On Tue, 12 Sep 2023 10:10:39 +0900 "Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx> wrote: > From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> > > Fix to unmount the tracefs if the ftracetest mounted it for recovering > system environment. If the tracefs is already mounted, this does nothing. > > Suggested-by: Mark Brown <broonie@xxxxxxxxxx> > Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@xxxxxxxxxxxxx/ > Fixes: cbd965bde74c ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel") > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> > --- > Changes in v2: > - use -n option explictly for testing the string is non-zero. > --- > tool Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> -- Steve