diff options
Diffstat (limited to 'batman-adv/patches/0006-batman-adv-Trigger-events-for-auto-adjusted-MTU.patch')
| -rw-r--r-- | batman-adv/patches/0006-batman-adv-Trigger-events-for-auto-adjusted-MTU.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/batman-adv/patches/0006-batman-adv-Trigger-events-for-auto-adjusted-MTU.patch b/batman-adv/patches/0006-batman-adv-Trigger-events-for-auto-adjusted-MTU.patch new file mode 100644 index 0000000..5064500 --- /dev/null +++ b/batman-adv/patches/0006-batman-adv-Trigger-events-for-auto-adjusted-MTU.patch @@ -0,0 +1,28 @@ +From: Sven Eckelmann <sven@narfation.org> +Date: Wed, 19 Jul 2023 10:15:05 +0200 +Subject: 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: 8009e9f7ac4f ("set bat0 MTU according to the MTUs of the hard interfaces") +Signed-off-by: Sven Eckelmann <sven@narfation.org> +Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/27c4d7c1c7fa39d71ea6ccf1c23bcb4773243800 + +--- a/net/batman-adv/hard-interface.c ++++ b/net/batman-adv/hard-interface.c +@@ -629,7 +629,7 @@ 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. |