ACC: HPRE&ZIP: qm current_q limit num modify

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Exclusion divided by zero operation

Feature or Bugfix:Bugfix
Signed-off-by: Nliulongfang <liulongfang@huawei.com>
Reviewed-by: Nwangzhou <wangzhou1@hisilicon.com>
Signed-off-by: Nlingmingqiang <lingmingqiang@huawei.com>
Reviewed-by: Nlingmingqiang <lingmingqiang@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/crypto/hisilicon/hpre/hpre_main.c

@@ -475,15 +475,18 @@ static int current_qm_write(struct hpre_debugfs_file *file, u32 val)
 	if (val > ctrl->num_vfs)
 		return -EINVAL;
 
-	/* According PF or VF Dev ID to calculation the curr_qm_qp_num */
-	vfq_num = (qm->ctrl_q_num - qm->qp_num) / ctrl->num_vfs;
+	/* According PF or VF Dev ID to calculation curr_qm_qp_num and store */
 	if (val == 0) {
 		qm->debug.curr_qm_qp_num = qm->qp_num;
-	} else if (val == ctrl->num_vfs) {
-		qm->debug.curr_qm_qp_num = qm->ctrl_q_num - qm->qp_num -
-				(ctrl->num_vfs - 1) * vfq_num;
 	} else {
-		qm->debug.curr_qm_qp_num = vfq_num;
+		vfq_num = (qm->ctrl_q_num - qm->qp_num) / ctrl->num_vfs;
+		if (val == ctrl->num_vfs) {
+			qm->debug.curr_qm_qp_num =
+				qm->ctrl_q_num - qm->qp_num -
+				(ctrl->num_vfs - 1) * vfq_num;
+		} else {
+			qm->debug.curr_qm_qp_num = vfq_num;
+		}
 	}
 
 	writel(val, qm->io_base + QM_DFX_MB_CNT_VF);

drivers/crypto/hisilicon/zip/zip_main.c

@@ -484,15 +484,18 @@ static int current_qm_write(struct ctrl_debug_file *file, u32 val)
 	if (val > ctrl->num_vfs)
 		return -EINVAL;
 
-	/* According PF or VF Dev ID to calculation the curr_qm_qp_num */
-	vfq_num = (qm->ctrl_q_num - qm->qp_num) / ctrl->num_vfs;
+	/* According PF or VF Dev ID to calculation curr_qm_qp_num and store */
 	if (val == 0) {
 		qm->debug.curr_qm_qp_num = qm->qp_num;
-	} else if (val == ctrl->num_vfs) {
-		qm->debug.curr_qm_qp_num = qm->ctrl_q_num - qm->qp_num -
-				(ctrl->num_vfs - 1) * vfq_num;
 	} else {
-		qm->debug.curr_qm_qp_num = vfq_num;
+		vfq_num = (qm->ctrl_q_num - qm->qp_num) / ctrl->num_vfs;
+		if (val == ctrl->num_vfs) {
+			qm->debug.curr_qm_qp_num =
+				qm->ctrl_q_num - qm->qp_num -
+				(ctrl->num_vfs - 1) * vfq_num;
+		} else {
+			qm->debug.curr_qm_qp_num = vfq_num;
+		}
 	}
 
 	writel(val, qm->io_base + QM_DFX_MB_CNT_VF);