From: "H. Peter Anvin" <hpa@xxxxxxxxx> Date: Sun, 04 Aug 2013 10:33:46 -0700 > Anyone who can dig backwards and summarize? In other words: > > Where in the current code do we stuff a physical address in a pointer, > or a virtual address into a non-pointer? The VGA register accessors try to accomodate iomem and ioport accesses. If they are given a non-NULL iomem pointer 'regbase' they use iomem accesses, otherwise they do direct ISA port poking. And yes the drivers in question are making some brash assumptions. I suspect they should be using ioremap() or similar. -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html