qcacmn: Statically allocate wlan logging buffer

To aid in debugging memory leaks, and improve the robustness of log
recovery from crash dumps, statically allocate pglog_msg in the global
scope. This allows logs to be inspected even in cases where a crash
came late in the unload process. It also improves log recovery
robustness by removing the possibility of using a NULL pointer offset
under certain memory corruptions scenarios.

Change-Id: I077198e358570661c2f3adf2704f2c48f4b2f6f8
CRs-Fixed: 2078548

utils/logging/inc/wlan_logging_sock_svc.h

@@ -40,14 +40,14 @@
 
 int wlan_logging_sock_init_svc(void);
 int wlan_logging_sock_deinit_svc(void);
-int wlan_logging_sock_activate_svc(int log_to_console, int num_buf);
-int wlan_logging_sock_deactivate_svc(void);
 int wlan_log_to_user(QDF_TRACE_LEVEL log_level, char *to_be_sent, int length);
 
 #ifdef WLAN_LOGGING_SOCK_SVC_ENABLE
 void wlan_logging_set_per_pkt_stats(void);
 void wlan_logging_set_fw_flush_complete(void);
 void wlan_flush_host_logs_for_fatal(void);
+void wlan_logging_set_active(bool active);
+void wlan_logging_set_log_to_console(bool log_to_console);
 #else
 static inline void wlan_flush_host_logs_for_fatal(void)
 {
@@ -58,6 +58,8 @@ static inline void wlan_logging_set_per_pkt_stats(void)
 static inline void wlan_logging_set_fw_flush_complete(void)
 {
 }
+void wlan_logging_set_active(bool active) {}
+void wlan_logging_set_log_to_console(bool log_to_console) {}
 #endif /* WLAN_LOGGING_SOCK_SVC_ENABLE */
 
 #ifdef FEATURE_WLAN_DIAG_SUPPORT