gf128_add can be marked as __pure2

[Eitan Adler]

Is there any reason not to apply this patch?

__pure2 means  __attribute__((const)) which is correct in this case as
 gf128_add read no global memory:


Index: gfmult.h
===================================================================
--- gfmult.h (revision 329611)
+++ gfmult.h (working copy)
@@ -108,7 +108,7 @@ gf128_write(struct gf128 v, uint8_t *buf)
  be64enc(buf, v.v[1]);
 }

-static inline struct gf128 __pure /* XXX - __pure2 instead */
+static inline struct gf128 __pure2
 gf128_add(struct gf128 a, struct gf128 b)
 {
  a.v[0] ^= b.v[0];


-- 
Eitan Adler