From mboxrd@z Thu Jan 1 00:00:00 1970 From: gang.chen@asianux.com (Chen Gang) Date: Thu, 10 Oct 2013 10:35:21 +0800 Subject: [PATCH 3/3] arm64: include: asm: atomic.h: use 'unsigned int' and 'atomic_t' instead of 'unsigned long' for atomic_clear_mask() In-Reply-To: <5256121A.9030504@asianux.com> References: <52561137.3070608@asianux.com> <5256117A.4000009@asianux.com> <5256121A.9030504@asianux.com> Message-ID: <52561269.60900@asianux.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org In current kernel wide source, for arm64, 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 --- arch/arm64/include/asm/atomic.h | 13 +++++++------ 1 files changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h index 8363644..58808fc 100644 --- a/arch/arm64/include/asm/atomic.h +++ b/arch/arm64/include/asm/atomic.h @@ -126,16 +126,17 @@ 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: ldxr %0, %2\n" -" bic %0, %0, %3\n" -" stxr %w1, %0, %2\n" +"1: ldxr %w0, %2\n" +" bic %w0, %w0, %w3\n" +" stxr %w1, %w0, %2\n" " cbnz %w1, 1b" - : "=&r" (tmp), "=&r" (tmp2), "+Q" (*addr) + : "=&r" (tmp), "=&r" (tmp2), "+Q" (ptr->counter) : "Ir" (mask) : "cc"); } -- 1.7.7.6