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 <[email protected]> Reviewed-by: Bin Meng <[email protected]>
imaami · Jun 23, 2021 · 859b33c · 859b33c
1 parent b12f623
commit 859b33c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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);