docs: net: use C syntax highlight in driver.rst

Use syntax highlight, comment out the "..." since they are
not valid C.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/Documentation/networking/driver.rst b/Documentation/networking/driver.rst
index bfbd668..19c3632 100644 (file)
--- a/Documentation/networking/driver.rst
+++ b/Documentation/networking/driver.rst
@@ -43,7 +43,9 @@ there is no way your device can tell ahead of time when its
 transmit function will become busy.
 
 Instead it must maintain the queue properly.  For example,
-for a driver implementing scatter-gather this means::
+for a driver implementing scatter-gather this means:
+
+.. code-block:: c
 
        static netdev_tx_t drv_hard_start_xmit(struct sk_buff *skb,
                                               struct net_device *dev)
@@ -51,7 +53,7 @@ for a driver implementing scatter-gather this means::
                struct drv *dp = netdev_priv(dev);
 
                lock_tx(dp);
-               ...
+               //...
                /* This is a hard error log it. */
                if (TX_BUFFS_AVAIL(dp) <= (skb_shinfo(skb)->nr_frags + 1)) {
                        netif_stop_queue(dev);
@@ -61,34 +63,42 @@ for a driver implementing scatter-gather this means::
                        return NETDEV_TX_BUSY;
                }
 
-               ... queue packet to card ...
-               ... update tx consumer index ...
+               //... queue packet to card ...
+               //... update tx consumer index ...
 
                if (TX_BUFFS_AVAIL(dp) <= (MAX_SKB_FRAGS + 1))
                        netif_stop_queue(dev);
 
-               ...
+               //...
                unlock_tx(dp);
-               ...
+               //...
                return NETDEV_TX_OK;
        }
 
-And then at the end of your TX reclamation event handling::
+And then at the end of your TX reclamation event handling:
+
+.. code-block:: c
 
        if (netif_queue_stopped(dp->dev) &&
            TX_BUFFS_AVAIL(dp) > (MAX_SKB_FRAGS + 1))
                netif_wake_queue(dp->dev);
 
-For a non-scatter-gather supporting card, the three tests simply become::
+For a non-scatter-gather supporting card, the three tests simply become:
+
+.. code-block:: c
 
                /* This is a hard error log it. */
                if (TX_BUFFS_AVAIL(dp) <= 0)
 
-and::
+and:
+
+.. code-block:: c
 
                if (TX_BUFFS_AVAIL(dp) == 0)
 
-and::
+and:
+
+.. code-block:: c
 
        if (netif_queue_stopped(dp->dev) &&
            TX_BUFFS_AVAIL(dp) > 0)