linux-kernel - [PATCH v3 0/3] Fix double allocation in swiotlb

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Date: Mon,  5 Feb 2024 19:01:24 +0000
From: Will Deacon <will@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	iommu@...ts.linux.dev,
	Christoph Hellwig <hch@....de>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Robin Murphy <robin.murphy@....com>,
	Petr Tesarik <petr.tesarik1@...wei-partners.com>,
	Dexuan Cui <decui@...rosoft.com>
Subject: [PATCH v3 0/3] Fix double allocation in swiotlb_alloc()

Hi all,

This is version three of the patches I posted recently:

v1: https://lore.kernel.org/r/20240126151956.10014-1-will@kernel.org
v2: https://lore.kernel.org/r/20240131122543.14791-1-will@kernel.org

Thanks to Robin for the comments on the most recent version.

Changes since v2 include:

  - Restore missing 'continue' statement that got accidentally dropped
    while addressing the initial round of review feedback.

  - Reword the commit message in patch #1

  - Add a Fixes: tag to the last patch

Cheers,

Will

Cc: iommu@...ts.linux.dev
Cc: Christoph Hellwig <hch@....de>
Cc: Marek Szyprowski <m.szyprowski@...sung.com>
Cc: Robin Murphy <robin.murphy@....com>
Cc: Petr Tesarik <petr.tesarik1@...wei-partners.com>
Cc: Dexuan Cui <decui@...rosoft.com>

--->8

Will Deacon (3):
  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()

 kernel/dma/swiotlb.c | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

-- 
2.43.0.594.gd9cf4e227d-goog