diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-08-11 12:57:15 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-18 08:57:01 +0200 |
| commit | 4d3c5c319b197357eb6ba8346a7c82fa287bebc3 (patch) | |
| tree | 5a091d74826ecc50ce3122522c5377b043e6ad19 /include/linux | |
| parent | 721ff564cc6ab4e78d2b662060ea9c32776ed978 (diff) | |
net: igmp: increase size of mr_ifc_count
[ Upstream commit b69dd5b3780a7298bd893816a09da751bc0636f7 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/inetdevice.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index 3515ca64e638..b68fca08be27 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -41,7 +41,7 @@ struct in_device { unsigned long mr_qri; /* Query Response Interval */ unsigned char mr_qrv; /* Query Robustness Variable */ unsigned char mr_gq_running; - unsigned char mr_ifc_count; + u32 mr_ifc_count; struct timer_list mr_gq_timer; /* general query timer */ struct timer_list mr_ifc_timer; /* interface change timer */ |