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Message-ID: <20240304233621.646054-1-kuba@kernel.org>
Date: Mon,  4 Mar 2024 15:36:20 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	Jakub Kicinski <kuba@...nel.org>,
	Mark Brown <broonie@...nel.org>,
	ivan.orlov0322@...il.com,
	perex@...ex.cz,
	tiwai@...e.com,
	shuah@...nel.org,
	jglisse@...hat.com,
	akpm@...ux-foundation.org,
	keescook@...omium.org,
	linux-sound@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH net-next] selftests: avoid using SKIP(exit()) in harness fixure setup

selftest harness uses various exit codes to signal test
results. Avoid calling exit() directly, otherwise tests
may get broken by harness refactoring (like the commit
under Fixes). SKIP() will instruct the harness that the
test shouldn't run, it used to not be the case, but that
has been fixed. So just return, no need to exit.

Note that for hmm-tests this actually changes the result
from pass to skip. Which seems fair, the test is skipped,
after all.

Reported-by: Mark Brown <broonie@...nel.org>
Link: https://lore.kernel.org/all/05f7bf89-04a5-4b65-bf59-c19456aeb1f0@sirena.org.uk
Fixes: a724707976b0 ("selftests: kselftest_harness: use KSFT_* exit codes")
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
This needs to go to net-next because that's where the breaking
patch was (mis?)-applied.

CC: ivan.orlov0322@...il.com
CC: perex@...ex.cz
CC: tiwai@...e.com
CC: broonie@...nel.org
CC: shuah@...nel.org
CC: jglisse@...hat.com
CC: akpm@...ux-foundation.org
CC: keescook@...omium.org
CC: linux-sound@...r.kernel.org
CC: linux-kselftest@...r.kernel.org
CC: linux-mm@...ck.org
---
 tools/testing/selftests/alsa/test-pcmtest-driver.c | 4 ++--
 tools/testing/selftests/mm/hmm-tests.c             | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/alsa/test-pcmtest-driver.c b/tools/testing/selftests/alsa/test-pcmtest-driver.c
index a52ecd43dbe3..ca81afa4ee90 100644
--- a/tools/testing/selftests/alsa/test-pcmtest-driver.c
+++ b/tools/testing/selftests/alsa/test-pcmtest-driver.c
@@ -127,11 +127,11 @@ FIXTURE_SETUP(pcmtest) {
 	int err;
 
 	if (geteuid())
-		SKIP(exit(-1), "This test needs root to run!");
+		SKIP(return, "This test needs root to run!");
 
 	err = read_patterns();
 	if (err)
-		SKIP(exit(-1), "Can't read patterns. Probably, module isn't loaded");
+		SKIP(return, "Can't read patterns. Probably, module isn't loaded");
 
 	card_name = malloc(127);
 	ASSERT_NE(card_name, NULL);
diff --git a/tools/testing/selftests/mm/hmm-tests.c b/tools/testing/selftests/mm/hmm-tests.c
index 20294553a5dd..d2cfc9b494a0 100644
--- a/tools/testing/selftests/mm/hmm-tests.c
+++ b/tools/testing/selftests/mm/hmm-tests.c
@@ -138,7 +138,7 @@ FIXTURE_SETUP(hmm)
 
 	self->fd = hmm_open(variant->device_number);
 	if (self->fd < 0 && hmm_is_coherent_type(variant->device_number))
-		SKIP(exit(0), "DEVICE_COHERENT not available");
+		SKIP(return, "DEVICE_COHERENT not available");
 	ASSERT_GE(self->fd, 0);
 }
 
@@ -149,7 +149,7 @@ FIXTURE_SETUP(hmm2)
 
 	self->fd0 = hmm_open(variant->device_number0);
 	if (self->fd0 < 0 && hmm_is_coherent_type(variant->device_number0))
-		SKIP(exit(0), "DEVICE_COHERENT not available");
+		SKIP(return, "DEVICE_COHERENT not available");
 	ASSERT_GE(self->fd0, 0);
 	self->fd1 = hmm_open(variant->device_number1);
 	ASSERT_GE(self->fd1, 0);
-- 
2.44.0


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