Re: [PATCH RFC] ARM: option for loading modules into vmalloc area

From: Nicolas Pitre
Date: Wed Nov 19 2014 - 11:59:26 EST

On Wed, 19 Nov 2014, Russell King - ARM Linux wrote:

> On Wed, Nov 19, 2014 at 05:38:57PM +0100, Ard Biesheuvel wrote:
> > Numbers are disambiguated by the f and b suffixes, so they can be
> > reused in the same .s file. So as long as you use a strictly numerical
> > prefix, you can deal correctly with the case where, for instance,
> > do_div() is called twice in the same compilation unit, and still not
> > clash with other inline asm
> What's not particularly nice though is to hide these in a macro,
> which itself may be part of a larger macro or code fragment also
> using small numbers.
> We probably ought to be a bit more inteligent about how we choose
> these numbers inside macros, rather than just randomly picking some
> and hoping that they don't clash.

Maybe in this case, the macro content is so simple that labels are not
warranted? Getting away without them certainly solves the issue.

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