Re: [PATCH] selftests: memfd_test.c: fix compilation warning.

[Shuah Khan]

On 11/05/2017 03:56 AM, Lei Yang wrote:
> Replace '%d' by '%zu' to fix the following compilation warning.
> 
> memfd_test.c:517:3: warning: format â%dâ expects argument of
> type âintâ,but argument 2 has type âsize_tâ [-Wformat=]
>    printf("malloc(%d) failed: %m\n", mfd_def_size * 8);
>    ^
> memfd_test.c: In function âmfd_fail_grow_writeâ:
> memfd_test.c:537:3: warning: format â%dâ expects argument
> of type âintâ,but argument 2 has type âsize_tâ [-Wformat=]
>    printf("malloc(%d) failed: %m\n", mfd_def_size * 8);
> 
> Signed-off-by: Lei Yang <Lei.Yang@xxxxxxxxxxxxx>
> ---
>  tools/testing/selftests/memfd/memfd_test.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
> index f94c6d1..95df9e6 100644
> --- a/tools/testing/selftests/memfd/memfd_test.c
> +++ b/tools/testing/selftests/memfd/memfd_test.c
> @@ -514,7 +514,7 @@ static void mfd_assert_grow_write(int fd)
>  
>  	buf = malloc(mfd_def_size * 8);
>  	if (!buf) {
> -		printf("malloc(%d) failed: %m\n", mfd_def_size * 8);
> +		printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
>  		abort();
>  	}
>  
> @@ -534,7 +534,7 @@ static void mfd_fail_grow_write(int fd)
>  
>  	buf = malloc(mfd_def_size * 8);
>  	if (!buf) {
> -		printf("malloc(%d) failed: %m\n", mfd_def_size * 8);
> +		printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
>  		abort();
>  	}
>  
> 

Relates to gcc version perhaps. What's your gcc version?

thanks,
-- Shuah