rhashtable: Eliminate unnecessary branch in rht_key_hashfn

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When rht_key_hashfn is called from rhashtable itself and params
is equal to ht->p, there is no point in checking params.key_len
and falling back to ht->p.key_len.

For some reason gcc couldn't figure out that params is the same
as ht->p.  So let's help it by only checking params.key_len when
it's a constant.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Herbert Xu 2015-03-24 00:50:20 +11:00 • committed by David S. Miller

parent d88252f9bb

commit de91b25c80

1 changed files with 6 additions and 2 deletions

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include/linux/rhashtable.h

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