From: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx> commit 41b02ea4c0adfcc6761fbfed42c3ce6b6412d881 upstream. If errexit is enabled ('set -e'), loopy_wait -- or busywait and others using it -- will stop after the first failure. Note that if the returned status of loopy_wait is checked, and even if errexit is enabled, Bash will not stop at the first error. Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Cc: stable@xxxxxxxxxxxxxxx Acked-by: Geliang Tang <geliang@xxxxxxxxxx> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx> Reviewed-by: Hangbin Liu <liuhangbin@xxxxxxxxx> Link: https://lore.kernel.org/r/20240605-upstream-net-20240605-selftests-net-lib-fixes-v1-1-b3afadd368c9@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/net/lib.sh | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -63,9 +63,7 @@ loopy_wait() while true do local out - out=$("$@") - local ret=$? - if ((!ret)); then + if out=$("$@"); then echo -n "$out" return 0 fi Patches currently in stable-queue which might be from matttbe@xxxxxxxxxx are queue-6.9/selftests-net-lib-support-errexit-with-busywait.patch queue-6.9/selftests-net-lib-avoid-error-removing-empty-netns-name.patch