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-rw-r--r--include/asm-ppc64/processor.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h
index eb33d33cfd6d..cae65b30adb8 100644
--- a/include/asm-ppc64/processor.h
+++ b/include/asm-ppc64/processor.h
@@ -642,11 +642,17 @@ static inline unsigned long __pack_fe01(unsigned int fpmode)
642 642
643static inline void prefetch(const void *x) 643static inline void prefetch(const void *x)
644{ 644{
645 if (unlikely(!x))
646 return;
647
645 __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x)); 648 __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x));
646} 649}
647 650
648static inline void prefetchw(const void *x) 651static inline void prefetchw(const void *x)
649{ 652{
653 if (unlikely(!x))
654 return;
655
650 __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x)); 656 __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x));
651} 657}
652 658