From: Christoph Hellwig <hch@infradead.org>
To: Jon Smirl <jonsmirl@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: getting rid of inter_module_xx
Date: Sat, 23 Oct 2004 10:44:13 +0100 [thread overview]
Message-ID: <20041023094413.GA30137@infradead.org> (raw)
In-Reply-To: <9e473391041022100835da7baf@mail.gmail.com>
On Fri, Oct 22, 2004 at 01:08:08PM -0400, Jon Smirl wrote:
> I'm looking at getting rid of DRM's use of inter_module_xx. DRM makes
> use of this to locate and use the AGP module. AGP is an optional
> module since some system only have PCI graphics.
>
> Right now DRM uses inter_module_get("AGP") to locate the module if it
> exists. It then changes behavior if this call secedes or fails.
>
> If I remove inter_module_get("AGP") and use the symbols directly, such
> as agp_backend_acquire(), how do I resolve the symbol link when AGP is
> not loaded? If the symbols link as NULL DRM will see that and act
> correctly.
not at all. Everything else in the kernel is compile-time depencies.
Just make the agp backend module mandatory if CONFIG_AGP is set, you'll
lose tons of complexity at a minimum amount of used memory, and as an
added benefit look like the rest of the kernel.
next prev parent reply other threads:[~2004-10-23 9:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-22 17:08 getting rid of inter_module_xx Jon Smirl
2004-10-23 9:44 ` Christoph Hellwig [this message]
2004-10-24 16:27 ` Alan Cox
2004-11-28 22:06 ` Rusty Russell
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