nvme-fc: Use rq_dma_dir macro

Remove code duplication.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 49577a3..bafe35b 100644 (file)
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2108,7 +2108,6 @@ nvme_fc_map_data(struct nvme_fc_ctrl *ctrl, struct request *rq,
                struct nvme_fc_fcp_op *op)
 {
        struct nvmefc_fcp_req *freq = &op->fcp_req;
-       enum dma_data_direction dir;
        int ret;
 
        freq->sg_cnt = 0;
@@ -2125,9 +2124,8 @@ nvme_fc_map_data(struct nvme_fc_ctrl *ctrl, struct request *rq,
 
        op->nents = blk_rq_map_sg(rq->q, rq, freq->sg_table.sgl);
        WARN_ON(op->nents > blk_rq_nr_phys_segments(rq));
-       dir = (rq_data_dir(rq) == WRITE) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
        freq->sg_cnt = fc_dma_map_sg(ctrl->lport->dev, freq->sg_table.sgl,
-                               op->nents, dir);
+                               op->nents, rq_dma_dir(rq));
        if (unlikely(freq->sg_cnt <= 0)) {
                sg_free_table_chained(&freq->sg_table, SG_CHUNK_SIZE);
                freq->sg_cnt = 0;
@@ -2150,8 +2148,7 @@ nvme_fc_unmap_data(struct nvme_fc_ctrl *ctrl, struct request *rq,
                return;
 
        fc_dma_unmap_sg(ctrl->lport->dev, freq->sg_table.sgl, op->nents,
-                               ((rq_data_dir(rq) == WRITE) ?
-                                       DMA_TO_DEVICE : DMA_FROM_DEVICE));
+                       rq_dma_dir(rq));
 
        nvme_cleanup_cmd(rq);