[IPV6]: Convert cork.hop_limit and cork.tclass into u8 instead of int.
Values of those fields are always between 0 and 255 (inclusive),
so use u8 and save some memory on 32bit systems.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 2102d8b..9b59e37 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -315,8 +315,8 @@
struct sk_buff *pktoptions;
struct {
struct ipv6_txoptions *opt;
- int hop_limit;
- int tclass;
+ u8 hop_limit;
+ u8 tclass;
} cork;
};