e100: allow bad MAC address when running with invalid eeprom csum

Seved Torstendahl <seved.torstendahl@netinsight.net> suggested to
let the module parameter for invalid eeprom checksum control the valid
mac address test.

If this bypass happens we should print a different message,
or at least one that is correct, maybe something like below

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 71c6d334bd7f..135617c5941f 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -2597,11 +2597,16 @@ static int __devinit e100_probe(struct pci_dev *pdev,
 
         memcpy(netdev->dev_addr, nic->eeprom, ETH_ALEN);
         memcpy(netdev->perm_addr, nic->eeprom, ETH_ALEN);
-        if(!is_valid_ether_addr(netdev->perm_addr)) {
-                DPRINTK(PROBE, ERR, "Invalid MAC address from "
-                        "EEPROM, aborting.\n");
-                err = -EAGAIN;
-                goto err_out_free;
+        if (!is_valid_ether_addr(netdev->perm_addr)) {
+                if (!eeprom_bad_csum_allow) {
+                        DPRINTK(PROBE, ERR, "Invalid MAC address from "
+                                "EEPROM, aborting.\n");
+                        err = -EAGAIN;
+                        goto err_out_free;
+                } else {
+                        DPRINTK(PROBE, ERR, "Invalid MAC address from EEPROM, "
+                                "you MUST configure one.\n");
+                }
         }
 
         /* Wol magic packet can be enabled from eeprom */