From: Cyril Hrubis <chrubis@suse.cz>
To: Andrea Cervesato <andrea.cervesato@suse.com>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH v11 1/2] lib: Extend tst_assert_ulong() with enum flags
Date: Wed, 23 Sep 2026 13:17:35 +0200 [thread overview]
Message-ID: <arO1T65e7xn5j4_U@yuki.lan> (raw)
In-Reply-To: <6a9a867b.de81f790.219d91.7092@mx.google.com>
Hi!
> > +
> > + if (flags & TST_ASSERT_SATURATED_INT) {
> > + if (sys_val_64 > (unsigned long long)INT_MAX)
> > + expected_val = (unsigned long)INT_MAX;
> > + else
> > + expected_val = (unsigned long)sys_val_64;
> > + } else if (flags & TST_ASSERT_TRUNC_32BIT) {
>
> In 32bit compat mode `unsigned long` becomes 32bit, so we can simply do:
>
> void tst_assert_ulong(const char *file, const int lineno, const char *path, unsigned long val)
> {
> unsigned long long sys_val;
>
> safe_file_scanf(file, lineno, NULL, path, "%llu", &sys_val);
>
> if (val == (unsigned long)sys_val) {
> tst_res_(file, lineno, TPASS, "%s = %lu", path, val);
> return;
> }
>
> tst_res_(file, lineno, TFAIL, "%s != %lu got %lu",
> path, val, (unsigned long)sys_val);
> }
>
> And then, inside the test:
>
> if (tst_is_compat_mode() && info.shmmax == INT_MAX)
> tst_res(TPASS, "shmmax clamped to INT_MAX in compat mode");
As I commented on the patch from pvorel, I do not like the blind TPASS
here. Either we put the saturated logic into the test library, or we
need to open-code it here.
> else
> TST_ASSERT_ULONG(PATH_KERN_SHMMAX, info.shmmax);
>
> TST_ASSERT_ULONG(PATH_KERN_SHMMNI, info.shmmni);
> TST_ASSERT_ULONG(PATH_KERN_SHMALL, info.shmall);
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2026-09-23 11:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-03 9:52 [LTP] [PATCH v11 0/2] shmctl03: Fix 32-bit compat mode failure Wei Gao via ltp
2026-09-03 9:52 ` [LTP] [PATCH v11 1/2] lib: Extend tst_assert_ulong() with enum flags Wei Gao via ltp
2026-09-03 12:00 ` [LTP] " linuxtestproject.agent
2026-09-04 8:51 ` [LTP] [PATCH v11 1/2] " Andrea Cervesato via ltp
2026-09-07 7:29 ` Wei Gao via ltp
2026-09-16 11:33 ` Petr Vorel
2026-09-17 7:42 ` Li Wang
2026-09-23 11:17 ` Cyril Hrubis [this message]
2026-09-03 9:52 ` [LTP] [PATCH v11 2/2] shmctl03: Fix 32-bit compat mode failure Wei Gao via ltp
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