From: K. Y. Srinivasan <kys@microsoft.com>
Date: Sat, 1 Aug 2015 23:08:14 +0000 (-0700)
Subject: Drivers: hv: vmbus: Permit sending of packets without payload
X-Git-Tag: omap-for-v4.3/fixes-merge-window~46^2~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b81658cf5d44e07c70c93e3b2aefe848eaaba99f;p=pandora-kernel.git

Drivers: hv: vmbus: Permit sending of packets without payload

The guest may have to send a completion packet back to the host.
To support this usage, permit sending a packet without a payload -
we would be only sending the descriptor in this case.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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