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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Robert Hancock <hancockr@shaw.ca>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, jeff@garzik.org
Subject: Re: [PATCH] libata_acpi: A different strategy for using ACPI information
Date: Wed, 4 Jul 2007 10:49:54 +0100	[thread overview]
Message-ID: <20070704104954.16812248@the-village.bc.nu> (raw)
In-Reply-To: <468AE196.9070202@shaw.ca>

> Looks fairly reasonable to me. However, I suspect any use of _GTM is 
> somewhat dangerous (at least after the resume) unless we use the _STM 
> and _GTF methods in the proper sequence when resuming. (Is that in the 
> -mm tree now?)

Yes - and we only use it in these drivers to check for cable evidence not
for anything more serious.

> speed we give it is valid, since there is no sane way for the function 
> to indicate failure. (Thus the problem with the "cram in all possible 
> values to see what it supports" strategy for determining mode limits..)

The spec I have says it'll hand back the mode it actually uses which is
effectively a solution for 'failure'

  reply	other threads:[~2007-07-04  9:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.rEwk8NvbygVfpOfb23QZ97ZMeXs@ifi.uio.no>
2007-07-03 23:53 ` [PATCH] libata_acpi: A different strategy for using ACPI information Robert Hancock
2007-07-04  9:49   ` Alan Cox [this message]
2007-07-03 14:54 Alan Cox
2007-07-04  3:49 ` Tejun Heo

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