linux-kernel - Re: [uml-devel] [PATCH 2/5] uml: Drop private round

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Date:	Tue, 20 Apr 2010 12:52:25 -0400
From:	Jeff Dike <jdike@...toit.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Amerigo Wang <xiyou.wangcong@...il.com>,
	Jan Kiszka <jan.kiszka@....de>, linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net
Subject: Re: [uml-devel] [PATCH 2/5] uml: Drop private round_down definition

On Tue, Apr 20, 2010 at 04:35:52PM +0200, Jiri Kosina wrote:
> On Tue, 20 Apr 2010, Amerigo Wang wrote:
> > Shouldn't this signal.c #include <linux/kernel.h>?
> 
> Well, it gets included implicitly through uaccess.h -> sched.h -> 
> kernel.h.

You're depending on the internal details of uaccess.h and sched.h.  If
either of them changed, then this would cause unexpected compile
failures here.

Better to explicitly include kernel.h.

				Jeff

-- 
Work email - jdike at linux dot intel dot com
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