Re: [PATCH] export ia64_max_cacheline_size

From: Andrew Morton
Date: Fri Nov 04 2005 - 19:05:47 EST


Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> On Fri, Nov 04, 2005 at 02:55:34PM -0800, Andrew Morton wrote:
> > > Can we please move dma_get_cache_alignment() out of line instead?
> >
> > It's a single statement! It wants to be inlined.
> >
> > > Always export sane APIs instead of random internals.
> >
> > The exported API is dma_get_cache_alignment(). For internal implementation
> > reasons we need to export an ia64 symbol to modules to support it. That
> > kinda sucks, but I don't think that we need to compromise kernel size and
> > performance because of it.
>
> It's an API used only in slow pathes. It's much better to enforce modularity
> in that case.

hm, spose so. Putting it into .c means that all arches except one
implement it under include/, which is also a bit irritating sometimes, such
as $EDITOR include/asm-*/dma-mapping.h.

It's a 51%/49% decision, but I'm not sure which way.
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