From fb3cfe6e75b9d05c87265e85e67d7caf6e5b44a7 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 24 Jul 2014 16:50:30 +0200 Subject: 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 Signed-off-by: David S. Miller --- net/ieee802154/reassembly.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'net/ieee802154/reassembly.c') 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) -- cgit v1.2.3