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batman-adv: update kernel doc of batadv_tt_global_del_orig_entry()

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The updated kernel doc & additional comment shall prevent accidental
copy & paste errors or calling the function without the required
precautions.

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
This commit is contained in:
Marek Lindner 2015-06-18 16:11:07 +08:00 committed by Antonio Quartulli
parent 4f248cff9e
commit 433ff98f3f
1 changed files with 12 additions and 6 deletions
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18
net/batman-adv/translation-table.c
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@ -1658,20 +1658,26 @@ out:
}
/**
* batadv_tt_global_del_orig_entry - remove and free an orig_entry
* _batadv_tt_global_del_orig_entry - remove and free an orig_entry
* @tt_global_entry: the global entry to remove the orig_entry from
* @orig_entry: the orig entry to remove and free
*
* Remove an orig_entry from its list in the given tt_global_entry and
* free this orig_entry afterwards.
*
* Caller must hold tt_global_entry->list_lock and ensure orig_entry->list is
* part of a list.
*/
static void
batadv_tt_global_del_orig_entry(struct batadv_tt_global_entry *tt_global_entry,
struct batadv_tt_orig_list_entry *orig_entry)
_batadv_tt_global_del_orig_entry(struct batadv_tt_global_entry *tt_global_entry,
struct batadv_tt_orig_list_entry *orig_entry)
{
batadv_tt_global_size_dec(orig_entry->orig_node,
tt_global_entry->common.vid);
atomic_dec(&tt_global_entry->orig_list_count);
/* requires holding tt_global_entry->list_lock and orig_entry->list
* being part of a list
*/
hlist_del_rcu(&orig_entry->list);
batadv_tt_orig_list_entry_free_ref(orig_entry);
}
@ -1687,7 +1693,7 @@ batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry)
spin_lock_bh(&tt_global_entry->list_lock);
head = &tt_global_entry->orig_list;
hlist_for_each_entry_safe(orig_entry, safe, head, list)
batadv_tt_global_del_orig_entry(tt_global_entry, orig_entry);
_batadv_tt_global_del_orig_entry(tt_global_entry, orig_entry);
spin_unlock_bh(&tt_global_entry->list_lock);
}
@ -1722,8 +1728,8 @@ batadv_tt_global_del_orig_node(struct batadv_priv *bat_priv,
orig_node->orig,
tt_global_entry->common.addr,
BATADV_PRINT_VID(vid), message);
batadv_tt_global_del_orig_entry(tt_global_entry,
orig_entry);
_batadv_tt_global_del_orig_entry(tt_global_entry,
orig_entry);
}
}
spin_unlock_bh(&tt_global_entry->list_lock);