linux-kernel - Re: [IDE] Fix build bug

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Message-ID: <20071025160529.GB24621@linux-mips.org>
Date:	Thu, 25 Oct 2007 17:05:29 +0100
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	"Maciej W. Rozycki" <macro@...ux-mips.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-mips@...ux-mips.org
Subject: Re: [IDE] Fix build bug

On Thu, Oct 25, 2007 at 03:47:16PM +0100, Maciej W. Rozycki wrote:

> > So we can avoid this if we invent a __constinitdata tag that uses
> > a new section?
> 
>  That would do.
> 
> > I ask mainly to understand this error - not that I am that found
> > of the idea.
> 
>  Somebody wants to mix up read-only and read/write data in the same 
> section and GCC quite legitimately complains about it.  You cannot have 
> both at a time.

My interpretation is that it would be perfectly ok for a C compiler to
do minimal handling of const by only throwing errors for attempted
assignments to const objects but otherwise treating them as if they
were non-const, that is for example putting them into an r/w section.

  Ralf
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