Re: [PATCH] z3fold: use %z modifier for format string

From: Vitaly Wool
Date: Fri Nov 25 2016 - 02:38:11 EST


Hi Arnd,

On Thu, Nov 24, 2016 at 5:31 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> Printing a size_t requires the %zd format rather than %d:
>
> mm/z3fold.c: In function âinit_z3foldâ:
> include/linux/kern_levels.h:4:18: error: format â%dâ expects argument of type âintâ, but argument 2 has type âlong unsigned intâ [-Werror=format=]
>
> Fixes: 50a50d2676c4 ("z3fold: don't fail kernel build if z3fold_header is too big")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Acked-by: Vitaly Wool <vitalywool@xxxxxxxxx>

And thanks :)

~vitaly

> ---
> mm/z3fold.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/z3fold.c b/mm/z3fold.c
> index e282ba073e77..66ac7a7dc934 100644
> --- a/mm/z3fold.c
> +++ b/mm/z3fold.c
> @@ -884,7 +884,7 @@ static int __init init_z3fold(void)
> {
> /* Fail the initialization if z3fold header won't fit in one chunk */
> if (sizeof(struct z3fold_header) > ZHDR_SIZE_ALIGNED) {
> - pr_err("z3fold: z3fold_header size (%d) is bigger than "
> + pr_err("z3fold: z3fold_header size (%zd) is bigger than "
> "the chunk size (%d), can't proceed\n",
> sizeof(struct z3fold_header) , ZHDR_SIZE_ALIGNED);
> return -E2BIG;
> --
> 2.9.0
>