On Mon, Jul 20, 2026 at 10:54:43AM +0800, longlong yan wrote:
> Replace the direct comparison with (void *)-1 with the standard
> MAP_FAILED macro when checking mmap()
> 
> Signed-off-by: longlong yan <[email protected]>
> ---
>  tools/testing/selftests/sgx/load.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/sgx/load.c 
> b/tools/testing/selftests/sgx/load.c
> index c9f658e44de6..6204ab0bae19 100644
> --- a/tools/testing/selftests/sgx/load.c
> +++ b/tools/testing/selftests/sgx/load.c
> @@ -202,7 +202,7 @@ bool encl_load(const char *path, struct encl *encl, 
> unsigned long heap_size)
>       }
>  
>       ptr = mmap(NULL, PAGE_SIZE, PROT_READ, MAP_SHARED, fd, 0);
> -     if (ptr == (void *)-1) {
> +     if (ptr == MAP_FAILED) {
>               perror("mmap for read");
>               goto err;
>       }
> @@ -215,7 +215,7 @@ bool encl_load(const char *path, struct encl *encl, 
> unsigned long heap_size)
>  " If so, remount it executable: mount -o remount,exec /dev\n\n"
>  
>       ptr = mmap(NULL, PAGE_SIZE, PROT_EXEC, MAP_SHARED, fd, 0);
> -     if (ptr == (void *)-1) {
> +     if (ptr == MAP_FAILED) {
>               fprintf(stderr, ERR_MSG);
>               goto err;
>       }
> -- 
> 2.43.0
> 

Yeah, why not:

Reviewed-by: Jarkko Sakkinen <[email protected]>

It does document test cases better.

BR, Jarkko

Reply via email to