[LTP] test macros: Fix TST_EXP_FD_OR_FAIL()

[linuxtestproject.agent@gmail.com]

Hi Petr,

On Tue, 11 Aug 2026, Petr Vorel wrote:
> test macros: Fix TST_EXP_FD_OR_FAIL()

--- [PATCH 3/4] ---

> +	TST_EXP_PASS_OR_FAIL(finit_module(fd, "status=valid", 0), err);
>  	if (!TST_PASS)
>  		return;

Could this return when err is nonzero as well?  An expected EKEYREJECTED
sets TST_PASS, so the signature-enforcement path continues to
tst_module_unload() even though the module was never loaded.  The rmmod
retries then end the test with TBROK.  The same issue is present in
init_module01.c.

> +	TST_EXP_FD_OR_FAIL(fd = open(FILE_TRUNCATE, O_WRONLY | O_TRUNC, PERM_MODE), exp_err);
> +	if (fd != -1) {
> +		TST_EXP_PASS_OR_FAIL(ftruncate(fd, 10), exp_err);
> +		SAFE_CLOSE(fd);
>  	}
> +
> +	TST_EXP_FD_OR_FAIL(fd = open(FILE_TRUNCATE, O_WRONLY | O_TRUNC, PERM_MODE), exp_err);

Could the first open keep O_WRONLY without O_TRUNC?  In the
LANDLOCK_ACCESS_FS_WRITE_FILE-only variant, O_TRUNC is denied, fd remains
-1, and the ftruncate() check is skipped.  The next identical open then
tests O_TRUNC twice.

--- [PATCH 4/4] ---

> diff --git a/lib/newlib_tests/test_macros04.c b/lib/newlib_tests/test_macros04.c
> deleted file mode 100644

Could the test_macros04 entry be removed from lib/newlib_tests/.gitignore
along with the deleted test?

Verdict - Needs revision

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