Messages in this thread | | | Subject | Re: [PATCH] call drv->shutdown at rmmod | From | Benjamin Herrenschmidt <> | Date | 15 Aug 2003 18:01:03 +0200 |
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> Even if kexec is not brought into the picture the devices need to be quiesed on > reboot. On x86 and probably other architectures there are 2 ways a reboot can go. > 1) The firmware when it regains control toggles the motherboard reset > line resetting all of the devices, so nothing we do really makes a difference. > 2) The firmware when it regains control tweaks a few things and > pretends it was never out of control, and restarts the boot > process. > > When the firmware does not toggle the motherboard reset line during a > reboot the firmware case is exactly equivalent to the kexec one. > > So shutdown needs to quiese things.
Yup, my point was mostly to say that quiescing for shutdown and putting in low power state are 2 different things, and that the "shutdown" name for the callback is a bit misleading...
Ben.
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