Re: FAILED: patch "[PATCH] firmware: imx: scu: Fix corruption of header" failed to apply to 5.7-stable tree

[Sasha Levin <sashal@kernel.org>]

On Mon, Jun 15, 2020 at 05:03:30PM +0200, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 5.7-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From f5f27b79eab80de0287c243a22169e4876b08d5e Mon Sep 17 00:00:00 2001
>From: Franck LENORMAND <franck.lenormand@nxp.com>
>Date: Thu, 26 Mar 2020 00:00:05 +0200
>Subject: [PATCH] firmware: imx: scu: Fix corruption of header
>
>The header of the message to send can be changed if the
>response is longer than the request:
> - 1st word, the header is sent
> - the remaining words of the message are sent
> - the response is received asynchronously during the
>   execution of the loop, changing the size field in
>   the header
> - the for loop test the termination condition using
>   the corrupted header
>
>It is the case for the API build_info which has just a
>header as request but 3 words in response.
>
>This issue is fixed storing the header locally instead of
>using a pointer on it.
>
>Fixes: edbee095fafb (firmware: imx: add SCU firmware driver support)
>
>Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
>Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
>Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
>Cc: stable@vger.kernel.org
>Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
>Signed-off-by: Shawn Guo <shawnguo@kernel.org>

I've also grabbed f25a066d1a07 ("firmware: imx-scu: Support one TX and
one RX") for 5.7, 5.6, and 5.4.

-- 
Thanks,
Sasha