Re: [PATCH 1/5] omap2/3/4: mailbox: remove compiler warning

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* Anna, Suman <s-anna@xxxxxx> [100222 13:41]:
> Tony,
> 
> 
> > -----Original Message-----
> > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx]
> > Sent: Monday, February 22, 2010 3:37 PM
> > To: Anna, Suman
> > Cc: Shilimkar, Santosh; linux-omap@xxxxxxxxxxxxxxx;
> > Hiroshi.DOYU@xxxxxxxxx; Clark, Rob; Kanigeri, Hari; C.A, Subramaniam
> > Subject: Re: [PATCH 1/5] omap2/3/4: mailbox: remove compiler warning
> > 
> > * Anna, Suman <s-anna@xxxxxx> [100222 11:53]:
> > > Hi Santosh,
> > >
> > > > -----Original Message-----
> > > > From: Shilimkar, Santosh
> > > > Sent: Saturday, February 20, 2010 12:47 PM
> > > > To: Anna, Suman; linux-omap@xxxxxxxxxxxxxxx
> > > > Cc: Hiroshi.DOYU@xxxxxxxxx; Clark, Rob; Kanigeri, Hari; C.A,
> > Subramaniam
> > > > Subject: RE: [PATCH 1/5] omap2/3/4: mailbox: remove compiler warning
> > > >
> > > > > -----Original Message-----
> > > > > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
> > > > owner@xxxxxxxxxxxxxxx] On Behalf Of Anna,
> > > > > Suman
> > > > > Sent: Friday, February 19, 2010 2:37 AM
> > > > > To: linux-omap@xxxxxxxxxxxxxxx
> > > > > Cc: Hiroshi.DOYU@xxxxxxxxx; Clark, Rob; Kanigeri, Hari; C.A,
> > Subramaniam
> > > > > Subject: [PATCH 1/5] omap2/3/4: mailbox: remove compiler warning
> > > > >
> > > > > From 78d00b562548e1d95ad12a4d8121be67950daf68 Mon Sep 17 00:00:00
> > 2001
> > > > > From: Suman Anna <s-anna@xxxxxx>
> > > > > Date: Mon, 25 Jan 2010 18:27:21 -0600
> > > > > Subject: [PATCH 1/5] omap2/3/4: mailbox: remove compiler warning
> > > > >
> > > > > Remove a compiler warning in device-specific
> > > > > mailbox module.
> > > > >
> > > > > Signed-off-by: Suman Anna <s-anna@xxxxxx>
> > > > > ---
> > > > >  arch/arm/mach-omap2/mailbox.c |    2 ++
> > > > >  1 files changed, 2 insertions(+), 0 deletions(-)
> > > > >
> > > > > diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-
> > > > omap2/mailbox.c
> > > > > index 2c9fd1c..c970cf6 100644
> > > > > --- a/arch/arm/mach-omap2/mailbox.c
> > > > > +++ b/arch/arm/mach-omap2/mailbox.c
> > > > > @@ -419,8 +419,10 @@ static int __devinit omap2_mbox_probe(struct
> > > > platform_device *pdev)
> > > > >  #endif
> > > > >  	return 0;
> > > > >
> > > > > +#if defined(CONFIG_ARCH_OMAP2420) /* IVA */
> > > > >  err_iva1:
> > > > >  	omap_mbox_unregister(&mbox_dsp_info);
> > > > > +#endif
> > > > Can't we avoid the #ifdef here? Is this "omap_mbox_unregister" omap2
> > > > specific?
> > >
> > > Yes, this #ifdef is specific to 2420. There are other places in the
> > mailbox code which also utilize a similar #ifdef. I have merely added it
> > to remove the compile warning. I think it needs a separate patch to remove
> > all the 2420 specific #ifdefs.
> > 
> 
> 
> > Let's drop this patch for now. We should fix this with something like
> > this in mailbox.h:
> > 
> > #ifdef CONFIG_ARCH_OMAP2420
> > int omap_mbox_unregister(struct omap_mbox *);
> > #else
> > static inline int omap_mbox_unregister(struct omap_mbox *mbox)
> > {
> > 	return 0;
> > }
> > #endif
> > 
> > That way we can get rid of the ifdefs in other places too.
> > 
> > Tony
> 
> Sorry, my statement is a little bit misleading. The omap_mbox_unregister function itself is not specific to 2420, but rather the call is. It should be called only for 2420, and hence the #ifdef. 

OK, maybe you can update to just test for if (cpu_is_omap2420())
there?

Tony
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