From 8e9dca536e930a7e67f771c2fe320d793d99db55 Mon Sep 17 00:00:00 2001
From: Greg Rose <gregory.v.rose@intel.com>
Date: Wed, 18 Dec 2013 13:45:53 +0000
Subject: [PATCH] i40e: add a comment on barrier and fix panic on reset

The memory barrier used in maybe_stop_tx can use a comment.

Also add checks to VSI->rx_rings to ensure a kernel panic is not induced.

Change-ID: I48cc1bf1d6cf301818155b737edeef77c0d790c7
Change-ID: I1363a8445fbf521a26267849966296ed55f43ad8
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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