tree 773f446b9a609e771ff75ebd9bfacd4d3d52f99f
parent accc5b4f902b0ba83b2c6c48f2d9e7c204cef4a8
author David S. Miller <davem@davemloft.net> 1241386990 -0700
committer David S. Miller <davem@davemloft.net> 1241386990 -0700

net: Avoid modulus in skb_tx_hash() for forwarding case.

Based almost entirely upon a patch by Eric Dumazet.

The common case is to have num-tx-queues <= num_rx_queues
and even if num_tx_queues is larger it will not be significantly
larger.

Therefore, a subtraction loop is always going to be faster than
modulus.

Signed-off-by: David S. Miller <davem@davemloft.net>