From 750dde4472e48eadf28221b7eb02d493db1bcfd0 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 18 May 2018 08:37:04 -0600 Subject: [PATCH] nvme-pci: simplify nvme_cqe_valid We always look at the current CQ head and phase, so don't pass these as separate arguments, and rename the function to nvme_cqe_pending. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/nvme/host/pci.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index b58aebb347a0..cf36dd39f2a5 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -915,10 +915,10 @@ static void nvme_pci_complete_rq(struct request *req) } /* We read the CQE phase first to check if the rest of the entry is valid */ -static inline bool nvme_cqe_valid(struct nvme_queue *nvmeq, u16 head, - u16 phase) +static inline bool nvme_cqe_pending(struct nvme_queue *nvmeq) { - return (le16_to_cpu(nvmeq->cqes[head].status) & 1) == phase; + return (le16_to_cpu(nvmeq->cqes[nvmeq->cq_head].status) & 1) == + nvmeq->cq_phase; } static inline void nvme_ring_cq_doorbell(struct nvme_queue *nvmeq) @@ -965,7 +965,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, static inline bool nvme_read_cqe(struct nvme_queue *nvmeq, struct nvme_completion *cqe) { - if (nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) { + if (nvme_cqe_pending(nvmeq)) { *cqe = nvmeq->cqes[nvmeq->cq_head]; if (++nvmeq->cq_head == nvmeq->q_depth) { @@ -1006,7 +1006,7 @@ static irqreturn_t nvme_irq(int irq, void *data) static irqreturn_t nvme_irq_check(int irq, void *data) { struct nvme_queue *nvmeq = data; - if (nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) + if (nvme_cqe_pending(nvmeq)) return IRQ_WAKE_THREAD; return IRQ_NONE; } @@ -1016,7 +1016,7 @@ static int __nvme_poll(struct nvme_queue *nvmeq, unsigned int tag) struct nvme_completion cqe; int found = 0, consumed = 0; - if (!nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) + if (!nvme_cqe_pending(nvmeq)) return 0; spin_lock_irq(&nvmeq->q_lock); -- 2.39.5