e1000: remove obsolete custom pci_save_state code

Now that 2.6.19 provides a proper implementation that saves MSI, PCI-E
config space, we can have the e1000 driver use those instead of it's
custom implementation.

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

2 files changed, 2 insertions, 57 deletions

diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index 689f158a469e..dd4b728ac4b5 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -337,7 +337,6 @@ struct e1000_adapter {
         struct e1000_rx_ring test_rx_ring;
 
 
-        uint32_t *config_space;
         int msg_enable;
 #ifdef CONFIG_PCI_MSI
         boolean_t have_msi;
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index f293690b8fc2..a71023741c3a 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -5071,58 +5071,6 @@ e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx)
         return 0;
 }
 
-#ifdef CONFIG_PM
-/* Save/restore 16 or 64 dwords of PCI config space depending on which
- * bus we're on (PCI(X) vs. PCI-E)
- */
-#define PCIE_CONFIG_SPACE_LEN 256
-#define PCI_CONFIG_SPACE_LEN 64
-static int
-e1000_pci_save_state(struct e1000_adapter *adapter)
-{
-        struct pci_dev *dev = adapter->pdev;
-        int size;
-        int i;
-
-        if (adapter->hw.mac_type >= e1000_82571)
-                size = PCIE_CONFIG_SPACE_LEN;
-        else
-                size = PCI_CONFIG_SPACE_LEN;
-
-        WARN_ON(adapter->config_space != NULL);
-
-        adapter->config_space = kmalloc(size, GFP_KERNEL);
-        if (!adapter->config_space) {
-                DPRINTK(PROBE, ERR, "unable to allocate %d bytes\n", size);
-                return -ENOMEM;
-        }
-        for (i = 0; i < (size / 4); i++)
-                pci_read_config_dword(dev, i * 4, &adapter->config_space[i]);
-        return 0;
-}
-
-static void
-e1000_pci_restore_state(struct e1000_adapter *adapter)
-{
-        struct pci_dev *dev = adapter->pdev;
-        int size;
-        int i;
-
-        if (adapter->config_space == NULL)
-                return;
-
-        if (adapter->hw.mac_type >= e1000_82571)
-                size = PCIE_CONFIG_SPACE_LEN;
-        else
-                size = PCI_CONFIG_SPACE_LEN;
-        for (i = 0; i < (size / 4); i++)
-                pci_write_config_dword(dev, i * 4, adapter->config_space[i]);
-        kfree(adapter->config_space);
-        adapter->config_space = NULL;
-        return;
-}
-#endif /* CONFIG_PM */
-
 static int
 e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 {
@@ -5142,9 +5090,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
         }
 
 #ifdef CONFIG_PM
-        /* Implement our own version of pci_save_state(pdev) because pci-
-         * express adapters have 256-byte config spaces. */
-        retval = e1000_pci_save_state(adapter);
+        retval = pci_save_state(pdev);
         if (retval)
                 return retval;
 #endif
@@ -5231,7 +5177,7 @@ e1000_resume(struct pci_dev *pdev)
         uint32_t err;
 
         pci_set_power_state(pdev, PCI_D0);
-        e1000_pci_restore_state(adapter);
+        pci_restore_state(pdev);
         if ((err = pci_enable_device(pdev))) {
                 printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n");
                 return err;