From: Chris Metcalf <redacted>
Date: Fri, 30 Mar 2012 19:23:35 -0400

This commit fixes a number of issues seen with the driver:

- Improve handling of return credits to the hardware shim
- Use skb_frag_size() appropriately
- Add netpoll support to run console over UDP

Signed-off-by: Chris Metcalf <redacted>

Please do not mix pure bug fixes and new features.

Submit the pure bug fixes separately for 'net' tree submission
and then submit feature additions like netpoll support in
a patch targetting the 'net-next' tree.

+	/* Handle completions if needed to make room. */
+	/* NOTE: Return NETDEV_TX_BUSY if there is still no room. */

Do not format comments like this, use something like this instead:

	/* Handle completions if needed to make room.
	 * NOTE: Return NETDEV_TX_BUSY if there is still no room.
	 */

 	/* Prepare to advance, detecting full queue. */
+	/* NOTE: Return NETDEV_TX_BUSY if the queue is full. */

Similarly, combine them up into a single comment.

+	/* Handle completions if needed to make room. */
+	/* NOTE: Return NETDEV_TX_BUSY if there is still no room. */

Same here.

 	/* Copy the commands, or fail. */
+	/* NOTE: Return NETDEV_TX_BUSY if the queue is full. */

Again.

+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs

Format the comment:

	/* Like
	 * this.
	 */

not:

	/*
	 * Like
	 * this.
	 */