Re: [PATCH] selftests/landlock:Fix fs_test build issues with old libc

From: Mickaël Salaün
Date: Wed Jan 24 2024 - 08:13:46 EST


Thanks, it's merged with some fixes:
https://git.kernel.org/mic/c/82852a3cc2152eb7c7b7007b6430faa979b08fad

On Wed, Jan 24, 2024 at 10:29:08AM +0800, Hu Yadi wrote:
> From: "Hu.Yadi" <hu.yadi@xxxxxxx>

You might want to fix the extra dot in your name.

>
> Fixes: 04f9070e99a4 ("selftests/landlock: Add tests for pseudo filesystems")
>
> one issues comes up while building selftest/landlock on my side
> (gcc 7.3/glibc-2.28/kernel-4.19)
>
> gcc -Wall -O2 -isystem fs_test.c -lcap -o selftests/landlock/fs_test
> fs_test.c:4575:9: error: initializer element is not constant
> .mnt = mnt_tmp,
> ^~~~~~~
>
> Signed-off-by: Hu.Yadi <hu.yadi@xxxxxxx>
> Suggested-by: Jiao <jiaoxupo@xxxxxxx>
> Reviewed-by: Berlin <berlin@xxxxxxx>
> ---
> tools/testing/selftests/landlock/fs_test.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
> index 18e1f86a6234..1f2584b4dfce 100644
> --- a/tools/testing/selftests/landlock/fs_test.c
> +++ b/tools/testing/selftests/landlock/fs_test.c
> @@ -40,6 +40,7 @@ int renameat2(int olddirfd, const char *oldpath, int newdirfd,
>
> #define TMP_DIR "tmp"
> #define BINARY_PATH "./true"
> +#define MNT_TMP_DATA "size=4m,mode=700"

The idea was to reuse MNT_TMP_DATA for mnt_tmp too. I fixed that in the
applied patch, see my next branch.

>
> /* Paths (sibling number and depth) */
> static const char dir_s1d1[] = TMP_DIR "/s1d1";
> @@ -4572,7 +4573,10 @@ FIXTURE_VARIANT(layout3_fs)
> /* clang-format off */
> FIXTURE_VARIANT_ADD(layout3_fs, tmpfs) {
> /* clang-format on */
> - .mnt = mnt_tmp,
> + .mnt = {
> + .type = "tmpfs",
> + .data = MNT_TMP_DATA,
> + },
> .file_path = file1_s1d1,
> };
>
> --
> 2.23.0
>
>