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commit 8eb1518642738c6892bd629b46043513a3bf1a6a upstream. An update was made to up the module ref count when a synthetic event is registered for both trace and perf events. But if perf is not configured in, the perf enums used will cause the kernel to fail to build. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Douglas Raillard <douglas.raillard@arm.com> Link: https://lore.kernel.org/20250323152151.528b5ced@batman.local.home Fixes: 21581dd4e7ff ("tracing: Ensure module defining synth event cannot be unloaded while tracing") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202503232230.TeREVy8R-lkp@intel.com/ Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>