From: Christoph Hellwig <hch@infradead.org>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: David Mosberger-Tang <davidm@hpl.hp.com>,
linux-ia64@linuxia64.org, linux-kernel@vger.kernel.org
Subject: Re: GCC nested functions?
Date: Wed, 12 May 2004 19:04:54 +0100 [thread overview]
Message-ID: <20040512190454.A31410@infradead.org> (raw)
In-Reply-To: <20040512105924.54a8211b@dell_ss3.pdx.osdl.net>; from shemminger@osdl.org on Wed, May 12, 2004 at 10:59:24AM -0700
On Wed, May 12, 2004 at 10:59:24AM -0700, Stephen Hemminger wrote:
> Redoing it as separate functions is easy enough, but the questions are:
> - Are gcc nested functions allowed in the kernel? If not where should
> this restriction be put in Documentation? CodingStyles?
nested function are a horrible gcc misfeature. So far people had enough
taste to not introduce them without explicitly forbidding it ;-)
Maybe we should add a section to Documentation/CodingStyles that says
which gcc extensions are okay for kernel use.
> - Or is gcc on ia64 just too stupid? or do some more support routines
> need to exist in arch/ia64?
> - Do other architectures (sparc, ppc) have similar problems?
There's a few architectures needing libgcc help for trampolines, but I
don't remember which ones exactly.
next prev parent reply other threads:[~2004-05-12 18:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-12 17:59 Stephen Hemminger
2004-05-12 18:04 ` Christoph Hellwig [this message]
2004-05-13 0:07 ` Mitchell Blank Jr
2004-05-12 18:11 ` William Lee Irwin III
2004-05-12 18:13 ` David Mosberger
2004-05-12 19:30 ` viro
2004-05-12 19:34 ` Gabriel Paubert
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