Hi Greg,
Today's linux-next merge of the usb tree got a conflict in
drivers/usb/host/xhci-ring.c between commit 48df4a6fd8c4 ("xhci: Handle
zero-length isochronous packets") from the usb.current tree and commit
29cc88979a88 ("USB: use usb_endpoint_maxp() instead of le16_to_cpu()")
from the usb tree.
I fixed it up (see below) and can carry the fix as necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc drivers/usb/host/xhci-ring.c
index 54139a2,bf0b52c..0000000
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@@ -3249,11 -3237,9 +3249,11 @@@ static int xhci_queue_isoc_tx(struct xh
addr = start_addr + urb->iso_frame_desc[i].offset;
td_len = urb->iso_frame_desc[i].length;
td_remain_len = td_len;
- /* FIXME: Ignoring zero-length packets, can those happen? */
total_packet_count = roundup(td_len,
- le16_to_cpu(urb->ep->desc.wMaxPacketSize));
+ usb_endpoint_maxp(&urb->ep->desc));
+ /* A zero-length transfer still involves at least one packet. */
+ if (total_packet_count == 0)
+ total_packet_count++;
burst_count = xhci_get_burst_count(xhci, urb->dev, urb,
total_packet_count);
residue = xhci_get_last_burst_packet_count(xhci,
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