From: Arnd Bergmann <a...@arndb.de>
Date: Fri, 26 Aug 2016 17:25:45 +0200
> The addition of VLAN support caused a possible use of uninitialized
> data if we encounter a zero TCA_FLOWER_KEY_ETH_TYPE key, as pointed
> out by "gcc -Wmaybe-uninitialized":
>
> net/sched/cls_flower.c: In function 'fl_change':
> net/sched/cls_flower.c:366:22: error: 'ethertype' may be used uninitialized
> in this function [-Werror=maybe-uninitialized]
>
> This changes the code to only set the ethertype field if it
> was nonzero, as before the patch.
>
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> Fixes: 9399ae9a6cb2 ("net_sched: flower: Add vlan support")
Applied.
