linux-kernel - Re: [PATCH] serial: samsung: macros with complex values should be enclosed in parentheses

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Message-ID: <20180322084511.GA6211@kroah.com>
Date:   Thu, 22 Mar 2018 09:45:11 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "y.k.oh" <y.k.oh@...sung.com>
Cc:     jslaby@...e.com, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] serial: samsung: macros with complex values should be
 enclosed in parentheses

On Thu, Mar 22, 2018 at 01:37:45PM +0900, y.k.oh wrote:
> 
> 
> On 03/14/2018 10:58 PM, Greg KH wrote:
> > On Wed, Mar 14, 2018 at 11:17:05AM +0900, YOUNGKEUN OH wrote:
> >> Cleanup checkpatch error:
> >> ERROR: Macros with complex values should be enclosed in parentheses
> >>
> >> Signed-off-by: YOUNGKEUN OH <y.k.oh@...sung.com>
> >> ---
> >>  drivers/tty/serial/samsung.c | 16 ++++++++--------
> >>  1 file changed, 8 insertions(+), 8 deletions(-)
> >>
> >> diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
> >> index 3f2f8c1..da9bddb1 100644
> >> --- a/drivers/tty/serial/samsung.c
> >> +++ b/drivers/tty/serial/samsung.c
> >> @@ -1455,7 +1455,7 @@ static int __init s3c24xx_serial_console_init(void)
> >>  }
> >>  console_initcall(s3c24xx_serial_console_init);
> >>
> >> -#define S3C24XX_SERIAL_CONSOLE &s3c24xx_serial_console
> >> +#define S3C24XX_SERIAL_CONSOLE (&s3c24xx_serial_console)
> > 
> > That's not a complex macro!
> > 
> > Please use checkpatch as a hint, not the "truth".
> > 
> > thanks,
> > 
> > greg k-h
> > 
> Dear Greg.
> 
> Yes! Of course that's not a pretty complex macro. However, I think it is
> important to make a small effort to modify the minimum standard,
> Checkpatch ERROR, to ensure consistency in the Linux code.
> Starting with this Checkpatch error of samsung.c, I would like to start
> my efforts on contribution from a small point.  Please review it again.

Why would I review something again that is not correct?

If you wish to start out in kernel development, please start in
drivers/staging/*/TODO, not in "core" kernel code.  That is what the
drivers/staging/ code is there for.

good luck!

greg k-h