Re: [PATCH] nommu: allow mmap when !CONFIG_MMU

From: Russell King - ARM Linux
Date: Fri Dec 09 2016 - 15:02:17 EST

On Thu, Dec 01, 2016 at 02:48:00PM +0100, Benjamin Gaignard wrote:
> commit ab6494f0c96f ("nommu: Add noMMU support to the DMA API") have
> add CONFIG_MMU compilation flag but that prohibit to use dma_mmap_wc()
> when the platform doesn't have MMU.
> This patch call vm_iomap_memory() in noMMU case to test if addresses
> are correct and set wma->vm_flags rather than all return an error.

ITYM vma.

I think this is fine, but I've no way to know as I don't run nommu here...
I've been hoping that others working on nommu would at least give an
ack or something, but I guess not.

So, please put it in the patch system, thanks.

RMK's Patch system:
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to