Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:8 as permitted sender) client-ip=2620:137:e000::3:8;
Date:   Thu, 7 Dec 2023 10:45:48 +0900
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Hugo Villeneuve <hugo@hugovil.com>
Cc:     jirislaby@kernel.org, hvilleneuve@dimonoff.com,
        linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
        stable@vger.kernel.org, Andy Shevchenko <andy.shevchenko@gmail.com>
Subject: Re: [PATCH 1/7] serial: sc16is7xx: fix snprintf format specifier in
 sc16is7xx_regmap_name()
Message-ID: <2023120748-macaroni-gaining-335f@gregkh>
References: <20231130191050.3165862-1-hugo@hugovil.com>
 <20231130191050.3165862-2-hugo@hugovil.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20231130191050.3165862-2-hugo@hugovil.com>
Precedence: bulk

On Thu, Nov 30, 2023 at 02:10:43PM -0500, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> 
> Change snprint format specifier from %d to %u since port_id is unsigned.
> 
> Fixes: 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port")
> Cc: stable@vger.kernel.org # 6.1.x: 3837a03 serial: sc16is7xx: improve regmap debugfs by using one regmap per port
> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> ---
> I did not originally add a "Cc: stable" tag for commit 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port")
> as it was intended only to improve debugging using debugfs. But
> since then, I have been able to confirm that it also fixes a long standing
> bug in our system where the Tx interrupt are no longer enabled at some
> point when transmitting large RS-485 paquets (> 64 bytes, which is the size
> of the FIFO). I have been investigating why, but so far I haven't found the
> exact cause, altough I suspect it has something to do with regmap caching.
> Therefore, I have added it as a prerequisite for this patch so that it is
> automatically added to the stable kernels.

As you are splitting fixes from non-fixes in this series, please resend
this as 2 different series, one that I can apply now to my tty-linus
branch to get merged for 6.7-final, and one that can go into tty-next
for 6.8-rc1.  Mixing them up here just ensures that they all would get
applied to tty-next.

thanks,

greg k-h