xhci: Store the "real" root port number. (66381755) · Commits · 戴 / test

Since the xHCI driver now has split USB2/USB3 roothubs, devices under each roothub can have duplicate "fake" port numbers. For the next set of patches, we need to keep track of the "real" port number that the xHCI host uses to index into the port status arrays. Signed-off-by:

Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/xhci-mem.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -922,6 +922,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd xhci, struct usb_device ud
		top_dev = top_dev->parent)
		/* Found device below root hub */;
		dev->fake_port = top_dev->portnum;
		dev->real_port = port_num;
		xhci_dbg(xhci, "Set root hub portnum to %d\n", port_num);
		xhci_dbg(xhci, "Set fake root hub portnum to %d\n", dev->fake_port);

drivers/usb/host/xhci.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -799,6 +799,7 @@ struct xhci_virt_device {
		u32 cmd_status;
		struct list_head cmd_list;
		u8 fake_port;
		u8 real_port;
		};

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