From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eva Kurchatova Date: Fri, 21 Aug 2026 18:02:51 +0300 Subject: [Devel] [PATCH vz10] selftests: livepatch: do not require a kernel build tree to run Message-ID: <20260821150254.791935-1-eva.kurchatova@virtuozzo.com> List-Id: setup_config() calls has_kdir(), which skips every livepatch test when /lib/modules/$(uname -r)/build is missing. The tests do not compile anything though, they insmod the pre-built modules from test_modules/, so the check tests a proxy rather than the thing it cares about. That proxy holds only for a source tree or a machine with kernel-devel installed. A packaged testsuite ships the modules pre-built and runs on machines with no kernel build tree at all, and there every single test reports "ok ... # SKIP". A harness that looks for "not ok" then reports the suite as passed, so the whole suite silently tests nothing. Test for the modules instead. Missing modules still skip rather than fail, which is what the KDIR check was there for, and the tests now run wherever the modules are. Fixes: 54ee3526796f ("selftests: livepatch: Avoid running the tests if kernel-devel is missing") https://virtuozzo.atlassian.net/browse/VSTOR-139647 Feature: fix selftests Signed-off-by: Eva Kurchatova --- tools/testing/selftests/livepatch/functions.sh | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh index 46991a029f7c..2dc4f5b4d811 100644 --- a/tools/testing/selftests/livepatch/functions.sh +++ b/tools/testing/selftests/livepatch/functions.sh @@ -38,14 +38,12 @@ function is_root() { fi } -# Check if we can compile the modules before loading them -function has_kdir() { - if [ -z "$KDIR" ]; then - KDIR="/lib/modules/$(uname -r)/build" - fi +# Check that the test modules are there before loading them +function has_test_modules() { + local mods=(test_modules/*.ko) - if [ ! -d "$KDIR" ]; then - echo "skip all tests: KDIR ($KDIR) not available to compile modules." + if [ ! -e "${mods[0]}" ]; then + echo "skip all tests: test modules are not built, run make first" >&2 exit $ksft_skip fi } @@ -130,7 +128,7 @@ function cleanup() { # the ftrace_enabled sysctl. function setup_config() { is_root - has_kdir + has_test_modules push_config set_dynamic_debug set_ftrace_enabled 1 -- 2.55.0