igb: warn if max_vfs limit is exceeded

Currently there's no warning printed when max_vfs > 7 is specified with
igb and the maximum of 7 is silently enforced. This patch prints a
warning and informs the user of the actions taken.

Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 579dbba5f9e4..eef380af0537 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2291,7 +2291,12 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
         switch (hw->mac.type) {
         case e1000_82576:
         case e1000_i350:
-                adapter->vfs_allocated_count = (max_vfs > 7) ? 7 : max_vfs;
+                if (max_vfs > 7) {
+                        dev_warn(&pdev->dev,
+                                 "Maximum of 7 VFs per PF, using max\n");
+                        adapter->vfs_allocated_count = 7;
+                } else
+                        adapter->vfs_allocated_count = max_vfs;
                 break;
         default:
                 break;