diff options
author | Alan Stern <stern@rowland.harvard.edu> | 2010-07-14 15:03:57 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 21:35:40 (GMT) |
commit | 88d8aa462b8a2128a75b96a0134b22f724ca45d1 (patch) | |
tree | 006b2e2d90cd303a8f2ae53debb9c5cfcd99ba84 /drivers | |
parent | 1fb2e0558781b07d2ecaabf94c81c17ac820d8f0 (diff) | |
download | linux-fsl-qoriq-88d8aa462b8a2128a75b96a0134b22f724ca45d1.tar.xz |
USB: EHCI: remove dead code in the periodic scheduler
This patch (as1409) removes some dead code from the ehci-hcd
scheduler. Thanks to the previous patch in this series, stream->depth
is no longer used. And stream->start and stream->rescheduled
apparently have not been used for quite a while, except in some
statistics-reporting code that never gets invoked.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/host/ehci-sched.c | 15 | ||||
-rw-r--r-- | drivers/usb/host/ehci.h | 3 |
2 files changed, 0 insertions, 18 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 3381319..a92526d 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1074,15 +1074,6 @@ iso_stream_put(struct ehci_hcd *ehci, struct ehci_iso_stream *stream) if (stream->ep) stream->ep->hcpriv = NULL; - if (stream->rescheduled) { - ehci_info (ehci, "ep%d%s-iso rescheduled " - "%lu times in %lu seconds\n", - stream->bEndpointAddress, is_in ? "in" : "out", - stream->rescheduled, - ((jiffies - stream->start)/HZ) - ); - } - kfree(stream); } } @@ -1617,7 +1608,6 @@ itd_link_urb ( (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", urb->interval, next_uframe >> 3, next_uframe & 0x7); - stream->start = jiffies; } ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++; @@ -1643,7 +1633,6 @@ itd_link_urb ( itd_patch(ehci, itd, iso_sched, packet, uframe); next_uframe += stream->interval; - stream->depth += stream->interval; next_uframe &= mod - 1; packet++; @@ -1699,7 +1688,6 @@ itd_complete ( t = hc32_to_cpup(ehci, &itd->hw_transaction [uframe]); itd->hw_transaction [uframe] = 0; - stream->depth -= stream->interval; /* report transfer status */ if (unlikely (t & ISO_ERRS)) { @@ -2029,7 +2017,6 @@ sitd_link_urb ( (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", (next_uframe >> 3) & (ehci->periodic_size - 1), stream->interval, hc32_to_cpu(ehci, stream->splits)); - stream->start = jiffies; } ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++; @@ -2054,7 +2041,6 @@ sitd_link_urb ( sitd); next_uframe += stream->interval << 3; - stream->depth += stream->interval << 3; } stream->next_uframe = next_uframe & (mod - 1); @@ -2114,7 +2100,6 @@ sitd_complete ( desc->actual_length = desc->length - SITD_LENGTH(t); urb->actual_length += desc->actual_length; } - stream->depth -= stream->interval << 3; /* handle completion now? */ if ((urb_index + 1) != urb->number_of_packets) diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 2c050ef..e5b9ece 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -404,15 +404,12 @@ struct ehci_iso_stream { u32 refcount; u8 bEndpointAddress; u8 highspeed; - u16 depth; /* depth in uframes */ struct list_head td_list; /* queued itds/sitds */ struct list_head free_list; /* list of unused itds/sitds */ struct usb_device *udev; struct usb_host_endpoint *ep; /* output of (re)scheduling */ - unsigned long start; /* jiffies */ - unsigned long rescheduled; int next_uframe; __hc32 splits; |