From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH V2 net-next] liquidio: fix kernel panic when NIC
 firmware is older than 1.7.2
Date: Sat, 07 Jul 2018 11:10:56 +0900 (KST)
Message-ID: <20180707.111056.21259442950793963.davem@davemloft.net>
References: <20180706182707.GA1720@felix-thinkpad.cavium.com>
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Cc: netdev@vger.kernel.org, raghu.vatsavayi@cavium.com,
        derek.chickles@cavium.com, satananda.burla@cavium.com,
        ricardo.farrington@cavium.com
To: felix.manlunas@cavium.com
Return-path: <netdev-owner@vger.kernel.org>
Received: from shards.monkeyblade.net ([23.128.96.9]:41026 "EHLO
        shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S932164AbeGGCK7 (ORCPT
        <rfc822;netdev@vger.kernel.org>); Fri, 6 Jul 2018 22:10:59 -0400
In-Reply-To: <20180706182707.GA1720@felix-thinkpad.cavium.com>
Sender: netdev-owner@vger.kernel.org
List-ID: <netdev.vger.kernel.org>

From: Felix Manlunas <felix.manlunas@cavium.com>
Date: Fri, 6 Jul 2018 11:27:07 -0700

> From: Rick Farrington <ricardo.farrington@cavium.com>
> 
> Pre-1.7.2 NIC firmware does not support (and does not respond to) the "get
> speed" command which is sent by the 1.7.2 driver (for CN23XX-225 cards
> only) during modprobe.  Due to a bug in older firmware (with respect to
> unknown commands), this unsupported command causes a cascade of errors that
> ends in a kernel panic.
> 
> Fix it by making the sending of the "get speed" command conditional on the
> firmware version.
> 
> Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>

Applied, thanks.