linux-kernel - [PATCH] Add braces for union initializer in struct static

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Message-Id: <1488483865-11857-1-git-send-email-victor.erminpour@oracle.com>
Date:   Thu,  2 Mar 2017 11:44:25 -0800
From:   Victor Erminpour <victor.erminpour@...cle.com>
To:     peterz@...radead.org
Cc:     mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: [PATCH] Add braces for union initializer in struct static_key, fix perf Makefile dependency.

Adding explicit braces for nested initialization of struct static_key
when defining STATIC_KEY_INIT_TRUE and STATIC_KEY_INIT_FALSE in
include/linux/jump_label.h. Without the braces, older version of gcc
fail to compile the code.

Also, adding fixdep dependency to JEVENTS_IN make-target in
tools/perf/Makefile.perf.

Signed-off-by: Victor Erminpour <victor.erminpour@...cle.com>
---
 include/linux/jump_label.h | 4 ++--
 tools/perf/Makefile.perf   | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 8e06d75..d536b72 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -166,10 +166,10 @@ extern void arch_jump_label_transform_static(struct jump_entry *entry,
  */
 #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 */
 
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 79fe31f..7e014df 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -407,7 +407,7 @@ build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 $(PERF_IN): prepare FORCE
 	$(Q)$(MAKE) $(build)=perf
 
-$(JEVENTS_IN): FORCE
+$(JEVENTS_IN): fixdep FORCE
 	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=jevents
 
 $(JEVENTS): $(JEVENTS_IN)
-- 
1.8.3.1