linux-kernel - Re: [patch 5/7] make netfilter use strict integer types

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Message-ID: <49A5DECD.7090809@zytor.com>
Date:	Wed, 25 Feb 2009 16:14:05 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jan Engelhardt <jengelh@...ozas.de>
CC:	arnd@...db.de, Sam Ravnborg <sam@...nborg.org>,
	Kyle McMartin <kyle@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Jaswinder Singh Rajput <jaswinderrajput@...il.com>,
	mingo@...hat.com, dwmw2@...radead.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org
Subject: Re: [patch 5/7] make netfilter use strict integer types

Jan Engelhardt wrote:
> 
> I _strongly disagree_ with this move. Userspace also has the uintX
> types via <stdint.h>/<cstdint>, and now you are adding a dependency
> on linux/types.h, not to mention that your step can lead to compile
> time piling up.
> 
> IMHO, __uXX should be replaced by uintX_t, but a move this great I
> will leave to future generations because there is just too much
> persisting opinions wrt. such proposal. As such I'd like to join
> and persist on my position and that uintX that we have should be kept.
> 

We *CAN'T* replace __uXX with uintX_t.  Period, full stop, end of story. 
  It isn't possible to do universally, and doing it non-universally is 
just silly.  Nor is it likely that this adds anything to the compile 
time, since most realistic programs will have a dependency on 
<linux/types.h> through some indirect path.

Now, I have to say I'd personally would prefer if make headers_install 
did this transformation mechanically for the common integer types, 
instead of requiring it to have the source code formatted in a specific 
fashion.

	-hpa
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