[PATCH 3/5] nvme-pci: Remove redundant segment validation

[Baolin Wang]

We've validated the segment counts before calling nvme_map_data(),
so there is no need to validate again in nvme_pci_use_sgls() only
called from nvme_map_data().

Signed-off-by: Baolin Wang <baolin.wang at linux.alibaba.com>
---
 drivers/nvme/host/pci.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index d0e9bbf..63bfb8b 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -501,9 +501,6 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
 	int nseg = blk_rq_nr_phys_segments(req);
 	unsigned int avg_seg_size;
 
-	if (nseg == 0)
-		return false;
-
 	avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req), nseg);
 
 	if (!(dev->ctrl.sgls & ((1 << 0) | (1 << 1))))
-- 
1.8.3.1