diff options
| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2015-06-16 17:10:25 +0200 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-09-30 13:20:42 +0100 |
| commit | 0c1d9a3bf135f81dc3e462c063a2c89f2215bf6d (patch) | |
| tree | 545e932055ae47edd97a690fa625697b2145d8ec /include/linux/etherdevice.h | |
| parent | bfad298810fc81deff4e65e8a657e3c76062d7d9 (diff) | |
batman-adv: Make MCAST capability changes atomic
commit 9c936e3f4c4fad07abb6c082a89508b8f724c88f upstream.
Bitwise OR/AND assignments in C aren't guaranteed to be atomic. One
OGM handler might undo the set/clear of a specific bit from another
handler run in between.
Fix this by using the atomic set_bit()/clear_bit()/test_bit() functions.
Fixes: 60432d756cf0 ("batman-adv: Announce new capability via multicast TVLV")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include/linux/etherdevice.h')
0 files changed, 0 insertions, 0 deletions