Merge tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It
  was another normal development cycle, with lots of the usual drivers
  getting updates:

   - Thunderbolt driver cleanups and additions

   - dwc3 driver updates

   - dwc2 driver updates

   - typec driver updates

   - xhci driver updates and additions

   - offload USB engine updates for better power management

   - unused tracepoint removals

   - usb gadget fixes and updates as more users start to rely on these
     drivers instead of the "old" function gadget drivers

   - new USB device ids

   - other minor driver USB driver updates

   - new USB I/O driver framework and driver additions"

  The last item, the usb i/o driver, has an i2c and gpio driver added
  through this tree. Those drivers were acked by the respective
  subsystem maintainers.

  All of these have been in linux-next for a while"

* tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits)
  usb: vhci-hcd: Prevent suspending virtually attached devices
  USB: serial: option: add SIMCom 8230C compositions
  thunderbolt: Fix use-after-free in tb_dp_dprx_work
  usb: xhci: align PORTSC trace with one-based port numbering
  usb: xhci: correct indentation for PORTSC tracing function
  usb: xhci: improve TR Dequeue Pointer mask
  usb: xhci-pci: add support for hosts with zero USB3 ports
  usb: xhci: Update a comment about Stop Endpoint retries
  Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running"
  usb: gadget: f_rndis: Refactor bind path to use __free()
  usb: gadget: f_ecm: Refactor bind path to use __free()
  usb: gadget: f_acm: Refactor bind path to use __free()
  usb: gadget: f_ncm: Refactor bind path to use __free()
  usb: gadget: Introduce free_usb_request helper
  usb: gadget: Store endpoint pointer in usb_request
  usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support
  usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv
  usb: host: xhci-rcar: Move R-Car reg definitions
  dt-bindings: usb: Document Renesas RZ/G3E USB3HOST
  usb: gadget: f_fs: Fix epfile null pointer access after ep enable.
  ...

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 7a76d5a62db1..ff8df16cca35 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -372,6 +372,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 	struct usb_host_endpoint	*ep;
 	int				is_out;
 	unsigned int			allowed;
+	bool				is_eusb2_isoch_double;
 
 	if (!urb || !urb->complete)
 		return -EINVAL;
@@ -434,7 +435,8 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 		return -ENODEV;
 
 	max = usb_endpoint_maxp(&ep->desc);
-	if (max <= 0) {
+	is_eusb2_isoch_double = usb_endpoint_is_hs_isoc_double(dev, ep);
+	if (!max && !is_eusb2_isoch_double) {
 		dev_dbg(&dev->dev,
 			"bogus endpoint ep%d%s in %s (bad maxpacket %d)\n",
 			usb_endpoint_num(&ep->desc), is_out ? "out" : "in",
@@ -467,9 +469,13 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			max = le32_to_cpu(isoc_ep_comp->dwBytesPerInterval);
 		}
 
-		/* "high bandwidth" mode, 1-3 packets/uframe? */
-		if (dev->speed == USB_SPEED_HIGH)
-			max *= usb_endpoint_maxp_mult(&ep->desc);
+		/* High speed, 1-3 packets/uframe, max 6 for eUSB2 double bw */
+		if (dev->speed == USB_SPEED_HIGH) {
+			if (is_eusb2_isoch_double)
+				max = le32_to_cpu(ep->eusb2_isoc_ep_comp.dwBytesPerInterval);
+			else
+				max *= usb_endpoint_maxp_mult(&ep->desc);
+		}
 
 		if (urb->number_of_packets <= 0)
 			return -EINVAL;