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[23/43] atomic: fix position of volatile qualifier

Message ID 1424814498-6993-24-git-send-email-mdroth@linux.vnet.ibm.com
State New
Headers show

Commit Message

Michael Roth Feb. 24, 2015, 9:47 p.m. UTC 
From: Paolo Bonzini <pbonzini@redhat.com>

What needs to be volatile is not the pointer, but the pointed-to
value!

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 2cbcfb281afa041a41f6e4c4da0f5c9314084604)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 include/qemu/atomic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 492bce1..93c2ae2 100644
--- a/include/qemu/atomic.h
+++ b/include/qemu/atomic.h
@@ -122,11 +122,11 @@ 
 #endif
 
 #ifndef atomic_read
-#define atomic_read(ptr)       (*(__typeof__(*ptr) *volatile) (ptr))
+#define atomic_read(ptr)       (*(__typeof__(*ptr) volatile*) (ptr))
 #endif
 
 #ifndef atomic_set
-#define atomic_set(ptr, i)     ((*(__typeof__(*ptr) *volatile) (ptr)) = (i))
+#define atomic_set(ptr, i)     ((*(__typeof__(*ptr) volatile*) (ptr)) = (i))
 #endif
 
 /* These have the same semantics as Java volatile variables.