Subject: [PATCH 2/3] arm: include: asm: atomic.h: use 'unsigned int' and 'atomic' instead of 'unsigned long' for atomic_clear_mask()

From: [email-masked] (Chen Gang)
Date: Thu, 10 Oct 2013 10:34:02 +0800

In current kernel wide source, for arm, only s390 scsi drivers use
atomic_clear_mask(), now, s390 itself need use 'unsigned int' and
'atomic_t', so need match s390's atomic_clear_mask().

Signed-off-by: Chen Gang <[email-masked]>
---
 arch/arm/include/asm/atomic.h |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index da1c77d..0832a7f 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -134,9 +134,10 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 	return oldval;
 }
 
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *ptr)
 {
-	unsigned long tmp, tmp2;
+	unsigned int tmp;
+	unsigned long tmp2;
 
 	__asm__ __volatile__("@ atomic_clear_mask\n"
 "1:	ldrex	%0, [%3]\n"
@@ -144,8 +145,8 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 "	strex	%1, %0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
-	: "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr)
-	: "r" (addr), "Ir" (mask)
+	: "=&r" (tmp), "=&r" (tmp2), "+Qo" (ptr->counter)
+	: "r" (&ptr->counter), "Ir" (mask)
 	: "cc");
 }
 
@@ -197,12 +198,12 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
 	unsigned long flags;
 
 	raw_local_irq_save(flags);
-	*addr &= ~mask;
+	v->counter &= ~mask;
 	raw_local_irq_restore(flags);
 }
 
-- 
1.7.7.6