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Thu, 15 Oct 2026 20:27:07 -0700 (PDT) From: Jaewon Jung To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH] selftests/ftrace: Check for dynamic_events before clearing Date: Fri, 16 Oct 2026 12:26:32 +0900 Message-ID: <20261016032655.82009-1-jaewon8868@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Trace instances do not have a dynamic_events file, but clear_dynamic_events() is called during initialization. Check for the file to avoid a "No such file or directory" error. Signed-off-by: Jaewon Jung --- tools/testing/selftests/ftrace/test.d/functions | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 826141e299e5..4f2abb05e365 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -84,6 +84,8 @@ clear_synthetic_events() { # reset all current synthetic events } clear_dynamic_events() { # reset all current dynamic events + [ -f dynamic_events ] || return 0 + again=1 stop=1 # loop mulitple times as some events require other to be removed first -- 2.43.0