USB: Make usb-autosuspend timer 1 sec jiffy aligned
Make usb autosuspend timers 1sec jiffy aligned.
This helps to reduce the frequency at which the CPU must be taken out of a
lower-power state.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index a3aed8d..73c4936 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1010,7 +1010,7 @@
* or for the past.
*/
queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
- suspend_time - jiffies);
+ round_jiffies_relative(suspend_time - jiffies));
}
return -EAGAIN;
}