linux-kernel - Re: [PATCH] make checkpatch warn about access to current->comm

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Message-ID: <20090127060943.GD5034@bombadil.infradead.org>
Date:	Tue, 27 Jan 2009 01:09:43 -0500
From:	Kyle McMartin <kyle@...radead.org>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Kyle McMartin <kyle@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Bartelmus <lirc@...telmus.de>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>
Subject: Re: [PATCH] make checkpatch warn about access to current->comm

On Tue, Jan 27, 2009 at 02:58:51PM +0900, KOSAKI Motohiro wrote:
> > On Tue, Jan 27, 2009 at 02:50:18PM +0900, KOSAKI Motohiro wrote:
> > > I think "char tcomm[sizeof(current->comm)];" is valid code.
> > > if checkpatch.pl don't warn "sizeof(current->comm)", I'm glad.
> > 
> > Awfully interesting way of writing TASK_COMM_LEN :)
> 
> I don't think so awfully.
> I think "sizeof(array_val)" is typical code in kernel.
> 
> I agree that we can rewrite s/tcomm[sizeof(current->comm)]/char tcomm[TASK_COMM_LEN]/.
> but it's annoyed.
> 

If current->comm was changed to be kmalloc'd this would need to be
changed anyway, so why not just do it now?

regards, Kyle
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