From: Hangbin Liu Date: Tue, 19 Aug 2025 07:33:48 +0000 (+0000) Subject: selftests: net: bpf_offload: print loaded programs on mismatch X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=eacb6e408dc861fb93baf10d6837204a3b39e915;p=users%2Fgriffoul%2Flinux.git selftests: net: bpf_offload: print loaded programs on mismatch The test sometimes fails due to an unexpected number of loaded programs. e.g FAIL: 2 BPF programs loaded, expected 1 File "/usr/libexec/kselftests/net/./bpf_offload.py", line 940, in progs = bpftool_prog_list(expected=1) File "/usr/libexec/kselftests/net/./bpf_offload.py", line 187, in bpftool_prog_list fail(True, "%d BPF programs loaded, expected %d" % File "/usr/libexec/kselftests/net/./bpf_offload.py", line 89, in fail tb = "".join(traceback.extract_stack().format()) However, the logs do not show which programs were actually loaded, making it difficult to debug the failure. Add printing of the loaded programs when a mismatch is detected to help troubleshoot such errors. The list is printed on a new line to avoid breaking the current log format. Signed-off-by: Hangbin Liu Link: https://patch.msgid.link/20250819073348.387972-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski --- diff --git a/tools/testing/selftests/net/bpf_offload.py b/tools/testing/selftests/net/bpf_offload.py index b2c271b79240..c856d266c8f3 100755 --- a/tools/testing/selftests/net/bpf_offload.py +++ b/tools/testing/selftests/net/bpf_offload.py @@ -184,8 +184,8 @@ def bpftool_prog_list(expected=None, ns="", exclude_orphaned=True): progs = [ p for p in progs if not p['orphaned'] ] if expected is not None: if len(progs) != expected: - fail(True, "%d BPF programs loaded, expected %d" % - (len(progs), expected)) + fail(True, "%d BPF programs loaded, expected %d\nLoaded Progs:\n%s" % + (len(progs), expected, pp.pformat(progs))) return progs def bpftool_map_list(expected=None, ns=""):