net: Fix (nearly-)kernel-doc comments for various functions

Fix incorrect start markers, wrapped summary lines, missing section
breaks, incorrect separators, and some name mismatches.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ethernet/eth.c

@@ -232,6 +232,7 @@ EXPORT_SYMBOL(eth_header_parse);
  * @neigh: source neighbour
  * @hh: destination cache entry
  * @type: Ethernet type field
+ *
  * Create an Ethernet header template from the neighbour.
  */
 int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh, __be16 type)
@@ -274,6 +275,7 @@ EXPORT_SYMBOL(eth_header_cache_update);
  * eth_mac_addr - set new Ethernet hardware address
  * @dev: network device
  * @p: socket address
+ *
  * Change hardware address of device.
  *
  * This doesn't change hardware matching, so needs to be overridden
@@ -331,6 +333,7 @@ const struct header_ops eth_header_ops ____cacheline_aligned = {
 /**
  * ether_setup - setup Ethernet network device
  * @dev: network device
+ *
  * Fill in the fields of the device structure with Ethernet-generic values.
  */
 void ether_setup(struct net_device *dev)