diff --git a/Makefile b/Makefile
index a3b3cc4d7ee2..0e202ce51444 100644
--- a/Makefile
+++ b/Makefile
@@ -1070,7 +1070,7 @@ export MODORDER := $(extmod-prefix)modules.order
export MODULES_NSDEPS := $(extmod-prefix)modules.nsdeps
ifeq ($(KBUILD_EXTMOD),)
-core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
+core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ my_syscall/
vmlinux-dirs := $(patsubst %/,%,$(filter %/, \
$(core-y) $(core-m) $(drivers-y) $(drivers-m) \
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 78847b32e137..2d2121edef82 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -360,6 +360,7 @@
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
+440 common hello_syscall sys_hello_syscall
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b951a87da987..20366a8d5b32 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -1006,6 +1006,9 @@ asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
unsigned int flags);
asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
+/* my_syscall/my_syscall.c */
+asmlinkage long sys_hello_syscall(void);
+
/*
* Architecture-specific system calls
*/
diff --git a/my_syscall/Makefile b/my_syscall/Makefile
new file mode 100644
index 000000000000..f8170cd4d5e7
--- /dev/null
+++ b/my_syscall/Makefile
@@ -0,0 +1 @@
+obj-y:=my_syscall.o
diff --git a/my_syscall/my_syscall.c b/my_syscall/my_syscall.c
new file mode 100644
index 000000000000..5af73922f412
--- /dev/null
+++ b/my_syscall/my_syscall.c
@@ -0,0 +1,9 @@
+#include <linux/kernel.h>
+#include <linux/syscalls.h>
+#include "my_syscall.h"
+
+SYSCALL_DEFINE0(hello_syscall)
+{
+ printk("hello_syscall: Hello world!\n");
+ return 0;
+}
diff --git a/my_syscall/my_syscall.h b/my_syscall/my_syscall.h
new file mode 100644
index 000000000000..1ead3f6f4d94
--- /dev/null
+++ b/my_syscall/my_syscall.h
@@ -0,0 +1 @@
+asmlinkage long sys_hello_syscall(void);#include <stdio.h>
#include <sys/syscall.h>
#define HELLO_SYSCALL 440
int main(int argc, char **argv)
{
syscall(HELLO_SYSCALL);
return 0;
}user@host ~ $ dmesg -w
...
[ 169.128284] hello_syscall: Hello world!