Messages in this thread | | | From | David Brownell <> | Subject | Re: fix u32 vs. pm_message_t in usb | Date | Thu, 7 Apr 2005 13:49:23 -0700 |
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On Tuesday 05 April 2005 2:38 pm, Pavel Machek wrote: > It seems to me that USB stack still needs some u32-vs-pm_message_t > changes (in rc2-mm1): > > Could you apply them?
I see someone changed the requirements for platform_device too ... :)
This patch is mostly NOPs, but many of them tromp on other patches I have in the works. So I'd rather hold off for now, using the rest of the 2.6.12-rc series for only real honest-to-gosh bugfixes. (Isn't that supposed to be the current goal, in any case?)
Something that's not exactly a NOP:
> --- clean-mm/drivers/usb/host/ohci-omap.c 2005-04-05 10:55:21.000000000 +0200 > +++ linux-mm/drivers/usb/host/ohci-omap.c 2005-04-05 12:13:38.000000000 +0200 > @@ -458,9 +458,11 @@ > > /* states match PCI usage, always suspending the root hub except that > * 4 ~= D3cold (ACPI D3) with clock off (resume sees reset). > + * > + * FIXME: above comment is not right, and code is wrong, too :-(.
The comment is exactly right, and matches the code. Has done so for most of a year now, in fact.
What's wrong is the way that the pm_message_t changes have discarded functionality ... including, as a specific example, the ability for drivers to do the right thing based on what kind of suspend state they're entering. (Because pm_message_t is effectively a boolean, rather than a something that's multi-valued.)
I'll repeat myself again, at the risk of being redundant: we need to actually fix this pm_message_t thing to _work_ rather than paper over its botches by discarding functionality.
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