On Fri, 5 Apr 2019, Will Deacon wrote:
> 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, we can remove the
s/we can//
> definition entirely and pick up the d
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, we can remove the
definition entirely and pick up the dummy definition from core code.
Signed-off-by: Will Deacon
2 matches
Mail list logo
