From: Florian Fainelli
Date: Fri, 1 Feb 2019 20:20:52 -0800
> After 4effd28c1245 ("bridge: join all-snoopers multicast address"), I
> started seeing the following sleep in atomic warnings:
...
> while toggling the bridge's multicast_snooping attribute dynamically.
>
> Pass a gfp_t down to igmp
After 4effd28c1245 ("bridge: join all-snoopers multicast address"), I
started seeing the following sleep in atomic warnings:
[ 26.763893] BUG: sleeping function called from invalid context at
mm/slab.h:421
[ 26.771425] in_atomic(): 1, irqs_disabled(): 0, pid: 1658, name: sh
[ 26.777855] INF
