xhci: get isochronous ring directly from endpoint structure

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isochronous endpoints do not support streams, meaning that
there is only one ring per endpoint.

Avoid double-fetching the transfer event DMA to get the
ring. Also makes passing the event to skip_isoc_td() uncecessary.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210129130044.206855-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mathias Nyman 2021-01-29 15:00:19 +02:00 • committed by Greg Kroah-Hartman

parent ab58f3bb6a

commit d4dff8043e

1 changed files with 6 additions and 11 deletions

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17

drivers/usb/host/xhci-ring.c

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