[9610] wlbt: Add kernel param. to dynamically enable/disable smapper

We would like to have the option to dynamically enable/disable
smapper on a running kernels to be able to profile the functionality.

SMAPPER is initialized on WLAN init, therefore the enable/disable will
only take effect when WLAN is turning on

Change-Id: I11116087f22eb961e047e81beda19b7a328fe202
SCSC-Bug-Id: SSB-42641
Signed-off-by: Albert Cano <a.canocamps@samsung.com>

diff --git a/drivers/net/wireless/scsc/hip4.c b/drivers/net/wireless/scsc/hip4.c
index 2d166100556e1f9e4287f65617102537bfcd0874..8ff2a46ba03499bb85268dbdcdd0f7d7907dd304 100755 (executable)
--- a/drivers/net/wireless/scsc/hip4.c
+++ b/drivers/net/wireless/scsc/hip4.c
@@ -38,6 +38,13 @@ static int hip4_qos_med_tput_in_mbps = 150;
 module_param(hip4_qos_med_tput_in_mbps, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(hip4_qos_med_tput_in_mbps, "throughput (in Mbps) to apply Median PM QoS");
 
+#ifdef CONFIG_SCSC_SMAPPER
+static bool hip4_smapper_enable = true;
+module_param(hip4_smapper_enable, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(hip4_smapper_enable, "enable HIP4 SMAPPER. (default: Y)");
+static bool hip4_smapper_is_enabled;
+#endif
+
 static ktime_t intr_received;
 static ktime_t bh_init;
 static ktime_t bh_end;
@@ -1632,7 +1639,10 @@ int hip4_init(struct slsi_hip4 *hip)
 
 #ifdef CONFIG_SCSC_SMAPPER
        /* Init SMAPPER */
-       hip4_smapper_init(sdev, hip);
+       if (hip4_smapper_enable) {
+               hip4_smapper_init(sdev, hip);
+               hip4_smapper_is_enabled = true;
+       }
 #endif
 
        /* setup for PM QoS */
@@ -1931,7 +1941,10 @@ void hip4_deinit(struct slsi_hip4 *hip)
 
 #ifdef CONFIG_SCSC_SMAPPER
        /* Init SMAPPER */
-       hip4_smapper_deinit(sdev, hip);
+       if (hip4_smapper_is_enabled) {
+               hip4_smapper_is_enabled = false;
+               hip4_smapper_deinit(sdev, hip);
+       }
 #endif
        wake_lock_destroy(&hip->hip_priv->hip4_wake_lock);