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Subject[PATCH 1/2] percpu: remove this_cpu_xor() implementation
Date
There is not a single user in the whole kernel.
Besides that this_cpu_xor() is broken anyway since it gets
translated to this_cpu_or() (see __pcpu_size_call() line).

So instead of fixing an unused definition just remove it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
include/linux/percpu.h | 32 --------------------------------
1 file changed, 32 deletions(-)

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index cc88172..fd6ffe4 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -375,22 +375,6 @@ do { \
# define this_cpu_or(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val))
#endif

-#ifndef this_cpu_xor
-# ifndef this_cpu_xor_1
-# define this_cpu_xor_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_2
-# define this_cpu_xor_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_4
-# define this_cpu_xor_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_8
-# define this_cpu_xor_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# define this_cpu_xor(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val))
-#endif
-
#define _this_cpu_generic_add_return(pcp, val) \
({ \
typeof(pcp) ret__; \
@@ -629,22 +613,6 @@ do { \
# define __this_cpu_or(pcp, val) __pcpu_size_call(__this_cpu_or_, (pcp), (val))
#endif

-#ifndef __this_cpu_xor
-# ifndef __this_cpu_xor_1
-# define __this_cpu_xor_1(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_2
-# define __this_cpu_xor_2(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_4
-# define __this_cpu_xor_4(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_8
-# define __this_cpu_xor_8(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# define __this_cpu_xor(pcp, val) __pcpu_size_call(__this_cpu_xor_, (pcp), (val))
-#endif
-
#define __this_cpu_generic_add_return(pcp, val) \
({ \
__this_cpu_add(pcp, val); \
--
1.8.3.4


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