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

From: wesleywesley wesleyshenggit@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@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);