linux-kernel - RE: [PATCH 11/12] unicore32 machine related files: ps2 driver

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Date:	Sat, 26 Feb 2011 20:36:16 +0800
From:	"Guan Xuetao" <gxt@...c.pku.edu.cn>
To:	"'Arnd Bergmann'" <arnd@...db.de>
Cc:	<dmitry.torokhov@...il.com>, <linux-kernel@...r.kernel.org>,
	<linux-arch@...r.kernel.org>, "'Greg KH'" <greg@...ah.com>
Subject: RE: [PATCH 11/12] unicore32 machine related files: ps2 driver



> -----Original Message-----
> From: Arnd Bergmann [mailto:arnd@...db.de]
> Sent: Wednesday, February 23, 2011 1:12 AM
> To: Guan Xuetao
> Cc: dmitry.torokhov@...il.com; linux-kernel@...r.kernel.org; linux-arch@...r.kernel.org; 'Greg KH'
> Subject: Re: [PATCH 11/12] unicore32 machine related files: ps2 driver
> 
> On Tuesday 22 February 2011, Guan Xuetao wrote:
> > diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
> > index 2cdd872..9350843 100644
> > --- a/drivers/input/serio/i8042-unicore32io.h
> > +++ b/drivers/input/serio/i8042-unicore32io.h
> > @@ -29,11 +29,11 @@
> >  /*
> >   * Register numbers.
> >   */
> > -#define I8042_COMMAND_REG      ((volatile void __iomem *)&PS2_COMMAND)
> > -#define I8042_STATUS_REG       ((volatile void __iomem *)&PS2_STATUS)
> > -#define I8042_DATA_REG         ((volatile void __iomem *)&PS2_DATA)
> > +#define I8042_COMMAND_REG      PS2_COMMAND
> > +#define I8042_STATUS_REG       PS2_STATUS
> > +#define I8042_DATA_REG         PS2_DATA
> 
> I wouldn't bother defining two sets of macros then. Either use PS2_COMMAND
> in the driver, or define I8042_COMMAND_REG in the place where you currently
> define PS2_COMMAND.
All I8042_*_REGs are explicitly defined in i8042-*io.h files.
And I want to reserve the original register names in unicore32 namespace.
> 
> Aside from this, it looks good.
> 
> 	Arnd
Thanks & Regards.
Guan Xuetao

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