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(parent: 8d2f9e8) | patch
net: remove useless prefetch() call
authorEric Dumazet <dada1@cosmosbay.com>
Sat, 21 Mar 2009 20:42:55 +0000 (13:42 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sat, 21 Mar 2009 20:42:55 +0000 (13:42 -0700)
commited734a97c6a81b644bd648afd7a337deb0ccd7e5
tree2c030345bf9fb6ab6228d4757a96f9f7109fa60etree | snapshot (tar.gz zip)
parent8d2f9e81169b8120cf2b4872930ae491b17c27b8commit | diff
net: remove useless prefetch() call

There is no gain using prefetch() in dev_hard_start_xmit(), since
we already had to read ops->ndo_select_queue pointer in dev_pick_tx(),
and both pointers are probably located in the same cache line.

This prefetch call slows down fast path because of a stall in address
computation.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dev.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)