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Subject: Re: [RESEND] [PATCH 3/3] iwlwifi: Load firmware exclusively for Intel
 WiFi
From:   Kai Heng Feng <kai.heng.feng@canonical.com>
In-Reply-To: <87y3bfiees.fsf@kamboji.qca.qualcomm.com>
Date:   Wed, 3 Oct 2018 17:27:41 +0800
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Johannes Berg <johannes.berg@intel.com>,
        Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
        Luca Coelho <luciano.coelho@intel.com>,
        Intel Linux Wireless <linuxwifi@intel.com>,
        "David S. Miller" <davem@davemloft.net>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org
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Message-Id: <265BAF93-4BFF-4850-92F7-80AC39496473@canonical.com>
References: <20181003073556.28154-1-kai.heng.feng@canonical.com>
 <20181003073556.28154-3-kai.heng.feng@canonical.com>
 <87y3bfiees.fsf@kamboji.qca.qualcomm.com>
To:     Kalle Valo <kvalo@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
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> On Oct 3, 2018, at 5:10 PM, Kalle Valo <kvalo@codeaurora.org> wrote:
> 
> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
> 
>> To avoid the firmware loading race between Bluetooth and WiFi on Intel
>> 8260, load firmware exclusively when BT_INTEL is enabled.
>> 
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> 
> Still the commit log tells nothing about the actual problem which makes
> review impossible.

Sorry for that. The first two patches [1] only sends to linux-bluetooth and LMKL.

I don’t know what really happened at hardware/firmware level, but making btusb and iwlwifi load firmware sequentially can workaround the issue.

Matt Chen may be able to explain this issue with more detail.

[1] https://lkml.org/lkml/2018/10/3/322

> 
> -- 
> Kalle Valo