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Filename Latest commit message Latest commit date
Taehee Yoo 5e5eaf92b3 hsr: reset network header when supervision frame is created 
commit 3ed0a1d563903bdb4b4c36c58c4d9c1bcb23a6e6 upstream.

The supervision frame is L2 frame.
When supervision frame is created, hsr module doesn't set network header.
If tap routine is enabled, dev_queue_xmit_nit() is called and it checks
network_header. If network_header pointer wasn't set(or invalid),
it resets network_header and warns.
In order to avoid unnecessary warning message, resetting network_header
is needed.

Test commands:
    ip netns add nst
    ip link add veth0 type veth peer name veth1
    ip link add veth2 type veth peer name veth3
    ip link set veth1 netns nst
    ip link set veth3 netns nst
    ip link set veth0 up
    ip link set veth2 up
    ip link add hsr0 type hsr slave1 veth0 slave2 veth2
    ip a a 192.168.100.1/24 dev hsr0
    ip link set hsr0 up
    ip netns exec nst ip link set veth1 up
    ip netns exec nst ip link set veth3 up
    ip netns exec nst ip link add hsr1 type hsr slave1 veth1 slave2 veth3
    ip netns exec nst ip a a 192.168.100.2/24 dev hsr1
    ip netns exec nst ip link set hsr1 up
    tcpdump -nei veth0

Splat looks like:
[  175.852292][    C3] protocol 88fb is buggy, dev veth0

Fixes: f421436a59 ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:24 +01:00
arch um: Implement copy_thread_tls 2020-01-14 20:08:35 +01:00
block fs: move guard_bio_eod() after bio_set_op_attrs 2020-01-17 19:48:21 +01:00
certs
crypto
Documentation dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example 2020-01-09 10:20:05 +01:00
drivers drm/tegra: Fix ordering of cleanup code 2020-01-17 19:48:23 +01:00
fs fs: move guard_bio_eod() after bio_set_op_attrs 2020-01-17 19:48:21 +01:00
include can: can_dropped_invalid_skb(): ensure an initialized headroom in outgoing CAN sk_buffs 2020-01-14 20:08:28 +01:00
init
ipc
kernel bpf: cgroup: prevent out-of-order release of cgroup bpf 2020-01-17 19:48:21 +01:00
lib sbitmap: only queue kyber's wait callback if not already active 2020-01-12 12:21:44 +01:00
LICENSES
mm mm/hugetlb: defer freeing of huge pages if in non-task context 2020-01-09 10:20:07 +01:00
net hsr: reset network header when supervision frame is created 2020-01-17 19:48:24 +01:00
samples samples: bpf: fix syscall_tp due to unused syscall 2020-01-12 12:21:26 +01:00
scripts scripts: package: mkdebian: add missing rsync dependency 2020-01-12 12:21:35 +01:00
security
sound ASoC: SOF: imx8: Fix dsp_box offset 2020-01-17 19:48:19 +01:00
tools selftests: loopback.sh: skip this test if the driver does not support 2020-01-17 19:48:20 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.12 2020-01-14 20:08:40 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.