diff mbox series

[net-next,2/4] r8169: simplify counter handling

Message ID 60f2357b-cb6b-8939-e6d1-0431b6243eb3@gmail.com
State New
Headers show
Series None | expand

Commit Message

Heiner Kallweit May 1, 2020, 5:23 p.m. UTC
The counter handling functions can only fail if rtl8169_do_counters()
times out. In the poll function we emit an error message in case of
timeout, therefore we don't have to propagate the timeout all the
way up just to print another message basically saying the same.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 38 ++++++++---------------
 1 file changed, 13 insertions(+), 25 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index bfa199b36..1c2ea7506 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -1625,7 +1625,7 @@  DECLARE_RTL_COND(rtl_counters_cond)
 	return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
 }
 
-static bool rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
+static void rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
 {
 	dma_addr_t paddr = tp->counters_phys_addr;
 	u32 cmd;
@@ -1636,22 +1636,20 @@  static bool rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
 	RTL_W32(tp, CounterAddrLow, cmd);
 	RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
 
-	return rtl_udelay_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
+	rtl_udelay_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
 }
 
-static bool rtl8169_reset_counters(struct rtl8169_private *tp)
+static void rtl8169_reset_counters(struct rtl8169_private *tp)
 {
 	/*
 	 * Versions prior to RTL_GIGA_MAC_VER_19 don't support resetting the
 	 * tally counters.
 	 */
-	if (tp->mac_version < RTL_GIGA_MAC_VER_19)
-		return true;
-
-	return rtl8169_do_counters(tp, CounterReset);
+	if (tp->mac_version >= RTL_GIGA_MAC_VER_19)
+		rtl8169_do_counters(tp, CounterReset);
 }
 
-static bool rtl8169_update_counters(struct rtl8169_private *tp)
+static void rtl8169_update_counters(struct rtl8169_private *tp)
 {
 	u8 val = RTL_R8(tp, ChipCmd);
 
@@ -1659,16 +1657,13 @@  static bool rtl8169_update_counters(struct rtl8169_private *tp)
 	 * Some chips are unable to dump tally counters when the receiver
 	 * is disabled. If 0xff chip may be in a PCI power-save state.
 	 */
-	if (!(val & CmdRxEnb) || val == 0xff)
-		return true;
-
-	return rtl8169_do_counters(tp, CounterDump);
+	if (val & CmdRxEnb && val != 0xff)
+		rtl8169_do_counters(tp, CounterDump);
 }
 
-static bool rtl8169_init_counter_offsets(struct rtl8169_private *tp)
+static void rtl8169_init_counter_offsets(struct rtl8169_private *tp)
 {
 	struct rtl8169_counters *counters = tp->counters;
-	bool ret = false;
 
 	/*
 	 * rtl8169_init_counter_offsets is called from rtl_open.  On chip
@@ -1686,22 +1681,16 @@  static bool rtl8169_init_counter_offsets(struct rtl8169_private *tp)
 	 */
 
 	if (tp->tc_offset.inited)
-		return true;
-
-	/* If both, reset and update fail, propagate to caller. */
-	if (rtl8169_reset_counters(tp))
-		ret = true;
+		return;
 
-	if (rtl8169_update_counters(tp))
-		ret = true;
+	rtl8169_reset_counters(tp);
+	rtl8169_update_counters(tp);
 
 	tp->tc_offset.tx_errors = counters->tx_errors;
 	tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
 	tp->tc_offset.tx_aborted = counters->tx_aborted;
 	tp->tc_offset.rx_missed = counters->rx_missed;
 	tp->tc_offset.inited = true;
-
-	return ret;
 }
 
 static void rtl8169_get_ethtool_stats(struct net_device *dev,
@@ -4759,8 +4748,7 @@  static int rtl_open(struct net_device *dev)
 
 	rtl_hw_start(tp);
 
-	if (!rtl8169_init_counter_offsets(tp))
-		netif_warn(tp, hw, dev, "counter reset/update failed\n");
+	rtl8169_init_counter_offsets(tp);
 
 	phy_start(tp->phydev);
 	netif_start_queue(dev);