linux-kernel - Re: [PATCH 1/1] staging: imx-drm: Lines over 80 characters fixed.

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Date:	Tue, 19 Aug 2014 16:03:59 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Yannis Damigos <giannis.damigos@...il.com>
Cc:	Philipp Zabel <p.zabel@...gutronix.de>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	devel@...verdev.osuosl.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] staging: imx-drm: Lines over 80 characters fixed.

On Tue, Aug 19, 2014 at 05:36:10PM +0300, Yannis Damigos wrote:
> diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
> index 720868b..d6657a0 100644
> --- a/drivers/staging/imx-drm/ipuv3-crtc.c
> +++ b/drivers/staging/imx-drm/ipuv3-crtc.c
> @@ -201,9 +201,10 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
>  		return ret;
>  	}
>  
> -	return ipu_plane_mode_set(ipu_crtc->plane[0], crtc, mode, crtc->primary->fb,
> -				  0, 0, mode->hdisplay, mode->vdisplay,
> -				  x, y, mode->hdisplay, mode->vdisplay);
> +	return ipu_plane_mode_set(ipu_crtc->plane[0], crtc, mode,
> +			crtc->primary->fb,
> +			0, 0, mode->hdisplay, mode->vdisplay,
> +			x, y, mode->hdisplay, mode->vdisplay);

Why change the indentation like this?  There is a wisdom which suggests
that it's better to align the arguments with the function call's first
argument, unless there is a strong reason not to.  In this case, I can't
see a strong reason to change the indentation to some different style
here.

>  }
>  
>  static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
> @@ -227,7 +228,8 @@ static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
>  
>  	if (ipu_crtc->newfb) {
>  		ipu_crtc->newfb = NULL;
> -		ipu_plane_set_base(ipu_crtc->plane[0], ipu_crtc->base.primary->fb,
> +		ipu_plane_set_base(ipu_crtc->plane[0],
> +				ipu_crtc->base.primary->fb,
>  				ipu_crtc->plane[0]->x, ipu_crtc->plane[0]->y);

What may make better sense here is:
		struct ipu_plane *plane = ipu_crtc->plane[0];

		ipu_crtc->newfb = NULL;
		ipu_plane_set_base(plane, ipu_crtc->base.primary->fb,
				   plane->x, plane->y);

which to me looks loads nicer.

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