[PATCH 0/2] arm64: mm: fix kdump broken with ZONE_DMA reintroduced

[Will Deacon]

On Sat, Dec 26, 2020 at 11:35:55AM +0800, Chen Zhou wrote:
> If the memory reserved for crash dump kernel falled in ZONE_DMA32,
> the devices in crash dump kernel need to use ZONE_DMA will alloc fail.
>            
> Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is
> enabled, otherwise, reserving in ZONE_DMA32.
> 
> Patch 1 updates the comments about the ZONE_DMA.
> Patch 2 fix kdump broken.
> 
> Chen Zhou (2):
>   arm64: mm: update the comments about ZONE_DMA
>   arm64: mm: fix kdump broken with ZONE_DMA reintroduced

Please can you repost this if it is still needed after the changes that
landed in -rc4?

Will