From: Sven Eckelmann sven@narfation.org
Some functions already have documentation about locks they require inside their kerneldoc header. These can be directly tested during runtime using the lockdep asserts.
Signed-off-by: Sven Eckelmann sven@narfation.org Signed-off-by: Marek Lindner mareklindner@neomailbox.ch Signed-off-by: Antonio Quartulli antonio@meshcoding.com --- net/batman-adv/fragmentation.c | 3 +++ net/batman-adv/multicast.c | 6 ++++++ net/batman-adv/translation-table.c | 2 ++ 3 files changed, 11 insertions(+)
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c index ec5f7bc..700c96c 100644 --- a/net/batman-adv/fragmentation.c +++ b/net/batman-adv/fragmentation.c @@ -25,6 +25,7 @@ #include <linux/if_ether.h> #include <linux/jiffies.h> #include <linux/kernel.h> +#include <linux/lockdep.h> #include <linux/netdevice.h> #include <linux/pkt_sched.h> #include <linux/skbuff.h> @@ -112,6 +113,8 @@ static int batadv_frag_size_limit(void) static bool batadv_frag_init_chain(struct batadv_frag_table_entry *chain, u16 seqno) { + lockdep_assert_held(&chain->lock); + if (chain->seqno == seqno) return false;
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index 410f34c..eb76386 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -609,6 +609,8 @@ static void batadv_mcast_want_unsnoop_update(struct batadv_priv *bat_priv, struct hlist_node *node = &orig->mcast_want_all_unsnoopables_node; struct hlist_head *head = &bat_priv->mcast.want_all_unsnoopables_list;
+ lockdep_assert_held(&orig->mcast_handler_lock); + /* switched from flag unset to set */ if (mcast_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES && !(orig->mcast_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES)) { @@ -652,6 +654,8 @@ static void batadv_mcast_want_ipv4_update(struct batadv_priv *bat_priv, struct hlist_node *node = &orig->mcast_want_all_ipv4_node; struct hlist_head *head = &bat_priv->mcast.want_all_ipv4_list;
+ lockdep_assert_held(&orig->mcast_handler_lock); + /* switched from flag unset to set */ if (mcast_flags & BATADV_MCAST_WANT_ALL_IPV4 && !(orig->mcast_flags & BATADV_MCAST_WANT_ALL_IPV4)) { @@ -695,6 +699,8 @@ static void batadv_mcast_want_ipv6_update(struct batadv_priv *bat_priv, struct hlist_node *node = &orig->mcast_want_all_ipv6_node; struct hlist_head *head = &bat_priv->mcast.want_all_ipv6_list;
+ lockdep_assert_held(&orig->mcast_handler_lock); + /* switched from flag unset to set */ if (mcast_flags & BATADV_MCAST_WANT_ALL_IPV6 && !(orig->mcast_flags & BATADV_MCAST_WANT_ALL_IPV6)) { diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 79cee7b..4228b10 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -3271,6 +3271,8 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv) */ static void batadv_tt_local_commit_changes_nolock(struct batadv_priv *bat_priv) { + lockdep_assert_held(&bat_priv->tt.commit_lock); + /* Update multicast addresses in local translation table */ batadv_mcast_mla_update(bat_priv);