From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mm/slub.c: include swab.h Fixes build with CONFIG_SLAB_FREELIST_HARDENED=y. Hopefully. But it's the right thing to do anwyay. Fixes: 1ad53d9fa3f61 ("slub: improve bit diffusion for freelist ptr obfuscation") Link: https://bugzilla.kernel.org/show_bug.cgi?id=213417 Reported-by: <vannguye@xxxxxxxxx> Acked-by: Kees Cook <keescook@xxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/slub.c~mm-slubc-include-swabh +++ a/mm/slub.c @@ -15,6 +15,7 @@ #include <linux/module.h> #include <linux/bit_spinlock.h> #include <linux/interrupt.h> +#include <linux/swab.h> #include <linux/bitops.h> #include <linux/slab.h> #include "slab.h" _