diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index b4293fc8b798..1db9bd2281d7 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -457,7 +457,6 @@ static inline void rdtsc_barrier(void)
 	alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
 }
 
-#ifdef CONFIG_MCORE2
 /*
  * We handle most unaligned accesses in hardware.  On the other hand
  * unaligned DMA can be quite expensive on some Nehalem processors.
@@ -465,5 +464,4 @@ static inline void rdtsc_barrier(void)
  * Based on this we disable the IP header alignment in network drivers.
  */
 #define NET_IP_ALIGN	0
-#endif
 #endif /* _ASM_X86_SYSTEM_H */