diff options
| author | Sven Eckelmann <sven@narfation.org> | 2022-02-28 00:01:24 +0100 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2022-03-02 09:01:25 +0100 |
| commit | 690bb6fb64f5dc7437317153902573ecad67593d (patch) | |
| tree | 5148040738379a87c3c8a713cda24da5cc7a05c3 /Documentation/vm | |
| parent | e783362eb54cd99b2cac8b3a9aeac942e6f6ac07 (diff) | |
| download | linux-stable-690bb6fb64f5dc7437317153902573ecad67593d.tar.gz linux-stable-690bb6fb64f5dc7437317153902573ecad67593d.tar.bz2 linux-stable-690bb6fb64f5dc7437317153902573ecad67593d.zip | |
batman-adv: Request iflink once in batadv-on-batadv check
There is no need to call dev_get_iflink multiple times for the same
net_device in batadv_is_on_batman_iface. And since some of the
.ndo_get_iflink callbacks are dynamic (for example via RCUs like in
vxcan_get_iflink), it could easily happen that the returned values are not
stable. The pre-checks before __dev_get_by_index are then of course bogus.
Fixes: b7eddd0b3950 ("batman-adv: prevent using any virtual device created on batman-adv as hard-interface")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'Documentation/vm')
0 files changed, 0 insertions, 0 deletions