linux-kernel - Re: [PATCH 2.6.18-rc4 1/5] ieee1394: sbp2: workaround for write protect bit of Initio firmware

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Message-ID: <20060828092429.GA8980@infradead.org>
Date:	Mon, 28 Aug 2006 10:24:29 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Ben Collins <bcollins@...ntu.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.18-rc4 1/5] ieee1394: sbp2: workaround for write protect bit of Initio firmware

On Sun, Aug 27, 2006 at 01:17:31PM -0700, Linus Torvalds wrote:
> 
> 
> On Sun, 27 Aug 2006, Stefan Richter wrote:
> >
> > Yet another mode pages related bug of Initio firmwares was seen.
> > INIC-1530 with a firmware by Initio responded with garbage to MODE SENSE
> > (10).  Some HDDs were therefore incorrectly marked as write protected:
> > http://bugzilla.kernel.org/show_bug.cgi?id=6947
> 
> Why does sbp2scsi_slave_configure() set "use_10_for_ms" in the first 
> place?

I suspect that's because the typical command set for ieee1394 devices is
RBC which only specifies the 10-byte commands.

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