.947720] RIP: 0010:[<ffffffff816e52f9>]  [<ffffffff816e52f9>] ipv6_gso_segment+0x119/0x2f0
[   97.956251] RSP: 0018:ffff88012fc43a10  EFLAGS: 00010207
[   97.961557] RAX: 0000000000000000 RBX: ffff8801292c8700 RCX: 0000000000000594
[   97.968687] RDX: 0000000000000593 RSI: ffff880129a846c0 RDI: 0000000000240000
[   97.975814] RBP: ffff88012fc43a68 R08: ffff880129a8404e R09: 0000000000000000
[   97.982942] R10: 0000000000000000 R11: ffff880129a84076 R12: 00000020002949b3
[   97.990070] R13: ffff88012a580000 R14: 0000000000000000 R15: ffff88012a580000
[   97.997198] FS:  0000000000000000(0000) GS:ffff88012fc40000(0000) knlGS:0000000000000000
[   98.005280] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.011021] CR2: 00000000000000cc CR3: 0000000126c5d000 CR4: 00000000000006e0
[   98.018149] Stack:
[   98.020157]  00000000ffffffff ffff88012fc43ac8 ffffffffa017ad0a 000000000000000e
[   98.027584]  0000001300000000 0000000077d59998 ffff8801292c8700 00000020002949b3
[   98.035010]  ffff88012a580000 0000000000000000 ffff88012a580000 ffff88012fc43a98
[   98.042437] Call Trace:
[   98.044879]  <IRQ> [   98.046803]  [<ffffffffa017ad0a>] ? tg3_start_xmit+0x84a/0xd60 [tg3]
[   98.053156]  [<ffffffff815eeee0>] skb_mac_gso_segment+0xb0/0x130
[   98.059158]  [<ffffffff815eefd3>] __skb_gso_segment+0x73/0x110
[   98.064985]  [<ffffffff815ef40d>] validate_xmit_skb+0x12d/0x2b0
[   98.070899]  [<ffffffff815ef5d2>] validate_xmit_skb_list+0x42/0x70
[   98.077073]  [<ffffffff81618560>] sch_direct_xmit+0xd0/0x1b0
[   98.082726]  [<ffffffff815efd86>] __dev_queue_xmit+0x486/0x690
[   98.088554]  [<ffffffff8135c135>] ? cpumask_next_and+0x35/0x50
[   98.094380]  [<ffffffff815effa0>] dev_queue_xmit+0x10/0x20
[   98.099863]  [<ffffffffa09ce057>] br_dev_queue_push_xmit+0xa7/0x170 [bridge]
[   98.106907]  [<ffffffffa09ce161>] br_forward_finish+0x41/0xc0 [bridge]
[   98.113430]  [<ffffffff81627cf2>] ? nf_iterate+0x52/0x60
[   98.118735]  [<ffffffff81627d6b>] ? nf_hook_slow+0x6b/0xc0
[   98.124216]  [<ffffffffa09ce32c>] __br_forward+0x14c/0x1e0 [bridge]
[   98.130480]  [<ffffffffa09ce120>] ? br_dev_queue_push_xmit+0x170/0x170 [bridge]
[   98.137785]  [<ffffffffa09ce4bd>] br_forward+0x9d/0xb0 [bridge]
[   98.143701]  [<ffffffffa09cfbb7>] br_handle_frame_finish+0x267/0x560 [bridge]
[   98.150834]  [<ffffffffa09d0064>] br_handle_frame+0x174/0x2f0 [bridge]
[   98.157355]  [<ffffffff8102fb89>] ? sched_clock+0x9/0x10
[   98.162662]  [<ffffffff810b63b2>] ? sched_clock_cpu+0x72/0xa0
[   98.168403]  [<ffffffff815eccf5>] __netif_receive_skb_core+0x1e5/0xa20
[   98.174926]  [<ffffffff813659f9>] ? timerqueue_add+0x59/0xb0
[   98.180580]  [<ffffffff815ed548>] __netif_receive_skb+0x18/0x60
[   98.186494]  [<ffffffff815ee625>] process_backlog+0x95/0x140
[   98.192145]  [<ffffffff815edccd>] net_rx_action+0x16d/0x380
[   98.197713]  [<ffffffff8170cff1>] __do_softirq+0xd1/0x283
[   98.203106]  [<ffffffff8170b2bc>] do_softirq_own_stack+0x1c/0x30
[   98.209107]  <EOI> [   98.211029]  [<ffffffff8108a5c0>] do_softirq+0x50/0x60
[   98.216166]  [<ffffffff815ec853>] netif_rx_ni+0x33/0x80
[   98.221386]  [<ffffffffa09eeff7>] tun_get_user+0x487/0x7f0 [tun]
[   98.227388]  [<ffffffffa09ef3ab>] tun_sendmsg+0x4b/0x60 [tun]
[   98.233129]  [<ffffffffa0b68932>] handle_tx+0x282/0x540 [vhost_net]
[   98.239392]  [<ffffffffa0b68c25>] handle_tx_kick+0x15/0x20 [vhost_net]
[   98.245916]  [<ffffffffa0abacfe>] vhost_worker+0x9e/0xf0 [vhost]
[   98.251919]  [<ffffffffa0abac60>] ? vhost_umem_alloc+0x40/0x40 [vhost]
[   98.258440]  [<ffffffff81003a47>] ? do_syscall_64+0x67/0x180
[   98.264094]  [<ffffffff810a44d9>] kthread+0xd9/0xf0
[   98.268965]  [<ffffffff810a4400>] ? kthread_park+0x60/0x60
[   98.274444]  [<ffffffff8170a4d5>] ret_from_fork+0x25/0x30
[   98.279836] Code: 8b 93 d8 00 00 00 48 2b 93 d0 00 00 00 4c 89 e6 48 89 df 66 89 93 c2 00 00 00 ff 10 48 3d 00 f0 ff ff 49 89 c2 0f 87 52 01 00 00 <41> 8b 92 cc 00 00 00 48 8b 80 d0 00 00 00 44 0f b7 74 10 06 66
[   98.299425] RIP  [<ffffffff816e52f9>] ipv6_gso_segment+0x119/0x2f0
[   98.305612]  RSP <ffff88012fc43a10>
[   98.309094] CR2: 00000000000000cc
[   98.312406] ---[ end trace 726a2c7a2d2d78d0 ]---

Signed-off-by: Artem Savkov <asavkov@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:34:58 -05:00
Sowmini Varadhan
721c7443dc RDS: TCP: unregister_netdevice_notifier() in error path of rds_tcp_init_net
If some error is encountered in rds_tcp_init_net, make sure to
unregister_netdevice_notifier(), else we could trigger a panic
later on, when the modprobe from a netns fails.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:29:26 -05:00
Eli Cooper
80d1106aea Revert: "ip6_tunnel: Update skb->protocol to ETH_P_IPV6 in ip6_tnl_xmit()"
This reverts commit ae148b0858
("ip6_tunnel: Update skb->protocol to ETH_P_IPV6 in ip6_tnl_xmit()").

skb->protocol is now set in __ip_local_out() and __ip6_local_out() before
dst_output() is called. It is no longer necessary to do it for each tunnel.

Cc: stable@vger.kernel.org
Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:34:22 -05:00
Eli Cooper
b4e479a96f ipv6: Set skb->protocol properly for local output
When xfrm is applied to TSO/GSO packets, it follows this path:

    xfrm_output() -> xfrm_output_gso() -> skb_gso_segment()

where skb_gso_segment() relies on skb->protocol to function properly.

This patch sets skb->protocol to ETH_P_IPV6 before dst_output() is called,
fixing a bug where GSO packets sent through an ipip6 tunnel are dropped
when xfrm is involved.

Cc: stable@vger.kernel.org
Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:34:22 -05:00
Eli Cooper
f418043910 ipv4: Set skb->protocol properly for local output
When xfrm is applied to TSO/GSO packets, it follows this path:

    xfrm_output() -> xfrm_output_gso() -> skb_gso_segment()

where skb_gso_segment() relies on skb->protocol to function properly.

This patch sets skb->protocol to ETH_P_IP before dst_output() is called,
fixing a bug where GSO packets sent through a sit tunnel are dropped
when xfrm is involved.

Cc: stable@vger.kernel.org
Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:34:22 -05:00
Philip Pettersson
84ac726023 packet: fix race condition in packet_set_ring
When packet_set_ring creates a ring buffer it will initialize a
struct timer_list if the packet version is TPACKET_V3. This value
can then be raced by a different thread calling setsockopt to
set the version to TPACKET_V1 before packet_set_ring has finished.

This leads to a use-after-free on a function pointer in the
struct timer_list when the socket is closed as the previously
initialized timer will not be deleted.

The bug is fixed by taking lock_sock(sk) in packet_setsockopt when
changing the packet version while also taking the lock at the start
of packet_set_ring.

Fixes: f6fb8f100b ("af-packet: TPACKET_V3 flexible buffer implementation.")
Signed-off-by: Philip Pettersson <philip.pettersson@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:16:49 -05:00
Linus Torvalds
4aa675aaf2 KVM fixes for v4.9-rc8
All architectures avoid memory corruption in an error path.
 ARM prevents bogus acknowledgement of interrupts.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "All architectures avoid memory corruption in an error path. ARM
  prevents bogus acknowledgement of interrupts"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: use after free in kvm_ioctl_create_device()
  KVM: arm/arm64: vgic: Don't notify EOI for non-SPIs
2016-12-02 09:15:26 -08:00
Linus Torvalds
3e52d063d8 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
 "Here is the revert for the regression of the i2c-octeon driver I
  mentioned last time. I wished for a bit more feedback, but all people
  working actively on it are in need of this patch, so here it goes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  Revert "i2c: octeon: thunderx: Limit register access retries"
2016-12-02 09:12:44 -08:00
Lino Sanfilippo
2219d5ed77 net: ethernet: altera: TSE: do not use tx queue lock in tx completion handler
The driver already uses its private lock for synchronization between xmit
and xmit completion handler making the additional use of the xmit_lock
unnecessary.
Furthermore the driver does not set NETIF_F_LLTX resulting in xmit to be
called with the xmit_lock held and then taking the private lock while xmit
completion handler does the reverse, first take the private lock, then the
xmit_lock.
Fix these issues by not taking the xmit_lock in the tx completion handler.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:10:25 -05:00
Lino Sanfilippo
151a14db22 net: ethernet: altera: TSE: Remove unneeded dma sync for tx buffers
An explicit dma sync for device directly after mapping as well as an
explicit dma sync for cpu directly before unmapping is unnecessary and
costly on the hotpath. So remove these calls.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 12:10:24 -05:00
Arnd Bergmann
8ab2ae655b default exported asm symbols to zero
With binutils-2.26 and before, a weak missing symbol was kept during the
final link, and a missing CRC for an export would lead to that CRC being
treated as zero implicitly.  With binutils-2.27, the crc symbol gets
dropped, and any module trying to use it will fail to load.

This sets the weak CRC symbol to zero explicitly, making it defined in
vmlinux, which in turn lets us load the modules referring to that CRC.

The comment above the __CRC_SYMBOL macro suggests that this was always
the intention, although it also seems that all symbols defined in C have
a correct CRC these days, and only the exports that are now done in
assembly need this.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Adam Borowski <kilobyte@angband.pl>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-02 08:51:22 -08:00
Sudeep Holla
909e481e24 arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
The core and the cluster sleep state entry latencies can't be same as
cluster sleep involves more work compared to core level e.g. shared
cache maintenance.

Experiments have shown on an average about 100us more latency for the
cluster sleep state compared to the core level sleep. This patch fixes
the entry latency for the cluster sleep state.

Fixes: 28e10a8f3a ("arm64: dts: juno: Add idle-states to device tree")
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: "Jon Medhurst (Tixy)" <tixy@linaro.org>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-12-02 17:28:17 +01:00
David S. Miller
d262fd12cd Merge branch 'stmmac-probe-error-handling-and-phydev-leaks'
Johan Hovold says:

====================
net: stmmac: fix probe error handling and phydev leaks

This series fixes a number of issues with the stmmac-driver probe error
handling, which for example left clocks enabled after probe failures.

The final patch fixes a failure to deregister and free any fixed-link
PHYs that were registered during probe on probe errors and on driver
unbind. It also fixes a related of-node leak on late probe errors.

This series depends on the of_phy_deregister_fixed_link() helper that
was just merged to net.

As mentioned earlier, one staging driver also suffers from a similar
leak and can be fixed up once the above mentioned helper hits mainline.

Note that these patches have only been compile tested.
====================

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:43:23 -05:00
Johan Hovold
d2ed0a7755 net: ethernet: stmmac: fix of-node and fixed-link-phydev leaks
Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by adding a new glue helper
function.

Drop the of-node reference taken in the same path also on late probe
errors (and not just on driver unbind) by moving the put from
stmmac_dvr_remove() to the new helper.

Fixes: 277323814e ("stmmac: add fixed-link device-tree support")
Fixes: 4613b279be ("ethernet: stmicro: stmmac: add missing of_node_put
after calling of_parse_phandle")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:47 -05:00
Johan Hovold
661f049be1 net: ethernet: stmmac: platform: fix outdated function header
Fix the OF-helper function header to reflect that the function no longer
has a platform-data parameter.

Fixes: b0003ead75 ("stmmac: make stmmac_probe_config_dt return the
platform data struct")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:46 -05:00
Johan Hovold
5cc70bbcac net: ethernet: stmmac: dwmac-meson8b: fix probe error path
Make sure to disable clocks before returning on late probe errors.

Fixes: 566e825162 ("net: stmmac: add a glue driver for the Amlogic
Meson 8b / GXBB DWMAC")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:46 -05:00
Johan Hovold
939b200227 net: ethernet: stmmac: dwmac-generic: fix probe error path
Make sure to call any exit() callback to undo the effect of init()
before returning on late probe errors.

Fixes: cf3f047b9a ("stmmac: move hw init in the probe (v2)")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:46 -05:00
Johan Hovold
2d222656db net: ethernet: stmmac: dwmac-rk: fix probe error path
Make sure to disable runtime PM, power down the PHY, and disable clocks
before returning on late probe errors.

Fixes: 27ffefd2d1 ("stmmac: dwmac-rk: create a new probe function")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:45 -05:00
Johan Hovold
0a9e22715e net: ethernet: stmmac: dwmac-sti: fix probe error path
Make sure to disable clocks before returning on late probe errors.

Fixes: 8387ee21f9 ("stmmac: dwmac-sti: turn setup callback into a
probe function")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:45 -05:00
Johan Hovold
50ac64cfc3 net: ethernet: stmmac: dwmac-socfpga: fix use-after-free on probe errors
Make sure to call stmmac_dvr_remove() before returning on late probe
errors so that memory is freed, clocks are disabled, and the netdev is
deregistered before its resources go away.

Fixes: 3c201b5a84 ("net: stmmac: socfpga: Remove re-registration of
reset controller")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:42:45 -05:00
Tobias Klauser
6919756caa net/rtnetlink: fix attribute name in nlmsg_size() comments
Use the correct attribute constant names IFLA_GSO_MAX_{SEGS,SIZE}
instead of IFLA_MAX_GSO_{SEGS,SIZE} for the comments int nlmsg_size().

Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 10:34:59 -05:00
Linus Torvalds
4db5e636dd pci-v4.9-fixes-4
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Merge tag 'pci-v4.9-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "PCI fixes:

   - Fix Read Completion Boundary setting, which fixes a boot failure on
     IBM x3850 with Mellanox MT27500 ConnectX-3

   - Update some MAINTAINERS entries and email addresses"

* tag 'pci-v4.9-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Set Read Completion Boundary to 128 iff Root Port supports it (_HPX)
  PCI: Export pcie_find_root_port
  PCI: designware-plat: Update author email
  PCI: designware: Change maintainer to Joao Pinto
  MAINTAINERS: Add devicetree binding to PCI i.MX6 entry
  MAINTAINERS: Update Richard Zhu's email address
2016-12-01 16:44:42 -08:00
Alexander Duyck
c54cdc316d ixgbe/ixgbevf: Don't use lco_csum to compute IPv4 checksum
In the case of IPIP and SIT tunnel frames the outer transport header
offset is actually set to the same offset as the inner transport header.
This results in the lco_csum call not doing any checksum computation over
the inner IPv4/v6 header data.

In order to account for that I am updating the code so that we determine
the location to start the checksum ourselves based on the location of the
IPv4 header and the length.

Fixes: b83e30104b ("ixgbe/ixgbevf: Add support for GSO partial")
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-01 15:41:36 -05:00
Alexander Duyck
516165a1e2 igb/igbvf: Don't use lco_csum to compute IPv4 checksum
In the case of IPIP and SIT tunnel frames the outer transport header
offset is actually set to the same offset as the inner transport header.
This results in the lco_csum call not doing any checksum computation over
the inner IPv4/v6 header data.

In order to account for that I am updating the code so that we determine
the location to start the checksum ourselves based on the location of the
IPv4 header and the length.

Fixes: e10715d3e9 ("igb/igbvf: Add support for GSO partial")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-01 15:41:35 -05:00