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[IPV6]: Move nfheader_len into rt6_info

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The dst member nfheader_len is only used by IPv6.  It's also currently
creating a rather ugly alignment hole in struct dst.  Therefore this patch
moves it from there into struct rt6_info.

It also reorders the fields in rt6_info to minimize holes.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-11-13 21:33:32 -08:00
committed by David S. Miller
parent 550ade8432
commit b4ce92775c
5 changed files with 13 additions and 8 deletions
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11
include/net/ip6_fib.h
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@@ -99,16 +99,21 @@ struct rt6_info
u32 rt6i_flags;
u32 rt6i_metric;
atomic_t rt6i_ref;
/* more non-fragment space at head required */
unsigned short nfheader_len;
u8 rt6i_protocol;
struct fib6_table *rt6i_table;
struct rt6key rt6i_dst;
struct rt6key rt6i_src;
u8 rt6i_protocol;
#ifdef CONFIG_XFRM
u32 rt6i_flow_cache_genid;
#endif
struct rt6key rt6i_src;
};
static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)