linux-kernel - Re: [PATCH 0/6] bus: fsl-mc: Make remove function return void

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Message-ID: <20230530135046.oovq5gxzbjfqgzos@pengutronix.de>
Date:   Tue, 30 May 2023 15:50:46 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Li Yang <leoyang.li@....com>
Cc:     Stuart Yoder <stuyoder@...il.com>,
        Gaurav Jain <gaurav.jain@....com>,
        Roy Pledge <roy.pledge@....com>,
        "Diana Madalina Craciun (OSS)" <diana.craciun@....nxp.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Horia Geanta <horia.geanta@....com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Richard Cochran <richardcochran@...il.com>,
        Pankaj Gupta <pankaj.gupta@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "Y.B. Lu" <yangbo.lu@....com>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 0/6] bus: fsl-mc: Make remove function return void

Hello,

On Mon, May 08, 2023 at 04:57:00PM -0500, Li Yang wrote:
> On Mon, May 8, 2023 at 8:44 AM Uwe Kleine-König
> <u.kleine-koenig@...gutronix.de> wrote:
> > On Thu, Apr 13, 2023 at 08:00:04AM +0200, Uwe Kleine-König wrote:
> > > On Wed, Apr 12, 2023 at 09:30:05PM +0000, Leo Li wrote:
> > > > > On Fri, Mar 10, 2023 at 11:41:22PM +0100, Uwe Kleine-König wrote:
> > > > > > Hello,
> > > > > >
> > > > > > many bus remove functions return an integer which is a historic
> > > > > > misdesign that makes driver authors assume that there is some kind of
> > > > > > error handling in the upper layers. This is wrong however and
> > > > > > returning and error code only yields an error message.
> > > > > >
> > > > > > This series improves the fsl-mc bus by changing the remove callback to
> > > > > > return no value instead. As a preparation all drivers are changed to
> > > > > > return zero before so that they don't trigger the error message.
> > > > >
> > > > > Who is supposed to pick up this patch series (or point out a good reason for
> > > > > not taking it)?
> > > >
> > > > Previously Greg KH picked up MC bus patches.
> > > >
> > > > If no one is picking up them this time, I probably can take it through
> > > > the fsl soc tree.
> > >
> > > I guess Greg won't pick up this series as he didn't get a copy of it :-)
> > >
> > > Browsing through the history of drivers/bus/fsl-mc there is no
> > > consistent maintainer to see. So if you can take it, that's very
> > > appreciated.
> >
> > My mail was meant encouraging, maybe it was too subtile? I'll try again:
> >
> > Yes, please apply, that would be wonderful!
> 
> Sorry for missing your previous email.  I will do that.  Thanks.

Either you didn't apply this patch set yet, or your tree isn't in next.
Both variants would be great to be fixed.

I have another change pending for drivers/bus/fsl-mc/fsl-mc-bus.c, would
be great to see these base patches in next first.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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