1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 5b910cf63740..b8251e827059 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -6011,9 +6011,20 @@ static void nv_shutdown(struct pci_dev *pdev)
         if (netif_running(dev))
                 nv_close(dev);
 
-        nv_restore_mac_addr(pdev);
+        /*
+         * Restore the MAC so a kernel started by kexec won't get confused.
+         * If we really go for poweroff, we must not restore the MAC,
+         * otherwise the MAC for WOL will be reversed at least on some boards.
+         */
+        if (system_state != SYSTEM_POWER_OFF) {
+                nv_restore_mac_addr(pdev);
+        }
 
         pci_disable_device(pdev);
+        /*
+         * Apparently it is not possible to reinitialise from D3 hot,
+         * only put the device into D3 if we really go for poweroff.
+         */
         if (system_state == SYSTEM_POWER_OFF) {
                 if (pci_enable_wake(pdev, PCI_D3cold, np->wolenabled))
                         pci_enable_wake(pdev, PCI_D3hot, np->wolenabled);