2 files changed, 5 insertions, 3 deletions

diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c
index af7499445bb1..40ce90dedb02 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -1807,9 +1807,9 @@ static int ipg_nic_open(struct net_device *dev)
         sp->jumbo.found_start = 0;
         sp->jumbo.current_size = 0;
         sp->jumbo.skb = NULL;
-#ifdef JUMBO_FRAME
-        dev->mtu = IPG_TXFRAG_SIZE;
-#endif
+
+        if (IPG_TXFRAG_SIZE)
+                dev->mtu = IPG_TXFRAG_SIZE;
 
         /* Enable transmit and receive operation of the IPG. */
         ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_RX_ENABLE | IPG_MC_TX_ENABLE) &
diff --git a/drivers/net/ipg.h b/drivers/net/ipg.h
index 446f3663ae6a..9c520ce264a6 100644
--- a/drivers/net/ipg.h
+++ b/drivers/net/ipg.h
@@ -598,6 +598,8 @@ enum ipg_regs {
 #ifdef JUMBO_FRAME
 /* IPG_TXFRAG_SIZE must <= 0x2b00, or TX will crash */
 #define         IPG_TXFRAG_SIZE         JUMBO_FRAME_SIZE
+#else
+#define         IPG_TXFRAG_SIZE         0 /* use default MTU */
 #endif
 
 /* Size of allocated received buffers. Nominally 0x0600.