Re: what is the value of the macro "__setup_param"?

From: Paul Mundt
Date: Fri Aug 24 2007 - 06:03:49 EST


On Fri, Aug 24, 2007 at 05:49:42AM -0400, Robert P. J. Day wrote:
> On Fri, 24 Aug 2007, Paul Mundt wrote:
>
> > On Fri, Aug 24, 2007 at 05:19:29AM -0400, Robert P. J. Day wrote:
> > >
> > > perhaps i'm missing it, but it seems that the macro __setup_param is
> > > entirely superfluous:
> > >
> > > $ grep -rw __setup_param *
> > > include/linux/init.h:#define __setup_param(str, unique_id, fn, early) \
> > > include/linux/init.h: __setup_param(str, unique_id, NULL, 0)
> > > include/linux/init.h: __setup_param(str, fn, fn, 0)
> > > include/linux/init.h: __setup_param(str, fn, fn, 1)
> > > include/linux/init.h:#define __setup_param(str, unique_id, fn) /* nothing */
> > > $
> > >
> > > or am i must misreading something badly?
>
> > Superfluous how? It does different things depending on whether
> > MODULE is defined or not. It's a good indicator of how often people
> > use __setup_param() from module context though, given the complete
> > mismatch of parameters. It's probably worth fixing that up at least.
>
> never mind, i've already clued in. up too long, and trying to do too
> many things at once. more sleep or more coffee -- time to make a
> decision. sorry for the noise.
>
That's great, but you've ignored the second part of my mail. I'll
summarize:

> > > include/linux/init.h:#define __setup_param(str, unique_id, fn, early) \
> > > include/linux/init.h:#define __setup_param(str, unique_id, fn) /* nothing */

Notice the problem now? :-)
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