android_kernel_oneplus_msm8998/net/dsa
Rundong Ge b1746f9f05 net: dsa: slave: Don't propagate flag changes on down slave interfaces
[ Upstream commit 17ab4f61b8cd6f9c38e9d0b935d86d73b5d0d2b5 ]

The unbalance of master's promiscuity or allmulti will happen after ifdown
and ifup a slave interface which is in a bridge.

When we ifdown a slave interface , both the 'dsa_slave_close' and
'dsa_slave_change_rx_flags' will clear the master's flags. The flags
of master will be decrease twice.
In the other hand, if we ifup the slave interface again, since the
slave's flags were cleared the 'dsa_slave_open' won't set the master's
flag, only 'dsa_slave_change_rx_flags' that triggered by 'br_add_if'
will set the master's flags. The flags of master is increase once.

Only propagating flag changes when a slave interface is up makes
sure this does not happen. The 'vlan_dev_change_rx_flags' had the
same problem and was fixed, and changes here follows that fix.

Fixes: 91da11f870 ("net: Distributed Switch Architecture protocol support")
Signed-off-by: Rundong Ge <rdong.ge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20 10:13:15 +01:00
..
dsa.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
dsa_priv.h net: dsa: Add netconsole support 2015-07-31 15:45:37 -07:00
Kconfig net: dsa: select NET_SWITCHDEV 2017-11-15 17:13:11 +01:00
Makefile net: dsa: add Broadcom tag RX/TX handler 2014-08-27 22:59:40 -07:00
slave.c net: dsa: slave: Don't propagate flag changes on down slave interfaces 2019-02-20 10:13:15 +01:00
tag_brcm.c net: dsa: Refactor transmit path to eliminate duplication 2015-07-31 15:45:37 -07:00
tag_dsa.c net: dsa: Refactor transmit path to eliminate duplication 2015-07-31 15:45:37 -07:00
tag_edsa.c net: dsa: Refactor transmit path to eliminate duplication 2015-07-31 15:45:37 -07:00
tag_trailer.c net: dsa: Fix Marvell Egress Trailer check 2015-09-22 17:37:03 -07:00