From: Greg KH <gregkh@linuxfoundation.org>
To: Hugo Villeneuve <hugo@hugovil.com>
Cc: Jiri Slaby <jirislaby@kernel.org>,
fvallee@eukrea.fr, linux-kernel@vger.kernel.org,
linux-serial@vger.kernel.org,
Hugo Villeneuve <hvilleneuve@dimonoff.com>
Subject: Re: [PATCH 12/15] serial: sc16is7xx: add missing space between macro args (checkpatch)
Date: Wed, 1 Oct 2025 07:16:06 +0200 [thread overview]
Message-ID: <2025100132-usage-sandstone-8a9f@gregkh> (raw)
In-Reply-To: <20250930160828.546867810b4a17c36a5030c6@hugovil.com>
On Tue, Sep 30, 2025 at 04:08:28PM -0400, Hugo Villeneuve wrote:
> Hi Jiri,
>
> On Mon, 29 Sep 2025 08:15:56 +0200
> Jiri Slaby <jirislaby@kernel.org> wrote:
>
> > On 24. 09. 25, 17:37, Hugo Villeneuve wrote:
> > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > >
> > > Fix the following checkpatch error:
> > >
> > > ERROR: space required after that ',' (ctx:VxV)
> > > +#define to_sc16is7xx_one(p,e)...
> > >
> > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > > ---
> > > drivers/tty/serial/sc16is7xx.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
> > > index a05be92f7e776..9d04d665ec9ab 100644
> > > --- a/drivers/tty/serial/sc16is7xx.c
> > > +++ b/drivers/tty/serial/sc16is7xx.c
> > > @@ -365,7 +365,7 @@ static struct uart_driver sc16is7xx_uart = {
> > > .nr = SC16IS7XX_MAX_DEVS,
> > > };
> > >
> > > -#define to_sc16is7xx_one(p,e) ((container_of((p), struct sc16is7xx_one, e)))
> > > +#define to_sc16is7xx_one(p, e) ((container_of((p), struct sc16is7xx_one, e)))
> >
> > Or perhaps make it type-safe and more obvious by switching it to an inline?
>
> Not easy to do, because this macro is also used with the second
> argument "e" not always being used with the same member name. At the
> same time, this is what makes this macro more complex than it should
> be. I will convert it to an inline and simplify it by removing the
> second argument (and of course adapt the code where the new, simpler,
> inline function no longer works).
Please don't use an inline fuction for container_of() as you will just
need to change it later in the future when you really want to use
container_of_const() instead :)
thanks,
greg k-h
next prev parent reply other threads:[~2025-10-01 5:16 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-24 15:37 [PATCH 00/15] serial: sc16is7xx: register access fixes and improvements Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 01/15] serial: sc16is7xx: remove useless enable of enhanced features Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 02/15] serial: sc16is7xx: rename LCR macros to better reflect usage Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 03/15] serial: sc16is7xx: rename EFR mutex with generic name Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 04/15] serial: sc16is7xx: define common register access function Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 05/15] serial: sc16is7xx: use guards for simple mutex locks Hugo Villeneuve
2025-09-29 6:09 ` Jiri Slaby
2025-09-30 0:27 ` Hugo Villeneuve
2025-09-30 4:01 ` Jiri Slaby
2025-09-30 13:57 ` Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 06/15] serial: sc16is7xx: use dev_err_probe() instead of dev_err() Hugo Villeneuve
2025-09-29 6:10 ` Jiri Slaby
2025-09-30 0:32 ` Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 07/15] serial: sc16is7xx: declare SPR/TLR/XOFF2 register as volatile Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 08/15] serial: sc16is7xx: move port/channel init to separate function Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 09/15] serial: sc16is7xx: Kconfig: allow building with COMPILE_TEST Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 10/15] serial: sc16is7xx: use KBUILD_MODNAME Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 11/15] serial: sc16is7xx: remove empty line Hugo Villeneuve
2025-09-29 6:14 ` Jiri Slaby
2025-09-30 0:53 ` Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 12/15] serial: sc16is7xx: add missing space between macro args (checkpatch) Hugo Villeneuve
2025-09-29 6:15 ` Jiri Slaby
2025-09-30 20:08 ` Hugo Villeneuve
2025-10-01 5:16 ` Greg KH [this message]
2025-10-01 13:29 ` Hugo Villeneuve
2025-10-02 5:24 ` Greg KH
2025-09-24 15:37 ` [PATCH 13/15] serial: sc16is7xx: change incorrect indentation Hugo Villeneuve
2025-09-26 9:18 ` Maarten Brock
2025-09-26 16:11 ` Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 14/15] serial: sc16is7xx: reformat comments Hugo Villeneuve
2025-09-29 6:18 ` Jiri Slaby
2025-09-30 19:42 ` Hugo Villeneuve
2025-09-24 15:37 ` [PATCH 15/15] serial: sc16is7xx: add/improve comments Hugo Villeneuve
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