linux-kernel - RE: [PATCH 3/4] iovmm: replace __iounmap with omap

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Message-ID: <496565EC904933469F292DDA3F1663E602F47B37F4@dlee06.ent.ti.com>
Date:	Thu, 14 Oct 2010 11:11:50 -0500
From:	"Guzman Lugo, Fernando" <fernando.lugo@...com>
To:	Hiroshi DOYU <Hiroshi.DOYU@...ia.com>
CC:	"felipe.contreras@...ia.com" <felipe.contreras@...ia.com>,
	"tony@...mide.com" <tony@...mide.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>
Subject: RE: [PATCH 3/4] iovmm: replace __iounmap with omap_iounmap

 

> -----Original Message-----
> From: Hiroshi DOYU [mailto:Hiroshi.DOYU@...ia.com] 
> Sent: Thursday, October 14, 2010 4:47 AM
> To: Guzman Lugo, Fernando
> Cc: felipe.contreras@...ia.com; tony@...mide.com; 
> linux-kernel@...r.kernel.org; andy.shevchenko@...il.com; 
> linux-omap@...r.kernel.org
> Subject: Re: [PATCH 3/4] iovmm: replace __iounmap with omap_iounmap
> 
> From: "ext Guzman Lugo, Fernando" <fernando.lugo@...com>
> Subject: RE: [PATCH 3/4] iovmm: replace __iounmap with omap_iounmap
> Date: Thu, 14 Oct 2010 10:18:30 +0200
> 
> > 
> >> ________________________________________
> >> From: Hiroshi DOYU [Hiroshi.DOYU@...ia.com]
> >> Sent: Thursday, October 14, 2010 1:45 AM
> >> To: Guzman Lugo, Fernando
> >> Cc: felipe.contreras@...ia.com; tony@...mide.com;  
> >> linux-kernel@...r.kernel.org; andy.shevchenko@...il.com; 
> >> linux-omap@...r.kernel.org
> >> Subject: Re: [PATCH 3/4] iovmm: replace __iounmap with omap_iounmap
> >> 
> >> Hi Fernando,
> >> 
> >> From: ext Fernando Guzman Lugo <x0095840@...com>
> >> Subject: [PATCH 3/4] iovmm: replace __iounmap with omap_iounmap
> >> Date: Thu, 14 Oct 2010 04:27:36 +0200
> >> 
> >> > Omap platform is omap_iounmap function.
> >> >
> >> > Signed-off-by: Fernando Guzman Lugo <x0095840@...com>
> >> > ---
> >> >  arch/arm/plat-omap/iovmm.c |    2 +-
> >> >  1 files changed, 1 insertions(+), 1 deletions(-)
> >> >
> >> > diff --git a/arch/arm/plat-omap/iovmm.c 
> >> > b/arch/arm/plat-omap/iovmm.c index 93a34d9..5489ca9 100644
> >> > --- a/arch/arm/plat-omap/iovmm.c
> >> > +++ b/arch/arm/plat-omap/iovmm.c
> >> > @@ -821,7 +821,7 @@ void iommu_kunmap(struct iommu *obj, u32 da)
> >> >       struct sg_table *sgt;
> >> >       typedef void (*func_t)(const void *);
> >> >
> >> > -     sgt = unmap_vm_area(obj, da, (func_t)__iounmap,
> >> 
> >> +       sgt = unmap_vm_area(obj, da, (func_t)iounmap,
> >> 
> >> Woundn't the above be enough?
> >> 
> >> Eventually this "iounmap()" calls "__arch_iounmap()" -> 
> >> "omap_iounmap()". I don't see any special reason to call 
> >> "omap_iounmap()" here for now.
> > 
> > iounmap and __arch_iounmap are macros they cannot not be 
> used there. 
> > If so, it gives a "undeclared" compile error.
> 
> Ok. I'll add this explanation as a note on this commit.
> 

Sure, Thanks.

Regards,
Fernando.

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