r8169: remove default chip versions

Even the chip versions within a family have so many differences that
using a default chip version doesn't really make sense. Instead
of leaving a best case flaky network connectivity, bail out and
report the unknown chip version.

Signed-off-by: Heiner Kallweit <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

drivers/net/ethernet/realtek/r8169.c

@@ -2011,8 +2011,7 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
  .set_link_ksettings = phy_ethtool_set_link_ksettings,
 };
 
-static void rtl8169_get_mac_version(struct rtl8169_private *tp,
- u8 default_version)
+static void rtl8169_get_mac_version(struct rtl8169_private *tp)
 {
  /*
  * The driver currently handles the 8168Bf and the 8168Be identically
@@ -2116,9 +2115,7 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
  tp->mac_version = p->mac_version;
 
  if (tp->mac_version == RTL_GIGA_MAC_NONE) {
- dev_notice(tp_to_dev(tp),
- "unknown MAC, using family default\n");
- tp->mac_version = default_version;
+ dev_err(tp_to_dev(tp), "unknown chip XID %03x\n", reg & 0xfcf);
  } else if (tp->mac_version == RTL_GIGA_MAC_VER_42) {
  tp->mac_version = tp->supports_gmii ?
  RTL_GIGA_MAC_VER_42 :
@@ -6976,27 +6973,23 @@ static const struct rtl_cfg_info {
  u16 irq_mask;
  unsigned int has_gmii:1;
  const struct rtl_coalesce_info *coalesce_info;
- u8 default_ver;
 } rtl_cfg_infos [] = {
  [RTL_CFG_0] = {
  .hw_start = rtl_hw_start_8169,
  .irq_mask = SYSErr | LinkChg | RxOverflow | RxFIFOOver,
  .has_gmii = 1,
  .coalesce_info = rtl_coalesce_info_8169,
- .default_ver = RTL_GIGA_MAC_VER_01,
  },
  [RTL_CFG_1] = {
  .hw_start = rtl_hw_start_8168,
  .irq_mask = LinkChg | RxOverflow,
  .has_gmii = 1,
  .coalesce_info = rtl_coalesce_info_8168_8136,
- .default_ver = RTL_GIGA_MAC_VER_11,
  },
  [RTL_CFG_2] = {
  .hw_start = rtl_hw_start_8101,
  .irq_mask = LinkChg | RxOverflow | RxFIFOOver,
  .coalesce_info = rtl_coalesce_info_8168_8136,
- .default_ver = RTL_GIGA_MAC_VER_13,
  }
 };
 
@@ -7259,7 +7252,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
  tp->mmio_addr = pcim_iomap_table(pdev)[region];
 
  /* Identify chip attached to board */
- rtl8169_get_mac_version(tp, cfg->default_ver);
+ rtl8169_get_mac_version(tp);
+ if (tp->mac_version == RTL_GIGA_MAC_NONE)
+ return -ENODEV;
 
  if (rtl_tbi_enabled(tp)) {
  dev_err(&pdev->dev, "TBI fiber mode not supported\n");