Messages in this thread | | | Subject | Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel, use it in more drivers. | From | David Woodhouse <> | Date | Mon, 14 Jul 2008 19:54:38 -0700 |
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On Mon, 2008-07-14 at 18:50 -0700, David Miller wrote: > From: Linus Torvalds <torvalds@linux-foundation.org> > Date: Mon, 14 Jul 2008 17:33:58 -0700 (PDT) > > > The only reliable way to handle it is to load the firmware before the > > suspend happens - preferably by simply never unloading it in the first > > place. > > That's what we were told was the huge benefit of moving some > of these drivers over to this request_firmware() stuff, it would > save memory.
There _are_ RAM benefits for a number of drivers, even when you load the firmware just once at initialisation time and keep it resident all the time the device is active (and no, I won't slap myself for saying it).
The tg3 driver is a prime example -- it contains three separate firmware images for different revisions of the card, but you'll almost never actually need all three. Mostly you'll only need _one_ of them.
-- dwmw2
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