nl80211: Add more debug prints for 11b rate disabling and re-enabling

This makes it easier to debug issues related to TX rate masking for P2P
use cases (and unmasking for non-P2P).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 087b0ef691fe7e0225277ccd01d300c6507a7534..a2cfaef0ea12966a9fd6288f5a19148809955fa6 100644 (file)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2157,6 +2157,9 @@ static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
 {
        struct wpa_driver_nl80211_data *drv = bss->drv;
 
+       wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d",
+                  bss->ifname, drv->disabled_11b_rates);
+
        bss->in_deinit = 1;
        if (drv->data_tx_status)
                eloop_unregister_read_sock(drv->eapol_tx_sock);
@@ -3882,8 +3885,12 @@ int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
                                                wds, handler, arg);
        }
 
-       if (ret >= 0 && is_p2p_net_interface(iftype))
+       if (ret >= 0 && is_p2p_net_interface(iftype)) {
+               wpa_printf(MSG_DEBUG,
+                          "nl80211: Interface %s created for P2P - disable 11b rates",
+                          ifname);
                nl80211_disable_11b_rates(drv, ret, 1);
+       }
 
        return ret;
 }
@@ -4734,10 +4741,17 @@ done:
                return ret;
        }
 
-       if (is_p2p_net_interface(nlmode))
+       if (is_p2p_net_interface(nlmode)) {
+               wpa_printf(MSG_DEBUG,
+                          "nl80211: Interface %s mode change to P2P - disable 11b rates",
+                          bss->ifname);
                nl80211_disable_11b_rates(drv, drv->ifindex, 1);
-       else if (drv->disabled_11b_rates)
+       } else if (drv->disabled_11b_rates) {
+               wpa_printf(MSG_DEBUG,
+                          "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates",
+                          bss->ifname);
                nl80211_disable_11b_rates(drv, drv->ifindex, 0);
+       }
 
        if (is_ap_interface(nlmode)) {
                nl80211_mgmt_unsubscribe(bss, "start AP");
@@ -6112,6 +6126,11 @@ static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
        struct nlattr *bands, *band;
        int ret;
 
+       wpa_printf(MSG_DEBUG,
+                  "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)",
+                  ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" :
+                  "no NL80211_TXRATE_LEGACY constraint");
+
        msg = nl80211_ifindex_msg(drv, ifindex, 0,
                                  NL80211_CMD_SET_TX_BITRATE_MASK);
        if (!msg)