Kurt Kanzenbach b82816d778 net: hsr: Reset MAC header for Tx path ... commit 9d6803921a16f4d768dc41a75375629828f4d91e upstream. Reset MAC header in HSR Tx path. This is needed, because direct packet transmission, e.g. by specifying PACKET_QDISC_BYPASS does not reset the MAC header. This has been observed using the following setup: |$ ip link add name hsr0 type hsr slave1 lan0 slave2 lan1 supervision 45 version 1 |$ ifconfig hsr0 up |$ ./test hsr0 The test binary is using mmap'ed sockets and is specifying the PACKET_QDISC_BYPASS socket option. This patch resolves the following warning on a non-patched kernel: |[ 112.725394] ------------[ cut here ]------------ |[ 112.731418] WARNING: CPU: 1 PID: 257 at net/hsr/hsr_forward.c:560 hsr_forward_skb+0x484/0x568 |[ 112.739962] net/hsr/hsr_forward.c:560: Malformed frame (port_src hsr0) The warning can be safely removed, because the other call sites of hsr_forward_skb() make sure that the skb is prepared correctly. Fixes: d346a3fae3 ("packet: introduce PACKET_QDISC_BYPASS socket option") Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-04-14 08:42:02 +02:00
..
hsr_debugfs.c
hsr_device.c	net: hsr: Reset MAC header for Tx path	2021-04-14 08:42:02 +02:00
hsr_device.h
hsr_forward.c	net: hsr: Reset MAC header for Tx path	2021-04-14 08:42:02 +02:00
hsr_forward.h
hsr_framereg.c
hsr_framereg.h
hsr_main.c
hsr_main.h
hsr_netlink.c
hsr_netlink.h
hsr_slave.c
hsr_slave.h
Kconfig
Makefile