diff --git a/[refs] b/[refs]
index eee9175e8193..9b44ad59b634 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2553bb2681645bf932db2845121b8f33954f6f39
+refs/heads/master: 6deac6f2b46f84b8822683cce92eab4edf2ade5e
diff --git a/trunk/drivers/net/igb/e1000_mac.c b/trunk/drivers/net/igb/e1000_mac.c
index 4969a5b1cf3c..2ad358a240bf 100644
--- a/trunk/drivers/net/igb/e1000_mac.c
+++ b/trunk/drivers/net/igb/e1000_mac.c
@@ -247,8 +247,15 @@ void igb_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
 	if (rar_low || rar_high)
 		rar_high |= E1000_RAH_AV;
 
+	/*
+	 * Some bridges will combine consecutive 32-bit writes into
+	 * a single burst write, which will malfunction on some parts.
+	 * The flushes avoid this.
+	 */
 	wr32(E1000_RAL(index), rar_low);
+	wrfl();
 	wr32(E1000_RAH(index), rar_high);
+	wrfl();
 }
 
 /**