linux-kernel - Re: [PATCH 31/33] Fusion: sg chaining support

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Message-ID: <20070716132504.GS5195@kernel.dk>
Date:	Mon, 16 Jul 2007 15:25:05 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	FUJITA Tomonori <tomof@....org>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	Eric.Moore@....com, fujita.tomonori@....ntt.co.jp
Subject: Re: [PATCH 31/33] Fusion: sg chaining support

On Mon, Jul 16 2007, FUJITA Tomonori wrote:
> From: Jens Axboe <jens.axboe@...cle.com>
> Subject: [PATCH 31/33] Fusion: sg chaining support
> Date: Mon, 16 Jul 2007 11:47:45 +0200
> 
> > Cc: Eric.Moore@....com
> > Signed-off-by: Jens Axboe <jens.axboe@...cle.com>
> > ---
> >  drivers/message/fusion/mptscsih.c |    4 ++--
> >  1 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
> > index d356173..f087249 100644
> > --- a/drivers/message/fusion/mptscsih.c
> > +++ b/drivers/message/fusion/mptscsih.c
> > @@ -297,7 +297,7 @@ nextSGEset:
> >  		v2 = sg_dma_address(sg);
> >  		mptscsih_add_sge(psge, sgflags | thisxfer, v2);
> >  
> > -		sg++;		/* Get next SG element from the OS */
> > +		sg = sg_next(sg);	/* Get next SG element from the OS */
> >  		psge += (sizeof(u32) + sizeof(dma_addr_t));
> >  		sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
> >  		sg_done++;
> > @@ -318,7 +318,7 @@ nextSGEset:
> >  		v2 = sg_dma_address(sg);
> >  		mptscsih_add_sge(psge, sgflags | thisxfer, v2);
> >  		/*
> > -		sg++;
> > +		sg = sg_next(sg);
> >  		psge += (sizeof(u32) + sizeof(dma_addr_t));
> >  		*/
> >  		sgeOffset += (sizeof(u32) + sizeof(dma_addr_t));
> > -- 
> 
> We also need this change?
> 
> diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
> index f087249..a3e6170 100644
> --- a/drivers/message/fusion/mptscsih.c
> +++ b/drivers/message/fusion/mptscsih.c
> @@ -289,7 +289,7 @@ nextSGEset:
>  	for (ii=0; ii < (numSgeThisFrame-1); ii++) {
>  		thisxfer = sg_dma_len(sg);
>  		if (thisxfer == 0) {
> -			sg ++; /* Get next SG element from the OS */
> +			sg = sg_next(sg); /* Get next SG element from the OS */
>  			sg_done++;
>  			continue;
>  		}

Indeed we do, thanks for spotting that. Applied.

-- 
Jens Axboe

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