linux-kernel - Re: [PATCH] drm/rockchip: use DRM_DEV_ERROR for log output

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Message-ID: <20191108124630.GA10207@wambui>
Date:   Fri, 8 Nov 2019 15:46:30 +0300
From:   Wambui Karuga <wambui.karugax@...il.com>
To:     Sean Paul <sean@...rly.run>
Cc:     hjc@...k-chips.com, heiko@...ech.de, airlied@...ux.ie,
        daniel@...ll.ch, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/rockchip: use DRM_DEV_ERROR for log output

On Thu, Nov 07, 2019 at 08:38:51AM -0500, Sean Paul wrote:
> On Thu, Nov 07, 2019 at 01:54:22AM -0800, Joe Perches wrote:
> > On Thu, 2019-11-07 at 12:29 +0300, Wambui Karuga wrote:
> > > Replace the use of the dev_err macro with the DRM_DEV_ERROR
> > > DRM helper macro.
> > 
> > The commit message should show the reason _why_ you are doing
> > this instead of just stating that you are doing this.
> > 
> > It's not that dev_err is uncommon in drivers/gpu/drm.
> > 
> 
> It is uncommon (this is the sole instance) in rockchip, however. So it makes
> sense to convert the dev_* prints in rockchip to DRM_DEV for consistency.
> 
> Wambui, could you also please convert the dev_warn instance as well?
> 
Hey, Sean.
Trying to convert this dev_warn instance, but the corresponding DRM_WARN
macro does not take the dev parameter which seems to be useful in the
original output.
Should I still convert it to DRM_WARN without the hdmi->dev parameter?

Thanks,
wambui
> I'll apply this to drm-misc-next and expand on the commit message a bit.
> 
> Thanks,
> 
> Sean
> 
> > $ git grep -w dev_err drivers/gpu/drm | wc -l
> > 1950
> > $ git grep -w DRM_DEV_ERROR drivers/gpu/drm | wc -l
> > 756
> > 
> > > diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
> > []
> > > @@ -916,7 +916,7 @@ static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev)
> > >  	}
> > >  
> > >  	if (!dsi->cdata) {
> > > -		dev_err(dev, "no dsi-config for %s node\n", np->name);
> > > +		DRM_DEV_ERROR(dev, "no dsi-config for %s node\n", np->name);
> > >  		return -EINVAL;
> > >  	}
> > 
> > 
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@...ts.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
> -- 
> Sean Paul, Software Engineer, Google / Chromium OS

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