From: David Woodhouse <dwmw2@redhat.com>
To: Dave Airlie <airlied@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
Christoph Hellwig <hch@lst.de>,
Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
adaplas@pol.net,
lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] kill symbol_get & friends
Date: Thu, 13 Jan 2005 08:42:59 +0000 [thread overview]
Message-ID: <1105605779.30759.76.camel@baythorne.infradead.org> (raw)
In-Reply-To: <21d7e997050112165935b89a27@mail.gmail.com>
On Thu, 2005-01-13 at 11:59 +1100, Dave Airlie wrote:
> what weak symbol support? can I actually use gcc weak symbols and have
> it all work?
Weak undefined symbols used to work, certainly. The MTD code used them
for a while, before kaos imposed the inter_module_crap on it despite my
objections.
> what happens if the module goes away?
If another module is using a weak symbol, IIRC the module providing the
symbol _can't_ go away. I could be wrong -- I didn't use that
functionality. I was using get_symbol() and I added put_symbol() so I
could explicitly refcount it.
--
dwmw2
next prev parent reply other threads:[~2005-01-13 8:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-12 20:31 Christoph Hellwig
2005-01-13 0:19 ` Rusty Russell
2005-01-13 0:59 ` Dave Airlie
2005-01-13 2:25 ` Rusty Russell
2005-01-13 8:42 ` David Woodhouse [this message]
2005-01-13 4:18 ` Dave Jones
2005-01-13 8:45 ` David Woodhouse
2005-01-13 17:05 ` Christoph Hellwig
2005-01-14 6:56 ` Rusty Russell
2005-01-16 20:46 ` Richard Purdie
2005-01-17 2:47 ` Rusty Russell
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