return 0;
}
+static inline struct scatterlist *
+ata_qc_first_sg(struct ata_queued_cmd *qc)
+{
+ if (qc->n_elem)
+ return qc->__sg;
+ if (qc->pad_len)
+ return &qc->pad_sgent;
+ return NULL;
+}
+
static inline struct scatterlist *
ata_qc_next_sg(struct scatterlist *sg, struct ata_queued_cmd *qc)
{
return NULL;
if (++sg - qc->__sg < qc->n_elem)
return sg;
- return qc->pad_len ? &qc->pad_sgent : NULL;
+ if (qc->pad_len)
+ return &qc->pad_sgent;
+ return NULL;
}
#define ata_for_each_sg(sg, qc) \
- for (sg = qc->__sg; sg; sg = ata_qc_next_sg(sg, qc))
+ for (sg = ata_qc_first_sg(qc); sg; sg = ata_qc_next_sg(sg, qc))
static inline unsigned int ata_tag_valid(unsigned int tag)
{