ath9k: fix an rx descriptor processing race condition

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@37746 3c298f89-4303-0410-b956-a3cf2f4a3e73
ath9k: fix an rx descriptor processing race condition

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r37746

git-svn-id: svn://svn.openwrt.org/openwrt@37747 3c298f89-4303-0410-b956-a3cf2f4a3e73
ar71xx: allow mtu > 1500 based on the configured tx/rx mtu register value

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@37748 3c298f89-4303-0410-b956-a3cf2f4a3e73