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Date: Thu, 10 Oct 2013 10:34:02 +0800
From: Chen Gang <gang.chen@...anux.com>
To: Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Russell King - ARM Linux <linux@....linux.org.uk>,
Catalin Marinas <Catalin.Marinas@....com>,
Will Deacon <will.deacon@....com>
CC: linux390@...ibm.com, linux-s390@...r.kernel.org,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/3] arm: include: asm: atomic.h: use 'unsigned int' and 'atomic'
instead of 'unsigned long' for atomic_clear_mask()
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 <gang.chen@...anux.com>
---
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
--
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