On Mon, 11 Jul 2022 14:29:32 -0700 Justin Stitt wrote: > When building with Clang we encounter this warning: > | drivers/net/wireless/mediatek/mt7601u/debugfs.c:92:6: error: format > | specifies type 'unsigned char' but the argument has type 'int' > | [-Werror,-Wformat] dev->ee->reg.start + dev->ee->reg.num - 1); > > The format specifier used is `%hhu` which describes a u8. Both > `dev->ee->reg.start` and `.num` are u8 as well. However, the expression > as a whole is promoted to an int as you cannot get smaller-than-int from > addition. Therefore, to fix the warning, use the promoted-to-type's > format specifier -- in this case `%d`. Acked-by: Jakub Kicinski <kubakici@xxxxx>