Messages in this thread Patch in this message | | | From | Kees Cook <> | Subject | [PATCH v2] selftests/lkdtm: Use "comm" instead of "diff" for dmesg | Date | Wed, 9 Sep 2020 14:17:00 -0700 |
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Instead of full GNU diff (which smaller boot environments may not have), use "comm" which is more available.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Shuah Khan <shuah@kernel.org> Cc: linux-kselftest@vger.kernel.org Fixes: f131d9edc29d ("selftests/lkdtm: Don't clear dmesg when running tests") Signed-off-by: Kees Cook <keescook@chromium.org> --- v2: add --nocheck-order, thanks to Joe Lawrence v1: https://lore.kernel.org/lkml/202006261358.3E8AA623A9@keescook/ --- tools/testing/selftests/lkdtm/run.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/lkdtm/run.sh b/tools/testing/selftests/lkdtm/run.sh index 8383eb89d88a..bb7a1775307b 100755 --- a/tools/testing/selftests/lkdtm/run.sh +++ b/tools/testing/selftests/lkdtm/run.sh @@ -82,7 +82,7 @@ dmesg > "$DMESG" ($SHELL -c 'cat <(echo '"$test"') >'"$TRIGGER" 2>/dev/null) || true # Record and dump the results -dmesg | diff --changed-group-format='%>' --unchanged-group-format='' "$DMESG" - > "$LOG" || true +dmesg | comm --nocheck-order -13 "$DMESG" - > "$LOG" || true cat "$LOG" # Check for expected output -- 2.25.1
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