x86: merge byteorder_32/64.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

4 files changed, 70 insertions, 104 deletions

diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 435074a..26b0dcda 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -11,8 +11,6 @@ header-y += sigcontext32.h
 header-y += ucontext.h
 header-y += vsyscall32.h
 
-unifdef-y += byteorder_32.h
-unifdef-y += byteorder_64.h
 unifdef-y += e820.h
 unifdef-y += elf_32.h
 unifdef-y += elf_64.h
diff --git a/include/asm-x86/byteorder.h b/include/asm-x86/byteorder.h
index eb14b18..1f2d6d5 100644
--- a/include/asm-x86/byteorder.h
+++ b/include/asm-x86/byteorder.h
@@ -1,13 +1,72 @@
-#ifdef __KERNEL__
-# ifdef CONFIG_X86_32
-#  include "byteorder_32.h"
-# else
-#  include "byteorder_64.h"
-# endif
+#ifndef _ASM_X86_BYTEORDER_H
+#define _ASM_X86_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#ifdef __GNUC__
+
+#ifdef __i386__
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+#ifdef CONFIG_X86_BSWAP
+	__asm__("bswap %0" : "=r" (x) : "0" (x));
 #else
-# ifdef __i386__
-#  include "byteorder_32.h"
-# else
-#  include "byteorder_64.h"
-# endif
+	__asm__("xchgb %b0,%h0\n\t"	/* swap lower bytes	*/
+		"rorl $16,%0\n\t"	/* swap words		*/
+		"xchgb %b0,%h0"		/* swap higher bytes	*/
+		:"=q" (x)
+		: "0" (x));
 #endif
+	return x;
+}
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 val)
+{
+	union {
+		struct { __u32 a,b; } s;
+		__u64 u;
+	} v;
+	v.u = val;
+#ifdef CONFIG_X86_BSWAP
+	asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
+	    : "=r" (v.s.a), "=r" (v.s.b)
+	    : "0" (v.s.a), "1" (v.s.b));
+#else
+	v.s.a = ___arch__swab32(v.s.a);
+	v.s.b = ___arch__swab32(v.s.b);
+	asm("xchgl %0,%1" : "=r" (v.s.a), "=r" (v.s.b) : "0" (v.s.a), "1" (v.s.b));
+#endif
+	return v.u;
+}
+
+#else /* __i386__ */
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+{
+	__asm__("bswapq %0" : "=r" (x) : "0" (x));
+	return x;
+}
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+	__asm__("bswapl %0" : "=r" (x) : "0" (x));
+	return x;
+}
+
+#endif
+
+/* Do not define swab16.  Gcc is smart enough to recognize "C" version and
+   convert it into rotation or exhange.  */
+
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __arch__swab32(x) ___arch__swab32(x)
+
+#define __BYTEORDER_HAS_U64__
+
+#endif /* __GNUC__ */
+
+#include <linux/byteorder/little_endian.h>
+
+#endif /* _ASM_X86_BYTEORDER_H */
diff --git a/include/asm-x86/byteorder_32.h b/include/asm-x86/byteorder_32.h
deleted file mode 100644
index a45470a..0000000
--- a/include/asm-x86/byteorder_32.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _I386_BYTEORDER_H
-#define _I386_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-/* For avoiding bswap on i386 */
-#ifdef __KERNEL__
-#endif
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
-#ifdef CONFIG_X86_BSWAP
-	__asm__("bswap %0" : "=r" (x) : "0" (x));
-#else
-	__asm__("xchgb %b0,%h0\n\t"	/* swap lower bytes	*/
-		"rorl $16,%0\n\t"	/* swap words		*/
-		"xchgb %b0,%h0"		/* swap higher bytes	*/
-		:"=q" (x)
-		: "0" (x));
-#endif
-	return x;
-}
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 val)
-{ 
-	union { 
-		struct { __u32 a,b; } s;
-		__u64 u;
-	} v;
-	v.u = val;
-#ifdef CONFIG_X86_BSWAP
-	asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1" 
-	    : "=r" (v.s.a), "=r" (v.s.b) 
-	    : "0" (v.s.a), "1" (v.s.b)); 
-#else
-   v.s.a = ___arch__swab32(v.s.a); 
-	v.s.b = ___arch__swab32(v.s.b); 
-	asm("xchgl %0,%1" : "=r" (v.s.a), "=r" (v.s.b) : "0" (v.s.a), "1" (v.s.b));
-#endif
-	return v.u;	
-} 
-
-/* Do not define swab16.  Gcc is smart enough to recognize "C" version and
-   convert it into rotation or exhange.  */
-
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __arch__swab32(x) ___arch__swab32(x)
-
-#define __BYTEORDER_HAS_U64__
-
-#endif /* __GNUC__ */
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* _I386_BYTEORDER_H */
diff --git a/include/asm-x86/byteorder_64.h b/include/asm-x86/byteorder_64.h
deleted file mode 100644
index 5e86c86..0000000
--- a/include/asm-x86/byteorder_64.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifndef _X86_64_BYTEORDER_H
-#define _X86_64_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
-{
-	__asm__("bswapq %0" : "=r" (x) : "0" (x));
-	return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
-	__asm__("bswapl %0" : "=r" (x) : "0" (x));
-	return x;
-}
-
-/* Do not define swab16.  Gcc is smart enough to recognize "C" version and
-   convert it into rotation or exhange.  */
-
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab64(x) ___arch__swab64(x)
-
-#endif /* __GNUC__ */
-
-#define __BYTEORDER_HAS_U64__
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* _X86_64_BYTEORDER_H */