[for-next][PATCH 4/7] jump_label: Fix anonymous union initialization

From: Steven Rostedt
Date: Fri Mar 03 2017 - 09:47:48 EST


From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Pre-4.6 gcc do not allow direct static initialization of members of
anonymous structs/unions. After commit 3821fd35b58d ("jump_label:
Reduce the size of struct static_key") STATIC_KEY_INIT_{TRUE|FALSE}
definitions cannot be compiled with those older compilers.

Placing initializers inside curved brackets works around this problem.

Link: http://lkml.kernel.org/r/1488299542-30765-1-git-send-email-boris.ostrovsky@xxxxxxxxxx

Fixes: 3821fd35b58d ("jump_label: Reduce the size of struct static_key")
Reviewed-by: Jason Baron <jbaron@xxxxxxxxxx>
Compiled-by: Chris Mason <clm@xxxxxx>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
include/linux/jump_label.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 680c98b2f41c..a7f90117cf7d 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -166,10 +166,10 @@ extern void static_key_disable(struct static_key *key);
*/
#define STATIC_KEY_INIT_TRUE \
{ .enabled = { 1 }, \
- .entries = (void *)JUMP_TYPE_TRUE }
+ { .entries = (void *)JUMP_TYPE_TRUE } }
#define STATIC_KEY_INIT_FALSE \
{ .enabled = { 0 }, \
- .entries = (void *)JUMP_TYPE_FALSE }
+ { .entries = (void *)JUMP_TYPE_FALSE } }

#else /* !HAVE_JUMP_LABEL */

--
2.10.2