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From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Fri, 24 Jan 2014 08:16:20 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r261112 - stable/9/sys/dev/usb/controller
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Author: hselasky
Date: Fri Jan 24 08:16:19 2014
New Revision: 261112
URL: http://svnweb.freebsd.org/changeset/base/261112

Log:
  MFC r258545:
  Comply to the XHCI specification. Certain input context fields should
  always be zero.

Modified:
  stable/9/sys/dev/usb/controller/xhci.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/dev/   (props changed)

Modified: stable/9/sys/dev/usb/controller/xhci.c
==============================================================================
--- stable/9/sys/dev/usb/controller/xhci.c	Fri Jan 24 08:15:21 2014	(r261111)
+++ stable/9/sys/dev/usb/controller/xhci.c	Fri Jan 24 08:16:19 2014	(r261112)
@@ -2544,7 +2544,11 @@ xhci_configure_device(struct usb_device 
 
 	xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx2, temp);
 
-	temp = XHCI_SCTX_3_DEV_ADDR_SET(udev->address) |
+	/*
+	 * These fields should be initialized to zero, according to
+	 * XHCI section 6.2.2 - slot context:
+	 */
+	temp = XHCI_SCTX_3_DEV_ADDR_SET(0) |
 	    XHCI_SCTX_3_SLOT_STATE_SET(0);
 
 	xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx3, temp);