From: David Woodhouse <dwmw2@infradead.org>
To: Richard Henderson <rth@twiddle.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org, davem@vger.kernel.org
Subject: Re: [module-init-tools] fix weak symbol handling
Date: Fri, 17 Jan 2003 07:34:14 +0000 [thread overview]
Message-ID: <30299.1042788854@passion.cambridge.redhat.com> (raw)
In-Reply-To: <20030116180913.C15981@twiddle.net>
rth@twiddle.net said:
> > > No. The semantics I need is if A references a weak symbol S
> > > and *no one* implements it, then S resolves to NULL.
> >
> > Sorry, I was unclear. I want to know the dependency semantics:
>
> If B exports S, should depmod believe A needs B, or not? Your patch
> leaves that semantic (all it does is suppress the errors).
> Well, that depends on whether A defines S or not. If A does define S,
> then I don't care. I'd say "no", A does not depend on B. If A does
> not define S, then most definitely "yes", as with any other
> definition.
As long as doing so doesn't make modprobe fail to load A when B isn't
present or refuses to load. Otherwise what was the point in making it weak?
--
dwmw2
next prev parent reply other threads:[~2003-01-17 7:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-13 19:04 [module-init-tools] fix weak symbol handling Richard Henderson
2003-01-14 3:16 ` Rusty Russell
2003-01-15 1:14 ` Richard Henderson
2003-01-17 1:57 ` Rusty Russell
2003-01-17 2:09 ` Richard Henderson
2003-01-17 7:34 ` David Woodhouse [this message]
2003-01-17 8:56 ` Rusty Russell
2003-01-17 9:32 ` David Woodhouse
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