logging: Set frontend filters only when filtering enabled

Set initial filtering settings in the log core init only if
runtime filtering is enabled. It saves few bytes when runtime
filtering is off.

Signed-off-by: Krzysztof Chruściński <[email protected]>

Author: nordic-krch

subsys/logging/log_core.c

@@ -257,8 +257,10 @@ void log_core_init(void)
 	if (IS_ENABLED(CONFIG_LOG_FRONTEND)) {
 		log_frontend_init();
 
-		for (uint16_t s = 0; s < log_src_cnt_get(0); s++) {
-			log_frontend_filter_set(s, CONFIG_LOG_MAX_LEVEL);
+		if (IS_ENABLED(CONFIG_LOG_RUNTIME_FILTERING)) {
+			for (uint16_t s = 0; s < log_src_cnt_get(0); s++) {
+				log_frontend_filter_set(s, CONFIG_LOG_MAX_LEVEL);
+			}
 		}
 
 		if (IS_ENABLED(CONFIG_LOG_FRONTEND_ONLY)) {