1 files changed, 70 insertions, 9 deletions

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index d92800bb2d2f..e763f1529ddb 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -39,6 +39,13 @@ static const struct file_operations sta_ ##name## _ops = {		\
 	.open = mac80211_open_file_generic,				\
 }
 
+#define STA_OPS_RW(name)						\
+static const struct file_operations sta_ ##name## _ops = {		\
+	.read = sta_##name##_read,					\
+	.write = sta_##name##_write,					\
+	.open = mac80211_open_file_generic,				\
+}
+
 #define STA_FILE(name, field, format)					\
 		STA_READ_##format(name, field)				\
 		STA_OPS(name)
@@ -57,7 +64,6 @@ STA_FILE(tx_filtered, tx_filtered_count, LU);
 STA_FILE(tx_retry_failed, tx_retry_failed, LU);
 STA_FILE(tx_retry_count, tx_retry_count, LU);
 STA_FILE(last_signal, last_signal, D);
-STA_FILE(last_noise, last_noise, D);
 STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
 
 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
@@ -120,7 +126,7 @@ STA_OPS(last_seq_ctrl);
 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 					size_t count, loff_t *ppos)
 {
-	char buf[64 + STA_TID_NUM * 40], *p = buf;
+	char buf[71 + STA_TID_NUM * 40], *p = buf;
 	int i;
 	struct sta_info *sta = file->private_data;
 
@@ -128,16 +134,16 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 	p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
 			sta->ampdu_mlme.dialog_token_allocator + 1);
 	p += scnprintf(p, sizeof(buf) + buf - p,
-		       "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tSSN\tpending\n");
+		       "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tSSN\tpending\n");
 	for (i = 0; i < STA_TID_NUM; i++) {
 		p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
-				sta->ampdu_mlme.tid_state_rx[i]);
+				sta->ampdu_mlme.tid_active_rx[i]);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
-				sta->ampdu_mlme.tid_state_rx[i] ?
+				sta->ampdu_mlme.tid_active_rx[i] ?
 				sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
-				sta->ampdu_mlme.tid_state_rx[i] ?
+				sta->ampdu_mlme.tid_active_rx[i] ?
 				sta->ampdu_mlme.tid_rx[i]->ssn : 0);
 
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
@@ -157,7 +163,63 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 
 	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 }
-STA_OPS(agg_status);
+
+static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	char _buf[12], *buf = _buf;
+	struct sta_info *sta = file->private_data;
+	bool start, tx;
+	unsigned long tid;
+	int ret;
+
+	if (count > sizeof(_buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, userbuf, count))
+		return -EFAULT;
+
+	buf[sizeof(_buf) - 1] = '\0';
+
+	if (strncmp(buf, "tx ", 3) == 0) {
+		buf += 3;
+		tx = true;
+	} else if (strncmp(buf, "rx ", 3) == 0) {
+		buf += 3;
+		tx = false;
+	} else
+		return -EINVAL;
+
+	if (strncmp(buf, "start ", 6) == 0) {
+		buf += 6;
+		start = true;
+		if (!tx)
+			return -EINVAL;
+	} else if (strncmp(buf, "stop ", 5) == 0) {
+		buf += 5;
+		start = false;
+	} else
+		return -EINVAL;
+
+	tid = simple_strtoul(buf, NULL, 0);
+
+	if (tid >= STA_TID_NUM)
+		return -EINVAL;
+
+	if (tx) {
+		if (start)
+			ret = ieee80211_start_tx_ba_session(&sta->sta, tid);
+		else
+			ret = ieee80211_stop_tx_ba_session(&sta->sta, tid,
+							   WLAN_BACK_RECIPIENT);
+	} else {
+		__ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 3);
+		ret = 0;
+	}
+
+	return ret ?: count;
+}
+STA_OPS_RW(agg_status);
 
 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 				size_t count, loff_t *ppos)
@@ -177,7 +239,7 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 	if (htc->ht_supported) {
 		p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
 
-		PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDCP");
+		PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
 		PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
 		PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
 
@@ -289,7 +351,6 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DEBUGFS_ADD(tx_retry_failed);
 	DEBUGFS_ADD(tx_retry_count);
 	DEBUGFS_ADD(last_signal);
-	DEBUGFS_ADD(last_noise);
 	DEBUGFS_ADD(wep_weak_iv_count);
 	DEBUGFS_ADD(ht_capa);
 }