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(parent: d515756) | patch
x86/io: Remove useless definition of mmiowb()
authorWill Deacon <will.deacon@arm.com>
Fri, 22 Feb 2019 13:03:18 +0000 (13:03 +0000)
committerWill Deacon <will.deacon@arm.com>
Mon, 8 Apr 2019 11:00:01 +0000 (12:00 +0100)
commit08f1f3a72f4cea136686585b81a251baa3539f12
treee3cd9a94d5ec11823340c6f3821a1237c773a644tree | snapshot
parentd51575621f0fd6c6dd62f7b29a0309425681b813commit | diff
x86/io: Remove useless definition of mmiowb()

x86 maps mmiowb() to barrier(), but this is superfluous because a
compiler barrier is already implied by spin_unlock(). Since x86 also
includes asm-generic/io.h in its asm/io.h file, remove the definition
entirely and pick up the dummy definition from core code.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/x86/include/asm/io.h diff | blob | history
Domain: System / Kernel;