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From: Jean Delvare <>
To: Jiri Slaby <>
Cc: Geert Uytterhoeven <>,,,, Michal Marek <>,,,, Jiri Slaby <>
Subject: Re: i2c-designware-core: KBUILD_MODNAME undeclared [was: Build regressions/improvements  in v3.6-rc1]
Date: Fri, 31 Aug 2012 14:44:29 +0200	[thread overview]
Message-ID: <20120831144429.554345d0@endymion.delvare> (raw)
In-Reply-To: <>

Hi Jiri, Geert,

On Wed, 15 Aug 2012 22:01:38 +0200, Jiri Slaby wrote:
> On 08/04/2012 11:24 AM, Geert Uytterhoeven wrote:
> > Below is the list of build error/warning regressions/improvements in
> > v3.6-rc1[1] compared to v3.5[2].
> ...
> >   + drivers/i2c/busses/i2c-designware-core.c: error: 'KBUILD_MODNAME' undeclared (first use in this function):
> This is a real problem we are facing here. It happens on PPC when all
> It's because i2c-designware-core.c is used in two modules
> (i2c-designware-platform and i2c-designware-pci) and KBUILD_MODNAME is
> not defined for those because (scripts/Makefile.lib):
> # $(modname_flags) #defines KBUILD_MODNAME as the name of the module
> # it will end up in (or would, if it gets compiled in)
> # Note: Files that end up in two or more modules are compiled
> #       without the KBUILD_MODNAME definition. The reason is
> #       that any made-up name would differ in different configs.
> But DYNAMIC_DEBUG needs KBUILD_MODNAME for dev_dbg used in that source.
> Any ideas? Why is it not a separate module for example?

It should be. Axel Lin has posted a patch which does that and it should
fix your problem:

Please test and confirm it does the right thing. I'll push the patch
upstream if it does.

Jean Delvare

  reply	other threads:[~2012-08-31 12:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-04  9:24 Build regressions/improvements in v3.6-rc1 Geert Uytterhoeven
2012-08-15 20:01 ` i2c-designware-core: KBUILD_MODNAME undeclared [was: Build regressions/improvements in v3.6-rc1] Jiri Slaby
2012-08-31 12:44   ` Jean Delvare [this message]
2012-08-31 13:18     ` Jiri Slaby

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