diff -Nupr src/fs/proc/proc_sysctl.c src/fs/proc/proc_sysctl.c
--- src/fs/proc/proc_sysctl.c	2020-03-11 11:23:26.886602663 +0000
+++ src/fs/proc/proc_sysctl.c	2020-03-11 11:27:30.392214139 +0000
@@ -48,6 +48,7 @@ void proc_sys_poll_notify(struct ctl_tab
 	if (!poll)
 		return;
 
+	printk("kpatch-test: testing gcc .isra function name mangling\n");
 	atomic_inc(&poll->event);
 	wake_up_interruptible(&poll->wait);
 }