I can't see any code in xhci-ring.c that ensures that a LINK
TRB is always correctly aligned when a transfer descriptor
has a link TRB in the middle of a chain of data TRBs.
See section 4.11.7.1 of the 1.0 version of the xhci specification.
I don't think we are seeing such issues, but any code that
generates SG urb could easily do so.
David
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