Re: [RFC][PATCH -mm 3/3] PM: Disable _request_firmware before hibernation/suspend

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On 28 May 2007, at 10:06, Kay Sievers wrote:

The underlying issue are the driver authors, that's not so easy to
fix. :)

Sorry, I know this maybe be unintentional, but comments like this make me somewhat angry.

If there is no decent documentation as to how to do it the right way (tm), how do you expect people to do it the right way (tm)?

Any timeout for a
firmware-request is just a broken concept, the request should wait
forever, to be fulfilled or canceled from userspace when it's ready.

What I wrote above is especially true when the in-kernel APIs themselves do things the wrong way (tm) themselves. Thus, even more thought is required to work around this imperfect behaviour in a sane manner. And without documentation, every single device driver author has to go through this thought process themselves. Unsurprisingly, they often get it wrong. But as there's no decent documentation to do it right, it's *not* their fault. I'd suggest it's more the fault of the core kernel devs who fail to fix up a questionable firmware loading interface, then fail to document how to work around its shortcomings.

Again, apologies if this sounds angry, I don't want to start an argument. But as someone just starting out here, this kind of thing can be very frustrating, as even with the best will in the world, achieving the right way (tm) is basically impossible if those in the know about what the right way (tm) is fail to share this information.

Michael-Luke Jones

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