Commit Graph

796793 Commits

Author SHA1 Message Date
Arnd Bergmann
3fc202e81d HID: asus: fix build warning wiht CONFIG_ASUS_WMI disabled
asus_wmi_evaluate_method() is an empty dummy function when CONFIG_ASUS_WMI
is disabled, or not reachable from a built-in device driver. This leads to
a theoretical evaluation of an uninitialized variable that the compiler
complains about, failing to check that the hardcoded return value makes
this an unreachable code path:

In file included from include/linux/printk.h:336,
                 from include/linux/kernel.h:14,
                 from include/linux/list.h:9,
                 from include/linux/dmi.h:5,
                 from drivers/hid/hid-asus.c:29:
drivers/hid/hid-asus.c: In function 'asus_input_configured':
include/linux/dynamic_debug.h:135:3: error: 'value' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   __dynamic_dev_dbg(&descriptor, dev, fmt, \
   ^~~~~~~~~~~~~~~~~
drivers/hid/hid-asus.c:359:6: note: 'value' was declared here
  u32 value;
      ^~~~~

With an extra IS_ENABLED() check, the warning goes away.

Fixes: 3b692c55e5 ("HID: asus: only support backlight when it's not driven by WMI")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-11-06 13:57:42 +01:00
Jiri Kosina
0c72442095 Merge branch 'master' into for-4.20/upstream-fixes
Pull in a merge commit that brought in 3b692c55e5 ("HID: asus: only
support backlight when it's not driven by WMI") so that fixup could be
applied on top of it.
2018-11-06 13:57:02 +01:00
Ard Biesheuvel
6282e916f7 ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm
Due to what appears to be a copy/paste error, the opening ENTRY()
of cpu_v7_hvc_switch_mm() lacks a matching ENDPROC(), and instead,
the one for cpu_v7_smc_switch_mm() is duplicated.

Given that it is ENDPROC() that emits the Thumb annotation, the
cpu_v7_hvc_switch_mm() routine will be called in ARM mode on a
Thumb2 kernel, resulting in the following splat:

  Internal error: Oops - undefined instruction: 0 [#1] SMP THUMB2
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-00030-g4d28ad89189d-dirty #488
  Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
  PC is at cpu_v7_hvc_switch_mm+0x12/0x18
  LR is at flush_old_exec+0x31b/0x570
  pc : [<c0316efe>]    lr : [<c04117c7>]    psr: 00000013
  sp : ee899e50  ip : 00000000  fp : 00000001
  r10: eda28f34  r9 : eda31800  r8 : c12470e0
  r7 : eda1fc00  r6 : eda53000  r5 : 00000000  r4 : ee88c000
  r3 : c0316eec  r2 : 00000001  r1 : eda53000  r0 : 6da6c000
  Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none

Note the 'ISA ARM' in the last line.

Fix this by using the correct name in ENDPROC().

Cc: <stable@vger.kernel.org>
Fixes: 10115105cb ("ARM: spectre-v2: add firmware based hardening")
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-11-06 10:56:16 +00:00
David S. Miller
a422757e8c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains the first batch of Netfilter fixes for
your net tree:

1) Fix splat with IPv6 defragmenting locally generated fragments,
   from Florian Westphal.

2) Fix Incorrect check for missing attribute in nft_osf.

3) Missing INT_MIN & INT_MAX definition for netfilter bridge uapi
   header, from Jiri Slaby.

4) Revert map lookup in nft_numgen, this is already possible with
   the existing infrastructure without this extension.

5) Fix wrong listing of set reference counter, make counter
   synchronous again, from Stefano Brivio.

6) Fix CIDR 0 in hash:net,port,net, from Eric Westbrook.

7) Fix allocation failure with large set, use kvcalloc().
   From Andrey Ryabinin.

8) No need to disable BH when fetch ip set comment, patch from
   Jozsef Kadlecsik.

9) Sanity check for valid sysfs entry in xt_IDLETIMER, from
   Taehee Yoo.

10) Fix suspicious rcu usage via ip_set() macro at netlink dump,
    from Jozsef Kadlecsik.

11) Fix setting default timeout via nfnetlink_cttimeout, this
    comes with preparation patch to add nf_{tcp,udp,...}_pernet()
    helper.

12) Allow ebtables table nat to be of filter type via nft_compat.
    From Florian Westphal.

13) Incorrect calculation of next bucket in early_drop, do no bump
    hash value, update bucket counter instead. From Vasily Khoruzhick.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:19:25 -08:00
Rasmus Villemoes
7131193157 net: alx: make alx_drv_name static
alx_drv_name is not used outside main.c, so there's no reason for it to
have external linkage.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:12:58 -08:00
Taehee Yoo
97adaddaa6 net: bpfilter: fix iptables failure if bpfilter_umh is disabled
When iptables command is executed, ip_{set/get}sockopt() try to upload
bpfilter.ko if bpfilter is enabled. if it couldn't find bpfilter.ko,
command is failed.
bpfilter.ko is generated if CONFIG_BPFILTER_UMH is enabled.
ip_{set/get}sockopt() only checks CONFIG_BPFILTER.
So that if CONFIG_BPFILTER is enabled and CONFIG_BPFILTER_UMH is disabled,
iptables command is always failed.

test config:
   CONFIG_BPFILTER=y
   # CONFIG_BPFILTER_UMH is not set

test command:
   %iptables -L
   iptables: No chain/target/match by that name.

Fixes: d2ba09c17a ("net: add skeleton of bpfilter kernel module")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:12:18 -08:00
Andrei Vagin
c34c128777 sock_diag: fix autoloading of the raw_diag module
IPPROTO_RAW isn't registred as an inet protocol, so
inet_protos[protocol] is always NULL for it.

Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>
Fixes: bf2ae2e4bf ("sock_diag: request _diag module only when the family or proto has been registered")
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:09:19 -08:00
Matwey V. Kornilov
d016b4a356 net: core: netpoll: Enable netconsole IPv6 link local address
There is no reason to discard using source link local address when
remote netconsole IPv6 address is set to be link local one.

The patch allows administrators to use IPv6 netconsole without
explicitly configuring source address:

    netconsole=@/,@fe80::5054:ff:fe2f:6012/

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:07:10 -08:00
Alexey Kodanev
e22d0bfa09 ipv6: properly check return value in inet6_dump_all()
Make sure we call fib6_dump_end() if it happens that skb->len
is zero. rtnl_dump_all() can reset cb->args on the next loop
iteration there.

Fixes: 08e814c9e8 ("net/ipv6: Bail early if user only wants cloned entries")
Fixes: ae677bbb44 ("net: Don't return invalid table id error when dumping all families")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:04:54 -08:00
Alexey Kodanev
5e1acb4afa rtnetlink: restore handling of dumpit return value in rtnl_dump_all()
For non-zero return from dumpit() we should break the loop
in rtnl_dump_all() and return the result. Otherwise, e.g.,
we could get the memory leak in inet6_dump_fib() [1]. The
pointer to the allocated struct fib6_walker there (saved
in cb->args) can be lost, reset on the next iteration.

Fix it by partially restoring the previous behavior before
commit c63586dc9b ("net: rtnl_dump_all needs to propagate
error from dumpit function"). The returned error from
dumpit() is still passed further.

[1]:
unreferenced object 0xffff88001322a200 (size 96):
  comm "sshd", pid 1484, jiffies 4296032768 (age 1432.542s)
  hex dump (first 32 bytes):
    00 01 00 00 00 00 ad de 00 02 00 00 00 00 ad de  ................
    18 09 41 36 00 88 ff ff 18 09 41 36 00 88 ff ff  ..A6......A6....
  backtrace:
    [<0000000095846b39>] kmem_cache_alloc_trace+0x151/0x220
    [<000000007d12709f>] inet6_dump_fib+0x68d/0x940
    [<000000002775a316>] rtnl_dump_all+0x1d9/0x2d0
    [<00000000d7cd302b>] netlink_dump+0x945/0x11a0
    [<000000002f43485f>] __netlink_dump_start+0x55d/0x800
    [<00000000f76bbeec>] rtnetlink_rcv_msg+0x4fa/0xa00
    [<000000009b5761f3>] netlink_rcv_skb+0x29c/0x420
    [<0000000087a1dae1>] rtnetlink_rcv+0x15/0x20
    [<00000000691b703b>] netlink_unicast+0x4e3/0x6c0
    [<00000000b5be0204>] netlink_sendmsg+0x7f2/0xba0
    [<0000000096d2aa60>] sock_sendmsg+0xba/0xf0
    [<000000008c1b786f>] __sys_sendto+0x1e4/0x330
    [<0000000019587b3f>] __x64_sys_sendto+0xe1/0x1a0
    [<00000000071f4d56>] do_syscall_64+0x9f/0x300
    [<000000002737577f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
    [<0000000057587684>] 0xffffffffffffffff

Fixes: c63586dc9b ("net: rtnl_dump_all needs to propagate error from dumpit function")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 17:04:54 -08:00
Jeff Barnhill
6915ed86cc net/ipv6: Move anycast init/cleanup functions out of CONFIG_PROC_FS
Move the anycast.c init and cleanup functions which were inadvertently
added inside the CONFIG_PROC_FS definition.

Fixes: 2384d02520 ("net/ipv6: Add anycast addresses to a global hashtable")
Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-05 13:36:27 -08:00
Aaro Koskinen
fd5ba6ee31 arm64: dts: stratix10: fix multicast filtering
On Stratix 10, the EMAC has 256 hash buckets for multicast filtering. This
needs to be specified in DTS, otherwise the stmmac driver defaults to 64
buckets and initializes the filter incorrectly. As a result, e.g. valid
IPv6 multicast traffic ends up being dropped.

Fixes: 78cd6a9d8e ("arm64: dts: Add base stratix 10 dtsi")
Cc: stable@vger.kernel.org
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-11-05 13:17:33 -06:00
Martin Schwidefsky
163c8d54a9 compiler: remove __no_sanitize_address_or_inline again
The __no_sanitize_address_or_inline and __no_kasan_or_inline defines
are almost identical. The only difference is that __no_kasan_or_inline
does not have the 'notrace' attribute.

To be able to replace __no_sanitize_address_or_inline with the older
definition, add 'notrace' to __no_kasan_or_inline and change to two
users of __no_sanitize_address_or_inline in the s390 code.

The 'notrace' option is necessary for e.g. the __load_psw_mask function
in arch/s390/include/asm/processor.h. Without the option it is possible
to trace __load_psw_mask which leads to kernel stack overflow.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pointed-out-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-11-05 08:14:18 -08:00
Masami Hiramatsu
ee474b81fe tracing/kprobes: Fix strpbrk() argument order
Fix strpbrk()'s argument order, it must pass acceptable string
in 2nd argument. Note that this can cause a kernel panic where
it recovers backup character to code->data.

Link: http://lkml.kernel.org/r/154108256792.2604.1816052586385217811.stgit@devbox

Fixes: a6682814f3 ("tracing/kprobes: Allow kprobe-events to record module symbol")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-11-05 09:47:14 -05:00
Olof Johansson
6ff6bc46c0 i.MX fixes for 4.20:
- Add boot-on and always-on for imx6sx-sdb phy regulator to fix enet
    resume problem, which is exposed by commit ("regulator: fixed:
    Convert to use GPIO descriptor only").
  - Fix improperly quoted stdout-path values for imx53-ppd and
    vf610m4-colibri board.
  - Fix the typo of compatible string "fs,imx6sll-i2c" which should be
    "fsl,imx6sll-i2c".
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Merge tag 'imx-fixes-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.20:
 - Add boot-on and always-on for imx6sx-sdb phy regulator to fix enet
   resume problem, which is exposed by commit ("regulator: fixed:
   Convert to use GPIO descriptor only").
 - Fix improperly quoted stdout-path values for imx53-ppd and
   vf610m4-colibri board.
 - Fix the typo of compatible string "fs,imx6sll-i2c" which should be
   "fsl,imx6sll-i2c".

* tag 'imx-fixes-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6sx-sdb: Fix enet phy regulator
  ARM: dts: fsl: Fix improperly quoted stdout-path values
  ARM: dts: imx6sll: fix typo for fsl,imx6sll-i2c node

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-05 06:39:40 -08:00
Olof Johansson
f55275bcc7 ARM: defconfig: Disable PREEMPT again on multi_v7
I should have let this soak for a while in linux-next, since we have at
least one board that hit a regression from it. Revert from 4.20-rc, and
we'll queue it for next merge window once regression is fixed.

This reverts commit 513eb98595.

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-05 06:34:09 -08:00
Sergei Shtylyov
eab53fdfd6 arm64: dts: renesas: condor: switch from EtherAVB to GEther
The "official" Condor boards have always been wired to mount NFS via
GEther, not EtherAVB -- the boards resoldered for EtherAVB were local
to Cogent Embedded, so we've been having an unpleasant situation where
a "normal" Condor board still can't mount NFS (unless an EtherAVB PHY
extension board is plugged in). Switch from EtherAVB to GEther at last!

Fixes: 8091788f3d ("arm64: dts: renesas: condor: add EtherAVB support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-11-05 15:08:44 +01:00
Fabrizio Castro
058ad7b6aa dt-bindings: arm: Fix RZ/G2E part number
Fix RZ/G2E part number from its description.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-11-05 15:08:44 +01:00
Kuninori Morimoto
aab7a2414b arm64: dts: renesas: r8a7795: add missing dma-names on hscif2
hscif2 has 4 dmas, but has only 2 dma-names.
This patch add missing dma-names.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: e0f0bda793 ("arm64: dts: renesas: r8a7795: sort subnodes
of the soc node")
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-11-05 15:08:44 +01:00
Jens Axboe
6da4b3ab9a genirq/affinity: Add support for allocating interrupt sets
A driver may have a need to allocate multiple sets of MSI/MSI-X interrupts,
and have them appropriately affinitized.

Add support for defining a number of sets in the irq_affinity structure, of
varying sizes, and get each set affinitized correctly across the machine.

[ tglx: Minor changelog tweaks ]

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Cc: linux-block@vger.kernel.org
Link: https://lkml.kernel.org/r/20181102145951.31979-5-ming.lei@redhat.com
2018-11-05 12:16:27 +01:00
Ming Lei
060746d9e3 genirq/affinity: Pass first vector to __irq_build_affinity_masks()
No functional change.

Prepares for support of allocating and affinitizing sets of interrupts, in
which each set of interrupts needs a full two stage spreading. The first
vector argument is necessary for this so the affinitizing starts from the
first vector of each set.

[ tglx: Minor changelog tweaks ]

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Cc: Hannes Reinecke <hare@suse.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Link: https://lkml.kernel.org/r/20181102145951.31979-4-ming.lei@redhat.com
2018-11-05 12:16:26 +01:00
Ming Lei
5c903e108d genirq/affinity: Move two stage affinity spreading into a helper function
No functional change. Prepares for supporting allocating and affinitizing
interrupt sets.

[ tglx: Minor changelog tweaks ]

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Cc: Hannes Reinecke <hare@suse.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Link: https://lkml.kernel.org/r/20181102145951.31979-3-ming.lei@redhat.com
2018-11-05 12:16:26 +01:00
Long Li
b825921990 genirq/affinity: Spread IRQs to all available NUMA nodes
If the number of NUMA nodes exceeds the number of MSI/MSI-X interrupts
which are allocated for a device, the interrupt affinity spreading code
fails to spread them across all nodes.

The reason is, that the spreading code starts from node 0 and continues up
to the number of interrupts requested for allocation. This leaves the nodes
past the last interrupt unused.

This results in interrupt concentration on the first nodes which violates
the assumption of the block layer that all nodes are covered evenly. As a
consequence the NUMA nodes above the number of interrupts are all assigned
to hardware queue 0 and therefore NUMA node 0, which results in bad
performance and has CPU hotplug implications, because queue 0 gets shut
down when the last CPU of node 0 is offlined.

Go over all NUMA nodes and assign them round-robin to all requested
interrupts to solve this.

[ tglx: Massaged changelog ]

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Link: https://lkml.kernel.org/r/20181102180248.13583-1-longli@linuxonhyperv.com
2018-11-05 12:16:26 +01:00
Leonard Crestez
1ad9fb750a ARM: dts: imx6sx-sdb: Fix enet phy regulator
Bindings for "fixed-regulator" only explicitly support "gpio" property,
not "gpios". Fix by correcting the property name.

The enet PHYs on imx6sx-sdb needs to be explicitly reset after a power
cycle, this can be handled by the phy-reset-gpios property. Sadly this
is not handled on suspend: the fec driver turns phy-supply off but
doesn't assert phy-reset-gpios again on resume.

Since additional phy-level work is required to support powering off the
phy in suspend fix the problem by just marking the regulator as
"boot-on" "always-on" so that it's never turned off. This behavior is
equivalent to older releases.

Keep the phy-reset-gpios property on fec anyway because it is a correct
description of board design.

This issue was exposed by commit efdfeb079c ("regulator: fixed:
Convert to use GPIO descriptor only") which causes the "gpios" property
to also be parsed. Before that commit the "gpios" property had no
effect, PHY reset was only handled in the the bootloader.

This fixes linux-next boot failures previously reported here:
 https://lore.kernel.org/patchwork/patch/982437/#1177900
 https://lore.kernel.org/patchwork/patch/994091/#1178304

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-11-05 10:11:04 +08:00
Rob Herring
1af6ab3bac ARM: dts: fsl: Fix improperly quoted stdout-path values
A quoted label reference doesn't expand to the node path and is taken as
a literal string. Dropping the quotes can fix this unless the baudrate
string is appended in which case we have to use the alias.

At least on VF610, the problem was masked by setting the console in
bootargs. Use the alias syntax with baudrate parameter so we can drop
setting the console in bootargs.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-11-05 10:09:02 +08:00
Oleksij Rempel
438ad09af5 ARM: dts: imx6sll: fix typo for fsl,imx6sll-i2c node
Fix the type of compatible string "fs,imx6sll-i2c" which should be
"fsl,imx6sll-i2c".

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-11-05 10:09:02 +08:00
Jarod Wilson
ea53abfab9 bonding/802.3ad: fix link_failure_count tracking
Commit 4d2c0cda07 set slave->link to
BOND_LINK_DOWN for 802.3ad bonds whenever invalid speed/duplex values
were read, to fix a problem with slaves getting into weird states, but
in the process, broke tracking of link failures, as going straight to
BOND_LINK_DOWN when a link is indeed down (cable pulled, switch rebooted)
means we broke out of bond_miimon_inspect()'s BOND_LINK_DOWN case because
!link_state was already true, we never incremented commit, and never got
a chance to call bond_miimon_commit(), where slave->link_failure_count
would be incremented. I believe the simple fix here is to mark the slave
as BOND_LINK_FAIL, and let bond_miimon_inspect() transition the link from
_FAIL to either _UP or _DOWN, and in the latter case, we now get proper
incrementing of link_failure_count again.

Fixes: 4d2c0cda07 ("bonding: speed/duplex update at NETDEV_UP event")
CC: Mahesh Bandewar <maheshb@google.com>
CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-04 16:44:44 -08:00
Holger Hoffstätte
0432e83319 net: phy: realtek: fix RTL8201F sysfs name
Since 4.19 the following error in sysfs has appeared when using the
r8169 NIC driver:

$cd /sys/module/realtek/drivers
$ls -l
ls: cannot access 'mdio_bus:RTL8201F 10/100Mbps Ethernet': No such file or directory
[..garbled dir entries follow..]

Apparently the forward slash in "10/100Mbps Ethernet" is interpreted
as directory separator that leads nowhere, and was introduced in commit
513588dd44 ("net: phy: realtek: add RTL8201F phy-id and functions").

Fix this by removing the offending slash in the driver name.

Other drivers in net/phy seem to have the same problem, but I cannot
test/verify them.

Fixes: 513588dd44 ("net: phy: realtek: add RTL8201F phy-id and functions")
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-04 16:43:17 -08:00
Geert Uytterhoeven
e3e61f01d7 hwmon: (ibmpowernv) Remove bogus __init annotations
If gcc decides not to inline make_sensor_label():

    WARNING: vmlinux.o(.text+0x4df549c): Section mismatch in reference from the function .create_device_attrs() to the function .init.text:.make_sensor_label()
    The function .create_device_attrs() references
    the function __init .make_sensor_label().
    This is often because .create_device_attrs lacks a __init
    annotation or the annotation of .make_sensor_label is wrong.

As .probe() can be called after freeing of __init memory, all __init
annotiations in the driver are bogus, and should be removed.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-11-04 15:55:12 -08:00
Dmitry Osipenko
74e3512731 hwmon: (core) Fix double-free in __hwmon_device_register()
Fix double-free that happens when thermal zone setup fails, see KASAN log
below.

==================================================================
BUG: KASAN: double-free or invalid-free in __hwmon_device_register+0x5dc/0xa7c

CPU: 0 PID: 132 Comm: kworker/0:2 Tainted: G    B             4.19.0-rc8-next-20181016-00042-gb52cd80401e9-dirty #41
Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
Backtrace:
[<c0110540>] (dump_backtrace) from [<c0110944>] (show_stack+0x20/0x24)
[<c0110924>] (show_stack) from [<c105cb08>] (dump_stack+0x9c/0xb0)
[<c105ca6c>] (dump_stack) from [<c02fdaec>] (print_address_description+0x68/0x250)
[<c02fda84>] (print_address_description) from [<c02fd4ac>] (kasan_report_invalid_free+0x68/0x88)
[<c02fd444>] (kasan_report_invalid_free) from [<c02fc85c>] (__kasan_slab_free+0x1f4/0x200)
[<c02fc668>] (__kasan_slab_free) from [<c02fd0c0>] (kasan_slab_free+0x14/0x18)
[<c02fd0ac>] (kasan_slab_free) from [<c02f9c6c>] (kfree+0x90/0x294)
[<c02f9bdc>] (kfree) from [<c0b41bbc>] (__hwmon_device_register+0x5dc/0xa7c)
[<c0b415e0>] (__hwmon_device_register) from [<c0b421e8>] (hwmon_device_register_with_info+0xa0/0xa8)
[<c0b42148>] (hwmon_device_register_with_info) from [<c0b42324>] (devm_hwmon_device_register_with_info+0x74/0xb4)
[<c0b422b0>] (devm_hwmon_device_register_with_info) from [<c0b4481c>] (lm90_probe+0x414/0x578)
[<c0b44408>] (lm90_probe) from [<c0aeeff4>] (i2c_device_probe+0x35c/0x384)
[<c0aeec98>] (i2c_device_probe) from [<c08776cc>] (really_probe+0x290/0x3e4)
[<c087743c>] (really_probe) from [<c0877a2c>] (driver_probe_device+0x80/0x1c4)
[<c08779ac>] (driver_probe_device) from [<c0877da8>] (__device_attach_driver+0x104/0x11c)
[<c0877ca4>] (__device_attach_driver) from [<c0874dd8>] (bus_for_each_drv+0xa4/0xc8)
[<c0874d34>] (bus_for_each_drv) from [<c08773b0>] (__device_attach+0xf0/0x15c)
[<c08772c0>] (__device_attach) from [<c0877e24>] (device_initial_probe+0x1c/0x20)
[<c0877e08>] (device_initial_probe) from [<c08762f4>] (bus_probe_device+0xdc/0xec)
[<c0876218>] (bus_probe_device) from [<c0876a08>] (deferred_probe_work_func+0xa8/0xd4)
[<c0876960>] (deferred_probe_work_func) from [<c01527c4>] (process_one_work+0x3dc/0x96c)
[<c01523e8>] (process_one_work) from [<c01541e0>] (worker_thread+0x4ec/0x8bc)
[<c0153cf4>] (worker_thread) from [<c015b238>] (kthread+0x230/0x240)
[<c015b008>] (kthread) from [<c01010bc>] (ret_from_fork+0x14/0x38)
Exception stack(0xcf743fb0 to 0xcf743ff8)
3fa0:                                     00000000 00000000 00000000 00000000
3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
3fe0: 00000000 00000000 00000000 00000000 00000013 00000000

Allocated by task 132:
 kasan_kmalloc.part.1+0x58/0xf4
 kasan_kmalloc+0x90/0xa4
 kmem_cache_alloc_trace+0x90/0x2a0
 __hwmon_device_register+0xbc/0xa7c
 hwmon_device_register_with_info+0xa0/0xa8
 devm_hwmon_device_register_with_info+0x74/0xb4
 lm90_probe+0x414/0x578
 i2c_device_probe+0x35c/0x384
 really_probe+0x290/0x3e4
 driver_probe_device+0x80/0x1c4
 __device_attach_driver+0x104/0x11c
 bus_for_each_drv+0xa4/0xc8
 __device_attach+0xf0/0x15c
 device_initial_probe+0x1c/0x20
 bus_probe_device+0xdc/0xec
 deferred_probe_work_func+0xa8/0xd4
 process_one_work+0x3dc/0x96c
 worker_thread+0x4ec/0x8bc
 kthread+0x230/0x240
 ret_from_fork+0x14/0x38
   (null)

Freed by task 132:
 __kasan_slab_free+0x12c/0x200
 kasan_slab_free+0x14/0x18
 kfree+0x90/0x294
 hwmon_dev_release+0x1c/0x20
 device_release+0x4c/0xe8
 kobject_put+0xac/0x11c
 device_unregister+0x2c/0x30
 __hwmon_device_register+0xa58/0xa7c
 hwmon_device_register_with_info+0xa0/0xa8
 devm_hwmon_device_register_with_info+0x74/0xb4
 lm90_probe+0x414/0x578
 i2c_device_probe+0x35c/0x384
 really_probe+0x290/0x3e4
 driver_probe_device+0x80/0x1c4
 __device_attach_driver+0x104/0x11c
 bus_for_each_drv+0xa4/0xc8
 __device_attach+0xf0/0x15c
 device_initial_probe+0x1c/0x20
 bus_probe_device+0xdc/0xec
 deferred_probe_work_func+0xa8/0xd4
 process_one_work+0x3dc/0x96c
 worker_thread+0x4ec/0x8bc
 kthread+0x230/0x240
 ret_from_fork+0x14/0x38
   (null)

Cc: <stable@vger.kernel.org> # v4.15+
Fixes: 47c332deb8 ("hwmon: Deal with errors from the thermal subsystem")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-11-04 15:55:12 -08:00
Linus Torvalds
651022382c Linux 4.20-rc1 2018-11-04 15:37:52 -08:00
Linus Torvalds
42bd06e93d This pull request contains updates for UBIFS:
- Full filesystem authentication feature,
   UBIFS is now able to have the whole filesystem structure
   authenticated plus user data encrypted and authenticated.
 - Minor cleanups
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Merge tag 'tags/upstream-4.20-rc1' of git://git.infradead.org/linux-ubifs

Pull UBIFS updates from Richard Weinberger:

 - Full filesystem authentication feature, UBIFS is now able to have the
   whole filesystem structure authenticated plus user data encrypted and
   authenticated.

 - Minor cleanups

* tag 'tags/upstream-4.20-rc1' of git://git.infradead.org/linux-ubifs: (26 commits)
  ubifs: Remove unneeded semicolon
  Documentation: ubifs: Add authentication whitepaper
  ubifs: Enable authentication support
  ubifs: Do not update inode size in-place in authenticated mode
  ubifs: Add hashes and HMACs to default filesystem
  ubifs: authentication: Authenticate super block node
  ubifs: Create hash for default LPT
  ubfis: authentication: Authenticate master node
  ubifs: authentication: Authenticate LPT
  ubifs: Authenticate replayed journal
  ubifs: Add auth nodes to garbage collector journal head
  ubifs: Add authentication nodes to journal
  ubifs: authentication: Add hashes to index nodes
  ubifs: Add hashes to the tree node cache
  ubifs: Create functions to embed a HMAC in a node
  ubifs: Add helper functions for authentication support
  ubifs: Add separate functions to init/crc a node
  ubifs: Format changes for authentication support
  ubifs: Store read superblock node
  ubifs: Drop write_node
  ...
2018-11-04 14:46:04 -08:00
Linus Torvalds
4710e78940 NFS client bugfixes for Linux 4.20
Highlights include:
 
 Bugfixes:
 - Fix build issues on architectures that don't provide 64-bit cmpxchg
 
 Cleanups:
 - Fix a spelling mistake
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Merge tag 'nfs-for-4.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Bugfix:
   - Fix build issues on architectures that don't provide 64-bit cmpxchg

  Cleanups:
   - Fix a spelling mistake"

* tag 'nfs-for-4.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: fix spelling mistake, EACCESS -> EACCES
  SUNRPC: Use atomic(64)_t for seq_send(64)
2018-11-04 08:20:09 -08:00
Linus Torvalds
35e7452442 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more timer updates from Thomas Gleixner:
 "A set of commits for the new C-SKY architecture timers"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  dt-bindings: timer: gx6605s SOC timer
  clocksource/drivers/c-sky: Add gx6605s SOC system timer
  dt-bindings: timer: C-SKY Multi-processor timer
  clocksource/drivers/c-sky: Add C-SKY SMP timer
2018-11-04 08:15:15 -08:00
Linus Torvalds
04578e8441 NTB IDT thermal changes and hook into hwmon, ntb_netdev clean-up of
private struct, and a few bug fixes.
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Merge tag 'ntb-4.20' of git://github.com/jonmason/ntb

Pull NTB updates from Jon Mason:
 "Fairly minor changes and bug fixes:

  NTB IDT thermal changes and hook into hwmon, ntb_netdev clean-up of
  private struct, and a few bug fixes"

* tag 'ntb-4.20' of git://github.com/jonmason/ntb:
  ntb: idt: Alter the driver info comments
  ntb: idt: Discard temperature sensor IRQ handler
  ntb: idt: Add basic hwmon sysfs interface
  ntb: idt: Alter temperature read method
  ntb_netdev: Simplify remove with client device drvdata
  NTB: transport: Try harder to alloc an aligned MW buffer
  ntb: ntb_transport: Mark expected switch fall-throughs
  ntb: idt: Set PCIe bus address to BARLIMITx
  NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks
  ntb: intel: fix return value for ndev_vec_mask()
  ntb_netdev: fix sleep time mismatch
2018-11-04 08:12:44 -08:00
Xin Long
12480e3b16 sctp: define SCTP_SS_DEFAULT for Stream schedulers
According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.

SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.

Fixes: 5bbbbe32a4 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:40:29 -07:00
Xin Long
fd82d61ba1 sctp: fix strchange_flags name for Stream Change Event
As defined in rfc6525#section-6.1.3, SCTP_STREAM_CHANGE_DENIED
and SCTP_STREAM_CHANGE_FAILED should be used instead of
SCTP_ASSOC_CHANGE_DENIED and SCTP_ASSOC_CHANGE_FAILED.

To keep the compatibility, fix it by adding two macros.

Fixes: b444153fb5 ("sctp: add support for generating add stream change event notification")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:38:08 -07:00
David S. Miller
1e2d3c4929 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2018-11-03

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix BPF prog kallsyms and bpf_prog_get_info_by_fd() jited address export
   to not use page start but actual start instead to work correctly with
   profiling e.g. finding hot instructions from stack traces. Also fix latter
   with regards to dumping address and jited len for !multi prog, from Song.

2) Fix bpf_prog_get_info_by_fd() for !root to zero info.nr_jited_func_lens
   instead of leaving the user provided length, from Daniel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:33:35 -07:00
Shalom Toledo
96801552f8 mlxsw: spectrum: Fix IP2ME CPU policer configuration
The CPU policer used to police packets being trapped via a local route
(IP2ME) was incorrectly configured to police based on bytes per second
instead of packets per second.

Change the policer to police based on packets per second and avoid
packet loss under certain circumstances.

Fixes: 9148e7cf73 ("mlxsw: spectrum: Add policers for trap groups")
Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:31:42 -07:00
Arnd Bergmann
a277d516de openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELS
When CONFIG_CC_OPTIMIZE_FOR_DEBUGGING is enabled, the compiler
fails to optimize out a dead code path, which leads to a link failure:

net/openvswitch/conntrack.o: In function `ovs_ct_set_labels':
conntrack.c:(.text+0x2e60): undefined reference to `nf_connlabels_replace'

In this configuration, we can take a shortcut, and completely
remove the contrack label code. This may also help the regular
optimization.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:28:44 -07:00
Arnd Bergmann
9261921052 qed: fix link config error handling
gcc-8 notices that qed_mcp_get_transceiver_data() may fail to
return a result to the caller:

drivers/net/ethernet/qlogic/qed/qed_mcp.c: In function 'qed_mcp_trans_speed_mask':
drivers/net/ethernet/qlogic/qed/qed_mcp.c:1955:2: error: 'transceiver_type' may be used uninitialized in this function [-Werror=maybe-uninitialized]

When an error is returned by qed_mcp_get_transceiver_data(), we
should propagate that to the caller of qed_mcp_trans_speed_mask()
rather than continuing with uninitialized data.

Fixes: c56a8be7e7 ("qed: Add supported link and advertise link to display in ethtool.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 19:27:33 -07:00
Linus Torvalds
71e5602817 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "A memory (under-)allocation fix and a comment fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/topology: Fix off by one bug
  sched/rt: Update comment in pick_next_task_rt()
2018-11-03 18:37:09 -07:00
Linus Torvalds
601a88077c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "A number of fixes and some late updates:

   - make in_compat_syscall() behavior on x86-32 similar to other
     platforms, this touches a number of generic files but is not
     intended to impact non-x86 platforms.

   - objtool fixes

   - PAT preemption fix

   - paravirt fixes/cleanups

   - cpufeatures updates for new instructions

   - earlyprintk quirk

   - make microcode version in sysfs world-readable (it is already
     world-readable in procfs)

   - minor cleanups and fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  compat: Cleanup in_compat_syscall() callers
  x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT
  objtool: Support GCC 9 cold subfunction naming scheme
  x86/numa_emulation: Fix uniform-split numa emulation
  x86/paravirt: Remove unused _paravirt_ident_32
  x86/mm/pat: Disable preemption around __flush_tlb_all()
  x86/paravirt: Remove GPL from pv_ops export
  x86/traps: Use format string with panic() call
  x86: Clean up 'sizeof x' => 'sizeof(x)'
  x86/cpufeatures: Enumerate MOVDIR64B instruction
  x86/cpufeatures: Enumerate MOVDIRI instruction
  x86/earlyprintk: Add a force option for pciserial device
  objtool: Support per-function rodata sections
  x86/microcode: Make revision and processor flags world-readable
2018-11-03 18:25:17 -07:00
Linus Torvalds
01897f3e05 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates and fixes from Ingo Molnar:
 "These are almost all tooling updates: 'perf top', 'perf trace' and
  'perf script' fixes and updates, an UAPI header sync with the merge
  window versions, license marker updates, much improved Sparc support
  from David Miller, and a number of fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (66 commits)
  perf intel-pt/bts: Calculate cpumode for synthesized samples
  perf intel-pt: Insert callchain context into synthesized callchains
  perf tools: Don't clone maps from parent when synthesizing forks
  perf top: Start display thread earlier
  tools headers uapi: Update linux/if_link.h header copy
  tools headers uapi: Update linux/netlink.h header copy
  tools headers: Sync the various kvm.h header copies
  tools include uapi: Update linux/mmap.h copy
  perf trace beauty: Use the mmap flags table generated from headers
  perf beauty: Wire up the mmap flags table generator to the Makefile
  perf beauty: Add a generator for MAP_ mmap's flag constants
  tools include uapi: Update asound.h copy
  tools arch uapi: Update asm-generic/unistd.h and arm64 unistd.h copies
  tools include uapi: Update linux/fs.h copy
  perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}
  perf cs-etm: Correct CPU mode for samples
  perf unwind: Take pgoff into account when reporting elf to libdwfl
  perf top: Do not use overwrite mode by default
  perf top: Allow disabling the overwrite mode
  perf trace: Beautify mount's first pathname arg
  ...
2018-11-03 18:13:43 -07:00
Linus Torvalds
e9ebc2151f Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
 "An irqchip driver fix and a memory (over-)allocation fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function
  irq/matrix: Fix memory overallocation
2018-11-03 18:12:09 -07:00
Peter Zijlstra
993f0b0510 sched/topology: Fix off by one bug
With the addition of the NUMA identity level, we increased @level by
one and will run off the end of the array in the distance sort loop.

Fixed: 051f3ca02e ("sched/topology: Introduce NUMA identity node sched domain")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-04 00:40:03 +01:00
Ingo Molnar
23a12ddee1 Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-03 23:42:16 +01:00
Yunsheng Lin
e8ccbb7d2f net: hns3: Fix for out-of-bounds access when setting pfc back pressure
The vport should be initialized to hdev->vport for each bp group,
otherwise it will cause out-of-bounds access and bp setting not
correct problem.

[   35.254124] BUG: KASAN: slab-out-of-bounds in hclge_pause_setup_hw+0x2a0/0x3f8 [hclge]
[   35.254126] Read of size 2 at addr ffff803b6651581a by task kworker/0:1/14

[   35.254132] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.19.0-rc7-hulk+ #85
[   35.254133] Hardware name: Huawei D06/D06, BIOS Hisilicon D06 UEFI RC0 - B052 (V0.52) 09/14/2018
[   35.254141] Workqueue: events work_for_cpu_fn
[   35.254144] Call trace:
[   35.254147]  dump_backtrace+0x0/0x2f0
[   35.254149]  show_stack+0x24/0x30
[   35.254154]  dump_stack+0x110/0x184
[   35.254157]  print_address_description+0x168/0x2b0
[   35.254160]  kasan_report+0x184/0x310
[   35.254162]  __asan_load2+0x7c/0xa0
[   35.254170]  hclge_pause_setup_hw+0x2a0/0x3f8 [hclge]
[   35.254177]  hclge_tm_init_hw+0x794/0x9f0 [hclge]
[   35.254184]  hclge_tm_schd_init+0x48/0x58 [hclge]
[   35.254191]  hclge_init_ae_dev+0x778/0x1168 [hclge]
[   35.254196]  hnae3_register_ae_dev+0x14c/0x298 [hnae3]
[   35.254206]  hns3_probe+0x88/0xa8 [hns3]
[   35.254210]  local_pci_probe+0x7c/0xf0
[   35.254212]  work_for_cpu_fn+0x34/0x50
[   35.254214]  process_one_work+0x4d4/0xa38
[   35.254216]  worker_thread+0x55c/0x8d8
[   35.254219]  kthread+0x1b0/0x1b8
[   35.254222]  ret_from_fork+0x10/0x1c

[   35.254224] The buggy address belongs to the page:
[   35.254228] page:ffff7e00ed994400 count:1 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0
[   35.273835] flags: 0xfffff8000008000(head)
[   35.282007] raw: 0fffff8000008000 dead000000000100 dead000000000200 0000000000000000
[   35.282010] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   35.282012] page dumped because: kasan: bad access detected

[   35.282014] Memory state around the buggy address:
[   35.282017]  ffff803b66515700: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   35.282019]  ffff803b66515780: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   35.282021] >ffff803b66515800: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   35.282022]                             ^
[   35.282024]  ffff803b66515880: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   35.282026]  ffff803b66515900: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   35.282028] ==================================================================
[   35.282029] Disabling lock debugging due to kernel taint
[   35.282747] hclge driver initialization finished.

Fixes: 67bf2541f4 ("net: hns3: Fixes the back pressure setting when sriov is enabled")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 15:41:58 -07:00
David S. Miller
cb53fd54e3 Merge branch 'net-bql-better-deal-with-GSO'
Eric Dumazet says:

====================
net: bql: better deal with GSO

While BQL bulk dequeue works well for TSO packets, it is
not very efficient as soon as GSO is involved.

On a GSO only workload (UDP or TCP), this patch series
can save about 8 % of cpu cycles on a 40Gbit mlx4 NIC,
by keeping optimal batching, and avoiding expensive
doorbells, qdisc requeues and reschedules.

This patch series :

- Add __netdev_tx_sent_queue() so that drivers
  can implement efficient BQL and xmit_more support.

- Implement a work around in dev_hard_start_xmit()
  for drivers not using __netdev_tx_sent_queue()

- changes mlx4 to use __netdev_tx_sent_queue()

v2: Tariq and Willem feedback addressed.
    added __netdev_tx_sent_queue() (Willem suggestion)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 15:40:01 -07:00
Eric Dumazet
c297344435 net/mlx4_en: use __netdev_tx_sent_queue()
doorbell only depends on xmit_more and netif_tx_queue_stopped()

Using __netdev_tx_sent_queue() avoids messing with BQL stop flag,
and is more generic.

This patch increases performance on GSO workload by keeping
doorbells to the minimum required.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 15:40:01 -07:00