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Matt JohnstonandGreg Kroah-Hartman
7b606804bb
[ Upstream commitb389a902dd] The unregister check could be incorrectly triggered if a netdev changes its type after register. That is possible for a tun device using TUNSETLINK ioctl, resulting in mctp unregister failing and the netdev unregister waiting forever. This was encountered by https://github.com/openthread/openthread/issues/8523 Neither check at register or unregister is required. They were added in an attempt to track down mctp_ptr being set unexpectedly, which should not happen in normal operation. Fixes:7b1871af75("mctp: Warn if pointer is set for a wrong dev type") Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Link: https://lore.kernel.org/r/20221215054933.2403401-1-matt@codeconstruct.com.au Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>