[PATCH] xtensa: fix irq and misc fixes

Update the architecture specific interrupt handling code for Xtensa to support
the new API.  Use generic BUG macros in bug.h, and some minor fixes.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-xtensa/byteorder.h b/include/asm-xtensa/byteorder.h
index 0b15525..0ba72dd 100644
--- a/include/asm-xtensa/byteorder.h
+++ b/include/asm-xtensa/byteorder.h
@@ -14,7 +14,7 @@
 #include <asm/processor.h>
 #include <asm/types.h>
 
-static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
 {
     __u32 res;
     /* instruction sequence from Xtensa ISA release 2/2000 */
@@ -29,7 +29,7 @@
     return res;
 }
 
-static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
+static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
 {
     /* Given that 'short' values are signed (i.e., can be negative),
      * we cannot assume that the upper 16-bits of the register are