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net: align static siphash keys

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siphash keys use 16 bytes.

Define siphash_aligned_key_t macro so that we can make sure they
are not crossing a cache line boundary.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet
2021-11-15 09:23:03 -08:00
committed by Jakub Kicinski
parent 7071732c26
commit 49ecc2e9c3
11 changed files with 14 additions and 12 deletions
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2
net/ipv4/route.c
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@ -602,7 +602,7 @@ static void fnhe_remove_oldest(struct fnhe_hash_bucket *hash)
static u32 fnhe_hashfun(__be32 daddr)
{
static siphash_key_t fnhe_hash_key __read_mostly;
static siphash_aligned_key_t fnhe_hash_key;
u64 hval;
net_get_random_once(&fnhe_hash_key, sizeof(fnhe_hash_key));