diff --git a/src/nm-logging.c b/src/nm-logging.c
index 6f912f586..85b93af49 100644
--- a/src/nm-logging.c
+++ b/src/nm-logging.c
@@ -42,8 +42,6 @@
 #include "nm-utils/nm-time-utils.h"
 #include "nm-errors.h"
 
-void (*_nm_logging_clear_platform_logging_cache) (void);
-
 static void
 nm_log_handler (const char *log_domain,
                 GLogLevelFlags level,
@@ -403,7 +401,6 @@ nm_logging_setup (const char  *level,
 		_nm_logging_enabled_state[i] = new_logging[i];
 
 	if (   had_platform_debug
-	    && _nm_logging_clear_platform_logging_cache
 	    && !nm_logging_enabled (LOGL_DEBUG, LOGD_PLATFORM)) {
 		/* when debug logging is enabled, platform will cache all access to
 		 * sysctl. When the user disables debug-logging, we want to clear that
diff --git a/src/nm-logging.h b/src/nm-logging.h
index 21263c7b6..85fabd199 100644
--- a/src/nm-logging.h
+++ b/src/nm-logging.h
@@ -271,8 +271,6 @@ gboolean nm_logging_syslog_enabled (void);
 #define _LOG3t_err(errsv, ...) G_STMT_START { if (FALSE) { _NMLOG3_err (errsv, LOGL_TRACE, __VA_ARGS__); } } G_STMT_END
 #endif
 
-extern void (*_nm_logging_clear_platform_logging_cache) (void);
-
 /*****************************************************************************/
 
 #define __NMLOG_DEFAULT(level, domain, prefix, ...) \
@@ -292,4 +290,8 @@ extern void (*_nm_logging_clear_platform_logging_cache) (void);
 		        _NM_UTILS_MACRO_REST(__VA_ARGS__)); \
 	} G_STMT_END
 
+/*****************************************************************************/
+
+extern void _nm_logging_clear_platform_logging_cache (void);
+
 #endif /* __NETWORKMANAGER_LOGGING_H__ */
diff --git a/src/platform/nm-linux-platform.c b/src/platform/nm-linux-platform.c
index bf5a05dfe..c7814df83 100644
--- a/src/platform/nm-linux-platform.c
+++ b/src/platform/nm-linux-platform.c
@@ -4146,8 +4146,8 @@ sysctl_set (NMPlatform *platform, const char *pathid, int dirfd, const char *pat
 
 static GSList *sysctl_clear_cache_list;
 
-static void
-_nm_logging_clear_platform_logging_cache_impl (void)
+void
+_nm_logging_clear_platform_logging_cache (void)
 {
 	while (sysctl_clear_cache_list) {
 		NMLinuxPlatformPrivate *priv = NM_LINUX_PLATFORM_GET_PRIVATE (sysctl_clear_cache_list->data);
@@ -4167,7 +4167,6 @@ _log_dbg_sysctl_get_impl (NMPlatform *platform, const char *pathid, const char *
 	const char *prev_value = NULL;
 
 	if (!priv->sysctl_get_prev_values) {
-		_nm_logging_clear_platform_logging_cache = _nm_logging_clear_platform_logging_cache_impl;
 		sysctl_clear_cache_list = g_slist_prepend (sysctl_clear_cache_list, platform);
 		priv->sysctl_get_prev_values = g_hash_table_new_full (nm_str_hash, g_str_equal, g_free, g_free);
 	} else