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Subject[tip:perf/urgent] jump label: Make arch_jump_label_text_poke_early() optional
Commit-ID:  95bcd683fb694a3e2d0538bf486430a0dfbb4111
Gitweb: http://git.kernel.org/tip/95bcd683fb694a3e2d0538bf486430a0dfbb4111
Author: Steven Rostedt <srostedt@redhat.com>
AuthorDate: Fri, 29 Oct 2010 11:02:43 -0400
Committer: Steven Rostedt <rostedt@goodmis.org>
CommitDate: Fri, 29 Oct 2010 12:56:13 -0400

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 <jbaron@redhat.com>
Cc: David Miller <davem@davemloft.net>
Cc: David Daney <ddaney@caviumnetworks.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <1286218615-24011-2-git-send-email-ddaney@caviumnetworks.com>
LKML-Reference: <20101015201037.703989993@goodmis.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/jump_label.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 12cce78..3b79bd9 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;

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