Hi Huacai,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.14-rc1 next-20170915]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
Please send all patches in the series to the same to and cc lists.
On Mon, Sep 18, 2017 at 12:22:54PM +0800, Huacai Chen wrote:
> In non-coherent DMA mode, kernel uses cache flushing operations to
> maintain I/O coherency, so scsi's block queue should be aligned to
> ARCH_DMA_MINALIGN. Otherwise,
In non-coherent DMA mode, kernel uses cache flushing operations to
maintain I/O coherency, so scsi's block queue should be aligned to
ARCH_DMA_MINALIGN. Otherwise, it will cause data corruption, at least
on MIPS:
Step 1, dma_map_single
Step 2, cache_invalidate (no writeback)
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