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net: Make flow cache paths use a const struct flowi.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-02-22 18:44:31 -08:00
parent 4ca2e68511
commit dee9f4bceb
4 changed files with 23 additions and 18 deletions
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14
net/core/flow.c
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@ -172,9 +172,9 @@ static void flow_new_hash_rnd(struct flow_cache *fc,
static u32 flow_hash_code(struct flow_cache *fc,
struct flow_cache_percpu *fcp,
struct flowi *key)
const struct flowi *key)
{
u32 *k = (u32 *) key;
const u32 *k = (const u32 *) key;
return jhash2(k, (sizeof(*key) / sizeof(u32)), fcp->hash_rnd)
& (flow_cache_hash_size(fc) - 1);
@ -186,17 +186,17 @@ typedef unsigned long flow_compare_t;
* important assumptions that we can here, such as alignment and
* constant size.
*/
static int flow_key_compare(struct flowi *key1, struct flowi *key2)
static int flow_key_compare(const struct flowi *key1, const struct flowi *key2)
{
flow_compare_t *k1, *k1_lim, *k2;
const flow_compare_t *k1, *k1_lim, *k2;
const int n_elem = sizeof(struct flowi) / sizeof(flow_compare_t);
BUILD_BUG_ON(sizeof(struct flowi) % sizeof(flow_compare_t));
k1 = (flow_compare_t *) key1;
k1 = (const flow_compare_t *) key1;
k1_lim = k1 + n_elem;
k2 = (flow_compare_t *) key2;
k2 = (const flow_compare_t *) key2;
do {
if (*k1++ != *k2++)
@ -207,7 +207,7 @@ static int flow_key_compare(struct flowi *key1, struct flowi *key2)
}
struct flow_cache_object *
flow_cache_lookup(struct net *net, struct flowi *key, u16 family, u8 dir,
flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
flow_resolve_t resolver, void *ctx)
{
struct flow_cache *fc = &flow_cache_global;