linux-kernel - [PATCH] percpu: drop useless macro PER_CPU_DEF

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Date:   Tue, 28 Mar 2017 16:35:07 +0800
From:   Cao jin <caoj.fnst@...fujitsu.com>
To:     <linux-arch@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <arnd@...db.de>, <tj@...nel.org>, <cl@...ux.com>
Subject: [PATCH] percpu: drop useless macro PER_CPU_DEF_ATTRIBUTES

Signed-off-by: Cao jin <caoj.fnst@...fujitsu.com>
---
 include/asm-generic/percpu.h | 4 ----
 include/linux/percpu-defs.h  | 4 ++--
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 0504ef8..be90c3d 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -61,10 +61,6 @@ extern void setup_per_cpu_areas(void);
 #define PER_CPU_ATTRIBUTES
 #endif
 
-#ifndef PER_CPU_DEF_ATTRIBUTES
-#define PER_CPU_DEF_ATTRIBUTES
-#endif
-
 #define raw_cpu_generic_read(pcp)					\
 ({									\
 	*raw_cpu_ptr(&(pcp));						\
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 8f16299..c05cc4d 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -91,7 +91,7 @@
 	extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name;		\
 	__PCPU_DUMMY_ATTRS char __pcpu_unique_##name;			\
 	extern __PCPU_ATTRS(sec) __typeof__(type) name;			\
-	__PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES __weak			\
+	__PCPU_ATTRS(sec) __weak					\
 	__typeof__(type) name
 #else
 /*
@@ -101,7 +101,7 @@
 	extern __PCPU_ATTRS(sec) __typeof__(type) name
 
 #define DEFINE_PER_CPU_SECTION(type, name, sec)				\
-	__PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES			\
+	__PCPU_ATTRS(sec)						\
 	__typeof__(type) name
 #endif
 
-- 
2.1.0