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staging: octeon-usb: delete redudant prefetches 

cvmx_usb_pipe fits into a cache-line so additional prefetches are not
really helping anything.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aaro Koskinen 2014-05-11 14:15:19 +03:00 committed by Greg Kroah-Hartman
parent 1949551393
commit a4570140b3
1 changed files with 0 additions and 2 deletions
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2
drivers/staging/octeon-usb/octeon-hcd.c
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@ -2008,7 +2008,6 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(
((((int)current_frame - (int)pipe->split_sc_frame) ((((int)current_frame - (int)pipe->split_sc_frame)
& 0x7f) < 0x40)) && & 0x7f) < 0x40)) &&
(!usb->active_split || (usb->active_split == t))) { (!usb->active_split || (usb->active_split == t))) {
CVMX_PREFETCH(pipe, 128);
CVMX_PREFETCH(t, 0); CVMX_PREFETCH(t, 0);
return pipe; return pipe;
} }
@ -2660,7 +2659,6 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
/* Make sure this channel is tied to a valid pipe */ /* Make sure this channel is tied to a valid pipe */
pipe = usb->pipe_for_channel[channel]; pipe = usb->pipe_for_channel[channel];
CVMX_PREFETCH(pipe, 0); CVMX_PREFETCH(pipe, 0);
CVMX_PREFETCH(pipe, 128);
if (!pipe) if (!pipe)
return 0; return 0;
transaction = list_first_entry(&pipe->transactions, transaction = list_first_entry(&pipe->transactions,