linux-kernel - Re: [PATCH 1/1] Macros with multiple statements should be enclosed in a do

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Message-ID: <YCTSNKrFQ88ipedb@kroah.com>
Date:   Thu, 11 Feb 2021 07:44:04 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Fatih YILDIRIM <yildirim.fatih@...il.com>
Cc:     pure.logic@...us-software.ie, johan@...nel.org, elder@...nel.org,
        greybus-dev@...ts.linaro.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Macros with multiple statements should be enclosed
 in a do - while loop.

On Thu, Feb 11, 2021 at 01:14:39AM +0300, Fatih YILDIRIM wrote:
> Signed-off-by: Fatih YILDIRIM <yildirim.fatih@...il.com>
> ---
>  drivers/staging/greybus/loopback.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
> index 2471448ba42a..c88ef3e894fa 100644
> --- a/drivers/staging/greybus/loopback.c
> +++ b/drivers/staging/greybus/loopback.c
> @@ -162,10 +162,12 @@ static ssize_t name##_avg_show(struct device *dev,		\
>  }									\
>  static DEVICE_ATTR_RO(name##_avg)
>  
> -#define gb_loopback_stats_attrs(field)				\
> -	gb_loopback_ro_stats_attr(field, min, u);		\
> -	gb_loopback_ro_stats_attr(field, max, u);		\
> -	gb_loopback_ro_avg_attr(field)
> +#define gb_loopback_stats_attrs(field)					\
> +	do {								\
> +		gb_loopback_ro_stats_attr(field, min, u);		\
> +		gb_loopback_ro_stats_attr(field, max, u);		\
> +		gb_loopback_ro_avg_attr(field);				\
> +	} while (0)
>  
>  #define gb_loopback_attr(field, type)					\
>  static ssize_t field##_show(struct device *dev,				\
> -- 
> 2.20.1
> 

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- Your patch breaks the build.

- You did not specify a description of why the patch is needed, or
  possibly, any description at all, in the email body.  Please read the
  section entitled "The canonical patch format" in the kernel file,
  Documentation/SubmittingPatches for what is needed in order to
  properly describe the change.

- You did not write a descriptive Subject: for the patch, allowing Greg,
  and everyone else, to know what this patch is all about.  Please read
  the section entitled "The canonical patch format" in the kernel file,
  Documentation/SubmittingPatches for what a proper Subject: line should
  look like.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot