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[Xen-devel] [PATCH][VTD] mask out upper bits in vendor id

To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
From: "Kay, Allen M" <allen.m.kay@xxxxxxxxx>
Date: Fri, 17 Jun 2011 10:16:53 -0700
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Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Jean Guyader <jean.guyader@xxxxxxxxxxxxx>
Delivery-date: Fri, 17 Jun 2011 10:17:41 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Thread-index: AcwtEloxgvkJLk2PRseiAj4wQjNp6g==
Thread-topic: [PATCH][VTD] mask out upper bits in vendor id

Making vendor_id u16 eliminates potential bogus upper bits that are not part of 
the actual 16-bit vendor ID.  On some systems, upper bits shows up with 0xffff.

Signed-off-by: Allen Kay <allen.m.kay@xxxxxxxxx>

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