diff --git a/libc/kernel/uapi/linux/swab.h b/libc/kernel/uapi/linux/swab.h
index 6225a76..5d240e1 100644
--- a/libc/kernel/uapi/linux/swab.h
+++ b/libc/kernel/uapi/linux/swab.h
@@ -15,29 +15,14 @@
 #define ___constant_swab64(x) ((__u64) ((((__u64) (x) & (__u64) 0x00000000000000ffULL) << 56) | (((__u64) (x) & (__u64) 0x000000000000ff00ULL) << 40) | (((__u64) (x) & (__u64) 0x0000000000ff0000ULL) << 24) | (((__u64) (x) & (__u64) 0x00000000ff000000ULL) << 8) | (((__u64) (x) & (__u64) 0x000000ff00000000ULL) >> 8) | (((__u64) (x) & (__u64) 0x0000ff0000000000ULL) >> 24) | (((__u64) (x) & (__u64) 0x00ff000000000000ULL) >> 40) | (((__u64) (x) & (__u64) 0xff00000000000000ULL) >> 56)))
 #define ___constant_swahw32(x) ((__u32) ((((__u32) (x) & (__u32) 0x0000ffffUL) << 16) | (((__u32) (x) & (__u32) 0xffff0000UL) >> 16)))
 #define ___constant_swahb32(x) ((__u32) ((((__u32) (x) & (__u32) 0x00ff00ffUL) << 8) | (((__u32) (x) & (__u32) 0xff00ff00UL) >> 8)))
-#ifdef __arch_swab16
-#else
-#endif
-#ifdef __arch_swab32
-#else
-#endif
-#ifdef __arch_swab64
-#elif defined(__SWAB_64_THRU_32__)
+#ifdef __SWAB_64_THRU_32__
 #else
 #endif
 static inline __attribute__((__const__)) __u32 __fswahw32(__u32 val) {
-#ifdef __arch_swahw32
-  return __arch_swahw32(val);
-#else
   return ___constant_swahw32(val);
-#endif
 }
 static inline __attribute__((__const__)) __u32 __fswahb32(__u32 val) {
-#ifdef __arch_swahb32
-  return __arch_swahb32(val);
-#else
   return ___constant_swahb32(val);
-#endif
 }
 #define __swab16(x) (__u16) __builtin_bswap16((__u16) (x))
 #define __swab32(x) (__u32) __builtin_bswap32((__u32) (x))
@@ -48,73 +33,33 @@
 #define __swahw32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahw32(x) : __fswahw32(x))
 #define __swahb32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahb32(x) : __fswahb32(x))
 static __always_inline __u16 __swab16p(const __u16 * p) {
-#ifdef __arch_swab16p
-  return __arch_swab16p(p);
-#else
   return __swab16(* p);
-#endif
 }
 static __always_inline __u32 __swab32p(const __u32 * p) {
-#ifdef __arch_swab32p
-  return __arch_swab32p(p);
-#else
   return __swab32(* p);
-#endif
 }
 static __always_inline __u64 __swab64p(const __u64 * p) {
-#ifdef __arch_swab64p
-  return __arch_swab64p(p);
-#else
   return __swab64(* p);
-#endif
 }
 static inline __u32 __swahw32p(const __u32 * p) {
-#ifdef __arch_swahw32p
-  return __arch_swahw32p(p);
-#else
   return __swahw32(* p);
-#endif
 }
 static inline __u32 __swahb32p(const __u32 * p) {
-#ifdef __arch_swahb32p
-  return __arch_swahb32p(p);
-#else
   return __swahb32(* p);
-#endif
 }
 static inline void __swab16s(__u16 * p) {
-#ifdef __arch_swab16s
-  __arch_swab16s(p);
-#else
   * p = __swab16p(p);
-#endif
 }
 static __always_inline void __swab32s(__u32 * p) {
-#ifdef __arch_swab32s
-  __arch_swab32s(p);
-#else
   * p = __swab32p(p);
-#endif
 }
 static __always_inline void __swab64s(__u64 * p) {
-#ifdef __arch_swab64s
-  __arch_swab64s(p);
-#else
   * p = __swab64p(p);
-#endif
 }
 static inline void __swahw32s(__u32 * p) {
-#ifdef __arch_swahw32s
-  __arch_swahw32s(p);
-#else
   * p = __swahw32p(p);
-#endif
 }
 static inline void __swahb32s(__u32 * p) {
-#ifdef __arch_swahb32s
-  __arch_swahb32s(p);
-#else
   * p = __swahb32p(p);
-#endif
 }
 #endif