From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Wunderlich Subject: [PATCH 02/19] batman-adv: Deinline batadv_orig_hash_find, save 7339 bytes Date: Wed, 20 Dec 2017 12:01:07 +0100 Message-ID: <20171220110124.13117-3-sw@simonwunderlich.de> References: <20171220110124.13117-1-sw@simonwunderlich.de> Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Denys Vlasenko , Sven Eckelmann , Simon Wunderlich To: davem@davemloft.net Return-path: Received: from packetmixer.de ([79.140.42.25]:35552 "EHLO mail.mail.packetmixer.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755168AbdLTLBb (ORCPT ); Wed, 20 Dec 2017 06:01:31 -0500 In-Reply-To: <20171220110124.13117-1-sw@simonwunderlich.de> Sender: netdev-owner@vger.kernel.org List-ID: From: Denys Vlasenko This function compiles to 288 bytes of machine code for Linux 4.14 on Debian Stretch amd64 and (6.3.0-18) with the default configuration. 27 callsites (25 used in default config). text data bss dec hex filename 179291 10317 4416 194024 2f5e8 batman-adv.ko.pre 171952 10317 4416 186685 2d93d batman-adv.ko.post Signed-off-by: Denys Vlasenko [sven@narfation.org: Fix includes, correct sizes+counts in commit message] Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/originator.c | 32 ++++++++++++++++++++++++++++++++ net/batman-adv/originator.h | 37 ++----------------------------------- 2 files changed, 34 insertions(+), 35 deletions(-) diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index 2967b86c13da..0a565d0422bb 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -30,10 +30,12 @@ #include #include #include +#include #include #include #include #include +#include #include #include #include @@ -55,6 +57,36 @@ /* hash class keys */ static struct lock_class_key batadv_orig_hash_lock_class_key; +struct batadv_orig_node * +batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data) +{ + struct batadv_hashtable *hash = bat_priv->orig_hash; + struct hlist_head *head; + struct batadv_orig_node *orig_node, *orig_node_tmp = NULL; + int index; + + if (!hash) + return NULL; + + index = batadv_choose_orig(data, hash->size); + head = &hash->table[index]; + + rcu_read_lock(); + hlist_for_each_entry_rcu(orig_node, head, hash_entry) { + if (!batadv_compare_eth(orig_node, data)) + continue; + + if (!kref_get_unless_zero(&orig_node->refcount)) + continue; + + orig_node_tmp = orig_node; + break; + } + rcu_read_unlock(); + + return orig_node_tmp; +} + static void batadv_purge_orig(struct work_struct *work); /** diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h index d94220a6d21a..40c7f039d5d7 100644 --- a/net/batman-adv/originator.h +++ b/net/batman-adv/originator.h @@ -23,14 +23,8 @@ #include #include #include -#include -#include -#include -#include #include -#include "hash.h" - struct netlink_callback; struct seq_file; struct sk_buff; @@ -100,34 +94,7 @@ static inline u32 batadv_choose_orig(const void *data, u32 size) return hash % size; } -static inline struct batadv_orig_node * -batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data) -{ - struct batadv_hashtable *hash = bat_priv->orig_hash; - struct hlist_head *head; - struct batadv_orig_node *orig_node, *orig_node_tmp = NULL; - int index; - - if (!hash) - return NULL; - - index = batadv_choose_orig(data, hash->size); - head = &hash->table[index]; - - rcu_read_lock(); - hlist_for_each_entry_rcu(orig_node, head, hash_entry) { - if (!batadv_compare_eth(orig_node, data)) - continue; - - if (!kref_get_unless_zero(&orig_node->refcount)) - continue; - - orig_node_tmp = orig_node; - break; - } - rcu_read_unlock(); - - return orig_node_tmp; -} +struct batadv_orig_node * +batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data); #endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */ -- 2.11.0