On Tue, 10 Dec, at 10:12:21AM, Dave Young wrote: > On 12/09/13 at 04:05pm, Borislav Petkov wrote: > > On Mon, Dec 09, 2013 at 05:42:14PM +0800, Dave Young wrote: > > > There's a lot of sparse warnings for code like below: > > > void *a = early_memremap(phys_addr, size); > > > > > > early_memremap intend to map kernel memory with ioremap facility, the return > > > pointer should be a kernel ram pointer instead of iomem one. > > > > > > For making the function clearer and supressing sparse warnings this patch > > > do below two things: > > > 1. cast to (__force void *) for the return value of early_memremap > > > > I'd guess this is to shut up the __iomem thing? And we're getting that > > because we're using ioremap, ... hohum... > > Yes, IMHO early_memremap really should not return __iomem pointer since it's > *memremap*... This needs reviewing by at least one of the x86 folks, but it certainly makes sense to me. -- Matt Fleming, Intel Open Source Technology Center
