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 a3aed8d87ddc8dfc66168588b1e3f719ba965b24..73c49362cd47c7d593e815d7bd3f9f194d899ff3 100644 (file)
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1010,7 +1010,7 @@ static int autosuspend_check(struct usb_device *udev)
                         * or for the past.
                         */
                        queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
-                                       suspend_time - jiffies);
+                               round_jiffies_relative(suspend_time - jiffies));
                        }
                return -EAGAIN;
        }