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If the controller doesn't support 64-bit addressing mode, it must not set the DMA mask to 64-bit. But it's unconditionally trying to set to 64-bit without checking 64-bit addressing support in the controller capabilities. It was correctly checked before commit 3b1d058 ("[SCSI] ufs: Segregate PCI Specific Code"), this aims to restores the correct behaviour. To achieve this in a generic way, firstly we should push down the DMA mask setting routine ufshcd_set_dma_mask() from PCI glue driver to core driver in order to do it for both PCI glue driver and Platform glue driver. Secondly, we should change pci_ DMA mapping API to dma_ DMA mapping API because core driver is independent of glue drivers. Signed-off-by: Akinobu Mita <[email protected]> Acked-by: Santosh Y <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
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