[PATCH] samples/damon/prcl: add module parameter description for target_pid

Document 'target_pid' via MODULE_PARM_DESC so its meaning is visible
through kernel command line usage and sysfs interface.

Signed-off-by: Enze Li <[email protected]>
---
 samples/damon/prcl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/samples/damon/prcl.c b/samples/damon/prcl.c
index 842099bd6228..2592fc53e9d7 100644
--- a/samples/damon/prcl.c
+++ b/samples/damon/prcl.c
@@ -18,6 +18,7 @@
 
 static int target_pid __read_mostly;
 module_param(target_pid, int, 0600);
+MODULE_PARM_DESC(target_pid, "Target PID of monitored process");
 
 static int damon_sample_prcl_enable_store(
 		const char *val, const struct kernel_param *kp);
-- 
2.54.0