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wifi: nl80211: add MLO_LINK_ID to CMD_STOP_AP event

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nl80211_send_ap_stopped() can be called multiple times on the same
netdev for each link when using Multi-Link Operation. Add the
MLO_LINK_ID attribute to the event to allow userspace to distinguish
which link the event is for.

Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Link: https://lore.kernel.org/r/20230128125844.2407135-2-alvin@pqrs.dk
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Alvin Šipraga 2023-01-28 13:58:44 +01:00 committed by Johannes Berg
parent 77669c151f
commit cba7217a92
3 changed files with 6 additions and 4 deletions
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2
net/wireless/ap.c
View File

@ -39,7 +39,7 @@ static int ___cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
wdev->u.ap.ssid_len = 0;
rdev_set_qos_map(rdev, dev, NULL);
if (notify)
nl80211_send_ap_stopped(wdev);
nl80211_send_ap_stopped(wdev, link_id);
/* Should we apply the grace period during beaconing interface
* shutdown also?

6
net/wireless/nl80211.c
View File

@ -19717,7 +19717,7 @@ void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
}
EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
void nl80211_send_ap_stopped(struct wireless_dev *wdev)
void nl80211_send_ap_stopped(struct wireless_dev *wdev, unsigned int link_id)
{
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
@ -19735,7 +19735,9 @@ void nl80211_send_ap_stopped(struct wireless_dev *wdev)
if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
NL80211_ATTR_PAD))
NL80211_ATTR_PAD) ||
(wdev->valid_links &&
nla_put_u8(msg, NL80211_ATTR_MLO_LINK_ID, link_id)))
goto out;
genlmsg_end(msg, hdr);

2
net/wireless/nl80211.h
View File

@ -114,7 +114,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
enum nl80211_radar_event event,
struct net_device *netdev, gfp_t gfp);
void nl80211_send_ap_stopped(struct wireless_dev *wdev);
void nl80211_send_ap_stopped(struct wireless_dev *wdev, unsigned int link_id);
void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev);