diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index c4f193e..8483664 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -5822,8 +5822,7 @@
 		/* Make sure new skb does not cross any 4G boundaries.
 		 * Drop the packet if it does.
 		 */
-		} else if (tg3_flag(tp, 4G_DMA_BNDRY_BUG) &&
-			   tg3_4g_overflow_test(new_addr, new_skb->len)) {
+		} else if (tg3_4g_overflow_test(new_addr, new_skb->len)) {
 			pci_unmap_single(tp->pdev, new_addr, new_skb->len,
 					 PCI_DMA_TODEVICE);
 			ret = -1;
@@ -6018,8 +6017,7 @@
 	if (tg3_flag(tp, SHORT_DMA_BUG) && len <= 8)
 		would_hit_hwbug = 1;
 
-	if (tg3_flag(tp, 4G_DMA_BNDRY_BUG) &&
-	    tg3_4g_overflow_test(mapping, len))
+	if (tg3_4g_overflow_test(mapping, len))
 		would_hit_hwbug = 1;
 
 	if (tg3_40bit_overflow_test(tp, mapping, len))
@@ -6055,8 +6053,7 @@
 			    len <= 8)
 				would_hit_hwbug = 1;
 
-			if (tg3_flag(tp, 4G_DMA_BNDRY_BUG) &&
-			    tg3_4g_overflow_test(mapping, len))
+			if (tg3_4g_overflow_test(mapping, len))
 				would_hit_hwbug = 1;
 
 			if (tg3_40bit_overflow_test(tp, mapping, len))
@@ -13703,11 +13700,6 @@
 		}
 	}
 
-	/* All chips can get confused if TX buffers
-	 * straddle the 4GB address boundary.
-	 */
-	tg3_flag_set(tp, 4G_DMA_BNDRY_BUG);
-
 	if (tg3_flag(tp, 5755_PLUS))
 		tg3_flag_set(tp, SHORT_DMA_BUG);
 
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 4f5dbf6..fc33566 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2896,7 +2896,6 @@
 	TG3_FLAG_NO_NVRAM,
 	TG3_FLAG_ENABLE_RSS,
 	TG3_FLAG_ENABLE_TSS,
-	TG3_FLAG_4G_DMA_BNDRY_BUG,
 	TG3_FLAG_SHORT_DMA_BUG,
 	TG3_FLAG_USE_JUMBO_BDFLAG,
 	TG3_FLAG_L1PLLPD_EN,