diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index d02b55b6aa9c..3e08847505ce 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -5524,7 +5524,7 @@ bool ice_fw_supports_report_dflt_cfg(struct ice_hw *hw)
  * returned by the firmware is a 16 bit * value, but is indexed
  * by [fls(speed) - 1]
  */
-static const u32 ice_aq_to_link_speed[15] = {
+static const u32 ice_aq_to_link_speed[] = {
 	SPEED_10,	/* BIT(0) */
 	SPEED_100,
 	SPEED_1000,
@@ -5536,10 +5536,6 @@ static const u32 ice_aq_to_link_speed[15] = {
 	SPEED_40000,
 	SPEED_50000,
 	SPEED_100000,	/* BIT(10) */
-	0,
-	0,
-	0,
-	0		/* BIT(14) */
 };
 
 /**
@@ -5550,5 +5546,8 @@ static const u32 ice_aq_to_link_speed[15] = {
  */
 u32 ice_get_link_speed(u16 index)
 {
+	if (index >= ARRAY_SIZE(ice_aq_to_link_speed))
+		return 0;
+
 	return ice_aq_to_link_speed[index];
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_vf_mbx.c b/drivers/net/ethernet/intel/ice/ice_vf_mbx.c
index d4a4001b6e5d..f56fa94ff3d0 100644
--- a/drivers/net/ethernet/intel/ice/ice_vf_mbx.c
+++ b/drivers/net/ethernet/intel/ice/ice_vf_mbx.c
@@ -39,7 +39,7 @@ ice_aq_send_msg_to_vf(struct ice_hw *hw, u16 vfid, u32 v_opcode, u32 v_retval,
 	return ice_sq_send_cmd(hw, &hw->mailboxq, &desc, msg, msglen, cd);
 }
 
-static const u32 ice_legacy_aq_to_vc_speed[15] = {
+static const u32 ice_legacy_aq_to_vc_speed[] = {
 	VIRTCHNL_LINK_SPEED_100MB,	/* BIT(0) */
 	VIRTCHNL_LINK_SPEED_100MB,
 	VIRTCHNL_LINK_SPEED_1GB,
@@ -51,10 +51,6 @@ static const u32 ice_legacy_aq_to_vc_speed[15] = {
 	VIRTCHNL_LINK_SPEED_40GB,
 	VIRTCHNL_LINK_SPEED_40GB,
 	VIRTCHNL_LINK_SPEED_40GB,
-	VIRTCHNL_LINK_SPEED_UNKNOWN,
-	VIRTCHNL_LINK_SPEED_UNKNOWN,
-	VIRTCHNL_LINK_SPEED_UNKNOWN,
-	VIRTCHNL_LINK_SPEED_UNKNOWN	/* BIT(14) */
 };
 
 /**
@@ -71,21 +67,20 @@ static const u32 ice_legacy_aq_to_vc_speed[15] = {
  */
 u32 ice_conv_link_speed_to_virtchnl(bool adv_link_support, u16 link_speed)
 {
-	u32 speed;
+	/* convert a BIT() value into an array index */
+	u32 index = fls(link_speed) - 1;
 
-	if (adv_link_support) {
-		/* convert a BIT() value into an array index */
-		speed = ice_get_link_speed(fls(link_speed) - 1);
-	} else {
+	if (adv_link_support)
+		return ice_get_link_speed(index);
+	else if (index < ARRAY_SIZE(ice_legacy_aq_to_vc_speed))
 		/* Virtchnl speeds are not defined for every speed supported in
 		 * the hardware. To maintain compatibility with older AVF
 		 * drivers, while reporting the speed the new speed values are
 		 * resolved to the closest known virtchnl speeds
 		 */
-		speed = ice_legacy_aq_to_vc_speed[fls(link_speed) - 1];
-	}
+		return ice_legacy_aq_to_vc_speed[index];
 
-	return speed;
+	return VIRTCHNL_LINK_SPEED_UNKNOWN;
 }
 
 /* The mailbox overflow detection algorithm helps to check if there