mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work

In mac80211_hwsim, the probe_req frame is created and sent while scanning. It is sent with ieee80211_tx_info which is not initialized. Uninitialized ieee80211_tx_info can cause problems when using mac80211_hwsim with wmediumd. wmediumd checks the tx_rates field of ieee80211_tx_info and doesn't relay probe_req frame to other clients even if it is a broadcasting message.

Call ieee80211_tx_prepare_skb() to initialize ieee80211_tx_info for the probe_req that is created by hw_scan_work in mac80211_hwsim.

Signed-off-by JaeMan Park <[email protected]>

---
 drivers/net/wireless/mac80211_hwsim.c | 7 +++++++
 1 file changed, 7 insertions(+)

drivers/net/wireless/mac80211_hwsim.c +7 -1

index 0307a6677907..95f1e4899231 100644
@@ -2336,6 +2336,13 @@ static void hw_scan_work(struct work_struct *work)
                        if (req->ie_len)
                                skb_put_data(probe, req->ie, req->ie_len);
 
+                       if (!ieee80211_tx_prepare_skb(hwsim->hw,
+                                                     hwsim->hw_scan_vif,
+                                                     probe,
+                                                     hwsim->tmp_chan->band,
+                                                     NULL))
+                               continue;
+
                        local_bh_disable();
                        mac80211_hwsim_tx_frame(hwsim->hw, probe,
                                                hwsim->tmp_chan);
--

2.34.1.703.g22d0c6ccf7-goog