From 3f300ff41d89fe9674b8dbab950ba2572639ee8d Mon Sep 17 00:00:00 2001
From: Simon Xiao <sixiao@microsoft.com>
Date: Tue, 28 Apr 2015 01:05:17 -0700
Subject: [PATCH] hv_netvsc: introduce netif-msg into netvsc module

1. Introduce netif-msg to netvsc to control debug logging output
and keep msg_enable in netvsc_device_context so that it is
kept persistently.
2. Only call dump_rndis_message() when NETIF_MSG_RX_ERR or above
is specified in netvsc module debug param.
In non-debug mode, in current code, dump_rndis_message() will not
dump anything but it still initialize some local variables and
process the switch logic which is unnecessary, especially in
high network throughput situation.

Signed-off-by: Simon Xiao <sixiao@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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