[PATCH v2 2/2] mac80211-hwsim: Provide multicast event for HWSIM_CMD_DEL_RADIO

[Jukka Rissanen]

When deleting old radio via HWSIM_CMD_DEL_RADIO then listeners on the
multicast group "config" are informed.

Signed-off-by: Jukka Rissanen <jukka.rissa...@linux.intel.com>
---
 drivers/net/wireless/mac80211_hwsim.c | 43 ++++++++++++++++++++++++++++++-----
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c 
b/drivers/net/wireless/mac80211_hwsim.c
index ff187fe..909777c 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2305,8 +2305,39 @@ failed:
        return err;
 }
 
-static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
+static void hwsim_mcast_del_radio(int id, struct genl_info *info)
 {
+       struct sk_buff *mcast_skb;
+       void *data;
+       int ret;
+
+       mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
+       if (!mcast_skb)
+               return;
+
+       data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
+                          HWSIM_CMD_DEL_RADIO);
+       if (!data)
+               goto error;
+
+       ret = nla_put_u32(mcast_skb, HWSIM_ATTR_RADIO_ID, id);
+       if (ret < 0)
+               goto error;
+
+       genlmsg_end(mcast_skb, data);
+
+       hwsim_mcast_config_msg(mcast_skb, info);
+
+       return;
+
+error:
+       nlmsg_free(mcast_skb);
+}
+
+static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
+                                    struct genl_info *info)
+{
+       hwsim_mcast_del_radio(data->idx, info);
        debugfs_remove_recursive(data->debugfs);
        ieee80211_unregister_hw(data->hw);
        device_release_driver(data->dev);
@@ -2324,7 +2355,7 @@ static void mac80211_hwsim_free(void)
                                                list))) {
                list_del(&data->list);
                spin_unlock_bh(&hwsim_radio_lock);
-               mac80211_hwsim_destroy_radio(data);
+               mac80211_hwsim_del_radio(data, NULL);
                spin_lock_bh(&hwsim_radio_lock);
        }
        spin_unlock_bh(&hwsim_radio_lock);
@@ -2573,7 +2604,7 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct 
genl_info *info)
        return mac80211_hwsim_new_radio(info, &param);
 }
 
-static int hwsim_destroy_radio_nl(struct sk_buff *msg, struct genl_info *info)
+static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
 {
        struct mac80211_hwsim_data *data;
        int idx;
@@ -2588,7 +2619,7 @@ static int hwsim_destroy_radio_nl(struct sk_buff *msg, 
struct genl_info *info)
                        continue;
                list_del(&data->list);
                spin_unlock_bh(&hwsim_radio_lock);
-               mac80211_hwsim_destroy_radio(data);
+               mac80211_hwsim_del_radio(data, info);
                return 0;
        }
        spin_unlock_bh(&hwsim_radio_lock);
@@ -2621,9 +2652,9 @@ static const struct genl_ops hwsim_ops[] = {
                .flags = GENL_ADMIN_PERM,
        },
        {
-               .cmd = HWSIM_CMD_DESTROY_RADIO,
+               .cmd = HWSIM_CMD_DEL_RADIO,
                .policy = hwsim_genl_policy,
-               .doit = hwsim_destroy_radio_nl,
+               .doit = hwsim_del_radio_nl,
                .flags = GENL_ADMIN_PERM,
        },
 };
-- 
1.8.3.1

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