diff -Nupr src.orig/fs/proc/proc_sysctl.c src/fs/proc/proc_sysctl.c --- src.orig/fs/proc/proc_sysctl.c 2020-03-10 10:35:54.568563834 -0400 +++ src/fs/proc/proc_sysctl.c 2020-03-10 10:36:17.393517742 -0400 @@ -46,6 +46,7 @@ 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); }