linux-kernel - Re: [PATCH] PNP: make the resource type an unsigned long

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Message-ID: <489D2A2F.7060206@zytor.com>
Date:	Fri, 08 Aug 2008 22:25:03 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Rene Herman <rene.herman@...access.nl>
CC:	Bjorn Helgaas <bjorn.helgaas@...com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [PATCH] PNP: make the resource type an unsigned long

Rene Herman wrote:
>>
>> Seems a bit pointless ... either one of those flags is >= 32 bits, in 
>> which case we need u64, or it's not, in which case there is no reason 
>> to burden the output with bits we don't need.
> 
> Yes, it's a not a functional patch -- only a type-consistency one. Right 
> now we're mixing ints (signed ones even) and unsigned longs and while in 
> this case that's not a functional problem it's messy and inconsistent.
> 
> I agree (as Andrew said earlier as well) that the struct resource flags 
> member should probably just be a u32 but it's not. Changing that would 
> be a bigger change than just a simple conistency thing.
> 

You're going in the wrong direction for consistency.  long is different 
on 32 and 64 bits, and really should be avoided unless that is intended.

	-hpa
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