linux-kernel - [PATCH 0/3] Small fixes for swiotlb

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Message-Id: <20220715104535.1053907-1-chao.gao@intel.com>
Date:   Fri, 15 Jul 2022 18:45:32 +0800
From:   Chao Gao <chao.gao@...el.com>
To:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Cc:     Chao Gao <chao.gao@...el.com>,
        Christoph Hellwig <hch@...radead.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>
Subject: [PATCH 0/3] Small fixes for swiotlb

They are found when I try to rebase my swiotlb optimizations onto the
latest dma-mapping tree.

Patch 1 is to remove unused fields.
Patch 2-3 are to fix a corner case that area size can be smaller than the
number of slots in a segment (128). Such small areas conflict with an
implication of the mechanism used to track free slots.

Chao Gao (3):
  swiotlb: remove unused fields in io_tlb_mem
  swiotlb: consolidate rounding up default_nslabs
  swiotlb: ensure a segment doesn't cross the area boundary

 include/linux/swiotlb.h |  5 -----
 kernel/dma/swiotlb.c    | 45 ++++++++++++++++++++++++-----------------
 2 files changed, 27 insertions(+), 23 deletions(-)

-- 
2.25.1