be2net: dynamically allocate adapter->vf_cfg

Instead of a fixed sized array for vf_cfg, allocate the size dynamically
depending on number of VFs the device supports.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/benet/be.h

@@ -92,8 +92,6 @@ static inline char *nic_name(struct pci_dev *pdev)
 
 #define FW_VER_LEN		32
 
-#define BE_MAX_VF		32
-
 struct be_dma_mem {
 	void *va;
 	dma_addr_t dma;
@@ -336,7 +334,7 @@ struct be_adapter {
 
 	bool be3_native;
 	bool sriov_enabled;
-	struct be_vf_cfg vf_cfg[BE_MAX_VF];
+	struct be_vf_cfg *vf_cfg;
 	u8 is_virtfn;
 	u32 sli_family;
 	u8 hba_port_num;

drivers/net/benet/be_main.c

@@ -2838,6 +2838,7 @@ static void __devexit be_remove(struct pci_dev *pdev)
 
 	be_ctrl_cleanup(adapter);
 
+	kfree(adapter->vf_cfg);
 	be_sriov_disable(adapter);
 
 	be_msix_disable(adapter);
@@ -3022,16 +3023,23 @@ static int __devinit be_probe(struct pci_dev *pdev,
 	}
 
 	be_sriov_enable(adapter);
+	if (adapter->sriov_enabled) {
+		adapter->vf_cfg = kcalloc(num_vfs,
+			sizeof(struct be_vf_cfg), GFP_KERNEL);
+
+		if (!adapter->vf_cfg)
+			goto free_netdev;
+	}
 
 	status = be_ctrl_init(adapter);
 	if (status)
-		goto free_netdev;
+		goto free_vf_cfg;
 
 	if (lancer_chip(adapter)) {
 		status = lancer_test_and_set_rdy_state(adapter);
 		if (status) {
 			dev_err(&pdev->dev, "Adapter in non recoverable error\n");
-			goto free_netdev;
+			goto ctrl_clean;
 		}
 	}
 
@@ -3093,6 +3101,8 @@ stats_clean:
 	be_stats_cleanup(adapter);
 ctrl_clean:
 	be_ctrl_cleanup(adapter);
+free_vf_cfg:
+	kfree(adapter->vf_cfg);
 free_netdev:
 	be_sriov_disable(adapter);
 	free_netdev(netdev);