linux-kernel - Re: lots of code could be simplified by using ARRAY

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Date:	Sun, 17 Dec 2006 13:25:16 -0500 (EST)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
cc:	Tim Schmielau <tim@...sik3.uni-rostock.de>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Zach Brown <zach.brown@...cle.com>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: lots of code could be simplified by using ARRAY_SIZE()

On Sun, 17 Dec 2006, Randy Dunlap wrote:

> On Sun, 17 Dec 2006 13:13:59 -0500 (EST) Robert P. J. Day wrote:
>
> >
> >   so here's the end result of my experiment to replace unnecessary
> > code snippets with an invocation of the ARRAY_SIZE() macro from
> > include/linux/kernel.h.  i've attached the script that i ran on the
> > entire tree, then (after adding al viro's connector patch), did:
> >
> >   $ make allyesconfig	# for the stress factor
> >   $ make
> >
> > to see what would happen.
> >
> >   amazingly, the compile worked all the way down to:
> >
> >   AS      arch/i386/boot/bootsect.o
> >   LD      arch/i386/boot/bootsect
> >   AS      arch/i386/boot/setup.o
> >   LD      arch/i386/boot/setup
> >   AS      arch/i386/boot/compressed/head.o
> >   CC      arch/i386/boot/compressed/misc.o
> >   OBJCOPY arch/i386/boot/compressed/vmlinux.bin
> >   HOSTCC  arch/i386/boot/compressed/relocs
> > arch/i386/boot/compressed/relocs.c: In function 'sym_type':
> > arch/i386/boot/compressed/relocs.c:72: warning: implicit declaration of function 'ARRAY_SIZE'
>
> That's a userspace program and shouldn't use kernel.h.

ah, quite right, my bad.  eggnog hangover.

rday
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