AcoSail/kernel_optimize_test
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[PATCH] USB: ati_remote: use time_before() and friends

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They deal with wrapping correctly and are nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Marcelo Feitoza Parisi 2005-12-01 00:50:39 +03:00 committed by Greg Kroah-Hartman
parent 95f209f936
commit f0b80fbf29
1 changed files with 9 additions and 8 deletions
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17
drivers/usb/input/ati_remote.c
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@ -96,6 +96,7 @@
#include <linux/usb.h>
#include <linux/usb_input.h>
#include <linux/wait.h>
#include <linux/jiffies.h>
/*
* Module and Version Information, Module Parameters
@ -471,7 +472,7 @@ static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
/* Filter duplicate events which happen "too close" together. */
if ((ati_remote->old_data[0] == data[1]) &&
(ati_remote->old_data[1] == data[2]) &&
((ati_remote->old_jiffies + FILTER_TIME) > jiffies)) {
time_before(jiffies, ati_remote->old_jiffies + FILTER_TIME)) {
ati_remote->repeat_count++;
} else {
ati_remote->repeat_count = 0;
@ -506,16 +507,16 @@ static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
* pad down, so we increase acceleration, ramping up over two seconds to
* a maximum speed. The acceleration curve is #defined above.
*/
if ((jiffies - ati_remote->old_jiffies) > (HZ >> 2)) {
if (time_after(jiffies, ati_remote->old_jiffies + (HZ >> 2))) {
acc = 1;
ati_remote->acc_jiffies = jiffies;
}
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 3)) acc = accel[0];
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 2)) acc = accel[1];
else if ((jiffies - ati_remote->acc_jiffies) < (HZ >> 1)) acc = accel[2];
else if ((jiffies - ati_remote->acc_jiffies) < HZ ) acc = accel[3];
else if ((jiffies - ati_remote->acc_jiffies) < HZ+(HZ>>1)) acc = accel[4];
else if ((jiffies - ati_remote->acc_jiffies) < (HZ << 1)) acc = accel[5];
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 3))) acc = accel[0];
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 2))) acc = accel[1];
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 1))) acc = accel[2];
else if (time_before(jiffies, ati_remote->acc_jiffies + HZ)) acc = accel[3];
else if (time_before(jiffies, ati_remote->acc_jiffies + HZ+(HZ>>1))) acc = accel[4];
else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ << 1))) acc = accel[5];
else acc = accel[6];
input_regs(dev, regs);