cfg80211: allow per interface TX power setting

The TX power setting is currently per wiphy (hardware
device) but with multi-channel capabilities that doesn't
make much sense any more.

Allow drivers (and mac80211) to advertise support for
per-interface TX power configuration. When the TX power
is configured for the wiphy, the wdev will be NULL and
the driver can still handle that, but when a wdev is
given the TX power can be set only for that wdev now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 34fd3eba3090..a352e4d22dd9 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1992,6 +1992,7 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 }
 
 static int ieee80211_set_tx_power(struct wiphy *wiphy,
+                                  struct wireless_dev *wdev,
                                   enum nl80211_tx_power_setting type, int mbm)
 {
         struct ieee80211_local *local = wiphy_priv(wiphy);
@@ -2026,7 +2027,9 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
         return 0;
 }
 
-static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+static int ieee80211_get_tx_power(struct wiphy *wiphy,
+                                  struct wireless_dev *wdev,
+                                  int *dbm)
 {
         struct ieee80211_local *local = wiphy_priv(wiphy);