1 files changed, 36 insertions, 27 deletions

diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 6e684f3d377c..43c1515a8319 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -681,6 +681,40 @@ static void _mv88e6xxx_get_strings(struct dsa_switch *ds,
 	}
 }
 
+static uint64_t _mv88e6xxx_get_ethtool_stat(struct dsa_switch *ds,
+					    int stat,
+					    struct mv88e6xxx_hw_stat *stats,
+					    int port)
+{
+	struct mv88e6xxx_hw_stat *s = stats + stat;
+	u32 low;
+	u32 high = 0;
+	int ret;
+	u64 value;
+
+	if (s->reg >= 0x100) {
+		ret = _mv88e6xxx_reg_read(ds, REG_PORT(port),
+					  s->reg - 0x100);
+		if (ret < 0)
+			return UINT64_MAX;
+
+		low = ret;
+		if (s->sizeof_stat == 4) {
+			ret = _mv88e6xxx_reg_read(ds, REG_PORT(port),
+						  s->reg - 0x100 + 1);
+			if (ret < 0)
+				return UINT64_MAX;
+			high = ret;
+		}
+	} else {
+		_mv88e6xxx_stats_read(ds, s->reg, &low);
+		if (s->sizeof_stat == 8)
+			_mv88e6xxx_stats_read(ds, s->reg + 1, &high);
+	}
+	value = (((u64)high) << 16) | low;
+	return value;
+}
+
 static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
 					 int nr_stats,
 					 struct mv88e6xxx_hw_stat *stats,
@@ -699,34 +733,9 @@ static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
 	}
 
 	/* Read each of the counters. */
-	for (i = 0; i < nr_stats; i++) {
-		struct mv88e6xxx_hw_stat *s = stats + i;
-		u32 low;
-		u32 high = 0;
+	for (i = 0; i < nr_stats; i++)
+		data[i] = _mv88e6xxx_get_ethtool_stat(ds, i, stats, port);
 
-		if (s->reg >= 0x100) {
-			ret = _mv88e6xxx_reg_read(ds, REG_PORT(port),
-						  s->reg - 0x100);
-			if (ret < 0)
-				goto error;
-			low = ret;
-			if (s->sizeof_stat == 4) {
-				ret = _mv88e6xxx_reg_read(ds, REG_PORT(port),
-							  s->reg - 0x100 + 1);
-				if (ret < 0)
-					goto error;
-				high = ret;
-			}
-			data[i] = (((u64)high) << 16) | low;
-			continue;
-		}
-		_mv88e6xxx_stats_read(ds, s->reg, &low);
-		if (s->sizeof_stat == 8)
-			_mv88e6xxx_stats_read(ds, s->reg + 1, &high);
-
-		data[i] = (((u64)high) << 32) | low;
-	}
-error:
 	mutex_unlock(&ps->smi_mutex);
 }