linux-kernel - Re: [PATCH] headerdep: a tool for detecting inclusion cycles in header file

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Message-ID: <19f34abd0804260825p4690e4ncdd9a96398f8662d@mail.gmail.com>
Date:	Sat, 26 Apr 2008 17:25:39 +0200
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"Adrian Bunk" <bunk@...nel.org>
Cc:	"Sam Ravnborg" <sam@...nborg.org>,
	"Pekka Enberg" <penberg@...helsinki.fi>,
	linux-kbuild@...r.kernel.org, kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] headerdep: a tool for detecting inclusion cycles in header file

On 4/26/08, Adrian Bunk <bunk@...nel.org> wrote:
> On Sat, Apr 26, 2008 at 03:45:54PM +0200, Vegard Nossum wrote:
>  > Hi Sam,
>  >
>  > Maybe something like this could be useful for cleaning up headers (and
>  > maintaining that cleanliness once it has been achieved). What do you think?
>  >
>  > (One thing which might or might not be good is that 'make headerdep' will
>  >  also compile using CC if they're not already compiled. If this should be
>  >  fixed, I think you'd know how to do it.)
>
>
> This way you only catch problems in the current kernel configuration.
>
>  The only problems are under include/, and you should be able to do this
>  by parsing all headers and without hooking into the build system.

This seems correct. Then a solution similar to 'make headers_check'
should be used.

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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