[PATCH] nvme: Correct the prps per page calculation method

[Wesley Sheng]

From: wesleywesley <wesleyshenggit at sina.com>

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: wesleywesley <wesleyshenggit at sina.com>
---
 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 fc64d93ab8..622bb378c0 100644
--- a/drivers/nvme/nvme.c
+++ b/drivers/nvme/nvme.c
@@ -79,7 +79,7 @@ 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);
-- 
2.25.1