Fix FRV cmpxchg_local

Fix the FRV cmpxchg_local by breaking the following header dependency loop :

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h
  -> asm-frv/system.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

and

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

In order to fix this :
- Move the atomic_test_and_ *_mask inlines from asm-frv/atomic.h (why are they
  there at all anyway ? They are not touching atomic_t variables!) to
  asm-frv/bitops.h.

Also fix a build issue with cmpxchg : it does not cast to (unsigned long *)
like other architectures, to deal with it in the cmpxchg_local macro.

FRV builds fine with this patch.

Thanks to Adrian Bunk <bunk@kernel.org> for spotting this bug.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index 59be5443a68f..b400cea81487 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/linkage.h>
+#include <linux/kernel.h>
 
 struct thread_struct;
 
@@ -276,7 +277,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 {
 	switch (size) {
 	case 4:
-		return cmpxchg(ptr, old, new);
+		return cmpxchg((unsigned long *)ptr, old, new);
 	default:
 		return __cmpxchg_local_generic(ptr, old, new, size);
 	}