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nvme-pci: Tidy up nvme_unmap_data
Remove pointless local variable and use rq_dma_dir macro. Signed-off-by: Israel Rukshin <israelr@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
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1 changed files with 2 additions and 3 deletions
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@ -537,14 +537,13 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
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static void nvme_unmap_data(struct nvme_dev *dev, struct request *req)
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{
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struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
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enum dma_data_direction dma_dir = rq_data_dir(req) ?
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DMA_TO_DEVICE : DMA_FROM_DEVICE;
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const int last_prp = dev->ctrl.page_size / sizeof(__le64) - 1;
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dma_addr_t dma_addr = iod->first_dma, next_dma_addr;
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int i;
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if (iod->dma_len) {
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dma_unmap_page(dev->dev, dma_addr, iod->dma_len, dma_dir);
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dma_unmap_page(dev->dev, dma_addr, iod->dma_len,
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rq_dma_dir(req));
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return;
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}
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