Re: [PATCH] machine-ops for SH arch

[Mike F. <va...@ge...>]

On Friday 03 August 2007, Paul Mundt wrote:
> On Thu, Aug 02, 2007 at 11:56:49PM -0400, Mike Frysinger wrote:
> > On Thursday 02 August 2007, Adrian McMenamin wrote:
> > > This patch adds a set machine-ops callbacks
> >
> > what is the advantage here over using weaks ?  seems like weaks would be
> > simpler and better because you could cull the default ones at link time
> > if a board provided its own ...
>
> Multiple machine support, basically. Weak symbols won't work for the case
> where multiple boards are linked in to the same image. We can have
> multiple machvecs packed in at once and simply discard the ones we don't
> care about at boot time (as per arch/sh/kernel/machvec.c).

ah, i'd forgotten about that aspect ... is that the only upside ?  i'm=20
debating doing this in Blackfin and at the moment i'd just use weaks since =
we=20
have no infrastructure to do multiple board support and we dont have plans =
to=20
add it anytime soon ...
=2Dmike