linux-kernel - [PATCH rcu 09/21] torture: Make kvm-recheck.sh skip kcsan.sum for build-only runs

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Message-Id: <20210721210140.787717-9-paulmck@kernel.org>
Date:   Wed, 21 Jul 2021 14:01:28 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, akpm@...ux-foundation.org,
        mathieu.desnoyers@...icios.com, josh@...htriplett.org,
        tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
        dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com,
        oleg@...hat.com, joel@...lfernandes.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH rcu 09/21] torture: Make kvm-recheck.sh skip kcsan.sum for build-only runs

Currently, kvm-recheck.sh attempts to create a kcsan.sum file even for
build-only runs.  This results in false-positive bash errors due to
there being no console.log files in that case.  This commit therefore
makes kvm-recheck.sh skip creating the kcsan.sum file for build-only runs.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index e01b31b870441..0a5419982ab3e 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
@@ -74,7 +74,10 @@ do
 	done
 	if test -f "$rd/kcsan.sum"
 	then
-		if grep -q CONFIG_KCSAN=y $T
+		if ! test -f $T
+		then
+			:
+		elif grep -q CONFIG_KCSAN=y $T
 		then
 			echo "Compiler or architecture does not support KCSAN!"
 			echo Did you forget to switch your compiler with '--kmake-arg CC=<cc-that-supports-kcsan>'?
-- 
2.31.1.189.g2e36527f23