From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Sun, 12 Apr 2015 01:07:46 +0000 (-0700)
Subject: Drivers: hv: util: introduce state machine for util drivers
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~94^2~73
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=636c88da6df3bb2f978b48d3a7ed55423da84d19;p=pandora-kernel.git

Drivers: hv: util: introduce state machine for util drivers

KVP/VSS/FCOPY drivers work in fully serialized mode: we wait till userspace
daemon registers, wait for a message from the host, send this message to the
daemon, get the reply, send it back to host, wait for another message.
Introduce enum hvutil_device_state to represend this state in all 3 drivers.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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