From 22e951ae46323dc48abca27e270168ba572b9506 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 8 Aug 2011 11:28:24 +0000
Subject: [PATCH] b43: fix reloading config settings after channel changes or
 hostapd restart (#8033)

SVN-Revision: 27930
---
 .../patches/860-b43_restart_config.patch      | 101 ++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 package/mac80211/patches/860-b43_restart_config.patch

diff --git a/package/mac80211/patches/860-b43_restart_config.patch b/package/mac80211/patches/860-b43_restart_config.patch
new file mode 100644
index 00000000000..75d735063a7
--- /dev/null
+++ b/package/mac80211/patches/860-b43_restart_config.patch
@@ -0,0 +1,101 @@
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -326,6 +326,10 @@ static void b43_wireless_core_exit(struc
+ static int b43_wireless_core_init(struct b43_wldev *dev);
+ static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
+ static int b43_wireless_core_start(struct b43_wldev *dev);
++static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
++				    struct ieee80211_vif *vif,
++				    struct ieee80211_bss_conf *conf,
++				    u32 changed);
+ 
+ static int b43_ratelimit(struct b43_wl *wl)
+ {
+@@ -3762,14 +3766,24 @@ static int b43_op_config(struct ieee8021
+ 	struct ieee80211_conf *conf = &hw->conf;
+ 	int antenna;
+ 	int err = 0;
++	bool reload_bss = false;
+ 
+ 	mutex_lock(&wl->mutex);
+ 
++	dev = wl->current_dev;
++
+ 	/* Switch the band (if necessary). This might change the active core. */
+ 	err = b43_switch_band(wl, conf->channel);
+ 	if (err)
+ 		goto out_unlock_mutex;
+-	dev = wl->current_dev;
++
++	/* Need to reload all settings if the core changed */
++	if (dev != wl->current_dev) {
++		dev = wl->current_dev;
++		changed = ~0;
++		reload_bss = true;
++	}
++
+ 	phy = &dev->phy;
+ 
+ 	if (conf_is_ht(conf))
+@@ -3830,6 +3844,9 @@ out_mac_enable:
+ out_unlock_mutex:
+ 	mutex_unlock(&wl->mutex);
+ 
++	if (wl->vif && reload_bss)
++		b43_op_bss_info_changed(hw, wl->vif, &wl->vif->bss_conf, ~0);
++
+ 	return err;
+ }
+ 
+@@ -3918,7 +3935,8 @@ static void b43_op_bss_info_changed(stru
+ 	if (changed & BSS_CHANGED_BEACON_INT &&
+ 	    (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
+ 	     b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
+-	     b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
++	     b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) &&
++	    conf->beacon_int)
+ 		b43_set_beacon_int(dev, conf->beacon_int);
+ 
+ 	if (changed & BSS_CHANGED_BASIC_RATES)
+@@ -4699,6 +4717,9 @@ static int b43_op_add_interface(struct i
+  out_mutex_unlock:
+ 	mutex_unlock(&wl->mutex);
+ 
++	if (err == 0)
++		b43_op_bss_info_changed(hw, vif, &vif->bss_conf, ~0);
++
+ 	return err;
+ }
+ 
+@@ -4769,6 +4790,9 @@ static int b43_op_start(struct ieee80211
+  out_mutex_unlock:
+ 	mutex_unlock(&wl->mutex);
+ 
++	/* reload configuration */
++	b43_op_config(hw, ~0);
++
+ 	return err;
+ }
+ 
+@@ -4925,10 +4949,18 @@ out:
+ 	if (err)
+ 		wl->current_dev = NULL; /* Failed to init the dev. */
+ 	mutex_unlock(&wl->mutex);
+-	if (err)
++
++	if (err) {
+ 		b43err(wl, "Controller restart FAILED\n");
+-	else
+-		b43info(wl, "Controller restarted\n");
++		return;
++	}
++
++	/* reload configuration */
++	b43_op_config(wl->hw, ~0);
++	if (wl->vif)
++		b43_op_bss_info_changed(wl->hw, wl->vif, &wl->vif->bss_conf, ~0);
++
++	b43info(wl, "Controller restarted\n");
+ }
+ 
+ static int b43_setup_bands(struct b43_wldev *dev,
-- 
2.30.2