linux-kernel - [GIT PULL] dma-mapping fixes for Linux 6.9

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Date: Sun, 24 Mar 2024 08:07:11 +0800
From: Christoph Hellwig <hch@...radead.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, iommu@...ts.linux.dev
Subject: [GIT PULL] dma-mapping fixes for Linux 6.9

The following changes since commit b9fa16949d18e06bdf728a560f5c8af56d2bdcaf:

  dma-direct: Leak pages on dma_set_decrypted() failure (2024-02-28 05:31:38 -0800)

are available in the Git repository at:

  git://git.infradead.org/users/hch/dma-mapping.git tags/dma-mapping-6.9-2024-03-24

for you to fetch changes up to 14cebf689a78e8a1c041138af221ef6eac6bc7da:

  swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE (2024-03-13 11:39:34 -0700)

----------------------------------------------------------------
dma-mapping fixes for Linux 6.9

This has a set of swiotlb alignment fixes for sometimes very long
standing bugs from Will.  We've been discussion them for a while and they
should be solid now.

----------------------------------------------------------------
Nicolin Chen (1):
      iommu/dma: Force swiotlb_max_mapping_size on an untrusted device

Will Deacon (5):
      swiotlb: Fix double-allocation of slots due to broken alignment handling
      swiotlb: Enforce page alignment in swiotlb_alloc()
      swiotlb: Honour dma_alloc_coherent() alignment in swiotlb_alloc()
      swiotlb: Fix alignment checks when both allocation and DMA masks are present
      swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE

 drivers/iommu/dma-iommu.c |  9 +++++++++
 kernel/dma/swiotlb.c      | 45 +++++++++++++++++++++++++++++++++------------
 2 files changed, 42 insertions(+), 12 deletions(-)