On 15-10-27 01:49 AM, [email protected] wrote:
From: Vinayak Kale <[email protected]>
This patch is needed to make NCQ commands with FPDMA protocol value
(eg READ/WRITE FPDMA) work over SCSI Generic (SG) interface.
..
+ /* For NCQ commands with FPDMA protocol, copy the tag value */
+ if (tf->protocol == ATA_PROT_NCQ)
+ tf->nsect = qc->tag << 3;
+
What prevents the qc-tag value here from conflicting with in-flight I/O
using the exact same qc-tag ??
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