Tejun Heo wrote:
Add per-dev pio/mwdma/udma_mask. All transfer mode limits used to be applied to ap->*_mask which unnecessarily restricted other devices sharing the port. This change will also benefit later EH speed down and hotplug. Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
I don't see much value in the separation. Rather than 3 separate masks, it seems like this patch would be simplified if you simply added dev->xfer_mask.
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