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| author | Alan Stern <stern@rowland.harvard.edu> | 2012-07-11 15:22:53 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 23:56:47 (GMT) |
| commit | 32830f207691176234b4c4dd17f0d7ab6d87d94b (patch) | |
| tree | 4b352a92dfc720418288c541d87e93594f97f859 /drivers/usb/host/ehci-hub.c | |
| parent | 3c273a056bf46167f0a1309c2ba72282a17d2541 (diff) | |
| download | linux-32830f207691176234b4c4dd17f0d7ab6d87d94b.tar.xz | |
USB: EHCI: use hrtimer for unlinking empty async QHs
This patch (as1583) changes ehci-hcd to use an hrtimer event for
unlinking empty (unused) async QHs instead of using a kernel timer.
The check for empty QHs is moved to a new routine, where it doesn't
require going through an entire scan of both the async and periodic
schedules. And it can unlink multiple QHs at once, unlike the current
code.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index a382270..5d84562 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -300,6 +300,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) ehci->rh_state = EHCI_RH_SUSPENDED; end_unlink_async(ehci); + unlink_empty_async(ehci); ehci_handle_intr_unlinks(ehci); end_free_itds(ehci); |