On Thu, 7 Dec 2023 10:44:33 +0900
Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Nov 30, 2023 at 02:10:43PM -0500, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
> >
> > 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@xxxxxxxxxxxxxxx # 6.1.x: 3837a03 serial: sc16is7xx: improve regmap debugfs by using one regmap per port
> > Suggested-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> > Signed-off-by: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
> > ---
> > 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.
>
> Looks like the 0-day test bot found problems with this, so I'll hold off
> on taking this patch and the rest of the series until that's fixed up
> with a new version of this series.
No problem, I am on it.
Hugo
