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

[Leo Li]

> -----Original Message-----
> From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> Sent: Tuesday, May 30, 2023 8:51 AM
> To: Leo Li <leoyang.li@xxxxxxx>
> Cc: Stuart Yoder <stuyoder@xxxxxxxxx>; Gaurav Jain
> <gaurav.jain@xxxxxxx>; Roy Pledge <roy.pledge@xxxxxxx>; Diana
> Madalina Craciun (OSS) <diana.craciun@xxxxxxxxxxx>; Eric Dumazet
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> kvm@xxxxxxxxxxxxxxx; Horia Geanta <horia.geanta@xxxxxxx>; Jakub
> Kicinski <kuba@xxxxxxxxxx>; Paolo Abeni <pabeni@xxxxxxxxxx>; Laurentiu
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> <richardcochran@xxxxxxxxx>; Pankaj Gupta <pankaj.gupta@xxxxxxx>; Alex
> Williamson <alex.williamson@xxxxxxxxxx>; linux-arm-
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> Y.B. Lu <yangbo.lu@xxxxxxx>; dmaengine@xxxxxxxxxxxxxxx; linuxppc-
> dev@xxxxxxxxxxxxxxxx; David S. Miller <davem@xxxxxxxxxxxxx>
> 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@xxxxxxxxxxxxxx> 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.

I have applied them to the next branch of my tree.  They will be part of the Linux-next soon.

Regards,
Leo