Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Sender: Guenter Roeck <groeck7@gmail.com>
Subject: Re: [PATCH 5.13 32/35] Revert "spi: mediatek: fix fifo rx mode"
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org
Cc:     stable@vger.kernel.org, Peter Hess <peter.hess@ph-home.de>,
        Frank Wunderlich <frank-w@public-files.de>,
        Mark Brown <broonie@kernel.org>,
        Sasha Levin <sashal@kernel.org>
References: <20210806081113.718626745@linuxfoundation.org>
 <20210806081114.781183194@linuxfoundation.org>
From:   Guenter Roeck <linux@roeck-us.net>
Message-ID: <1be93ec0-43cd-f86b-aeb8-64971b4fcedd@roeck-us.net>
Date:   Fri, 6 Aug 2021 11:54:08 -0700
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.11.0
MIME-Version: 1.0
In-Reply-To: <20210806081114.781183194@linuxfoundation.org>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 8/6/21 1:17 AM, Greg Kroah-Hartman wrote:
> From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> 
> This reverts commit 09b8cc7810587257e5f82080884001301e1a1ba9 which is
> commit 3a70dd2d050331ee4cf5ad9d5c0a32d83ead9a43 upstream.
> 
> It has been found to have problems.
> 
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Cc: Peter Hess <peter.hess@ph-home.de>
> Cc: Frank Wunderlich <frank-w@public-files.de>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Sasha Levin <sashal@kernel.org>
> Link: https://lore.kernel.org/r/efee3a58-a4d2-af22-0931-e81b877ab539@roeck-us.net
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The problem with the reverted patch has now been fixed in the mainline
kernel with commit 0d5c3954b35e ("spi: mediatek: Fix fifo transfer").
So an alternative to this revert might be to apply commit 0d5c3954b35e
instead.

Thanks,
Guenter