linux-kernel - Re: [PATCH 4/5] pata: Update experimental tags

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Date:	Thu, 19 Nov 2009 20:03:09 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Alan Cox <alan@...ux.intel.com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, Jeff Garzik <jgarzik@...ox.com>
Subject: Re: [PATCH 4/5] pata: Update experimental tags

On Thursday 19 November 2009 19:38:26 Sergei Shtylyov wrote:
> Alan Cox wrote:
> 
> >>Fixed where?  I posted the patch as soon as I noticed the problem.
> 
> > Its not posted because unlike you I don't post patches as soon as I
> > notice them. I test them first. Which is why for example I discovered the
> > bug in the drivers/ide one. Did you check the vendor driver and then
> > stick 40 and 80 wire cables on the system to check the bits on a 3x2N ?
> 
> > No I didn't think so. You see if you had you'd have discovered something
> > else. You'd have discovered another bug in the old IDE one. The driver
> > code for these chips isn't reliable and doesn't work at all in some cases.
> 
> >>Told me about it?  
> 
> > Yes - or do you only write replies not read them ?
> 
> > NAK - the patch is inadequate.
> 
>     No, it was. And yours isn't quite.
> 
> > The procedure in the vendor driver does
> > appear to work on the newer chips however.
> 
> > Probably worth double checking
> > the HPT37x and seeing if it needs the same debounce delays.
> 
>     All vendor drivers I have do call StallExec(10) when detecting cable 
> type, so need to add the delay to pata_hpt37x too.

Given this I take back my ACK to Alan's patch.

>     I'd suggest to address the delay by another, separate patch to both 
> pata_hpt37x and pata_hpt3x2n drivers, and accept Bart's original patch for 
> bit reversing...

Yes.

-- 
Bartlomiej Zolnierkiewicz
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