Re: CURRENT broken on Raspberry Pi 2?

[mlelstv%serpens.de@localhost (Michael van Elst)]

ryo%nerv.org@localhost (Ryo Shimizu) writes:

>+int
>+linux_workqueue_init(void)
>+{
>+	static ONCE_DECL(linux_workqueue_init_once);
>+
>+	return RUN_ONCE(&linux_workqueue_init_once, &linux_workqueue_init0);
>+}
>+

linux_workqueue_init is called by DRM. Also linux_workqueue_fini deletes 
the key which will never be re-created when you use RUN_ONCE. DRM also
uses RUN_ONCE and I'm not sure if RUN_ONCE allows nested calls.

So yes, something like this is needed, but there are some caveats.

Moving the "linux module" from DRM into common might be one necessary
step.

-- 
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."