diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-11-25 13:34:45 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@kvm.kroah.org> | 2008-11-30 22:24:02 -0800 |
| commit | 269f0532332410e97e3edeb78e6cd3bb940e52b4 (patch) | |
| tree | 092c775fe8108e899eb3fc0051c8483069b1430c /drivers/usb | |
| parent | d9d060a98ff89fe0f86e24c9c0c3d2f0c566781c (diff) | |
Revert "USB: improve ehci_watchdog's side effect in CPU power management"
This reverts commit f0d781d59cb621e1795d510039df973d0f8b23fc.
It was the wrong thing to do, and does not really do what it said
it did.
Cc: Yi Yang <yi.y.yang@intel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index b11798d17ae..c7d4b5a06bd 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -183,16 +183,14 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) * the async ring; just the I/O watchdog. Note that if a * SHRINK were pending, OFF would never be requested. */ - enum ehci_timer_action oldactions = ehci->actions; + if (timer_pending(&ehci->watchdog) + && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) + & ehci->actions)) + return; if (!test_and_set_bit (action, &ehci->actions)) { unsigned long t; - if (timer_pending(&ehci->watchdog) - && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) - & oldactions)) - return; - switch (action) { case TIMER_IO_WATCHDOG: t = EHCI_IO_JIFFIES; @@ -208,7 +206,7 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1; break; } - mod_timer(&ehci->watchdog, round_jiffies(t + jiffies)); + mod_timer(&ehci->watchdog, t + jiffies); } } |