net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency

The other dst_cache_{get,set}_ip{4,6} functions, and the doc comment for
dst_cache_set_ip6 use 'saddr' for their source address parameter. Rename
the parameter to increase consistency.

This fixes the following kernel-doc warnings:

./include/net/dst_cache.h:58: warning: Function parameter or member 'addr' not described in 'dst_cache_set_ip6'
./include/net/dst_cache.h:58: warning: Excess function parameter 'saddr' description in 'dst_cache_set_ip6'

Fixes: 911362c7 ("net: add dst_cache support")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/dst_cache.h

@@ -54,7 +54,7 @@ void dst_cache_set_ip4(struct dst_cache *dst_cache, struct dst_entry *dst,
  *	local BH must be disabled.
  */
 void dst_cache_set_ip6(struct dst_cache *dst_cache, struct dst_entry *dst,
-		       const struct in6_addr *addr);
+		       const struct in6_addr *saddr);
 
 /**
  *	dst_cache_get_ip6 - perform cache lookup and fetch ipv6 source address

net/core/dst_cache.c

@@ -107,7 +107,7 @@ EXPORT_SYMBOL_GPL(dst_cache_set_ip4);
 
 #if IS_ENABLED(CONFIG_IPV6)
 void dst_cache_set_ip6(struct dst_cache *dst_cache, struct dst_entry *dst,
-		       const struct in6_addr *addr)
+		       const struct in6_addr *saddr)
 {
 	struct dst_cache_pcpu *idst;
 
@@ -117,7 +117,7 @@ void dst_cache_set_ip6(struct dst_cache *dst_cache, struct dst_entry *dst,
 	idst = this_cpu_ptr(dst_cache->cache);
 	dst_cache_per_cpu_dst_set(this_cpu_ptr(dst_cache->cache), dst,
 				  rt6_get_cookie((struct rt6_info *)dst));
-	idst->in6_saddr = *addr;
+	idst->in6_saddr = *saddr;
 }
 EXPORT_SYMBOL_GPL(dst_cache_set_ip6);