ARC: Delete stale barrier.h (64ee9f32) · Commits · 戴 / test

Commit ("arch: Clean up asm/barrier.h implementations") wired generic barrier.h for ARC, but failed to delete the existing file. In 3.15, due to rcupdate.h updates, this causes a build breakage on ARC: CC arch/arc/kernel/asm-offsets.s In file included from include/linux/sched.h:45:0, from arch/arc/kernel/asm-offsets.c:9: include/linux/rculist.h: In function __list_add_rcu: include/linux/rculist.h:54:2: error: implicit declaration of function smp_store_release [-Werror=implicit-function-declaration] rcu_assign_pointer(list_next_rcu(prev), new); ^ Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by:

Vineet Gupta <vgupta@synopsys.com> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

arch/arc/include/asm/barrier.h

deleted100644 → 0

+0 −37

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#ifndef __ASM_BARRIER_H
		#define __ASM_BARRIER_H

		#ifndef __ASSEMBLY__

		/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */
		#define mb() __asm__ __volatile__ ("" : : : "memory")
		#define rmb() mb()
		#define wmb() mb()
		#define set_mb(var, value) do { var = value; mb(); } while (0)
		#define set_wmb(var, value) do { var = value; wmb(); } while (0)
		#define read_barrier_depends() mb()

		/* TODO-vineetg verify the correctness of macros here */
		#ifdef CONFIG_SMP
		#define smp_mb() mb()
		#define smp_rmb() rmb()
		#define smp_wmb() wmb()
		#else
		#define smp_mb() barrier()
		#define smp_rmb() barrier()
		#define smp_wmb() barrier()
		#endif

		#define smp_read_barrier_depends() do { } while (0)

		#endif

		#endif

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