linux-kernel - Re: [PATCH][trivial] mm/pagewalk.c break const constraint.

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Date:	Sat, 19 Apr 2008 11:34:24 +0200
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com>
Cc:	"Matt Mackall" <mpm@...enic.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>
Subject: Re: [PATCH][trivial] mm/pagewalk.c break const constraint.

On Sat, Apr 19, 2008 at 11:26 AM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
> patch against 2.6.25
>
>  when compile 2.6.25, following warnings was outputed.
>
>   CC      mm/pagewalk.o
>  mm/pagewalk.c: In function 'walk_page_range':
>  mm/pagewalk.c:111: warning: passing argument 1 of 'pgd_offset' discards qualifiers from p\
>  ointer target type
>
>  mm argument of walk_page_range() is unnecessary const restriction.
>  this patch is no functional change. it's only remove warning.

Is this ia64 or cris? I think the correct way to resolve this is to
make pgd_offset() take a const struct mm_struct * instead.

Vegard


-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036
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