Re: PCI Power Management / Interrupt Context

[Jeff Garzik <jgarzik@mandrakesoft.com>]

Linus Torvalds wrote:
> 
> In article <Pine.SOL.4.21.0106262208240.3824-100000@oscar.cc.gatech.edu>,
> David T Eger  <eger@cc.gatech.edu> wrote:
> >
> >So I'm writing some code for a PCI card that is a framebuffer device, and
> >happily filling in the functions for the probe() and remove() functions
> >when I read documentation (Documentation/pci.txt) which mentions that
> >remove() can be called from interrupt context.
> 
> This used to be true for a short while for hot-plug CardBus. I don't
> think it is true any more - and if it is, that would be a bug.
> 
> So I think it's the documentation that is in error, and we should just
> fix that.
> 
> Jeff?

Correct, pci_driver::remove does not get called from interrupt context.

I don't know where the heck this thread is coming from ;-)  The docs
appear to be correct:

>         remove          Pointer to a function which gets called whenever a device
>                         being handled by this driver is removed (either during
>                         deregistration of the driver or when it's manually pulled
>                         out of a hot-pluggable slot). This function always gets
>                         called from process context, so it can sleep.

-- 
Jeff Garzik      | Andre the Giant has a posse.
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