[PATCH stable v5.10 0/7] arm64: Default to 32-bit wide ZONE_DMA

[Greg KH]

On Wed, Mar 03, 2021 at 03:33:12PM +0800, Jing Xiangfeng wrote:
> Using two distinct DMA zones turned out to be problematic. Here's an
> attempt go back to a saner default.

What problem does this solve?  How does this fit into the stable kernel
rules?

thanks,

greg k-h