linux-kernel - Re: [PATCH REGRESSION] Revert "ath10k: add quiet mode support for QCA6174/QCA9377"

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Date:   Wed, 07 Nov 2018 13:30:23 -0800
From:   Rajkumar Manoharan <rmanohar@...eaurora.org>
To:     Brian Norris <briannorris@...omium.org>
Cc:     ath10k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yu Wang <yyuwang@...eaurora.org>,
        Rakesh Pillai <pillair@...eaurora.org>,
        Govind Singh <govinds@...eaurora.org>, stable@...r.kernel.org,
        linux-wireless-owner@...r.kernel.org
Subject: Re: [PATCH REGRESSION] Revert "ath10k: add quiet mode support for
 QCA6174/QCA9377"

On 2018-11-07 10:56, Brian Norris wrote:
> This reverts commit cfb353c0dc058bc1619cc226d3cbbda1f360bdd3.
> 
> WCN3990 firmware does not yet implement this feature, and so it crashes
> like this:
> 
>   fatal error received: err_qdi.c:456:EX:wlan_process:1:WLAN 
> RT:207a:PC=b001b4f0
> 
> This feature can be re-implemented with a proper service bitmap or 
> other
> feature-discovery mechanism in the future. But it should not break
> working boards.
> 
Brian,

The change "ath10k: add quiet mode support for QCA6174/QCA9377" was 
merged even
before full WCN3990 device support was added in ath10k. How come it 
could be regression
for WCN3990. I know both are sharing same WMI-TLV interface but 
reverting this
will break QCA6174/QCA9377. no?

I would prefer to handle this within WMI callback or upper layer.

-Rajkumar