On Thu, Jun 09, 2016 at 10:08:01PM +0200, Thomas Gleixner wrote:

On Tue, 7 Jun 2016, Dong Aisheng wrote:

quoted

Then it may need introduce a lot changes and increase many new core APIs.
Is that a problem?

No. That's all better than each driver having broken workarounds. It's a
common problem so it wants to be addressed at the core level. There you have a
central point to do this and you can still catch abusers which call stuff from
the wrong context. The hacks in the drivers don't allow that because they look
at the context, i.e. irq disabled, instead of checking the system state.

Okay, thanks.
If you wouldn't mind i could send out a patch based on your
suggestion for further discussion.

Thanks

Regards
Dong Aisheng

Thanks,

	tglx