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neighbor: Improve neighbour struct layout

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Move arp_queue_len_bytes ahead of arp_queue to remove two 4-byte holes.
Ensure ha element is always 8-byte aligned.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-12-13 08:16:50 -08:00 committed by David S. Miller
parent 2561f97267
commit 4b7cd11f22
1 changed files with 2 additions and 2 deletions
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4
include/net/neighbour.h
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@ -140,8 +140,8 @@ struct neighbour {
unsigned long updated;
rwlock_t lock;
refcount_t refcnt;
struct sk_buff_head arp_queue;
unsigned int arp_queue_len_bytes;
struct sk_buff_head arp_queue;
struct timer_list timer;
unsigned long used;
atomic_t probes;
@ -150,7 +150,7 @@ struct neighbour {
__u8 type;
__u8 dead;
seqlock_t ha_lock;
unsigned char ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))];
unsigned char ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))] __aligned(8);
struct hh_cache hh;
int (*output)(struct neighbour *, struct sk_buff *);
const struct neigh_ops *ops;