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authorSven Eckelmann <sven@narfation.org>2023-07-19 09:29:29 +0200
committerSimon Wunderlich <sw@simonwunderlich.de>2023-07-20 08:56:06 +0200
commitc6a953cce8d0438391e6da48c8d0793d3fbfcfa6 (patch)
tree02458d0d45c573f42855cbfadbb15238c29c8ffc /net/batman-adv
parentLinux 6.5-rc1 (diff)
downloadlinux-c6a953cce8d0438391e6da48c8d0793d3fbfcfa6.tar.xz
linux-c6a953cce8d0438391e6da48c8d0793d3fbfcfa6.zip
batman-adv: Trigger events for auto adjusted MTU
If an interface changes the MTU, it is expected that an NETDEV_PRECHANGEMTU and NETDEV_CHANGEMTU notification events is triggered. This worked fine for .ndo_change_mtu based changes because core networking code took care of it. But for auto-adjustments after hard-interfaces changes, these events were simply missing. Due to this problem, non-batman-adv components weren't aware of MTU changes and thus couldn't perform their own tasks correctly. Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol") Cc: stable@vger.kernel.org Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/hard-interface.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 41c1ad33d009..ae5762af0146 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -630,7 +630,7 @@ out:
*/
void batadv_update_min_mtu(struct net_device *soft_iface)
{
- soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
+ dev_set_mtu(soft_iface, batadv_hardif_min_mtu(soft_iface));
/* Check if the local translate table should be cleaned up to match a
* new (and smaller) MTU.