linux-kernel - Re: [PATCH v2 1/9] list: add list_last_entry_or

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Message-ID: <20250902-speedy-friendly-alpaca-f80709@houat>
Date: Tue, 2 Sep 2025 14:22:28 +0200
From: Maxime Ripard <mripard@...nel.org>
To: Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
	Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Robert Foss <rfoss@...nel.org>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
	Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, Liu Ying <victor.liu@....com>, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, 
	Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Hui Pu <Hui.Pu@...ealthcare.com>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, Andrew Morton <akpm@...ux-foundation.org>, 
	Zijun Hu <quic_zijuhu@...cinc.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 1/9] list: add list_last_entry_or_null()

On Tue, Sep 02, 2025 at 01:57:09PM +0200, Luca Ceresoli wrote:
> Hello DRM maintainers,
> 
> On Wed, 20 Aug 2025 16:43:56 +0300
> Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:
> 
> > On Thu, Aug 14, 2025 at 06:36:09PM +0200, Luca Ceresoli wrote:
> > > On Wed, 6 Aug 2025 00:55:02 +0300
> > > Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:
> > >   
> > > > On Fri, Aug 01, 2025 at 07:05:23PM +0200, Luca Ceresoli wrote:  
> > > > > Add an equivalent of list_first_entry_or_null() to obtain the last element
> > > > > of a list.    
> > > > 
> > > > Acked-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>  
> > > 
> > > Thanks Andy!
> > > 
> > > However I'm not sure when and where this should be applied.
> > > 
> > > Except for this one patch, all patches in the series are for
> > > drm-misc-next. Also, patch 1 is currently not needed by any other
> > > series AFAIK.
> > > 
> > > Based on the above, is it correct to assume that the whole series can
> > > be applied on drm-misc-next? (when other patches will have a
> > > R-by/Ack-by of course)
> > > 
> > > Also, is Andy's A-by enough to apply this patch?  
> > 
> > The list.h is common for many, I think going via DRM with my Ack is enough
> > based on the Git history of my changes in this file. But if you want more
> > reliable source, get an Ack from Andrew Morton.
> 
> While applying this patch with dim on drm-misc-next, dim push-branch
> failed because:
> 
>   dim: ERROR: cb86408b1fc2 ("list: add list_last_entry_or_null()"): Mandatory Maintainer Acked-by missing., aborting
> 
> Looking at the dim code, it is looking for a Reviewed- or Acked-by from
> people listed by `scripts/get_maintainer.pl --no-git-fallback -m --nol
> --norolestats`. but that command returns an empty string, so it will
> never allow me to push.
> 
> How can I get that commit pushed to drm-misc-next?

Adding a MAINTAINERS entry for it would be nice too

Maxime

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