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Date:	Thu, 07 Aug 2014 15:07:23 +0200
From:	Hannes Reinecke <hare@...e.de>
To:	Nick Krause <xerofoiify@...il.com>,
	Matthew Wilcox <matthew@....cx>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	"open list:LSILOGIC/SYMBIOS/..." <linux-scsi@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] scsi: Check if WSR already defined

On 08/07/2014 07:38 AM, Nick Krause wrote:
> On xtensa arch there is this warning
>
> drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined [enabled by default]
> arch/xtensa/include/asm/processor.h:188:0: note: this is the location of the previous definition
>
> I can remove WSR since it is not being used but more documentation purpose, so
> undefining is enough.
>
> Signed-off-by: Nick Krause <xerofoify@...il.com>
> ---
>   drivers/scsi/sym53c8xx_2/sym_defs.h | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/drivers/scsi/sym53c8xx_2/sym_defs.h b/drivers/scsi/sym53c8xx_2/sym_defs.h
> index defccc4..68334a5 100644
> --- a/drivers/scsi/sym53c8xx_2/sym_defs.h
> +++ b/drivers/scsi/sym53c8xx_2/sym_defs.h
> @@ -91,6 +91,10 @@ struct sym_chip {
>   #define FE_CACHE0_SET	(FE_CACHE_SET & ~FE_ERL)
>   };
>
> +#ifdef WSR
> +#undef WSR
> +#endif
> +
>   /*
>    *	SYM53C8XX IO register data structure.
>    */
>
Ouch.
Certainly not. Who knows for which odd function the 'WSR' definition 
is used.
Better to redefine WSR in sym_defs.h.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@...e.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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