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  1. 11 10月, 2017 1 次提交
  3. 29 9月, 2017 1 次提交
  5. 27 9月, 2017 3 次提交
  7. 25 9月, 2017 5 次提交
  9. 21 9月, 2017 1 次提交
  11. 17 9月, 2017 2 次提交
  13. 16 9月, 2017 6 次提交
    • S
      netvsc: increase default receive buffer size · 5023a6db
      由 Stephen Hemminger 提交于 
      The default receive buffer size was reduced by recent change
to a value which was appropriate for 10G and Windows Server 2016.
But the value is too small for full performance with 40G on Azure.
Increase the default back to maximum supported by host.

Fixes: 8b532797 ("netvsc: allow controlling send/recv buffer size")
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5023a6db
    • G
      net: smsc911x: Quieten netif during suspend · 2aa70f86
      由 Geert Uytterhoeven 提交于 
      If the network interface is kept running during suspend, the net core
may call net_device_ops.ndo_start_xmit() while the Ethernet device is
still suspended, which may lead to a system crash.

E.g. on sh73a0/kzm9g and r8a73a4/ape6evm, the external Ethernet chip is
driven by a PM controlled clock.  If the Ethernet registers are accessed
while the clock is not running, the system will crash with an imprecise
external abort.

As this is a race condition with a small time window, it is not so easy
to trigger at will.  Using pm_test may increase your chances:

    # echo 0 > /sys/module/printk/parameters/console_suspend
    # echo platform > /sys/power/pm_test
    # echo mem > /sys/power/state

To fix this, make sure the network interface is quietened during
suspend.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2aa70f86
    • F
      net: systemport: Fix 64-bit stats deadlock · 7095c973
      由 Florian Fainelli 提交于 
      We can enter a deadlock situation because there is no sufficient protection
when ndo_get_stats64() runs in process context to guard against RX or TX NAPI
contexts running in softirq, this can lead to the following lockdep splat and
actual deadlock was experienced as well with an iperf session in the background
and a while loop doing ifconfig + ethtool.

[    5.780350] ================================
[    5.784679] WARNING: inconsistent lock state
[    5.789011] 4.13.0-rc7-02179-g32fae27c725d #70 Not tainted
[    5.794561] --------------------------------
[    5.798890] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[    5.804971] swapper/0/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
[    5.810175]  (&syncp->seq#2){+.?...}, at: [<c0768a28>] bcm_sysport_tx_reclaim+0x30/0x54
[    5.818327] {SOFTIRQ-ON-W} state was registered at:
[    5.823278]   bcm_sysport_get_stats64+0x17c/0x258
[    5.828053]   dev_get_stats+0x38/0xac
[    5.831776]   rtnl_fill_stats+0x30/0x118
[    5.835761]   rtnl_fill_ifinfo+0x538/0xe24
[    5.839921]   rtmsg_ifinfo_build_skb+0x6c/0xd8
[    5.844430]   rtmsg_ifinfo_event.part.5+0x14/0x44
[    5.849201]   rtmsg_ifinfo+0x20/0x28
[    5.852837]   register_netdevice+0x628/0x6b8
[    5.857171]   register_netdev+0x14/0x24
[    5.861051]   bcm_sysport_probe+0x30c/0x438
[    5.865280]   platform_drv_probe+0x50/0xb0
[    5.869418]   driver_probe_device+0x2e8/0x450
[    5.873817]   __driver_attach+0x104/0x120
[    5.877871]   bus_for_each_dev+0x7c/0xc0
[    5.881834]   bus_add_driver+0x1b0/0x270
[    5.885797]   driver_register+0x78/0xf4
[    5.889675]   do_one_initcall+0x54/0x190
[    5.893646]   kernel_init_freeable+0x144/0x1d0
[    5.898135]   kernel_init+0x8/0x110
[    5.901665]   ret_from_fork+0x14/0x2c
[    5.905363] irq event stamp: 24263
[    5.908804] hardirqs last  enabled at (24262): [<c08eecf0>] net_rx_action+0xc4/0x4e4
[    5.916624] hardirqs last disabled at (24263): [<c0a7da00>] _raw_spin_lock_irqsave+0x1c/0x98
[    5.925143] softirqs last  enabled at (24258): [<c022a7fc>] irq_enter+0x84/0x98
[    5.932524] softirqs last disabled at (24259): [<c022a918>] irq_exit+0x108/0x16c
[    5.939985]
[    5.939985] other info that might help us debug this:
[    5.946576]  Possible unsafe locking scenario:
[    5.946576]
[    5.952556]        CPU0
[    5.955031]        ----
[    5.957506]   lock(&syncp->seq#2);
[    5.960955]   <Interrupt>
[    5.963604]     lock(&syncp->seq#2);
[    5.967227]
[    5.967227]  *** DEADLOCK ***
[    5.967227]
[    5.973222] 1 lock held by swapper/0/0:
[    5.977092]  #0:  (&(&ring->lock)->rlock){..-...}, at: [<c0768a18>] bcm_sysport_tx_reclaim+0x20/0x54

So just remove the u64_stats_update_begin()/end() pair in ndo_get_stats64()
since it does not appear to be useful for anything. No inconsistency was
observed with either ifconfig or ethtool, global TX counts equal the sum of
per-queue TX counts on a 32-bit architecture.

Fixes: 10377ba7 ("net: systemport: Support 64bit statistics")
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7095c973
    • A
      net: vrf: avoid gcc-4.6 warning · ecf09117
      由 Arnd Bergmann 提交于 
      When building an allmodconfig kernel with gcc-4.6, we get a rather
odd warning:

drivers/net/vrf.c: In function ‘vrf_ip6_input_dst’:
drivers/net/vrf.c:964:3: error: initialized field with side-effects overwritten [-Werror]
drivers/net/vrf.c:964:3: error: (near initialization for ‘fl6’) [-Werror]

I have no idea what this warning is even trying to say, but it does
seem like a false positive. Reordering the initialization in to match
the structure definition gets rid of the warning, and might also avoid
whatever gcc thinks is wrong here.

Fixes: 9ff74384 ("net: vrf: Handle ipv6 multicast and link-local addresses")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ecf09117
    • H
      qed: remove unnecessary call to memset · 4739df62
      由 Himanshu Jha 提交于 
      call to memset to assign 0 value immediately after allocating
memory with kzalloc is unnecesaary as kzalloc allocates the memory
filled with 0 value.

Semantic patch used to resolve this issue:

@@
expression e,e2; constant c;
statement S;
@@

  e = kzalloc(e2, c);
  if(e == NULL) S
- memset(e, 0, e2);
Signed-off-by: NHimanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: NHimanshu Jha <himanshujha199640@gmail.com>
Acked-by: NSudarsana Kalluru <sudarsana.kalluru@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4739df62
    • K
      Input: i8042 - add Gigabyte P57 to the keyboard reset table · 697c5d8a
      由 Kai-Heng Feng 提交于 
      Similar to other Gigabyte laptops, the touchpad on P57 requires a
keyboard reset to detect Elantech touchpad correctly.

BugLink: https://bugs.launchpad.net/bugs/1594214Signed-off-by: NKai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
      697c5d8a
  15. 15 9月, 2017 2 次提交
    • B
      Revert "PCI: Avoid race while enabling upstream bridges" · 0f50a49e
      由 Bjorn Helgaas 提交于 
      This reverts commit 40f11adc.

Jens found that iwlwifi firmware loading failed on a Lenovo X1 Carbon,
gen4:

  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-34.ucode failed with error -2
  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2
  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2
  iwlwifi 0000:04:00.0: loaded firmware version 31.532993.0 op_mode iwlmvm
  iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
  ...
  iwlwifi 0000:04:00.0: Failed to load firmware chunk!
  iwlwifi 0000:04:00.0: Could not load the [0] uCode section
  iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110
  iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110

He bisected it to 40f11adc ("PCI: Avoid race while enabling upstream
bridges").  Revert that commit to fix the regression.

Link: http://lkml.kernel.org/r/4bcbcbc1-7c79-09f0-5071-bc2f53bf6574@kernel.dk
Fixes: 40f11adc ("PCI: Avoid race while enabling upstream bridges")
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
CC: Srinath Mannam <srinath.mannam@broadcom.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Luca Coelho <luca@coelho.fi>
CC: Johannes Berg <johannes@sipsolutions.net>
CC: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
      0f50a49e
    • C
      tg3: clean up redundant initialization of tnapi · 23f48222
      由 Colin Ian King 提交于 
      tnapi is being initialized and then immediately updated and
hence the initialiation is redundant.  Clean up the warning
by moving the declaration and initialization to the inside
of the for-loop.

Cleans up clang scan-build warning:
warning: Value stored to 'tnapi' during its initialization is never read
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      23f48222
  17. 14 9月, 2017 16 次提交
  19. 13 9月, 2017 3 次提交
    • A
      w90p910_ether: include linux/interrupt.h · 854426ef
      由 Arnd Bergmann 提交于 
      A randconfig build caused a compile failure:

drivers/net/ethernet/nuvoton/w90p910_ether.c: In function 'w90p910_ether_close':
drivers/net/ethernet/nuvoton/w90p910_ether.c:580:2: error: implicit declaration of function 'free_irq'; did you mean 'free_uid'? [-Werror=implicit-function-declaration]

Adding the correct include fixes the problem.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      854426ef
    • N
      net: bonding: fix tlb_dynamic_lb default value · f13ad104
      由 Nikolay Aleksandrov 提交于 
      Commit 8b426dc5 ("bonding: remove hardcoded value") changed the
default value for tlb_dynamic_lb which lead to either broken ALB mode
(since tlb_dynamic_lb can be changed only in TLB) or setting TLB mode
with tlb_dynamic_lb equal to 0.
The first issue was recently fixed by setting tlb_dynamic_lb to 1 always
when switching to ALB mode, but the default value is still wrong and
we'll enter TLB mode with tlb_dynamic_lb equal to 0 if the mode is
changed via netlink or sysfs. In order to restore the previous behaviour
and default value simply remove the mode check around the default param
initialization for tlb_dynamic_lb which will always set it to 1 as
before.

Fixes: 8b426dc5 ("bonding: remove hardcoded value")
Signed-off-by: NNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: NMahesh Bandewar <maheshb@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f13ad104
    • Y
      mlxsw: spectrum: Prevent mirred-related crash on removal · 6399ebcc
      由 Yuval Mintz 提交于 
      When removing the offloading of mirred actions under
matchall classifiers, mlxsw would find the destination port
associated with the offloaded action and utilize it for undoing
the configuration.

Depending on the order by which ports are removed, it's possible that
the destination port would get removed before the source port.
In such a scenario, when actions would be flushed for the source port
mlxsw would perform an illegal dereference as the destination port is
no longer listed.

Since the only item necessary for undoing the configuration on the
destination side is the port-id and that in turn is already maintained
by mlxsw on the source-port, simply stop trying to access the
destination port and use the port-id directly instead.

Fixes: 763b4b70 ("mlxsw: spectrum: Add support in matchall mirror TC offloading")
Signed-off-by: NYuval Mintz <yuvalm@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6399ebcc