kexec reboot broken with ioatdma?

[Roland Dreier]

 > If its reset in a standard path, then yes that seems sensible to me.
 > I'm mainly concerned about avoiding something along the lines of:
 > 
 > 	if (is_booting_from_kexec)
 > 		reset_hw();

I think we all agree... the idea is to change from

	init_hw()
	{
		/* assume hw is in pristine state */
		do_init();
	}

to

	init_hw()
	{
		/* hw is in unknown state */
		reset_hw();
		do_init();
	}

 - R.