igb: make ioport free

This patch makes igb driver ioport-free.
This corrects behavior in probe function so as not to request ioport
resources as long as they are not really needed.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 6b2e7d351d65..0eecb8b2abd2 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -271,6 +271,10 @@ struct igb_adapter {
         unsigned int msi_enabled;
 
         u32 eeprom_wol;
+
+        /* for ioport free */
+        int bars;
+        int need_ioport;
 };
 
 enum e1000_state_t {