linux-kernel - Re: [PATCH] Re: NAK new drivers without proper power management?

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Message-Id: <200702120010.13996.rjw@sisk.pl>
Date:	Mon, 12 Feb 2007 00:10:11 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	nigel@...el.suspend2.net
Cc:	Daniel Barkalow <barkalow@...ervon.org>, Willy Tarreau <w@....eu>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Robert Hancock <hancockr@...w.ca>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Jeff Garzik <jeff@...zik.org>, Pavel Machek <pavel@....cz>,
	pm list <linux-pm@...ts.osdl.org>
Subject: Re: [PATCH] Re: NAK new drivers without proper power management?

On Monday, 12 February 2007 00:06, Nigel Cunningham wrote:
> Hi.
> 
> On Sun, 2007-02-11 at 19:53 +0100, Rafael J. Wysocki wrote:
> > > Having drivers explicitly marked as to whether they are safe is a good kernel
> > > feature; what to do if they're not is policy.
> > 
> > That's true, but I assume that the people who opt for doing that are also
> > willing to take part in the review of the drivers. :-)
> 
> Absolutely :)
> 
> > Well, I don't think so.  Let's estimate the number of drivers that define
> > .resume() right now:
> > 
> > $ grep -I -l -r '.resume =' linux-2.6.20/drivers/ | wc
> >     102     102    4169
> 
> I think the '.resume =' doesn't help - some have tabs. I ran '\.resume'
> and got 351.

Ah, good catch.  I have searched for ".resume" only and got 612, but this
is the number of files, not the number of drivers.  And it is not exactly
large. ;-)

> It would be interesting to see how many struct pci_driver etc instances
> lack resume methods.

Yes, I'll try to invent a test.

Greetings,
Rafael
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