linux-kernel - Re: m68k build failures in -next: undefined reference to `arch_dma_prep

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Message-ID: <CAMuHMdUUpyiRp3LdfE0M96dM6kAzse+gfXWqEQWe9ScwT9GX4A@mail.gmail.com>
Date:   Mon, 8 Jul 2019 22:36:05 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Greg Ungerer <gerg@...ux-m68k.org>
Subject: Re: m68k build failures in -next: undefined reference to `arch_dma_prep_coherent'

Hi Christoph,

On Mon, Jul 8, 2019 at 10:22 PM Christoph Hellwig <hch@....de> wrote:
> On Mon, Jul 08, 2019 at 10:19:41PM +0200, Geert Uytterhoeven wrote:
> > Yeah, it started when I queued up the DMA rework.
> > I didn't double-check when Greg said it was OK for him, as it wouldn't affect
> > Coldfire or mmu. Sorry for that.
> > And that has just been pulled by Linus... Oops...

Note that the build failure is more subtle: both m5307c3_defconfig and
m5475evb_defconfig build fine in m68k/for-linus, but fail in
next-20190708.  So it fails when combined with other changes, going
in through a different tree (the DMA tree?).

> The fix should have been in your inbox for a while..

Thanks, your patch fixes that.
Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds