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path: root/drivers/infiniband/hw/mlx4/cq.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/cq.c')
-rw-r--r--drivers/infiniband/hw/mlx4/cq.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index e940521e9c8d..660b27aecae5 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -478,7 +478,8 @@ void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq)
478{ 478{
479 u32 prod_index; 479 u32 prod_index;
480 int nfreed = 0; 480 int nfreed = 0;
481 struct mlx4_cqe *cqe; 481 struct mlx4_cqe *cqe, *dest;
482 u8 owner_bit;
482 483
483 /* 484 /*
484 * First we need to find the current producer index, so we 485 * First we need to find the current producer index, so we
@@ -501,9 +502,13 @@ void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq)
501 if (srq && !(cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK)) 502 if (srq && !(cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK))
502 mlx4_ib_free_srq_wqe(srq, be16_to_cpu(cqe->wqe_index)); 503 mlx4_ib_free_srq_wqe(srq, be16_to_cpu(cqe->wqe_index));
503 ++nfreed; 504 ++nfreed;
504 } else if (nfreed) 505 } else if (nfreed) {
505 memcpy(get_cqe(cq, (prod_index + nfreed) & cq->ibcq.cqe), 506 dest = get_cqe(cq, (prod_index + nfreed) & cq->ibcq.cqe);
506 cqe, sizeof *cqe); 507 owner_bit = dest->owner_sr_opcode & MLX4_CQE_OWNER_MASK;
508 memcpy(dest, cqe, sizeof *cqe);
509 dest->owner_sr_opcode = owner_bit |
510 (dest->owner_sr_opcode & ~MLX4_CQE_OWNER_MASK);
511 }
507 } 512 }
508 513
509 if (nfreed) { 514 if (nfreed) {