linux-kernel - Re: Build errors caused by modalias generation patch

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Date:	Tue, 7 May 2013 14:20:50 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	Andreas Schwab <schwab@...ux-m68k.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Re: Build errors caused by modalias generation patch

On Tue, May 7, 2013 at 12:58 PM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> On Tue, May 7, 2013 at 12:04 PM, Ralf Baechle <ralf@...ux-mips.org> wrote:
>> On Mon, May 06, 2013 at 07:19:53PM +0200, Andreas Schwab wrote:
>>> Please try the patch in
>>> <http://marc.info/?l=linux-kbuild&m=136767800809256&w=2>.
>>
>> No change in observed behaviour.  I did all my builds in empty object
>> directories so I don't see why this patch would make any difference.
>
> I'm getting this in an ia64 build (don't ask me why I build for itanic ;-):
>
> FATAL: drivers/acpi/button: sizeof(struct acpi_device_id)=14 is not a
> modulo of the size of section __mod_acpi_device_table=144.
> Fix definition of struct acpi_device_id in mod_devicetable.h
>
> This is next-20130501, with or without Andreas' fix.
>
> It works in my development tree based on yesterday's mainline
> (d7ab7302f970a254997687a1cdede421a5635c68).
>
> I'll try today's linux-next, and will bisect if I find time...

This was also caused by a leftover scripts/mod/devicetable-offsets.h in the
source tree.

Andreas' fix works (sort of, read on), but only if you run "make mrproper"
_after_ applying it.

Still, if you have other leftovers from a previous build in the source tree,
you get:

  Using /scratch/geert/linux/linux-next as source for kernel
  /scratch/geert/linux/linux-next is not clean, please run 'make mrproper'
  in the '/scratch/geert/linux/linux-next' directory.

However, you don't get that message if there's still a stale
scripts/mod/devicetable-offsets.h in the source tree.
Any idea how to fix 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
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