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>
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index b4ac39f..5716c6b 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -524,8 +524,8 @@
 }
 #endif
 
-/*
- *	Delete a VIF entry
+/**
+ *	vif_delete - Delete a VIF entry
  *	@notify: Set to 1, if the caller is a notifier_call
  */