>> There are different preferences involved. >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.8-rc2#n109 > > Ah, I mean you use 13 chars, but 12 chars is better. Also the doc > doens't seem to enforce 12 chars, but checkpatch warns on that. Would the specification “at least” become supported at further places for such hash lengths? Regards, Markus