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From: Sasha Levin <sashal@kernel.org>
To: Jianxiong Gao <jxgao@google.com>
Cc: stable@vger.kernel.org
Subject: Re: [PATCH 5.4 0/8] preserve DMA offsets when using swiotlb
Date: Tue, 6 Apr 2021 12:10:03 -0400	[thread overview]
Message-ID: <YGyH20fvYV8ySijn@sashalap> (raw)
In-Reply-To: <20210405205109.1700468-1-jxgao@google.com>

On Mon, Apr 05, 2021 at 08:51:01PM +0000, Jianxiong Gao wrote:
>Hi all,
>
>This series of backports fixes the SWIOTLB library to maintain the
>page offset when mapping a DMA address. The bug that motivated this
>patch series manifested when running a 5.4 kernel as a SEV guest with
>an NVMe device. However, any device that infers information from the
>page offset and is accessed through the SWIOTLB will benefit from this
>bug fix.
>
>Jianxiong Gao (7):
>  driver core: add a min_align_mask field to struct
>    device_dma_parameters
>  swiotlb: add a io_tlb_offset helper
>  swiotlb: factor out a nr_slots helper
>  swiotlb: clean up swiotlb_tbl_unmap_single
>  swiotlb: refactor swiotlb_tbl_map_single
>  swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single
>  nvme-pci: set min_align_mask
>
>Linus Torvalds (1):
>  Linux 5.4

This is clearly wrong :)

This series also doesn't apply cleanly, what did you use as a base?

Also, why are the sign-offs on individual patches different between your
patches and upstream?

-- 
Thanks,
Sasha

      parent reply	other threads:[~2021-04-06 16:10 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05 20:51 [PATCH 5.4 0/8] preserve DMA offsets when using swiotlb Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 1/8] driver core: add a min_align_mask field to struct device_dma_parameters Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 2/8] swiotlb: factor out an io_tlb_offset helper Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 3/8] swiotlb: factor out a nr_slots helper Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 4/8] swiotlb: clean up swiotlb_tbl_unmap_single Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 5/8] swiotlb: refactor swiotlb_tbl_map_single Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 6/8] swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 7/8] swiotlb: respect min_align_mask Jianxiong Gao
2021-04-05 20:51 ` [PATCH 5.4 8/8] nvme-pci: set min_align_mask Jianxiong Gao
2021-04-06 16:10 ` Sasha Levin [this message]

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