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From 255fb8869fe765f8ee9dbdad61ddfab333ff45ae Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Fri, 7 Jun 2019 14:50:12 +0100
Subject: [PATCH 655/725] Revert "usb: xhci: hack xhci_urb_enqueue to support
hid.mousepoll behaviour"
This reverts commit 1cf1071a79f320bc4497a3ade77431f04442eb17.
---
drivers/usb/host/xhci.c | 86 -----------------------------------------
1 file changed, 86 deletions(-)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1416,87 +1416,6 @@ command_cleanup:
}
/*
- * RPI: Fixup endpoint intervals when requested
- * - Check interval versus the (cached) endpoint context
- * - set the endpoint interval to the new value
- * - force an endpoint configure command
- */
-static void xhci_fixup_interval(struct xhci_hcd *xhci, struct urb *urb,
- unsigned int slot_id, unsigned int ep_index)
-{
- struct xhci_ep_ctx *ep_ctx_out, *ep_ctx_in;
- struct xhci_command *command;
- struct xhci_input_control_ctx *ctrl_ctx;
- struct xhci_virt_device *vdev;
- int xhci_interval, ep_interval;
- int ret;
- unsigned long flags;
- u32 ep_info_tmp;
-
- spin_lock_irqsave(&xhci->lock, flags);
-
- vdev = xhci->devs[slot_id];
- /* Get context-derived endpoint interval */
- ep_ctx_out = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index);
- ep_ctx_in = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index);
- xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx_out->ep_info));
- ep_interval = urb->interval * 8;
-
- if (ep_interval == xhci_interval) {
- spin_unlock_irqrestore(&xhci->lock, flags);
- return;
- }
-
- xhci_dbg(xhci, "Fixup interval ep_interval=%d xhci_interval=%d\n",
- ep_interval, xhci_interval);
- command = xhci_alloc_command_with_ctx(xhci, true, GFP_ATOMIC);
- if (!command) {
- /* Failure here is benign, poll at the original rate */
- spin_unlock_irqrestore(&xhci->lock, flags);
- return;
- }
-
- /* xHCI uses exponents for intervals... */
- xhci_interval = fls(ep_interval) - 1;
- xhci_interval = clamp_val(xhci_interval, 3, 10);
- ep_info_tmp = le32_to_cpu(ep_ctx_out->ep_info);
- ep_info_tmp &= ~EP_INTERVAL(255);
- ep_info_tmp |= EP_INTERVAL(xhci_interval);
-
- /* Keep the endpoint context up-to-date while issuing the command. */
- xhci_endpoint_copy(xhci, vdev->in_ctx,
- vdev->out_ctx, ep_index);
- ep_ctx_in->ep_info = cpu_to_le32(ep_info_tmp);
-
- /*
- * We need to drop the lock, so take an explicit copy
- * of the ep context.
- */
- xhci_endpoint_copy(xhci, command->in_ctx, vdev->in_ctx, ep_index);
-
- ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx);
- if (!ctrl_ctx) {
- xhci_warn(xhci,
- "%s: Could not get input context, bad type.\n",
- __func__);
- spin_unlock_irqrestore(&xhci->lock, flags);
- xhci_free_command(xhci, command);
- return;
- }
- ctrl_ctx->add_flags = xhci_get_endpoint_flag_from_index(ep_index);
- ctrl_ctx->drop_flags = 0;
-
- spin_unlock_irqrestore(&xhci->lock, flags);
-
- ret = xhci_configure_endpoint(xhci, urb->dev, command,
- false, false);
- if (ret)
- xhci_warn(xhci, "%s: Configure endpoint failed: %d\n",
- __func__, ret);
- xhci_free_command(xhci, command);
-}
-
-/*
* non-error returns are a promise to giveback() the urb later
* we drop ownership so next owner (or urb unlink) can get it
*/
@@ -1564,11 +1483,6 @@ static int xhci_urb_enqueue(struct usb_h
}
}
- if (usb_endpoint_xfer_int(&urb->ep->desc) &&
- (urb->dev->speed == USB_SPEED_FULL ||
- urb->dev->speed == USB_SPEED_LOW))
- xhci_fixup_interval(xhci, urb, slot_id, ep_index);
-
spin_lock_irqsave(&xhci->lock, flags);
if (xhci->xhc_state & XHCI_STATE_DYING) {
|
