[LTP] [PATCH] tst_test: Add TCONF when no required filesystems are available

[Petr Vorel]

Hi Li,

> Currently, when no required filesystems (filesystem[i].type) are available,
> the test silently does nothing, leading to a misleading test summary.

> This patch adds a check to issue TCONF when no valid filesystems are found,
> ensuring clearer test results.

Reviewed-by: Petr Vorel <pvorel@suse.cz>
Tested-by: Petr Vorel <pvorel@suse.cz>

Thanks!

Kind regards,
Petr

>   # ./ioctl_ficlone03
>   tst_buffers.c:57: TINFO: Test is using guarded buffers
>   tst_tmpdir.c:317: TINFO: Using /tmp/LTP_iocSKLS9l as tmpdir (tmpfs filesystem)
>   tst_device.c:99: TINFO: Found free device 0 '/dev/loop0'
>   tst_test.c:1900: TINFO: LTP version: 20250130-166-g17960d952
>   tst_test.c:1904: TINFO: Tested kernel: 4.5.0-00002-g22bd332f11d4 #162 SMP Thu Mar 20 18:00:10 CET 2025 x86_64
>   tst_kconfig.c:88: TINFO: Parsing kernel config '/.config'
>   tst_test.c:1724: TINFO: Overall timeout per run is 0h 00m 31s
>   tst_supported_fs_types.c:97: TINFO: Kernel supports ext2
>   tst_supported_fs_types.c:62: TINFO: mkfs.ext2 does exist
>   tst_supported_fs_types.c:97: TINFO: Kernel supports ext3
>   tst_supported_fs_types.c:62: TINFO: mkfs.ext3 does exist
>   tst_supported_fs_types.c:97: TINFO: Kernel supports ext4
>   tst_supported_fs_types.c:62: TINFO: mkfs.ext4 does exist
>   tst_supported_fs_types.c:105: TINFO: Skipping bcachefs because of FUSE blacklist
>   tst_supported_fs_types.c:97: TINFO: Kernel supports vfat
>   tst_supported_fs_types.c:62: TINFO: mkfs.vfat does exist
>   tst_supported_fs_types.c:97: TINFO: Kernel supports tmpfs
>   tst_supported_fs_types.c:49: TINFO: mkfs is not needed for tmpfs

>   Summary:
>   passed   0
>   failed   0
>   broken   0
>   skipped  0
>   warnings 0

> Reported-by: Petr Vorel <pvorel@suse.cz>
> Signed-off-by: Li Wang <liwang@redhat.com>
> ---
>  lib/tst_test.c | 5 +++++
>  1 file changed, 5 insertions(+)

> diff --git a/lib/tst_test.c b/lib/tst_test.c
> index 3823ea109..9a23cd4a0 100644
> --- a/lib/tst_test.c
> +++ b/lib/tst_test.c
> @@ -1855,6 +1855,7 @@ static int run_tcases_per_fs(void)
>  {
>  	int ret = 0;
>  	unsigned int i;
> +	bool found_valid_fs = false;
nit: I would chose slightly shorter variable name (e.g. tested), but that's not
important.

Thanks for sending a patch!

Kind regards,
Petr

>  	const char *const *filesystems = tst_get_supported_fs_types(tst_test->skip_filesystems);

>  	if (!filesystems[0])
> @@ -1866,6 +1867,7 @@ static int run_tcases_per_fs(void)
>  		if (!fs)
>  			continue;

> +		found_valid_fs = true;
>  		ret = run_tcase_on_fs(fs, filesystems[i]);

>  		if (ret == TCONF)
> @@ -1877,6 +1879,9 @@ static int run_tcases_per_fs(void)
>  		do_exit(ret);
>  	}

> +	if (!found_valid_fs)
> +		tst_brk(TCONF, "No required filesystems are available");
> +
>  	return ret;
>  }