dma-mapping cleanups

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To: Tony Luck <tony.luck@xxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Subject: dma-mapping cleanups
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 8 Sep 2020 18:47:46 +0200
Cc: Tomasz Figa <tfiga@xxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx

Hi all,

this series contains just the cleanup parts from the previous
"a saner API for allocating DMA addressable pages" series.  The
intent is to get this in to reduce the amount of patchbombing
for iterations of the real API work.

Follow-Ups:
- [PATCH 06/12] dma-direct: remove dma_direct_{alloc,free}_pages
  - From: Christoph Hellwig
- [PATCH 08/12] dma-direct: use phys_to_dma_direct in dma_direct_alloc
  - From: Christoph Hellwig
- [PATCH 03/12] MIPS/jazzdma: decouple from dma-direct
  - From: Christoph Hellwig
- [PATCH 09/12] dma-direct: remove __dma_to_phys
  - From: Christoph Hellwig
- [PATCH 04/12] dma-mapping: fix DMA_OPS dependencies
  - From: Christoph Hellwig
- [PATCH 10/12] dma-direct: rename and cleanup __phys_to_dma
  - From: Christoph Hellwig
- [PATCH 11/12] dma-mapping: move dma_common_{mmap,get_sgtable} out of mapping.c
  - From: Christoph Hellwig
- [PATCH 07/12] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages
  - From: Christoph Hellwig
- [PATCH 02/12] MIPS/jazzdma: remove the unused vdma_remap function
  - From: Christoph Hellwig
- [PATCH 01/12] MIPS: make dma_sync_*_for_cpu a little less overzealous
  - From: Christoph Hellwig
- [PATCH 12/12] dma-mapping: move the dma_declare_coherent_memory documentation
  - From: Christoph Hellwig
- [PATCH 05/12] dma-mapping: add (back) arch_dma_mark_clean for ia64
  - From: Christoph Hellwig

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