From: "Amruth G.P" <amruth.gouda.parameshwarappa@intel.com>
Date: Mon, 29 Jul 2019 02:04:54 -0700
Subject: ice: Add input handlers for virtual channel handlers
Patch-mainline: v5.4-rc1
Git-commit: 3f416961b0a5000bf5556de1a53cc3cf87a6e744
References: jsc#SLE-7926

Move the assignment to local variables after validation.

Remove unnecessary checks in ice_vc_process_vf_msg() as the respective
functions are now performing the checks.

Signed-off-by: "Amruth G.P" <amruth.gouda.parameshwarappa@intel.com>
Signed-off-by: Nitesh B Venkatesh <nitesh.b.venkatesh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c |   64 +++++++++++------------
 1 file changed, 32 insertions(+), 32 deletions(-)

--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -1734,18 +1734,18 @@ static int ice_vc_config_rss_key(struct
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
+	if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
+	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
@@ -1781,18 +1781,18 @@ static int ice_vc_config_rss_lut(struct
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
+	if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
+	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
@@ -1877,6 +1877,12 @@ static int ice_vc_ena_qs_msg(struct ice_
 		goto error_param;
 	}
 
+	if (vqs->rx_queues > ICE_MAX_BASE_QS_PER_VF ||
+	    vqs->tx_queues > ICE_MAX_BASE_QS_PER_VF) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@@ -1932,6 +1938,12 @@ static int ice_vc_dis_qs_msg(struct ice_
 		goto error_param;
 	}
 
+	if (vqs->rx_queues > ICE_MAX_BASE_QS_PER_VF ||
+	    vqs->tx_queues > ICE_MAX_BASE_QS_PER_VF) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@@ -1984,12 +1996,6 @@ static int ice_vc_cfg_irq_map_msg(struct
 	irqmap_info = (struct virtchnl_irq_map_info *)msg;
 	num_q_vectors_mapped = irqmap_info->num_vectors;
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
-		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
-		goto error_param;
-	}
-
 	/* Check to make sure number of VF vectors mapped is not greater than
 	 * number of VF vectors originally allocated, and check that
 	 * there is actually at least a single VF queue vector mapped
@@ -2001,6 +2007,12 @@ static int ice_vc_cfg_irq_map_msg(struct
 		goto error_param;
 	}
 
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	for (i = 0; i < num_q_vectors_mapped; i++) {
 		struct ice_q_vector *q_vector;
 
@@ -2092,10 +2104,6 @@ static int ice_vc_cfg_qs_msg(struct ice_
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi)
-		goto error_param;
-
 	if (qci->num_queue_pairs > ICE_MAX_BASE_QS_PER_VF) {
 		dev_err(&pf->pdev->dev,
 			"VF-%d requesting more than supported number of queues: %d\n",
@@ -2104,6 +2112,12 @@ static int ice_vc_cfg_qs_msg(struct ice_
 		goto error_param;
 	}
 
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	for (i = 0; i < qci->num_queue_pairs; i++) {
 		qpi = &qci->qpair[i];
 		if (qpi->txq.vsi_id != qci->vsi_id ||
@@ -2755,20 +2769,6 @@ void ice_vc_process_vf_msg(struct ice_pf
 			err = -EPERM;
 		else
 			err = -EINVAL;
-		goto error_handler;
-	}
-
-	/* Perform additional checks specific to RSS and Virtchnl */
-	if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_KEY) {
-		struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg;
-
-		if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE)
-			err = -EINVAL;
-	} else if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_LUT) {
-		struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
-
-		if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE)
-			err = -EINVAL;
 	}
 
 error_handler: