The arch_{read,write}_relax macros are not used anywhere in the
kernel and are typically just aliases for cpu_relax().
This patch removes the unused definitions for S390. arch_spin_relax is
left alone, since the S390 spinlock internals rely on (and export) this
symbol.
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
arch/s390/include/asm/spinlock.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 701fe8c..8b030e2 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -170,7 +170,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
return _raw_write_trylock_retry(rw);
}
-#define arch_read_relax(lock) cpu_relax()
-#define arch_write_relax(lock) cpu_relax()
-
#endif /* __ASM_SPINLOCK_H */
--
1.8.2.2
--
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