Re: [PATCH v7 05/15] swiotlb: Add a new get_io_tlb_mem getter

On Tue, May 18, 2021 at 02:51:52PM +0800, Claire Chang wrote:

Still keep this function because directly using dev->dma_io_tlb_mem will cause issues for memory allocation for existing devices. The pool can't support atomic coherent allocation so we need to distinguish the per device pool and the default pool in swiotlb_alloc.

This above should really be rolled in the commit. You can prefix it by "The reason it was done this way was because directly using .."