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Commit 84292b29 authored by Heiko Carstens's avatar Heiko Carstens Committed by Tejun Heo
Browse files

percpu: remove this_cpu_xor() implementation 



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: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: default avatarIngo Molnar <mingo@kernel.org>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent f851c8d8

include/linux/percpu.h

+0 −32
Original line number Diff line number Diff line
@@ -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);					\