Make debug setting live modifiable for ath9k.
Change-Id: Ic1bb6df79f581a10900ab971f5606ba75cac3d86
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 8894e96..5b99fe2 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -21,6 +21,7 @@
#include <linux/ath9k_platform.h>
#include <linux/module.h>
#include <linux/relay.h>
+#include <linux/spinlock.h>
#include <net/ieee80211_radiotap.h>
#include "ath9k.h"
@@ -37,8 +38,23 @@
MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
MODULE_LICENSE("Dual BSD/GPL");
+static DEFINE_SPINLOCK(debug_lock);
static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
-module_param_named(debug, ath9k_debug, uint, 0);
+static int *ath_common_debug = NULL;
+static int ath9k_update_debug(const char *val, const struct kernel_param *kp) {
+ int ret = param_set_uint(val, kp);
+ if (ret < 0) return ret;
+
+ spin_lock(&debug_lock);
+ if (ath_common_debug) *ath_common_debug = ath9k_debug;
+ spin_unlock(&debug_lock);
+ return 0;
+}
+static const struct kernel_param_ops ath9k_debug_param_ops = {
+ .set = ath9k_update_debug,
+ .get = param_get_uint,
+};
+module_param_cb(debug, &ath9k_debug_param_ops, &ath9k_debug, 0644);
MODULE_PARM_DESC(debug, "Debugging mask");
int ath9k_modparam_nohwcrypt;
@@ -525,10 +541,14 @@
common->ah = ah;
common->hw = sc->hw;
common->priv = sc;
- common->debug_mask = ath9k_debug;
common->btcoex_enabled = ath9k_btcoex_enable == 1;
common->disable_ani = false;
+ spin_lock(&debug_lock);
+ ath_common_debug = &common->debug_mask;
+ spin_unlock(&debug_lock);
+ common->debug_mask = ath9k_debug;
+
/*
* Platform quirks.
*/
@@ -875,6 +895,9 @@
void ath9k_deinit_device(struct ath_softc *sc)
{
struct ieee80211_hw *hw = sc->hw;
+ spin_lock(&debug_lock);
+ ath_common_debug = NULL;
+ spin_unlock(&debug_lock);
ath9k_ps_wakeup(sc);
