jump label: Make arch_jump_label_text_poke_early() optional

Some archs do not need to do anything special for jump labels on
startup (like MIPS).  This patch adds a weak function stub for
arch_jump_label_text_poke_early();

Cc: Jason Baron <[email protected]>
Cc: David Miller <[email protected]>
Cc: David Daney <[email protected]>
Suggested-by: Thomas Gleixner <[email protected]>
LKML-Reference: <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>

1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 12cce78e9568..3b79bd938330 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -270,6 +270,13 @@ out:
 	return conflict;
 }
 
+/*
+ * Not all archs need this.
+ */
+void __weak arch_jump_label_text_poke_early(jump_label_t addr)
+{
+}
+
 static __init int init_jump_label(void)
 {
 	int ret;