ethernet/sun: fix repeated words in comments

Delete the redundant word 'the'.
Delete the redundant word 'is'.
Delete the redundant word 'start'.
Delete the redundant word 'checking'.

Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Link: https://lore.kernel.org/r/20220630130916.21074-1-yuanjilin@cdjrlc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/sun/cassini.c

@@ -29,7 +29,7 @@
  *  -- on page reclamation, the driver swaps the page with a spare page.
  *     if that page is still in use, it frees its reference to that page,
  *     and allocates a new page for use. otherwise, it just recycles the
- *     the page.
+ *     page.
  *
  * NOTE: cassini can parse the header. however, it's not worth it
  *       as long as the network stack requires a header copy.

drivers/net/ethernet/sun/cassini.h

@@ -764,7 +764,7 @@
  * PAUSE thresholds defined in terms of FIFO occupancy and may be translated
  * into FIFO vacancy using RX_FIFO_SIZE. setting ON will trigger XON frames
  * when FIFO reaches 0. OFF threshold should not be > size of RX FIFO. max
- * value is is 0x6F.
+ * value is 0x6F.
  * DEFAULT: 0x00078
  */
 #define  REG_RX_PAUSE_THRESH               0x4020  /* RX pause thresholds */

drivers/net/ethernet/sun/ldmvsw.c

@@ -335,7 +335,7 @@ static int vsw_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	port->tsolen = 0;
 
 	/* Mark the port as belonging to ldmvsw which directs the
-	 * the common code to use the net_device in the vnet_port
+	 * common code to use the net_device in the vnet_port
 	 * rather than the net_device in the vnet (which is used
 	 * by sunvnet). This bit is used by the VNET_PORT_TO_NET_DEVICE
 	 * macro.

drivers/net/ethernet/sun/sungem.c

@@ -1088,7 +1088,7 @@ static netdev_tx_t gem_start_xmit(struct sk_buff *skb,
 		netif_stop_queue(dev);
 
 		/* netif_stop_queue() must be done before checking
-		 * checking tx index in TX_BUFFS_AVAIL() below, because
+		 * tx index in TX_BUFFS_AVAIL() below, because
 		 * in gem_tx(), we update tx_old before checking for
 		 * netif_queue_stopped().
 		 */