netdev - [PATCHv2 net] selftests: pmtu.sh: fix result checking

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Message-ID: <20231031034732.3531008-1-liuhangbin@gmail.com>
Date: Tue, 31 Oct 2023 11:47:32 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>,
	David Ahern <dsahern@...nel.org>,
	linux-kselftest@...r.kernel.org,
	Po-Hsu Lin <po-hsu.lin@...onical.com>,
	Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net] selftests: pmtu.sh: fix result checking

In the PMTU test, when all previous tests are skipped and the new test
passes, the exit code is set to 0. However, the current check mistakenly
treats this as an assignment, causing the check to pass every time.

Consequently, regardless of how many tests have failed, if the latest test
passes, the PMTU test will report a pass.

Fixes: 2a9d3716b810 ("selftests: pmtu.sh: improve the test result processing")
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
v2: use "-eq" instead of "=" to make less error-prone
---
 tools/testing/selftests/net/pmtu.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index f838dd370f6a..b3b2dc5a630c 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -2048,7 +2048,7 @@ run_test() {
 	case $ret in
 		0)
 			all_skipped=false
-			[ $exitcode=$ksft_skip ] && exitcode=0
+			[ $exitcode -eq $ksft_skip ] && exitcode=0
 		;;
 		$ksft_skip)
 			[ $all_skipped = true ] && exitcode=$ksft_skip
-- 
2.41.0