linux-kernel - Re: make headers_install broken for ARCH=m68k in 2.6.29-rc7.

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Message-ID: <20090401190340.GA29673@uranus.ravnborg.org>
Date:	Wed, 1 Apr 2009 21:03:40 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Cc:	Rob Landley <rob@...dley.net>, linux-kernel@...r.kernel.org,
	dwmw2@...radead.org
Subject: Re: make headers_install broken for ARCH=m68k in 2.6.29-rc7.

On Wed, Apr 01, 2009 at 12:57:41PM -0400, Lennart Sorensen wrote:
> On Thu, Mar 12, 2009 at 04:37:03AM -0500, Rob Landley wrote:
> > So I'm doing this:
> > 
> > make ARCH=m68k headers_install INSTALL_HDR_PATH=walrus
> > 
> > And it doesn't install unistd_mm.h which is included from asm/unistd.h.  (The 
> > file is there in arch/m68k/include/asm/unistd_mm.h, it just doesn't get 
> > installed.  So any code that #includes <asm/unistd.h> results in a file not 
> > found error for the other one, which is essentially just a wrapper.)
> > 
> > I don't understand what the code's currently doing here well enough to fix it, 
> > specifically where does this file list come from?  The file  
> > arch/m68k/include/asm/Kbuild is adding "cachectl.h" to header-y, but there are 
> > 31 files getting installed from that directory and only one in there.  If the 
> > list was just the contents of the directory, then unistd_mm.h (and 
> > unistd_no.h) would get installed, but they don't.  I could add those two to 
> > the Kbuild file after cachectl.h, but is that the _right_ fix?  Where are the 
> > other 31 identified?  (Is it getting a listing of some _other_ directory?)
> 
> I sent a patch to fix that on Feb 5th.  I guess it hasn't been put in.
> 
> It looked like this:
> 
> Signed-of-by: Len Sorensen <lsorense@...lub.uwaterloo.ca>
> 
> diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
> index 1a922fa..d477927 100644
> --- a/arch/m68k/include/asm/Kbuild
> +++ b/arch/m68k/include/asm/Kbuild
> @@ -1,2 +1,18 @@
>  include include/asm-generic/Kbuild.asm
>  header-y += cachectl.h
> +header-y += param_mm.h
> +header-y += param_no.h
> +header-y += ptrace_mm.h
> +header-y += ptrace_no.h
> +header-y += setup_mm.h
> +header-y += setup_no.h
> +header-y += sigcontext_mm.h
> +header-y += sigcontext_no.h
> +header-y += siginfo_mm.h
> +header-y += siginfo_no.h
> +header-y += signal_mm.h
> +header-y += signal_no.h
> +header-y += swab_mm.h
> +header-y += swab_no.h
> +header-y += unistd_mm.h
> +header-y += unistd_no.h

They decided to fix it by eliminating the *_{no,mm}.h files for exported headers.
The patch is already in mainline.

	Sam
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