On Fri, 2020-12-25 at 06:56 -0800, Tom Rix wrote: > On 12/24/20 2:39 PM, Joe Perches wrote: [] > > Kernel code doesn't use a signed char or short with %hx or %hu very often > > but in case you didn't already know, any signed char/short emitted with > > anything like %hx or %hu needs to be left alone as sign extension occurs so: > > Yes, this would also effect checkpatch.
Of course but checkpatch is stupid and doesn't know types so it just assumes that the type argument is not signed. In general, that's a reasonable but imperfect assumption. coccinelle could probably do this properly as it's a much better parser. clang-tidy should be able to as well.
