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authorDavid S. Miller <davem@davemloft.net>2011-02-22 18:44:31 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-22 18:44:31 -0800
commitdee9f4bceb5fd9dbfcc1567148fccdbf16d6a38a (patch)
tree4b88bec4650dbc539594ae5027d7a1e34c196c88 /net/core/flow.c
parent4ca2e685114c55e6777022a46849795d2aa1d31a (diff)
downloadlwn-dee9f4bceb5fd9dbfcc1567148fccdbf16d6a38a.tar.gz
lwn-dee9f4bceb5fd9dbfcc1567148fccdbf16d6a38a.zip
net: Make flow cache paths use a const struct flowi.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/flow.c')
-rw-r--r--net/core/flow.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/net/core/flow.c b/net/core/flow.c
index 127c8a7ffd61..990703b8863b 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -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;