From: Kevin Hao <haoke...@gmail.com>
Some arches (powerpc at least) would like to invoke jump_label_init()
much earlier in boot. So check static_key_initialized in order to make
sure this function runs only once.
Signed-off-by: Kevin Hao <haoke...@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
kernel/jump_label.c | 3 +++
1 file changed, 3 insertions(+)
v3: Updated change log.
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 05254eeb4b4e..14d81315fd7e 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -205,6 +205,9 @@ void __init jump_label_init(void)
struct static_key *key = NULL;
struct jump_entry *iter;
+ if (static_key_initialized)
+ return;
+
jump_label_lock();
jump_label_sort_entries(iter_start, iter_stop);
--
2.7.4
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