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batman-adv: create a common substructure for tt_global/local_entry

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Several functions in the translation table management code assume that the
tt_global_entry and tt_local_entry structures have the same initial fields such
as 'addr' and 'hash_entry'. To improve the code readability and to avoid
mistakes in later changes, a common substructure that substitute the shared
fields has been introduced (struct tt_common_entry).

Thanks to this modification, it has also been possible to slightly reduce the
code length by merging some functions like compare_ltt/gtt() and
tt_local/global_hash_find()

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Antonio Quartulli
2011-10-30 12:17:33 +01:00
committed by Sven Eckelmann
parent ad24431277
commit 48100bac89
3 changed files with 167 additions and 140 deletions
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net/batman-adv/translation-table.c
+157 -130
View File
File diff suppressed because it is too large Load Diff
net/batman-adv/types.h
+7 -7
View File
@@ -222,24 +222,24 @@ struct socket_packet {
struct icmp_packet_rr icmp_packet;
};
struct tt_local_entry {
struct tt_common_entry {
uint8_t addr[ETH_ALEN];
struct hlist_node hash_entry;
unsigned long last_seen;
uint16_t flags;
atomic_t refcount;
struct rcu_head rcu;
};
struct tt_local_entry {
struct tt_common_entry common;
unsigned long last_seen;
};
struct tt_global_entry {
uint8_t addr[ETH_ALEN];
struct hlist_node hash_entry; /* entry in the global table */
struct tt_common_entry common;
struct orig_node *orig_node;
uint8_t ttvn;
uint16_t flags; /* only TT_GLOBAL_ROAM is used */
unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */
atomic_t refcount;
struct rcu_head rcu;
};
struct tt_change_node {
net/batman-adv/vis.c
+3 -3
View File
@@ -609,7 +609,7 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
struct vis_info *info = bat_priv->my_vis_info;
struct vis_packet *packet = (struct vis_packet *)info->skb_packet->data;
struct vis_info_entry *entry;
struct tt_local_entry *tt_local_entry;
struct tt_common_entry *tt_common_entry;
int best_tq = -1;
uint32_t i;
@@ -672,13 +672,13 @@ next:
head = &hash->table[i];
rcu_read_lock();
hlist_for_each_entry_rcu(tt_local_entry, node, head,
hlist_for_each_entry_rcu(tt_common_entry, node, head,
hash_entry) {
entry = (struct vis_info_entry *)
skb_put(info->skb_packet,
sizeof(*entry));
memset(entry->src, 0, ETH_ALEN);
memcpy(entry->dest, tt_local_entry->addr, ETH_ALEN);
memcpy(entry->dest, tt_common_entry->addr, ETH_ALEN);
entry->quality = 0; /* 0 means TT */
packet->entries++;