Commit f2fa006f authored by Israel Rukshin's avatar Israel Rukshin Committed by Sagi Grimberg
Browse files

nvme-pci: Tidy up nvme_unmap_data 



Remove pointless local variable and use rq_dma_dir macro.

Signed-off-by: default avatarIsrael Rukshin <israelr@mellanox.com>
Reviewed-by: default avatarMax Gurtovoy <maxg@mellanox.com>
Reviewed-by: default avatarKeith Busch <kbusch@kernel.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
parent e7832cb4

drivers/nvme/host/pci.c

+2 −3
Original line number Diff line number Diff line
@@ -537,14 +537,13 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req) 
static void nvme_unmap_data(struct nvme_dev *dev, struct request *req)

{

	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);

	enum dma_data_direction dma_dir = rq_data_dir(req) ?

			DMA_TO_DEVICE : DMA_FROM_DEVICE;

	const int last_prp = dev->ctrl.page_size / sizeof(__le64) - 1;

	dma_addr_t dma_addr = iod->first_dma, next_dma_addr;

	int i;



	if (iod->dma_len) {

		dma_unmap_page(dev->dev, dma_addr, iod->dma_len, dma_dir);

		dma_unmap_page(dev->dev, dma_addr, iod->dma_len,

			       rq_dma_dir(req));

		return;

	}