diff mbox

[Xen-devel,09/17] xen: arm: remove atomic_clear_mask()

Message ID 1395330365-9901-9-git-send-email-ian.campbell@citrix.com
State Superseded
Headers show

Commit Message

Ian Campbell March 20, 2014, 3:45 p.m. UTC 
This has no users.

This brings arm32 atomic.h into sync with Linux v3.14-rc7.

arm64/atomic.h requires other patches for this to be the case.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
 xen/include/asm-arm/arm32/atomic.h |   16 ----------------
 xen/include/asm-arm/arm64/atomic.h |   14 --------------
 2 files changed, 30 deletions(-)

Comments

Julien Grall March 20, 2014, 5:35 p.m. UTC | #1 
On 03/20/2014 03:45 PM, Ian Campbell wrote:
> This has no users.
> 
> This brings arm32 atomic.h into sync with Linux v3.14-rc7.
> 
> arm64/atomic.h requires other patches for this to be the case.
> 
> Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
diff mbox

Patch

diff --git a/xen/include/asm-arm/arm32/atomic.h b/xen/include/asm-arm/arm32/atomic.h
index d309f66..3d601d1 100644
--- a/xen/include/asm-arm/arm32/atomic.h
+++ b/xen/include/asm-arm/arm32/atomic.h
@@ -117,22 +117,6 @@  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)
-{
-	unsigned long tmp, tmp2;
-
-	prefetchw(addr);
-	__asm__ __volatile__("@ atomic_clear_mask\n"
-"1:	ldrex	%0, [%3]\n"
-"	bic	%0, %0, %4\n"
-"	strex	%1, %0, [%3]\n"
-"	teq	%1, #0\n"
-"	bne	1b"
-	: "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr)
-	: "r" (addr), "Ir" (mask)
-	: "cc");
-}
-
 #define atomic_inc(v)		atomic_add(1, v)
 #define atomic_dec(v)		atomic_sub(1, v)
 
diff --git a/xen/include/asm-arm/arm64/atomic.h b/xen/include/asm-arm/arm64/atomic.h
index b04e6d5..6b37945 100644
--- a/xen/include/asm-arm/arm64/atomic.h
+++ b/xen/include/asm-arm/arm64/atomic.h
@@ -110,20 +110,6 @@  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)
-{
-	unsigned long tmp, tmp2;
-
-	asm volatile("// atomic_clear_mask\n"
-"1:	ldxr	%0, %2\n"
-"	bic	%0, %0, %3\n"
-"	stxr	%w1, %0, %2\n"
-"	cbnz	%w1, 1b"
-	: "=&r" (tmp), "=&r" (tmp2), "+Q" (*addr)
-	: "Ir" (mask)
-	: "cc");
-}
-
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)