[LTP] futex_wait06: Add EFAULT error coverage test

[linuxtestproject.agent@gmail.com]

Hi Michael,

On Mon, 25 May 2026 17:44:14 +0300, Michael Menasherov wrote:
> [PATCH 1/4] futex_wait06: Add EFAULT error coverage test

--- [PATCH 1/4] ---

> +static struct futex_test_variants variants[] = {
> +#if (__NR_futex != __LTP__NR_INVALID_SYSCALL)
> +	{ .fntype = FUTEX_FN_FUTEX, .tstype = TST_KERN_OLD_TIMESPEC, .desc = "syscall with old kernel spec"},
> +#endif
> +
> +#if (__NR_futex_time64 != __LTP__NR_INVALID_SYSCALL)
> +	{ .fntype = FUTEX_FN_FUTEX64, .tstype = TST_KERN_TIMESPEC, .desc = "syscall time64 with kernel spec"},
> +#endif
> +};

`.tstype` is set here but `run()` calls `futex_syscall()` directly without
ever reading `tv->tstype`. Since the test passes the raw bad pointer as
timeout (bypassing `tst_ts_*`), drop the `.tstype` assignments from
both variants — they are dead and misleading.

[...]

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

> +futex_cmp_requeue03 futex_cmp_requeue03

This entry is placed after `futex_wake05` rather than near the other
`futex_cmp_requeue` entries. It should follow `futex_cmp_requeue02`
at line 1865.

[...]

---
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