[PATCH v5 01/14] x86/mm: sparse warning fix for early_memremap

[Dave Young]

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*... 

Thanks
Dave