From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Nandha Kumar Singaram <nandhakumar.singaram@gmail.com>
Cc: Johan Hovold <johan@kernel.org>, Alex Elder <elder@kernel.org>,
greybus-dev@lists.linaro.org, linux-staging@lists.linux.dev,
linux-kernel@vger.kernel.org, kumaran.4353@gmail.com
Subject: Re: [PATCH] staging: greybus: avoid macro argument precedence issues
Date: Sun, 22 Oct 2023 12:24:48 +0200 [thread overview]
Message-ID: <2023102210-undead-pucker-a1f2@gregkh> (raw)
In-Reply-To: <20231021214840.GA6557@ubuntu>
On Sat, Oct 21, 2023 at 02:48:40PM -0700, Nandha Kumar Singaram wrote:
> Adhere to linux coding style, added parentheses around
> macro argument 'gcam'.
> CHECK: Macro argument 'gcam' may be better as '(gcam)' to
> avoid precedence issues
>
> Signed-off-by: Nandha Kumar Singaram <nandhakumar.singaram@gmail.com>
> ---
> drivers/staging/greybus/camera.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c
> index cdbb42cd413b..ae49e37a87e9 100644
> --- a/drivers/staging/greybus/camera.c
> +++ b/drivers/staging/greybus/camera.c
> @@ -180,9 +180,9 @@ static const struct gb_camera_fmt_info *gb_camera_get_format_info(u16 gb_fmt)
>
> #define GB_CAMERA_MAX_SETTINGS_SIZE 8192
>
> -#define gcam_dbg(gcam, format...) dev_dbg(&gcam->bundle->dev, format)
> -#define gcam_info(gcam, format...) dev_info(&gcam->bundle->dev, format)
> -#define gcam_err(gcam, format...) dev_err(&gcam->bundle->dev, format)
> +#define gcam_dbg(gcam, format...) dev_dbg(&(gcam)->bundle->dev, format)
> +#define gcam_info(gcam, format...) dev_info(&(gcam)->bundle->dev, format)
> +#define gcam_err(gcam, format...) dev_err(&(gcam)->bundle->dev, format)
Sorry, but checkpatch is wrong here, this is not a problem at all. Look
at what you changed and think about if the macro argument could actually
be anything other than a pointer.
thanks,
greg k-h
next prev parent reply other threads:[~2023-10-22 10:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-21 21:48 [PATCH] staging: greybus: avoid macro argument precedence issues Nandha Kumar Singaram
2023-10-22 10:24 ` Greg Kroah-Hartman [this message]
2023-10-22 10:34 ` Nandha Kumar Singaram
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