linux-kernel - [GIT PULL] dma-mapping fixes for 4.20

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Message-ID: <20181125083552.GA15060@infradead.org>
Date:   Sun, 25 Nov 2018 09:35:52 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] dma-mapping fixes for 4.20

The following changes since commit c8ce94b8fe5324aca4c10baeb53dea2d5775a170:

  Merge tag 'mips_fixes_4.20_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux (2018-11-20 14:31:00 -0800)

are available in the Git repository at:

  git://git.infradead.org/users/hch/dma-mapping.git tags/dma-mapping-4.20-3

for you to fetch changes up to cb216b84d6ea24fa10f1e7aac35de77246841041:

  swiotlb: Skip cache maintenance on map error (2018-11-21 18:47:58 +0100)

----------------------------------------------------------------
Two dma-direct / swiotlb regressions fixes

 - 0 is a valid physical address on some arm boards, we can't use
   0 as the error value
 - don't try to cache flush the error return value (no matter what it is)

----------------------------------------------------------------
Robin Murphy (2):
      dma-direct: Make DIRECT_MAPPING_ERROR viable for SWIOTLB
      swiotlb: Skip cache maintenance on map error

 include/linux/dma-direct.h | 2 +-
 kernel/dma/swiotlb.c       | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)