> Currently, the driver didn't return when receive a unknown > mailbox message, and continue checking whether need to > generate a response. It's unnecessary and may be incorrect. Please improve this change description. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.9-rc7#n94 Regards, Markus