Merge tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
"The USB sub-maintainers woke up this past week and sent a bunch of
tiny fixes. Here are a lot of small patches that that resolve a bunch
of reported issues in the USB core, drivers, serial drivers, gadget
drivers, and of course, xhci :)

All of these have been in linux-next with no reported issues"

* tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (31 commits)
usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
usb: cdns3: gadget: Fix g_audio use case when connected to Super-Speed host
usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
USB: serial: whiteheat: fix line-speed endianness
USB: serial: whiteheat: fix potential slab corruption
USB: gadget: Reject endpoints with 0 maxpacket value
UAS: Revert commit 3ae62a42090f ("UAS: fix alignment of scatter/gather segments")
usb-storage: Revert commit 747668dbc061 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
usbip: Fix free of unallocated memory in vhci tx
usbip: tools: Fix read_usb_vudc_device() error path handling
usb: xhci: fix __le32/__le64 accessors in debugfs code
usb: xhci: fix Immediate Data Transfer endianness
xhci: Fix use-after-free regression in xhci clear hub TT implementation
USB: ldusb: fix control-message timeout
USB: ldusb: use unsigned size format specifiers
USB: ldusb: fix ring-buffer locking
USB: Skip endpoints with 0 maxpacket length
usb: cdns3: gadget: Don't manage pullups
usb: dwc3: remove the call trace of USBx_GFLADJ
usb: gadget: configfs: fix concurrent issue between composite APIs
...

drivers/usb/cdns3/gadget.c

···
 	writel(USB_CONF_CLK2OFFDS | USB_CONF_L1DS, &regs->usb_conf);
 
 	cdns3_configure_dmult(priv_dev, NULL);
-
-	cdns3_gadget_pullup(&priv_dev->gadget, 1);
 }
 
 /**
···
 {
 	struct cdns3_device *priv_dev = gadget_to_cdns3_device(gadget);
 	unsigned long flags;
+	enum usb_device_speed max_speed = driver->max_speed;
 
 	spin_lock_irqsave(&priv_dev->lock, flags);
 	priv_dev->gadget_driver = driver;
+
+	/* limit speed if necessary */
+	max_speed = min(driver->max_speed, gadget->max_speed);
+
+	switch (max_speed) {
+	case USB_SPEED_FULL:
+		writel(USB_CONF_SFORCE_FS, &priv_dev->regs->usb_conf);
+		writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);
+		break;
+	case USB_SPEED_HIGH:
+		writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);
+		break;
+	case USB_SPEED_SUPER:
+		break;
+	default:
+		dev_err(priv_dev->dev,
+			"invalid maximum_speed parameter %d\n",
+			max_speed);
+		/* fall through */
+	case USB_SPEED_UNKNOWN:
+		/* default to superspeed */
+		max_speed = USB_SPEED_SUPER;
+		break;
+	}
+
 	cdns3_gadget_config(priv_dev);
 	spin_unlock_irqrestore(&priv_dev->lock, flags);
 	return 0;
···
 		writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
 		readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val,
 					  !(val & EP_CMD_EPRST), 1, 100);
+
+		priv_ep->flags &= ~EP_CLAIMED;
 	}
 
 	/* disable interrupt for device */
···
 	/* Check the maximum_speed parameter */
 	switch (max_speed) {
 	case USB_SPEED_FULL:
-		writel(USB_CONF_SFORCE_FS, &priv_dev->regs->usb_conf);
-		writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);
-		break;
 	case USB_SPEED_HIGH:
-		writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf);
-		break;
 	case USB_SPEED_SUPER:
 		break;
 	default:
···
 
 	/* disable interrupt for device */
 	writel(0, &priv_dev->regs->usb_ien);
-
-	cdns3_gadget_pullup(&priv_dev->gadget, 0);
 
 	return 0;
 }

drivers/usb/cdns3/host-export.h

···
 #ifdef CONFIG_USB_CDNS3_HOST
 
 int cdns3_host_init(struct cdns3 *cdns);
-void cdns3_host_exit(struct cdns3 *cdns);
 
 #else
 

drivers/usb/cdns3/host.c

···
 #include <linux/platform_device.h>
 #include "core.h"
 #include "drd.h"
+#include "host-export.h"
 
 static int __cdns3_host_init(struct cdns3 *cdns)
 {

drivers/usb/core/config.c

···
 
 	/* Validate the wMaxPacketSize field */
 	maxp = usb_endpoint_maxp(&endpoint->desc);
+	if (maxp == 0) {
+		dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has wMaxPacketSize 0, skipping\n",
+		    cfgno, inum, asnum, d->bEndpointAddress);
+		goto skip_to_next_endpoint_or_interface_descriptor;
+	}
 
 	/* Find the highest legal maxpacket size for this endpoint */
 	i = 0;		/* additional transactions per microframe */

drivers/usb/dwc3/Kconfig

···
        depends on ARCH_MESON || COMPILE_TEST
        default USB_DWC3
        select USB_ROLE_SWITCH
+	select REGMAP_MMIO
        help
          Support USB2/3 functionality in Amlogic G12A platforms.
 	 Say 'Y' or 'M' if you have one such device.

drivers/usb/dwc3/core.c

···
 
 	reg = dwc3_readl(dwc->regs, DWC3_GFLADJ);
 	dft = reg & DWC3_GFLADJ_30MHZ_MASK;
-	if (!dev_WARN_ONCE(dwc->dev, dft == dwc->fladj,
-	    "request value same as default, ignoring\n")) {
+	if (dft != dwc->fladj) {
 		reg &= ~DWC3_GFLADJ_30MHZ_MASK;
 		reg |= DWC3_GFLADJ_30MHZ_SDBND_SEL | dwc->fladj;
 		dwc3_writel(dwc->regs, DWC3_GFLADJ, reg);

drivers/usb/dwc3/dwc3-pci.c

···
 
 	ret = platform_device_add_properties(dwc->dwc3, p);
 	if (ret < 0)
-		return ret;
+		goto err;
 
 	ret = dwc3_pci_quirks(dwc);
 	if (ret)

drivers/usb/dwc3/gadget.c

···
 
 		dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
 	}
+
+	while (!list_empty(&dep->cancelled_list)) {
+		req = next_request(&dep->cancelled_list);
+
+		dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
+	}
 }
 
 /**

drivers/usb/gadget/composite.c

···
 			usb_ep_dequeue(cdev->gadget->ep0, cdev->os_desc_req);
 
 		kfree(cdev->os_desc_req->buf);
+		cdev->os_desc_req->buf = NULL;
 		usb_ep_free_request(cdev->gadget->ep0, cdev->os_desc_req);
+		cdev->os_desc_req = NULL;
 	}
 	if (cdev->req) {
 		if (cdev->setup_pending)
 			usb_ep_dequeue(cdev->gadget->ep0, cdev->req);
 
 		kfree(cdev->req->buf);
+		cdev->req->buf = NULL;
 		usb_ep_free_request(cdev->gadget->ep0, cdev->req);
+		cdev->req = NULL;
 	}
 	cdev->next_string_id = 0;
 	device_remove_file(&cdev->gadget->dev, &dev_attr_suspended);

drivers/usb/gadget/configfs.c

···
 	bool use_os_desc;
 	char b_vendor_code;
 	char qw_sign[OS_STRING_QW_SIGN_LEN];
+	spinlock_t spinlock;
+	bool unbind;
 };
 
 static inline struct gadget_info *to_gadget_info(struct config_item *item)
···
 	int				ret;
 
 	/* the gi->lock is hold by the caller */
+	gi->unbind = 0;
 	cdev->gadget = gadget;
 	set_gadget_data(gadget, cdev);
 	ret = composite_dev_prepare(composite, cdev);
···
 {
 	struct usb_composite_dev	*cdev;
 	struct gadget_info		*gi;
+	unsigned long flags;
 
 	/* the gi->lock is hold by the caller */
 
 	cdev = get_gadget_data(gadget);
 	gi = container_of(cdev, struct gadget_info, cdev);
+	spin_lock_irqsave(&gi->spinlock, flags);
+	gi->unbind = 1;
+	spin_unlock_irqrestore(&gi->spinlock, flags);
 
 	kfree(otg_desc[0]);
 	otg_desc[0] = NULL;
 	purge_configs_funcs(gi);
 	composite_dev_cleanup(cdev);
 	usb_ep_autoconfig_reset(cdev->gadget);
+	spin_lock_irqsave(&gi->spinlock, flags);
 	cdev->gadget = NULL;
 	set_gadget_data(gadget, NULL);
+	spin_unlock_irqrestore(&gi->spinlock, flags);
+}
+
+static int configfs_composite_setup(struct usb_gadget *gadget,
+		const struct usb_ctrlrequest *ctrl)
+{
+	struct usb_composite_dev *cdev;
+	struct gadget_info *gi;
+	unsigned long flags;
+	int ret;
+
+	cdev = get_gadget_data(gadget);
+	if (!cdev)
+		return 0;
+
+	gi = container_of(cdev, struct gadget_info, cdev);
+	spin_lock_irqsave(&gi->spinlock, flags);
+	cdev = get_gadget_data(gadget);
+	if (!cdev || gi->unbind) {
+		spin_unlock_irqrestore(&gi->spinlock, flags);
+		return 0;
+	}
+
+	ret = composite_setup(gadget, ctrl);
+	spin_unlock_irqrestore(&gi->spinlock, flags);
+	return ret;
+}
+
+static void configfs_composite_disconnect(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev *cdev;
+	struct gadget_info *gi;
+	unsigned long flags;
+
+	cdev = get_gadget_data(gadget);
+	if (!cdev)
+		return;
+
+	gi = container_of(cdev, struct gadget_info, cdev);
+	spin_lock_irqsave(&gi->spinlock, flags);
+	cdev = get_gadget_data(gadget);
+	if (!cdev || gi->unbind) {
+		spin_unlock_irqrestore(&gi->spinlock, flags);
+		return;
+	}
+
+	composite_disconnect(gadget);
+	spin_unlock_irqrestore(&gi->spinlock, flags);
+}
+
+static void configfs_composite_suspend(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev *cdev;
+	struct gadget_info *gi;
+	unsigned long flags;
+
+	cdev = get_gadget_data(gadget);
+	if (!cdev)
+		return;
+
+	gi = container_of(cdev, struct gadget_info, cdev);
+	spin_lock_irqsave(&gi->spinlock, flags);
+	cdev = get_gadget_data(gadget);
+	if (!cdev || gi->unbind) {
+		spin_unlock_irqrestore(&gi->spinlock, flags);
+		return;
+	}
+
+	composite_suspend(gadget);
+	spin_unlock_irqrestore(&gi->spinlock, flags);
+}
+
+static void configfs_composite_resume(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev *cdev;
+	struct gadget_info *gi;
+	unsigned long flags;
+
+	cdev = get_gadget_data(gadget);
+	if (!cdev)
+		return;
+
+	gi = container_of(cdev, struct gadget_info, cdev);
+	spin_lock_irqsave(&gi->spinlock, flags);
+	cdev = get_gadget_data(gadget);
+	if (!cdev || gi->unbind) {
+		spin_unlock_irqrestore(&gi->spinlock, flags);
+		return;
+	}
+
+	composite_resume(gadget);
+	spin_unlock_irqrestore(&gi->spinlock, flags);
 }
 
 static const struct usb_gadget_driver configfs_driver_template = {
 	.bind           = configfs_composite_bind,
 	.unbind         = configfs_composite_unbind,
 
-	.setup          = composite_setup,
-	.reset          = composite_disconnect,
-	.disconnect     = composite_disconnect,
+	.setup          = configfs_composite_setup,
+	.reset          = configfs_composite_disconnect,
+	.disconnect     = configfs_composite_disconnect,
 
-	.suspend	= composite_suspend,
-	.resume		= composite_resume,
+	.suspend	= configfs_composite_suspend,
+	.resume		= configfs_composite_resume,
 
 	.max_speed	= USB_SPEED_SUPER,
 	.driver = {

drivers/usb/gadget/udc/atmel_usba_udc.c

···
 		next_fifo_transaction(ep, req);
 		if (req->last_transaction) {
 			usba_ep_writel(ep, CTL_DIS, USBA_TX_PK_RDY);
-			usba_ep_writel(ep, CTL_ENB, USBA_TX_COMPLETE);
+			if (ep_is_control(ep))
+				usba_ep_writel(ep, CTL_ENB, USBA_TX_COMPLETE);
 		} else {
-			usba_ep_writel(ep, CTL_DIS, USBA_TX_COMPLETE);
+			if (ep_is_control(ep))
+				usba_ep_writel(ep, CTL_DIS, USBA_TX_COMPLETE);
 			usba_ep_writel(ep, CTL_ENB, USBA_TX_PK_RDY);
 		}
 	}

drivers/usb/gadget/udc/core.c

···
 	if (ep->enabled)
 		goto out;
 
+	/* UDC drivers can't handle endpoints with maxpacket size 0 */
+	if (usb_endpoint_maxp(ep->desc) == 0) {
+		/*
+		 * We should log an error message here, but we can't call
+		 * dev_err() because there's no way to find the gadget
+		 * given only ep.
+		 */
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = ep->ops->enable(ep, ep->desc);
 	if (ret)
 		goto out;

drivers/usb/gadget/udc/fsl_udc_core.c

···
 	dma_pool_destroy(udc_controller->td_pool);
 	free_irq(udc_controller->irq, udc_controller);
 	iounmap(dr_regs);
-	if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
+	if (res && (pdata->operating_mode == FSL_USB2_DR_DEVICE))
 		release_mem_region(res->start, resource_size(res));
 
 	/* free udc --wait for the release() finished */

drivers/usb/gadget/udc/renesas_usb3.c

···
 static bool usb3_std_req_set_address(struct renesas_usb3 *usb3,
 				     struct usb_ctrlrequest *ctrl)
 {
-	if (ctrl->wValue >= 128)
+	if (le16_to_cpu(ctrl->wValue) >= 128)
 		return true;	/* stall */
 
-	usb3_set_device_address(usb3, ctrl->wValue);
+	usb3_set_device_address(usb3, le16_to_cpu(ctrl->wValue));
 	usb3_set_p0_con_for_no_data(usb3);
 
 	return false;
···
 	struct renesas_usb3_ep *usb3_ep;
 	int num;
 	u16 status = 0;
+	__le16 tx_data;
 
 	switch (ctrl->bRequestType & USB_RECIP_MASK) {
 	case USB_RECIP_DEVICE:
···
 	}
 
 	if (!stall) {
-		status = cpu_to_le16(status);
+		tx_data = cpu_to_le16(status);
 		dev_dbg(usb3_to_dev(usb3), "get_status: req = %p\n",
 			usb_req_to_usb3_req(usb3->ep0_req));
-		usb3_pipe0_internal_xfer(usb3, &status, sizeof(status),
+		usb3_pipe0_internal_xfer(usb3, &tx_data, sizeof(tx_data),
 					 usb3_pipe0_get_status_completion);
 	}
 
···
 static bool usb3_std_req_set_configuration(struct renesas_usb3 *usb3,
 					   struct usb_ctrlrequest *ctrl)
 {
-	if (ctrl->wValue > 0)
+	if (le16_to_cpu(ctrl->wValue) > 0)
 		usb3_set_bit(usb3, USB_COM_CON_CONF, USB3_USB_COM_CON);
 	else
 		usb3_clear_bit(usb3, USB_COM_CON_CONF, USB3_USB_COM_CON);

drivers/usb/host/xhci-debugfs.c

···
 		trb = &seg->trbs[i];
 		dma = seg->dma + i * sizeof(*trb);
 		seq_printf(s, "%pad: %s\n", &dma,
-			   xhci_decode_trb(trb->generic.field[0],
-					   trb->generic.field[1],
-					   trb->generic.field[2],
-					   trb->generic.field[3]));
+			   xhci_decode_trb(le32_to_cpu(trb->generic.field[0]),
+					   le32_to_cpu(trb->generic.field[1]),
+					   le32_to_cpu(trb->generic.field[2]),
+					   le32_to_cpu(trb->generic.field[3])));
 	}
 }
 
···
 	xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus));
 	slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx);
 	seq_printf(s, "%pad: %s\n", &dev->out_ctx->dma,
-		   xhci_decode_slot_context(slot_ctx->dev_info,
-					    slot_ctx->dev_info2,
-					    slot_ctx->tt_info,
-					    slot_ctx->dev_state));
+		   xhci_decode_slot_context(le32_to_cpu(slot_ctx->dev_info),
+					    le32_to_cpu(slot_ctx->dev_info2),
+					    le32_to_cpu(slot_ctx->tt_info),
+					    le32_to_cpu(slot_ctx->dev_state)));
 
 	return 0;
 }
···
 		ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, dci);
 		dma = dev->out_ctx->dma + dci * CTX_SIZE(xhci->hcc_params);
 		seq_printf(s, "%pad: %s\n", &dma,
-			   xhci_decode_ep_context(ep_ctx->ep_info,
-						  ep_ctx->ep_info2,
-						  ep_ctx->deq,
-						  ep_ctx->tx_info));
+			   xhci_decode_ep_context(le32_to_cpu(ep_ctx->ep_info),
+						  le32_to_cpu(ep_ctx->ep_info2),
+						  le64_to_cpu(ep_ctx->deq),
+						  le32_to_cpu(ep_ctx->tx_info)));
 	}
 
 	return 0;

drivers/usb/host/xhci-ring.c

···
 			if (xhci_urb_suitable_for_idt(urb)) {
 				memcpy(&send_addr, urb->transfer_buffer,
 				       trb_buff_len);
+				le64_to_cpus(&send_addr);
 				field |= TRB_IDT;
 			}
 		}
···
 		if (xhci_urb_suitable_for_idt(urb)) {
 			memcpy(&addr, urb->transfer_buffer,
 			       urb->transfer_buffer_length);
+			le64_to_cpus(&addr);
 			field |= TRB_IDT;
 		} else {
 			addr = (u64) urb->transfer_dma;

drivers/usb/host/xhci.c

···
 	}
 }
 
+static void xhci_endpoint_disable(struct usb_hcd *hcd,
+				  struct usb_host_endpoint *host_ep)
+{
+	struct xhci_hcd		*xhci;
+	struct xhci_virt_device	*vdev;
+	struct xhci_virt_ep	*ep;
+	struct usb_device	*udev;
+	unsigned long		flags;
+	unsigned int		ep_index;
+
+	xhci = hcd_to_xhci(hcd);
+rescan:
+	spin_lock_irqsave(&xhci->lock, flags);
+
+	udev = (struct usb_device *)host_ep->hcpriv;
+	if (!udev || !udev->slot_id)
+		goto done;
+
+	vdev = xhci->devs[udev->slot_id];
+	if (!vdev)
+		goto done;
+
+	ep_index = xhci_get_endpoint_index(&host_ep->desc);
+	ep = &vdev->eps[ep_index];
+	if (!ep)
+		goto done;
+
+	/* wait for hub_tt_work to finish clearing hub TT */
+	if (ep->ep_state & EP_CLEARING_TT) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		schedule_timeout_uninterruptible(1);
+		goto rescan;
+	}
+
+	if (ep->ep_state)
+		xhci_dbg(xhci, "endpoint disable with ep_state 0x%x\n",
+			 ep->ep_state);
+done:
+	host_ep->hcpriv = NULL;
+	spin_unlock_irqrestore(&xhci->lock, flags);
+}
+
 /*
  * Called after usb core issues a clear halt control message.
  * The host side of the halt should already be cleared by a reset endpoint
···
 	unsigned int ep_index;
 	unsigned long flags;
 
-	/*
-	 * udev might be NULL if tt buffer is cleared during a failed device
-	 * enumeration due to a halted control endpoint. Usb core might
-	 * have allocated a new udev for the next enumeration attempt.
-	 */
-
 	xhci = hcd_to_xhci(hcd);
+
+	spin_lock_irqsave(&xhci->lock, flags);
 	udev = (struct usb_device *)ep->hcpriv;
-	if (!udev)
-		return;
 	slot_id = udev->slot_id;
 	ep_index = xhci_get_endpoint_index(&ep->desc);
 
-	spin_lock_irqsave(&xhci->lock, flags);
 	xhci->devs[slot_id]->eps[ep_index].ep_state &= ~EP_CLEARING_TT;
 	xhci_ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
 	spin_unlock_irqrestore(&xhci->lock, flags);
···
 	.free_streams =		xhci_free_streams,
 	.add_endpoint =		xhci_add_endpoint,
 	.drop_endpoint =	xhci_drop_endpoint,
+	.endpoint_disable =	xhci_endpoint_disable,
 	.endpoint_reset =	xhci_endpoint_reset,
 	.check_bandwidth =	xhci_check_bandwidth,
 	.reset_bandwidth =	xhci_reset_bandwidth,

drivers/usb/misc/ldusb.c

···
 	}
 	bytes_to_read = min(count, *actual_buffer);
 	if (bytes_to_read < *actual_buffer)
-		dev_warn(&dev->intf->dev, "Read buffer overflow, %zd bytes dropped\n",
+		dev_warn(&dev->intf->dev, "Read buffer overflow, %zu bytes dropped\n",
 			 *actual_buffer-bytes_to_read);
 
 	/* copy one interrupt_in_buffer from ring_buffer into userspace */
···
 		retval = -EFAULT;
 		goto unlock_exit;
 	}
-	dev->ring_tail = (dev->ring_tail+1) % ring_buffer_size;
-
 	retval = bytes_to_read;
 
 	spin_lock_irq(&dev->rbsl);
+	dev->ring_tail = (dev->ring_tail + 1) % ring_buffer_size;
+
 	if (dev->buffer_overflow) {
 		dev->buffer_overflow = 0;
 		spin_unlock_irq(&dev->rbsl);
···
 	/* write the data into interrupt_out_buffer from userspace */
 	bytes_to_write = min(count, write_buffer_size*dev->interrupt_out_endpoint_size);
 	if (bytes_to_write < count)
-		dev_warn(&dev->intf->dev, "Write buffer overflow, %zd bytes dropped\n", count-bytes_to_write);
-	dev_dbg(&dev->intf->dev, "%s: count = %zd, bytes_to_write = %zd\n",
+		dev_warn(&dev->intf->dev, "Write buffer overflow, %zu bytes dropped\n",
+			count - bytes_to_write);
+	dev_dbg(&dev->intf->dev, "%s: count = %zu, bytes_to_write = %zu\n",
 		__func__, count, bytes_to_write);
 
 	if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write)) {
···
 					 1 << 8, 0,
 					 dev->interrupt_out_buffer,
 					 bytes_to_write,
-					 USB_CTRL_SET_TIMEOUT * HZ);
+					 USB_CTRL_SET_TIMEOUT);
 		if (retval < 0)
 			dev_err(&dev->intf->dev,
 				"Couldn't submit HID_REQ_SET_REPORT %d\n",

drivers/usb/mtu3/mtu3_core.c

···
 #include <linux/platform_device.h>
 
 #include "mtu3.h"
+#include "mtu3_dr.h"
 #include "mtu3_debug.h"
 #include "mtu3_trace.h"
 

drivers/usb/renesas_usbhs/common.c

···
 	req->bRequest		= (val >> 8) & 0xFF;
 	req->bRequestType	= (val >> 0) & 0xFF;
 
-	req->wValue	= usbhs_read(priv, USBVAL);
-	req->wIndex	= usbhs_read(priv, USBINDX);
-	req->wLength	= usbhs_read(priv, USBLENG);
+	req->wValue	= cpu_to_le16(usbhs_read(priv, USBVAL));
+	req->wIndex	= cpu_to_le16(usbhs_read(priv, USBINDX));
+	req->wLength	= cpu_to_le16(usbhs_read(priv, USBLENG));
 }
 
 void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
 {
 	usbhs_write(priv, USBREQ,  (req->bRequest << 8) | req->bRequestType);
-	usbhs_write(priv, USBVAL,  req->wValue);
-	usbhs_write(priv, USBINDX, req->wIndex);
-	usbhs_write(priv, USBLENG, req->wLength);
+	usbhs_write(priv, USBVAL,  le16_to_cpu(req->wValue));
+	usbhs_write(priv, USBINDX, le16_to_cpu(req->wIndex));
+	usbhs_write(priv, USBLENG, le16_to_cpu(req->wLength));
 
 	usbhs_bset(priv, DCPCTR, SUREQ, SUREQ);
 }

drivers/usb/renesas_usbhs/mod_gadget.c

···
 	case USB_DEVICE_TEST_MODE:
 		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
 		udelay(100);
-		usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8));
+		usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex) >> 8);
 		break;
 	default:
 		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
···
 	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
 	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
 	struct usb_request *req;
-	unsigned short *buf;
+	__le16 *buf;
 
 	/* alloc new usb_request for recip */
 	req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC);

drivers/usb/serial/whiteheat.c

···
 
 	command_port = port->serial->port[COMMAND_PORT];
 	command_info = usb_get_serial_port_data(command_port);
+
+	if (command_port->bulk_out_size < datasize + 1)
+		return -EIO;
+
 	mutex_lock(&command_info->mutex);
 	command_info->command_finished = false;
 
···
 	struct device *dev = &port->dev;
 	struct whiteheat_port_settings port_settings;
 	unsigned int cflag = tty->termios.c_cflag;
+	speed_t baud;
 
 	port_settings.port = port->port_number + 1;
 
···
 	dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff);
 
 	/* get the baud rate wanted */
-	port_settings.baud = tty_get_baud_rate(tty);
-	dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud);
+	baud = tty_get_baud_rate(tty);
+	port_settings.baud = cpu_to_le32(baud);
+	dev_dbg(dev, "%s - baud rate = %u\n", __func__, baud);
 
 	/* fixme: should set validated settings */
-	tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
+	tty_encode_baud_rate(tty, baud, baud);
+
 	/* handle any settings that aren't specified in the tty structure */
 	port_settings.lloop = 0;
 

drivers/usb/serial/whiteheat.h

···
 
 struct whiteheat_port_settings {
 	__u8	port;		/* port number (1 to N) */
-	__u32	baud;		/* any value 7 - 460800, firmware calculates
+	__le32	baud;		/* any value 7 - 460800, firmware calculates
 				   best fit; arrives little endian */
 	__u8	bits;		/* 5, 6, 7, or 8 */
 	__u8	stop;		/* 1 or 2, default 1 (2 = 1.5 if bits = 5) */

drivers/usb/storage/scsiglue.c

···
 static int slave_alloc (struct scsi_device *sdev)
 {
 	struct us_data *us = host_to_us(sdev->host);
-	int maxp;
 
 	/*
 	 * Set the INQUIRY transfer length to 36.  We don't use any of
···
 	 * less than 36 bytes.
 	 */
 	sdev->inquiry_len = 36;
-
-	/*
-	 * USB has unusual scatter-gather requirements: the length of each
-	 * scatterlist element except the last must be divisible by the
-	 * Bulk maxpacket value.  Fortunately this value is always a
-	 * power of 2.  Inform the block layer about this requirement.
-	 */
-	maxp = usb_maxpacket(us->pusb_dev, us->recv_bulk_pipe, 0);
-	blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
 
 	/*
 	 * Some host controllers may have alignment requirements.

drivers/usb/storage/uas.c

···
 {
 	struct uas_dev_info *devinfo =
 		(struct uas_dev_info *)sdev->host->hostdata;
-	int maxp;
 
 	sdev->hostdata = devinfo;
-
-	/*
-	 * We have two requirements here. We must satisfy the requirements
-	 * of the physical HC and the demands of the protocol, as we
-	 * definitely want no additional memory allocation in this path
-	 * ruling out using bounce buffers.
-	 *
-	 * For a transmission on USB to continue we must never send
-	 * a package that is smaller than maxpacket. Hence the length of each
-         * scatterlist element except the last must be divisible by the
-         * Bulk maxpacket value.
-	 * If the HC does not ensure that through SG,
-	 * the upper layer must do that. We must assume nothing
-	 * about the capabilities off the HC, so we use the most
-	 * pessimistic requirement.
-	 */
-
-	maxp = usb_maxpacket(devinfo->udev, devinfo->data_in_pipe, 0);
-	blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
 
 	/*
 	 * The protocol has no requirements on alignment in the strict sense.

drivers/usb/usbip/vhci_tx.c

···
 		}
 
 		kfree(iov);
+		/* This is only for isochronous case */
 		kfree(iso_buffer);
+		iso_buffer = NULL;
+
 		usbip_dbg_vhci_tx("send txdata\n");
 
 		total_size += txsize;

tools/usb/usbip/libsrc/usbip_device_driver.c

···
 	FILE *fd = NULL;
 	struct udev_device *plat;
 	const char *speed;
-	int ret = 0;
+	size_t ret;
 
 	plat = udev_device_get_parent(sdev);
 	path = udev_device_get_syspath(plat);
···
 	if (!fd)
 		return -1;
 	ret = fread((char *) &descr, sizeof(descr), 1, fd);
-	if (ret < 0)
+	if (ret != 1) {
+		err("Cannot read vudc device descr file: %s", strerror(errno));
 		goto err;
+	}
 	fclose(fd);
 
 	copy_descr_attr(dev, &descr, bDeviceClass);