[PATCH] gfp flags annotations - part 1

- added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net/sungem.h

@@ -1036,7 +1036,7 @@ struct gem {
 #define ALIGNED_RX_SKB_ADDR(addr) \
         ((((unsigned long)(addr) + (64UL - 1UL)) & ~(64UL - 1UL)) - (unsigned long)(addr))
 static __inline__ struct sk_buff *gem_alloc_skb(int size,
-						unsigned int __nocast gfp_flags)
+						gfp_t gfp_flags)
 {
 	struct sk_buff *skb = alloc_skb(size + 64, gfp_flags);