linux-kernel - Re: [PATCH] m68k/q40: Replace q40ide with pata

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Date:   Mon, 7 Jun 2021 15:41:25 +1200
From:   Michael Schmitz <schmitzmic@...il.com>
To:     Finn Thain <fthain@...ux-m68k.org>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Richard Zidlicky <rz@...ux-m68k.org>,
        Jens Axboe <axboe@...nel.dk>,
        "David S. Miller" <davem@...emloft.net>,
        linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org
Subject: Re: [PATCH] m68k/q40: Replace q40ide with pata_falcon and falconide

Hi Finn

Am 07.06.2021 um 14:07 schrieb Finn Thain:
>> are there any substantial changes from what I'd tested before?
>
> The request_region() stuff is new, and I reworked the host->get_lock and
> host->release_lock changes. So you may want to review it again.

I'll do that (and test the old falconide driver with your patch - never 
got around to that, and I now remember there was something fishy in that 
driver in relation to registering the IDE interrupt that I need to 
re-check).

>
>> Your patch conflicts with (I think) the Mac IDE patches now in Geert's
>> tree, and I'd rather avoid hand-patching the lot if at all possible:
>>
>> m68k_q40_Replace_q40ide_with_pata_falcon_and_falconide
>> Applying: m68k/q40: Replace q40ide with pata_falcon and falconide
>> error: patch failed: arch/m68k/configs/multi_defconfig:351
>> error: arch/m68k/configs/multi_defconfig: patch does not apply
>> error: patch failed: drivers/ide/Kconfig:731
>> error: drivers/ide/Kconfig: patch does not apply
>> error: patch failed: drivers/ide/Makefile:29
>> error: drivers/ide/Makefile: patch does not apply
>>
>
> I should have sent these as a two-part series. Sorry about that.
> You'll need to apply this patch first:
> https://lore.kernel.org/linux-ide/3de9a93d-2f7-a650-1fa-c2129a4a765b@nippy.intranet/T/

Looks like that's commit e4ab3dc4eb88f53730061a3976c1e63523c5567d which 
fixed the conflict for me, thanks.


>
>> What's your baseline for this patch?
>>
>
> I've used v5.12 and v5.13-rc5, but mostly I develop on the mac68k branch
> in my github repository.
>
>> (In the alternative: just add my Tested-by if nothing changed aside from the
>> IO region reservation)
>>
>
> I have tested these patches in Aranym (including a multi-platform
> atari/q40 build which required your ISA fix) but I don't have any way to
> test the q40-only code.
>

Neither have I, but I'd like to verify that the falconide driver still 
works with SCSI after this patch (can't see from the diff what the 
ramifications are for locking and request_irq() ... as I said, I 
remember something odd about the IDE interrupt that I need to verify).

Cheers,

	Michael