linux-kernel - Re: [PATCH 0/4] initramfs: remove sparse warnings

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Date:	Fri, 20 Aug 2010 01:57:51 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] initramfs: remove sparse warnings

2010-08-19 (목), 16:38 +0200, Arnd Bergmann:
> On Thursday 19 August 2010, Namhyung Kim wrote:
> > This patchset removes most of sparse warnings in init/initramfs.c.
> > Current implementation of initramfs relies on syscall service rountins heavily
> > so it requires many of arguments to be __user address space pointers but, in
> > most cases, were missing proper markups. This patchset tries to fix those at
> > a minimum change.
> 
> I'm skeptical about this, you are adding obviously incorrect annotations
> to the code to make something work that was written without the awareness
> for address spaces.
> 
> A better way would be to call path_lookup or kern_path to look up the
> path and pass that to a lower-level file I/O function.
> 
> 	Arnd

Thanks for the comment. Then I'll try to refactor/reimplement initramfs
code based on your suggestion.

-- 
Regards,
Namhyung Kim


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