sh: fix smp_store_mb for !SMP
sh variant of smp_store_mb() calls xchg() on !SMP which is stronger than
implied by both the name and the documentation.
commit 90a3ccb0be
("sh: define __smp_xxx,
fix smp_store_mb for !SMP") was supposed to fix it but
left the bug in place.
Drop smp_store_mb, so that code in asm-generic/barrier.h
will define it correctly depending on CONFIG_SMP.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -33,7 +33,6 @@
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#endif
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#define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
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#define smp_store_mb(var, value) __smp_store_mb(var, value)
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#include <asm-generic/barrier.h>
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