linux-kernel - Re: [PATCH 0/4] Mac IOP driver fixes

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Message-ID: <alpine.LNX.2.22.394.2006010931070.8@nippy.intranet>
Date:   Mon, 1 Jun 2020 10:05:05 +1000 (AEST)
From:   Finn Thain <fthain@...egraphics.com.au>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
cc:     Joshua Thompson <funaho@...ai.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/4] Mac IOP driver fixes

On Sun, 31 May 2020, Geert Uytterhoeven wrote:

> Hi Finn,
> 
> On Sun, May 31, 2020 at 1:16 AM Finn Thain <fthain@...egraphics.com.au> wrote:
> 
> > This patch series has several bug fixes for the IOP driver and some 
> > improvements to the debug level log messages.
> 
> Thanks for your series!
> 

Thanks for your review and for your diligence in the performance of all of 
your duties as maintainer.

> > Geert, please consider pushing these fixes for v5.8, if not the whole 
> > series.
> 
> I'm afraid it's a bit too late for that, as I expect the v5.8 merge 
> window to open tonight.

Well, it's not that important.

> Unless the fix is for a regression in v5.7.

AFAICT these bugs are as old as the original driver. But I don't think 
that disqualifies them from backporting, which I plan to do that once they 
hit mainline.

> BTW, how does the issue being fixed manifest itself? That's not clear to 
> me from the patch description.
> 

The bugs in the iop driver were found by inspection, in the course of 
debugging adb-iop driver failures that Stan encountered. It's possible 
that the adb-iop driver is not badly affected by these bugs (I don't 
know). It's possible that the iop driver bugs are among the reasons why 
the swim_iop driver was never stabilized. That driver was removed in 
b21a323710e7 ("[PATCH] remove the broken BLK_DEV_SWIM_IOP driver").