Re: [PATCH 2/5] net: emaclite: Balance braces in else statement

On Mon, 2018-06-18 at 17:20 +0530, Radhey Shyam Pandey wrote:

Remove else as it is not required with if doing a return.
Fixes below checkpatch warning.

WARNING: else is not generally useful after a break or return

checkpatch is stupid and doesn't understand code flow.
Always try to improve code flow instead of merely
following brainless instructions from a script.

So:

[]

If you really want to redo this function, perhaps something like:

static void xemaclite_tx_handler(struct net_device *dev)
{
	struct net_local *lp = netdev_priv(dev);

	dev->stats.tx_packets++;

	if (!lp->deferred_skb)
		return;

	if (xemaclite_send_data(lp, (u8 *)lp->deferred_skb->data,
				lp->deferred_skb->len))
		return;

	dev->stats.tx_bytes += lp->deferred_skb->len;
	dev_kfree_skb_irq(lp->deferred_skb);
	lp->deferred_skb = NULL;
	netif_trans_update(dev); /* prevent tx timeout */
	netif_wake_queue(dev);
}
 

And this function has backward logic as the failure paths
are the ones that should return early or use a goto.

Perhaps something like:

static bool get_bool(struct platform_device *ofdev, const char *s)
{
	u32 *p = (u32 *)of_get_property(ofdev->dev.of_node, s, NULL);

	if (!p) {
		dev_warn(&ofdev->dev,
			 "Parameter '%s' not found, defaulting to false\n", s);
		return false;
	}

	return *p;
}