net: Optimize skb_tx_hash() by eliminating a comparison
authorKrishna Kumar <krkumar2@in.ibm.com>
Thu, 19 Feb 2009 01:55:02 +0000 (17:55 -0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 19 Feb 2009 01:55:02 +0000 (17:55 -0800)
commite88721f87d8caa679e62d6004a9a5661f1ac7b0e
tree4e5ad54f7445631ac2ec5750dbe245e6c26a140c
parent38bb045d493cc166920834087acd934dedc1b5d5
net: Optimize skb_tx_hash() by eliminating a comparison

Optimize skb_tx_hash() by eliminating a comparison that executes for
every packet. skb_tx_hashrnd initialization is moved to a later part of
the startup sequence, namely after the "random" driver is initialized.

Rebooted the system three times and verified that the code generates
different random numbers each time.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dev.c