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@kernel.org>

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index e01b31b..0a54199 100755 (executable)
--- 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>'?