net/mlx4_core: Don't issue PCIe speed/width checks for VFs

Carrying out PCI speed/width checks through pcie_get_minimum_link()
on VFs yield wrong results, so remove them.

Fixes: b912b2f8 ('net/mlx4_core: Warn if device doesn't have enough PCI bandwidth')
Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/main.c

@@ -2440,6 +2440,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 	 * No return code for this call, just warn the user in case of PCI
 	 * express device capabilities are under-satisfied by the bus.
 	 */
+	if (!mlx4_is_slave(dev))
 		mlx4_check_pcie_caps(dev);
 
 	/* In master functions, the communication channel must be initialized