From: David Awogbemila <awogbem...@google.com> Date: Wed, 2 Sep 2020 11:42:37 -0700
> I don't think there is a specific 24-bit device in mind here, only > that we have seen 32-bit addressing use cases where the guest ran out > of SWIOTLB space and restricting to GFP_DMA32 helped.. so we thought > it would be natural for the driver to handle the 24 bit case in case > it ever came along. You should add such support when the situation presents itself, rather than prematurely like this. Thank you.
