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inet: frag: remove hash size assumptions from callers

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hide actual hash size from individual users: The _find
function will now fold the given hash value into the required range.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal
2014-07-24 16:50:30 +02:00
committed by David S. Miller
parent 36c7778218
commit fb3cfe6e75
5 changed files with 19 additions and 23 deletions
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12
net/ieee802154/reassembly.c
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@@ -50,15 +50,11 @@ static unsigned int lowpan_hash_frag(__be16 tag, u16 d_size,
const struct ieee802154_addr *saddr,
const struct ieee802154_addr *daddr)
{
u32 c;
net_get_random_once(&lowpan_frags.rnd, sizeof(lowpan_frags.rnd));
c = jhash_3words(ieee802154_addr_hash(saddr),
ieee802154_addr_hash(daddr),
(__force u32)(tag + (d_size << 16)),
lowpan_frags.rnd);
return c & (INETFRAGS_HASHSZ - 1);
return jhash_3words(ieee802154_addr_hash(saddr),
ieee802154_addr_hash(daddr),
(__force u32)(tag + (d_size << 16)),
lowpan_frags.rnd);
}
static unsigned int lowpan_hashfn(const struct inet_frag_queue *q)