Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski <kuba@xxxxxxxxxx>: On Mon, 21 Aug 2023 21:48:48 +0200 you wrote: > The automatic recalculation of the maximum allowed MTU is usually triggered > by code sections which are already rtnl lock protected by callers outside > of batman-adv. But when the fragmentation setting is changed via > batman-adv's own batadv genl family, then the rtnl lock is not yet taken. > > But dev_set_mtu requires that the caller holds the rtnl lock because it > uses netdevice notifiers. And this code will then fail the check for this > lock: > > [...] Here is the summary with links: - [net] batman-adv: Hold rtnl lock during MTU update via netlink https://git.kernel.org/netdev/net/c/987aae75fc10 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html