[SPARC]: Merge asm-sparc{,64}/bug.h

Note that because of minimum compiler version enforcement in
linux/compiler.h these days the check for sparc32 buggy
__builtin_trap() can be safely removed.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/asm-sparc/bug.h

@@ -2,28 +2,16 @@
 #define _SPARC_BUG_H
 
 #ifdef CONFIG_BUG
-/* Only use the inline asm until a gcc release that can handle __builtin_trap
- * -rob 2003-06-25
- *
- * gcc-3.3.1 and later will be OK -DaveM
- */
-#if (__GNUC__ > 3) || \
-    (__GNUC__ == 3 && __GNUC_MINOR__ > 3) || \
-    (__GNUC__ == 3 && __GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ >= 4)
-#define __bug_trap()		__builtin_trap()
-#else
-#define __bug_trap()					\
-	__asm__ __volatile__ ("t 0x5\n\t" : : )
-#endif
+#include <linux/compiler.h>
 
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 extern void do_BUG(const char *file, int line);
 #define BUG() do {					\
 	do_BUG(__FILE__, __LINE__);			\
-	__bug_trap();				\
+	__builtin_trap();				\
 } while (0)
 #else
-#define BUG()		__bug_trap()
+#define BUG()		__builtin_trap()
 #endif
 
 #define HAVE_ARCH_BUG

include/asm-sparc64/bug.h

-#ifndef _SPARC64_BUG_H
-#define _SPARC64_BUG_H
-
-#ifdef CONFIG_BUG
-#include <linux/compiler.h>
-
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-extern void do_BUG(const char *file, int line);
-#define BUG() do {					\
-	do_BUG(__FILE__, __LINE__);			\
-	__builtin_trap();				\
-} while (0)
-#else
-#define BUG()		__builtin_trap()
-#endif
-
-#define HAVE_ARCH_BUG
-#endif
-
-#include <asm-generic/bug.h>
-
-#endif
+#include <asm-sparc/bug.h>