From: Sven Eckelmann Date: Sat, 12 May 2012 11:38:47 +0000 (+0200) Subject: batman-adv: Prefix bridge_loop_avoidance non-static functions with batadv_ X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=08adf1512298201a53b88bb0a3d67e0dbbe0ed9b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git batman-adv: Prefix bridge_loop_avoidance non-static functions with batadv_ batman-adv can be compiled as part of the kernel instead of an module. In that case the linker will see all non-static symbols of batman-adv and all other non-static symbols of the kernel. This could lead to symbol collisions. A prefix for the batman-adv symbols that defines their private namespace avoids such a problem. Reported-by: David Miller Signed-off-by: Sven Eckelmann --- diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c index 444d10bc9552..71b225c1b5ca 100644 --- a/net/batman-adv/bat_debugfs.c +++ b/net/batman-adv/bat_debugfs.c @@ -249,7 +249,8 @@ static int transtable_global_open(struct inode *inode, struct file *file) static int bla_claim_table_open(struct inode *inode, struct file *file) { struct net_device *net_dev = (struct net_device *)inode->i_private; - return single_open(file, bla_claim_table_seq_print_text, net_dev); + return single_open(file, batadv_bla_claim_table_seq_print_text, + net_dev); } #endif diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 314e37b272a7..b0561e338ae5 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -1019,9 +1019,9 @@ purge_now: * Update the backbone gateways when the own orig address changes. * */ -void bla_update_orig_address(struct bat_priv *bat_priv, - struct hard_iface *primary_if, - struct hard_iface *oldif) +void batadv_bla_update_orig_address(struct bat_priv *bat_priv, + struct hard_iface *primary_if, + struct hard_iface *oldif) { struct backbone_gw *backbone_gw; struct hlist_node *node; @@ -1136,7 +1136,7 @@ static struct lock_class_key claim_hash_lock_class_key; static struct lock_class_key backbone_hash_lock_class_key; /* initialize all bla structures */ -int bla_init(struct bat_priv *bat_priv) +int batadv_bla_init(struct bat_priv *bat_priv) { int i; uint8_t claim_dest[ETH_ALEN] = {0xff, 0x43, 0x05, 0x00, 0x00, 0x00}; @@ -1199,9 +1199,9 @@ int bla_init(struct bat_priv *bat_priv) * **/ -int bla_check_bcast_duplist(struct bat_priv *bat_priv, - struct bcast_packet *bcast_packet, - int hdr_size) +int batadv_bla_check_bcast_duplist(struct bat_priv *bat_priv, + struct bcast_packet *bcast_packet, + int hdr_size) { int i, length, curr; uint8_t *content; @@ -1260,7 +1260,7 @@ int bla_check_bcast_duplist(struct bat_priv *bat_priv, * */ -int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig) +int batadv_bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig) { struct hashtable_t *hash = bat_priv->backbone_hash; struct hlist_head *head; @@ -1301,8 +1301,8 @@ int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig) * returns 0. * */ -int bla_is_backbone_gw(struct sk_buff *skb, - struct orig_node *orig_node, int hdr_size) +int batadv_bla_is_backbone_gw(struct sk_buff *skb, + struct orig_node *orig_node, int hdr_size) { struct ethhdr *ethhdr; struct vlan_ethhdr *vhdr; @@ -1339,7 +1339,7 @@ int bla_is_backbone_gw(struct sk_buff *skb, } /* free all bla structures (for softinterface free or module unload) */ -void bla_free(struct bat_priv *bat_priv) +void batadv_bla_free(struct bat_priv *bat_priv) { struct hard_iface *primary_if; @@ -1374,7 +1374,7 @@ void bla_free(struct bat_priv *bat_priv) * process the skb. * */ -int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) +int batadv_bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) { struct ethhdr *ethhdr; struct claim search_claim, *claim = NULL; @@ -1463,7 +1463,7 @@ out: * process the skb. * */ -int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) +int batadv_bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) { struct ethhdr *ethhdr; struct claim search_claim, *claim = NULL; @@ -1537,7 +1537,7 @@ out: return ret; } -int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset) +int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset) { struct net_device *net_dev = (struct net_device *)seq->private; struct bat_priv *bat_priv = netdev_priv(net_dev); diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h index e39f93acc28f..546cd641012a 100644 --- a/net/batman-adv/bridge_loop_avoidance.h +++ b/net/batman-adv/bridge_loop_avoidance.h @@ -23,73 +23,76 @@ #define _NET_BATMAN_ADV_BLA_H_ #ifdef CONFIG_BATMAN_ADV_BLA -int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); -int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); -int bla_is_backbone_gw(struct sk_buff *skb, - struct orig_node *orig_node, int hdr_size); -int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset); -int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig); -int bla_check_bcast_duplist(struct bat_priv *bat_priv, - struct bcast_packet *bcast_packet, int hdr_size); -void bla_update_orig_address(struct bat_priv *bat_priv, - struct hard_iface *primary_if, - struct hard_iface *oldif); -int bla_init(struct bat_priv *bat_priv); -void bla_free(struct bat_priv *bat_priv); +int batadv_bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); +int batadv_bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); +int batadv_bla_is_backbone_gw(struct sk_buff *skb, + struct orig_node *orig_node, int hdr_size); +int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset); +int batadv_bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig); +int batadv_bla_check_bcast_duplist(struct bat_priv *bat_priv, + struct bcast_packet *bcast_packet, + int hdr_size); +void batadv_bla_update_orig_address(struct bat_priv *bat_priv, + struct hard_iface *primary_if, + struct hard_iface *oldif); +int batadv_bla_init(struct bat_priv *bat_priv); +void batadv_bla_free(struct bat_priv *bat_priv); #define BLA_CRC_INIT 0 #else /* ifdef CONFIG_BATMAN_ADV_BLA */ -static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, - short vid) +static inline int batadv_bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, + short vid) { return 0; } -static inline int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, - short vid) +static inline int batadv_bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, + short vid) { return 0; } -static inline int bla_is_backbone_gw(struct sk_buff *skb, - struct orig_node *orig_node, - int hdr_size) +static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb, + struct orig_node *orig_node, + int hdr_size) { return 0; } -static inline int bla_claim_table_seq_print_text(struct seq_file *seq, - void *offset) +static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, + void *offset) { return 0; } -static inline int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, - uint8_t *orig) +static inline int batadv_bla_is_backbone_gw_orig(struct bat_priv *bat_priv, + uint8_t *orig) { return 0; } -static inline int bla_check_bcast_duplist(struct bat_priv *bat_priv, - struct bcast_packet *bcast_packet, - int hdr_size) +static inline int +batadv_bla_check_bcast_duplist(struct bat_priv *bat_priv, + struct bcast_packet *bcast_packet, + int hdr_size) { return 0; } -static inline void bla_update_orig_address(struct bat_priv *bat_priv, - struct hard_iface *primary_if, - struct hard_iface *oldif) +static inline void +batadv_bla_update_orig_address(struct bat_priv *bat_priv, + struct hard_iface *primary_if, + struct hard_iface *oldif) { } -static inline int bla_init(struct bat_priv *bat_priv) +static inline int batadv_bla_init(struct bat_priv *bat_priv) { return 1; } -static inline void bla_free(struct bat_priv *bat_priv) +static inline void batadv_bla_free(struct bat_priv *bat_priv) { } diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index 380572e721e6..1643e7fca6c6 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -118,7 +118,7 @@ static void primary_if_update_addr(struct bat_priv *bat_priv, memcpy(vis_packet->sender_orig, primary_if->net_dev->dev_addr, ETH_ALEN); - bla_update_orig_address(bat_priv, primary_if, oldif); + batadv_bla_update_orig_address(bat_priv, primary_if, oldif); out: if (primary_if) hardif_free_ref(primary_if); diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 46a35e1c67ca..3e1bb7a1f8b4 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -125,7 +125,7 @@ int mesh_init(struct net_device *soft_iface) if (ret < 0) goto err; - ret = bla_init(bat_priv); + ret = batadv_bla_init(bat_priv); if (ret < 0) goto err; @@ -154,7 +154,7 @@ void mesh_free(struct net_device *soft_iface) tt_free(bat_priv); - bla_free(bat_priv); + batadv_bla_free(bat_priv); free_percpu(bat_priv->bat_counters); diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index e573c32a619d..5b5feb496d8d 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -676,7 +676,7 @@ int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if) * roaming advertisement from it, as it has the same * entries as we have. */ - if (bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src)) + if (batadv_bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src)) goto out; orig_node = orig_hash_find(bat_priv, roam_adv_packet->src); @@ -1089,7 +1089,7 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if) spin_unlock_bh(&orig_node->bcast_seqno_lock); /* check whether this has been sent by another originator before */ - if (bla_check_bcast_duplist(bat_priv, bcast_packet, hdr_size)) + if (batadv_bla_check_bcast_duplist(bat_priv, bcast_packet, hdr_size)) goto out; /* rebroadcast packet */ @@ -1098,7 +1098,7 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if) /* don't hand the broadcast up if it is from an originator * from the same backbone. */ - if (bla_is_backbone_gw(skb, orig_node, hdr_size)) + if (batadv_bla_is_backbone_gw(skb, orig_node, hdr_size)) goto out; /* broadcast for me */ diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 11bfe533e2a4..16e866ad1759 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -162,7 +162,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) goto dropped; } - if (bla_tx(bat_priv, skb, vid)) + if (batadv_bla_tx(bat_priv, skb, vid)) goto dropped; /* Register the client MAC in the transtable */ @@ -309,7 +309,7 @@ void interface_rx(struct net_device *soft_iface, /* Let the bridge loop avoidance check the packet. If will * not handle it, we can safely push it up. */ - if (bla_rx(bat_priv, skb, vid)) + if (batadv_bla_rx(bat_priv, skb, vid)) goto out; netif_rx(skb); diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index a1a51cc9d88e..bb8557ea30f1 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1674,7 +1674,7 @@ bool send_tt_response(struct bat_priv *bat_priv, { if (is_my_mac(tt_request->dst)) { /* don't answer backbone gws! */ - if (bla_is_backbone_gw_orig(bat_priv, tt_request->src)) + if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_request->src)) return true; return send_my_tt_response(bat_priv, tt_request); @@ -1786,7 +1786,7 @@ void handle_tt_response(struct bat_priv *bat_priv, (tt_response->flags & TT_FULL_TABLE ? 'F' : '.')); /* we should have never asked a backbone gw */ - if (bla_is_backbone_gw_orig(bat_priv, tt_response->src)) + if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_response->src)) goto out; orig_node = orig_hash_find(bat_priv, tt_response->src); @@ -2163,7 +2163,7 @@ void tt_update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node, bool full_table = true; /* don't care about a backbone gateways updates. */ - if (bla_is_backbone_gw_orig(bat_priv, orig_node->orig)) + if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig)) return; /* orig table not initialised AND first diff is in the OGM OR the ttvn