On Tue, Dec 14, 2021 at 04:54:40PM +0800, Baoquan He wrote: > If you didn't contribute change, Signed-off-by should be taken off. The second SOB is correct here. I'll let you figure it out what it means. Hint: Documentation/process/submitting-patches.rst -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette