diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index 092e4250a4583f735140221d5f4dd7a4667d3d69..10ca03d0a250e280682479c4228536120c2cee4f 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -297,6 +297,7 @@ extern int
 kgdb_handle_exception(int ex_vector, int signo, int err_code,
 		      struct pt_regs *regs);
 extern int kgdb_nmicallback(int cpu, void *regs);
+extern void gdbstub_exit(int status);
 
 extern int			kgdb_single_step;
 extern atomic_t			kgdb_active;
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 481a7bd2dfe752267ba3273a1bb8e4a972c17fa5..a11db956dd62c4c5a5fa22699ccd3662a88f00bc 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -1093,3 +1093,33 @@ int gdbstub_state(struct kgdb_state *ks, char *cmd)
 	put_packet(remcom_out_buffer);
 	return 0;
 }
+
+/**
+ * gdbstub_exit - Send an exit message to GDB
+ * @status: The exit code to report.
+ */
+void gdbstub_exit(int status)
+{
+	unsigned char checksum, ch, buffer[3];
+	int loop;
+
+	buffer[0] = 'W';
+	buffer[1] = hex_asc_hi(status);
+	buffer[2] = hex_asc_lo(status);
+
+	dbg_io_ops->write_char('$');
+	checksum = 0;
+
+	for (loop = 0; loop < 3; loop++) {
+		ch = buffer[loop];
+		checksum += ch;
+		dbg_io_ops->write_char(ch);
+	}
+
+	dbg_io_ops->write_char('#');
+	dbg_io_ops->write_char(hex_asc_hi(checksum));
+	dbg_io_ops->write_char(hex_asc_lo(checksum));
+
+	/* make sure the output is flushed, lest the bootloader clobber it */
+	dbg_io_ops->flush();
+}