From: Colin Ian King <colin.king@xxxxxxxxxxxxx> Subject: mm/shmem.c: make array 'values' static const, makes object smaller Don't populate the array 'values' on the stack but instead make it static const. Makes the object code smaller by 111 bytes. Before: text data bss dec hex filename 108612 11169 512 120293 1d5e5 mm/shmem.o After: text data bss dec hex filename 108437 11233 512 120182 1d576 mm/shmem.o (gcc version 9.2.1, amd64) Link: http://lkml.kernel.org/r/20190906143012.28698-1-colin.king@xxxxxxxxxxxxx Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/shmem.c~mm-shmemc-make-array-values-static-const-makes-object-smaller +++ a/mm/shmem.c @@ -3932,7 +3932,7 @@ out2: static ssize_t shmem_enabled_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - int values[] = { + static const int values[] = { SHMEM_HUGE_ALWAYS, SHMEM_HUGE_WITHIN_SIZE, SHMEM_HUGE_ADVISE, _
