linux-kernel - Re: [RFC] mmc: cqhci: commit descriptors before setting the doorbell

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Message-ID: <ceb94a3f-9785-9fc7-b9e5-35435df9b498@ti.com>
Date:   Fri, 18 Oct 2019 16:57:32 +0530
From:   Faiz Abbas <faiz_abbas@...com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        Asutosh Das <asutoshd@...eaurora.org>,
        Harjani Ritesh <riteshh@...eaurora.org>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [RFC] mmc: cqhci: commit descriptors before setting the doorbell

Hi Uffe,

On 18/10/19 4:28 PM, Ulf Hansson wrote:
> On Mon, 14 Oct 2019 at 20:37, Faiz Abbas <faiz_abbas@...com> wrote:
>>
>> Add a write memory barrier to make sure that descriptors are actually
>> written to memory before ringing the doorbell.
>>
>> Signed-off-by: Faiz Abbas <faiz_abbas@...com>
> 
> Applied for fixes and by adding a stable tag, thanks!
> 
> BTW, do you have a valid commit that it fixes?
> 
You can add:

Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host")

Thanks,
Faiz