linux-kernel - Re: [PATCH 00/10] floppy driver cleanups (deobfuscation)

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Date:   Sun, 1 Mar 2020 18:01:03 +0100
From:   Ondrej Zary <linux@...y.sk>
To:     Willy Tarreau <w@....eu>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Denis Efremov <efremov@...ux.com>,
        Jens Axboe <axboe@...nel.dk>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-block" <linux-block@...r.kernel.org>
Subject: Re: [PATCH 00/10] floppy driver cleanups (deobfuscation)

On Sunday 01 March 2020 07:46:01 Willy Tarreau wrote:
> On Sun, Mar 01, 2020 at 12:19:14AM +0100, Ondrej Zary wrote:
> > On Saturday 29 February 2020 16:58:11 Linus Torvalds wrote:
> > > On Sat, Feb 29, 2020 at 8:14 AM Willy Tarreau <w@....eu> wrote:
> > > > So if you or Denis think there's some value in me continuing to
> > > > explore one of these areas, I can continue, otherwise I can simply
> > > > resend the last part of my series with the few missing Cc and be done
> > > > with it.
> > >
> > > It's fine - this driver isn't worth spending a ton of effort on.
> > >
> > > The only users are virtualization, and even they are going away
> > > because floppies are so small, and other things have become more
> > > standard anyway (ie USB disk) or easier to emulate (NVMe or whatever).
> > >
> > > So I suspect the only reason floppy is used even in that area is just
> > > legacy "we haven't bothered updating to anything better and we have
> > > old scripts and images that work".
> > >
> > >               Linus
> >
> > There are real users with real floppy drives out there.
>
> OK thanks for the feedback. Then I'll continue the minimum cleanups to
> try to focus on maintainability and on the principle of least surprise,
> and I'll have a quick look at the possible simplifications brought by
> the limitation to one FDC, in case that really helps.

Thank you very much for the work.

I haven't ever seen a machine with more than single FDC so that case might be 
hard to test. There are some ISA FDCs with configurable I/O addresses (maybe 
I have one of them somewhere) but they might not work properly together with 
on-board super I/O FDCs.
The most common case - one FDC with at most two drives should be enough for 
the modern simplified driver.

-- 
Ondrej Zary