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| author | Sven Eckelmann <sven@narfation.org> | 2023-07-19 09:29:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-30 16:31:54 +0200 |
| commit | 3035b3f54fcab353bc0754e80785040db16b86fb (patch) | |
| tree | f1f9d2ae220aa905a8c7b11334f97746b7fb56d5 | |
| parent | da5abe4e40c12682cc602b8e5c0f9b22368d4a48 (diff) | |
| download | msm-3035b3f54fcab353bc0754e80785040db16b86fb.tar.gz | |
batman-adv: Trigger events for auto adjusted MTU
commit c6a953cce8d0438391e6da48c8d0793d3fbfcfa6 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/batman-adv/hard-interface.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index 6d68cdb9dd77..37fc452f7b9a 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -643,7 +643,7 @@ 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. |