wl12xx: don't modify the global supported band structures

Commit Message

Luciano Coelho Jan. 11, 2011, 5:25 p.m. UTC

None

Patch

diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 8a35491..862ec9c 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -3148,8 +3148,20 @@  int wl1271_init_ieee80211(struct wl1271 *wl)
 	 */
 	wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
 			sizeof(struct ieee80211_header);
-	wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
-	wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
+
+	/*
+	 * We keep local copies of the band structs because we need to
+	 * modify them on a per-device basis.
+	 */
+	memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
+	       sizeof(wl1271_band_2ghz));
+	memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
+	       sizeof(wl1271_band_5ghz));
+
+	wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+		&wl->bands[IEEE80211_BAND_2GHZ];
+	wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+		&wl->bands[IEEE80211_BAND_5GHZ];
 
 	wl->hw->queues = 4;
 	wl->hw->max_rates = 1;
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 80e0e39..cf5c1a5 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -457,6 +457,9 @@  struct wl1271 {
 
 	/* recoreded keys for AP-mode - set here before AP startup */
 	struct wl1271_ap_key *recorded_ap_keys[MAX_NUM_KEYS];
+
+	/* bands supported by this instance of wl12xx */
+	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 };
 
 struct wl1271_station {