ath9k: change DFS logging to use ath_dbg()

The DFS pattern detector was initially planned to reside on
a higher layer and used generic pr_*() logging functions.

Being part of ath9k, use ath_dbg() instead and make DFS log
ouput selectable via ATH_DBG_DFS (0x20000) at runtime.

This patch does not contain functional modifications.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 37 deletions

diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
index 91b8dceeadb1..b3e7cf2da222 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
@@ -23,28 +23,6 @@
 #include "dfs_debug.h"
 
 /**
- * struct pri_sequence - sequence of pulses matching one PRI
- * @head: list_head
- * @pri: pulse repetition interval (PRI) in usecs
- * @dur: duration of sequence in usecs
- * @count: number of pulses in this sequence
- * @count_falses: number of not matching pulses in this sequence
- * @first_ts: time stamp of first pulse in usecs
- * @last_ts: time stamp of last pulse in usecs
- * @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur)
- */
-struct pri_sequence {
-	struct list_head head;
-	u32 pri;
-	u32 dur;
-	u32 count;
-	u32 count_falses;
-	u64 first_ts;
-	u64 last_ts;
-	u64 deadline_ts;
-};
-
-/**
  * struct pulse_elem - elements in pulse queue
  * @ts: time stamp in usecs
  */
@@ -393,8 +371,8 @@ static void pri_detector_exit(struct pri_detector *de)
 	kfree(de);
 }
 
-static bool pri_detector_add_pulse(struct pri_detector *de,
-				   struct pulse_event *event)
+static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
+						   struct pulse_event *event)
 {
 	u32 max_updated_seq;
 	struct pri_sequence *ps;
@@ -403,35 +381,29 @@ static bool pri_detector_add_pulse(struct pri_detector *de,
 
 	/* ignore pulses not within width range */
 	if ((rs->width_min > event->width) || (rs->width_max < event->width))
-		return false;
+		return NULL;
 
 	if ((ts - de->last_ts) < rs->max_pri_tolerance)
 		/* if delta to last pulse is too short, don't use this pulse */
-		return false;
+		return NULL;
 	de->last_ts = ts;
 
 	max_updated_seq = pseq_handler_add_to_existing_seqs(de, ts);
 
 	if (!pseq_handler_create_sequences(de, ts, max_updated_seq)) {
-		pr_err("failed to create pulse sequences\n");
 		pri_detector_reset(de, ts);
 		return false;
 	}
 
 	ps = pseq_handler_check_detection(de);
 
-	if (ps != NULL) {
-		pr_info("DFS: radar found: pri=%d, count=%d, count_false=%d\n",
-			 ps->pri, ps->count, ps->count_falses);
-		pri_detector_reset(de, ts);
-		return true;
-	}
-	pulse_queue_enqueue(de, ts);
-	return false;
+	if (ps == NULL)
+		pulse_queue_enqueue(de, ts);
+
+	return ps;
 }
 
-struct pri_detector *
-pri_detector_init(const struct radar_detector_specs *rs)
+struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs)
 {
 	struct pri_detector *de;
 	de = kzalloc(sizeof(*de), GFP_KERNEL);