From 859b33c948945f7904f60a2c12a3792d356d51ad Mon Sep 17 00:00:00 2001 From: Wesley Sheng Date: Tue, 22 Jun 2021 11:34:21 +0800 Subject: [PATCH] nvme: Correct the prps per page calculation method Each prp is 8 bytes, calculate the number of prps per page should just divide page size by 8 there is no need to minus 1 Signed-off-by: Wesley Sheng Reviewed-by: Bin Meng --- drivers/nvme/nvme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c index d554ec54cb..dc6c39ba10 100644 --- a/drivers/nvme/nvme.c +++ b/drivers/nvme/nvme.c @@ -81,7 +81,7 @@ static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2, u64 *prp_pool; int length = total_len; int i, nprps; - u32 prps_per_page = (page_size >> 3) - 1; + u32 prps_per_page = page_size >> 3; u32 num_pages; length -= (page_size - offset); -- 2.39.5