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| author |   Florian Westphal <fw@strlen.de> | 2014-07-24 16:50:30 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-07-27 22:34:35 -0700 |
| commit | fb3cfe6e75b9d05c87265e85e67d7caf6e5b44a7 (patch) | |
| tree | 3dfe9c9ddebc20bd61571db6d23ff660a67a3485 /net/ieee802154 | |
| parent | inet: frag: constify match, hashfn and constructor arguments (diff) | |
| download | linux-dev-fb3cfe6e75b9d05c87265e85e67d7caf6e5b44a7.tar.xz linux-dev-fb3cfe6e75b9d05c87265e85e67d7caf6e5b44a7.zip | |
inet: frag: remove hash size assumptions from callers
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>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/reassembly.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/net/ieee802154/reassembly.c b/net/ieee802154/reassembly.c index a5588be18024..a707995fd4d7 100644 --- a/net/ieee802154/reassembly.c +++ b/net/ieee802154/reassembly.c @@ -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) |