diff options
author | Johannes Berg <johannes.berg@intel.com> | 2013-11-19 14:19:36 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2013-11-19 21:39:06 (GMT) |
commit | c2ebb908469d507ff400dad94efc755e6c799672 (patch) | |
tree | d5a8ef3abc30ed3fa6303bb72a3bf1ce5a84a61b /net | |
parent | 06fb555a273dc8ef0d876f4e864ad11cfcea63e0 (diff) | |
download | linux-c2ebb908469d507ff400dad94efc755e6c799672.tar.xz |
genetlink: remove family pointer from genl_multicast_group
There's no reason to have the family pointer there since it
can just be passed internally where needed, so remove it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/netlink/genetlink.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 6efb0e9..e9ef640 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -77,7 +77,8 @@ static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_VFS_DQUOT); static unsigned long *mc_groups = &mc_group_start; static unsigned long mc_groups_longs = 1; -static int genl_ctrl_event(int event, void *data); +static int genl_ctrl_event(int event, struct genl_family *family, + struct genl_multicast_group *grp); static inline unsigned int genl_family_hash(unsigned int id) { @@ -235,9 +236,8 @@ int genl_register_mc_group(struct genl_family *family, grp->id = id; set_bit(id, mc_groups); list_add_tail(&grp->list, &family->mcast_groups); - grp->family = family; - genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, grp); + genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, family, grp); out: genl_unlock_all(); return err; @@ -248,7 +248,6 @@ static void __genl_unregister_mc_group(struct genl_family *family, struct genl_multicast_group *grp) { struct net *net; - BUG_ON(grp->family != family); netlink_table_grab(); rcu_read_lock(); @@ -260,9 +259,8 @@ static void __genl_unregister_mc_group(struct genl_family *family, if (grp->id != 1) clear_bit(grp->id, mc_groups); list_del(&grp->list); - genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp); + genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, family, grp); grp->id = 0; - grp->family = NULL; } static void genl_unregister_mc_groups(struct genl_family *family) @@ -364,7 +362,7 @@ int __genl_register_family(struct genl_family *family) list_add_tail(&family->family_list, genl_family_chain(family->id)); genl_unlock_all(); - genl_ctrl_event(CTRL_CMD_NEWFAMILY, family); + genl_ctrl_event(CTRL_CMD_NEWFAMILY, family, NULL); return 0; @@ -400,7 +398,7 @@ int genl_unregister_family(struct genl_family *family) genl_unlock_all(); kfree(family->attrbuf); - genl_ctrl_event(CTRL_CMD_DELFAMILY, family); + genl_ctrl_event(CTRL_CMD_DELFAMILY, family, NULL); return 0; } @@ -693,7 +691,8 @@ nla_put_failure: return -EMSGSIZE; } -static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 portid, +static int ctrl_fill_mcgrp_info(struct genl_family *family, + struct genl_multicast_group *grp, u32 portid, u32 seq, u32 flags, struct sk_buff *skb, u8 cmd) { @@ -705,8 +704,8 @@ static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 portid, if (hdr == NULL) return -1; - if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, grp->family->name) || - nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, grp->family->id)) + if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, family->name) || + nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, family->id)) goto nla_put_failure; nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS); @@ -783,7 +782,8 @@ static struct sk_buff *ctrl_build_family_msg(struct genl_family *family, return skb; } -static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp, +static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_family *family, + struct genl_multicast_group *grp, u32 portid, int seq, u8 cmd) { struct sk_buff *skb; @@ -793,7 +793,7 @@ static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp, if (skb == NULL) return ERR_PTR(-ENOBUFS); - err = ctrl_fill_mcgrp_info(grp, portid, seq, 0, skb, cmd); + err = ctrl_fill_mcgrp_info(family, grp, portid, seq, 0, skb, cmd); if (err < 0) { nlmsg_free(skb); return ERR_PTR(err); @@ -855,11 +855,10 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info) return genlmsg_reply(msg, info); } -static int genl_ctrl_event(int event, void *data) +static int genl_ctrl_event(int event, struct genl_family *family, + struct genl_multicast_group *grp) { struct sk_buff *msg; - struct genl_family *family; - struct genl_multicast_group *grp; /* genl is still initialising */ if (!init_net.genl_sock) @@ -868,14 +867,13 @@ static int genl_ctrl_event(int event, void *data) switch (event) { case CTRL_CMD_NEWFAMILY: case CTRL_CMD_DELFAMILY: - family = data; + WARN_ON(grp); msg = ctrl_build_family_msg(family, 0, 0, event); break; case CTRL_CMD_NEWMCAST_GRP: case CTRL_CMD_DELMCAST_GRP: - grp = data; - family = grp->family; - msg = ctrl_build_mcgrp_msg(data, 0, 0, event); + BUG_ON(!grp); + msg = ctrl_build_mcgrp_msg(family, grp, 0, 0, event); break; default: return -EINVAL; |