Mark braced-groups within expressions with __extension__

[urcu.git] / urcu / arch / ppc.h

diff --git a/urcu/arch/ppc.h b/urcu/arch/ppc.h
index 95393ea0be0ee89b888c64ad53322e41e30631c8..1068b288027bda8a5c1f47ce0229e484de827fc6 100644 (file)
--- a/urcu/arch/ppc.h
+++ b/urcu/arch/ppc.h
@@ -58,6 +58,7 @@ extern "C" {
 #define cmm_smp_wmb()    __asm__ __volatile__ (LWSYNC_OPCODE:::"memory")
 
 #define mftbl()                                                \
+       __extension__                                   \
        ({                                              \
                unsigned long rval;                     \
                __asm__ __volatile__ ("mftbl %0" : "=r" (rval));        \
@@ -65,6 +66,7 @@ extern "C" {
        })
 
 #define mftbu()                                                \
+       __extension__                                   \
        ({                                              \
                unsigned long rval;                     \
                __asm__ __volatile__ ("mftbu %0" : "=r" (rval));        \
@@ -72,6 +74,7 @@ extern "C" {
        })
 
 #define mftb()                                         \
+       __extension__                                   \
        ({                                              \
                unsigned long long rval;                \
                __asm__ __volatile__ ("mftb %0" : "=r" (rval));         \