Commit 4719ffec authored Jul 20, 2020 by Brian Gerst Committed by Thomas Gleixner Jul 23, 2020

x86/percpu: Remove unused PER_CPU() macro



Also remove now unused __percpu_mov_op.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Dennis Zhou <dennis@kernel.org>
Link: https://lkml.kernel.org/r/20200720204925.3654302-11-ndesaulniers@google.com

parent c94055fe

arch/x86/include/asm/percpu.h

+0 −18

Original line number	Diff line number	Diff line
		@@ -4,33 +4,15 @@

		#ifdef CONFIG_X86_64
		#define __percpu_seg gs
		#define __percpu_mov_op movq
		#else
		#define __percpu_seg fs
		#define __percpu_mov_op movl
		#endif

		#ifdef __ASSEMBLY__

		/*
		* PER_CPU finds an address of a per-cpu variable.
		*
		* Args:
		* var - variable name
		* reg - 32bit register
		*
		* The resulting address is stored in the "reg" argument.
		*
		* Example:
		* PER_CPU(cpu_gdt_descr, %ebx)
		*/
		#ifdef CONFIG_SMP
		#define PER_CPU(var, reg) \
		__percpu_mov_op %__percpu_seg:this_cpu_off, reg; \
		lea var(reg), reg
		#define PER_CPU_VAR(var) %__percpu_seg:var
		#else /* ! SMP */
		#define PER_CPU(var, reg) __percpu_mov_op $var, reg
		#define PER_CPU_VAR(var) var
		#endif /* SMP */

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