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

Fix incorrect start markers, wrapped summary lines, missing section
breaks, incorrect separators, and some name mismatches.  Delete
a few that are content-free.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 77ac41f..bb7fde4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -3132,7 +3132,7 @@
 }
 
 /**
- *  ixgbe_get_wwn_prefix_generic Get alternative WWNN/WWPN prefix from
+ *  ixgbe_get_wwn_prefix_generic - Get alternative WWNN/WWPN prefix from
  *  the EEPROM
  *  @hw: pointer to hardware structure
  *  @wwnn_prefix: the alternative WWNN prefix
@@ -3325,6 +3325,7 @@
  *  ixgbe_calculate_checksum - Calculate checksum for buffer
  *  @buffer: pointer to EEPROM
  *  @length: size of EEPROM to calculate a checksum for
+ *
  *  Calculates the checksum for some buffer on a specified length.  The
  *  checksum calculated is returned.
  **/