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-rw-r--r--arch/mips/include/asm/swab.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/mips/include/asm/swab.h b/arch/mips/include/asm/swab.h
index 99993c0d6c12..97c2f81b4b43 100644
--- a/arch/mips/include/asm/swab.h
+++ b/arch/mips/include/asm/swab.h
@@ -38,7 +38,11 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
38} 38}
39#define __arch_swab32 __arch_swab32 39#define __arch_swab32 __arch_swab32
40 40
41#ifdef CONFIG_CPU_MIPS64_R2 41/*
42 * Having already checked for CONFIG_CPU_MIPSR2, enable the
43 * optimized version for 64-bit kernel on r2 CPUs.
44 */
45#ifdef CONFIG_64BIT
42static inline __attribute_const__ __u64 __arch_swab64(__u64 x) 46static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
43{ 47{
44 __asm__( 48 __asm__(
@@ -50,6 +54,6 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
50 return x; 54 return x;
51} 55}
52#define __arch_swab64 __arch_swab64 56#define __arch_swab64 __arch_swab64
53#endif /* CONFIG_CPU_MIPS64_R2 */ 57#endif /* CONFIG_64BIT */
54#endif /* CONFIG_CPU_MIPSR2 */ 58#endif /* CONFIG_CPU_MIPSR2 */
55#endif /* _ASM_SWAB_H */ 59#endif /* _ASM_SWAB_H */