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(parent: 0271824) | patch
net: igmp: increase size of mr_ifc_count
authorEric Dumazet <edumazet@google.com>
Wed, 11 Aug 2021 19:57:15 +0000 (12:57 -0700)
committerJakub Kicinski <kuba@kernel.org>
Wed, 11 Aug 2021 22:54:10 +0000 (15:54 -0700)
commitb69dd5b3780a7298bd893816a09da751bc0636f7
tree0c4a94d50ac5dc9f09a84b630c88b60b7e77279atree | snapshot
parent0271824d9ebe945a2ecefdb87e1ce0a520be704dcommit | diff
net: igmp: increase size of mr_ifc_count

Some arches support cmpxchg() on 4-byte and 8-byte only.
Increase mr_ifc_count width to 32bit to fix this problem.

Fixes: 4a2b285e7e10 ("net: igmp: fix data-race in igmp_ifc_timer_expire()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210811195715.3684218-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
include/linux/inetdevice.h diff | blob | history
net/ipv4/igmp.c diff | blob | history
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