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From: Zbigniew Bodek <zbb@FreeBSD.org>
Date: Fri, 27 Nov 2015 18:13:28 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r291399 - head/sys/boot/usb
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Author: zbb
Date: Fri Nov 27 18:13:28 2015
New Revision: 291399
URL: https://svnweb.freebsd.org/changeset/base/291399

Log:
  Use properly aligned buffer in usb_alloc
  
  The PA adress must be gathered from an aligned VA,
  not the RAW pointer to the memory space.
  
  Reviewed by:   hselasky
  Submitted by:  Wojciech Macek <wma@semihalf.com>
  Obtained from: Semihalf
  Sponsored by:  Juniper Networks Inc.
  Differential Revision: https://reviews.freebsd.org/D4140

Modified:
  head/sys/boot/usb/usb_busdma_loader.c

Modified: head/sys/boot/usb/usb_busdma_loader.c
==============================================================================
--- head/sys/boot/usb/usb_busdma_loader.c	Fri Nov 27 16:23:27 2015	(r291398)
+++ head/sys/boot/usb/usb_busdma_loader.c	Fri Nov 27 18:13:28 2015	(r291399)
@@ -233,7 +233,7 @@ usb_pc_alloc_mem(struct usb_page_cache *
 	pc->ismultiseg = (align == 1);
 
 	/* compute physical address */
- 	usb_pc_common_mem_cb(pc, ptr, size);
+ 	usb_pc_common_mem_cb(pc, pc->buffer, size);
 
 	usb_pc_cpu_flush(pc);
  	return (0);