linux-kernel - Re: module.h and moduleparam.h: more header file pedantry

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Message-ID: <20070313220517.GA5623@martell.zuzino.mipt.ru>
Date:	Wed, 14 Mar 2007 01:05:17 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	"Robert P. J. Day" <rpjday@...dspring.com>
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...ts.osdl.org
Subject: Re: module.h and moduleparam.h:  more header file pedantry

On Mon, Mar 12, 2007 at 12:59:20PM -0400, Robert P. J. Day wrote:
>   to my surprise, i learned only today that module.h includes
> moduleparam.h, which flies in the face of all of the documentation
> i've ever read which was adamant that i *had* to include moduleparam.h
> if i was using parameters. i'm guessing this comes as a surprise to
> the 400+ header files which include both unnecessarily.
>
>   so ... in a perfect world, should a module source file that doesn't
> use parameters *at all* need to include moduleparam.h?

Probably not.

> as it stands
> now, yes, it does, given some ugly inter-dependencies between the two
> files.
>
>   so, at the very least, programmers can stop including moduleparam.h,
> unless there's a cleaner way to do all that.

Regardless, of what you'll do: cross-compile test!

After aforementioned removal and adding "struct kernel_param;"

+ akmk arm-assabet -k
  CHK     include/linux/version.h
make[2]: `include/asm-arm/mach-types.h' is up to date.
  Using /home/linux/linux-irq-flags-t as source for kernel
  GEN     /home/linux/build/arm-assabet/Makefile
  CHK     include/linux/utsrelease.h
  CHK     include/linux/compile.h
  CC      arch/arm/nwfpe/fpmodule.o
arch/arm/nwfpe/fpmodule.c:179: error: syntax error before string constant
arch/arm/nwfpe/fpmodule.c:179: warning: type defaults to `int' in declaration of `__MODULE_INFO'
arch/arm/nwfpe/fpmodule.c:179: warning: function declaration isn't a prototype
arch/arm/nwfpe/fpmodule.c:179: warning: data definition has no type or storage class

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