From: Alexey Dobriyan <adobriyan@xxxxxxxxx> Subject: include/linux/kernel.h: add typeof_member() macro Add typeof_member() macro so that types can be extracted without introducing dummy variables. Link: http://lkml.kernel.org/r/20190529190720.GA5703@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/kernel.h | 2 ++ 1 file changed, 2 insertions(+) --- a/include/linux/kernel.h~add-typeof_member-macro +++ a/include/linux/kernel.h @@ -88,6 +88,8 @@ */ #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) +#define typeof_member(T, m) typeof(((T*)0)->m) + #define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP #define DIV_ROUND_DOWN_ULL(ll, d) \ _
