2 files changed, 10 insertions, 10 deletions
diff --git a/libnetdata/simple_pattern/simple_pattern.c b/libnetdata/simple_pattern/simple_pattern.c
index 70b06a22b..81c2ed0b8 100644
--- a/libnetdata/simple_pattern/simple_pattern.c
+++ b/libnetdata/simple_pattern/simple_pattern.c
@@ -333,9 +333,7 @@ extern int simple_pattern_is_potential_name(SIMPLE_PATTERN *p)
 }
 
 char *simple_pattern_trim_around_equal(char *src) {
-    char *store = mallocz(strlen(src) +1);
-    if(!store)
-        return NULL;
+    char *store = mallocz(strlen(src) + 1);
 
     char *dst = store;
     while (*src) {
diff --git a/libnetdata/simple_pattern/simple_pattern.h b/libnetdata/simple_pattern/simple_pattern.h
index 36fbbde7d..7282053e8 100644
--- a/libnetdata/simple_pattern/simple_pattern.h
+++ b/libnetdata/simple_pattern/simple_pattern.h
@@ -18,23 +18,25 @@ typedef void SIMPLE_PATTERN;
 // create a simple_pattern from the string given
 // default_mode is used in cases where EXACT matches, without an asterisk,
 // should be considered PREFIX matches.
-extern SIMPLE_PATTERN *simple_pattern_create(const char *list, const char *separators, SIMPLE_PREFIX_MODE default_mode);
+SIMPLE_PATTERN *simple_pattern_create(const char *list, const char *separators, SIMPLE_PREFIX_MODE default_mode);
 
 // test if string str is matched from the pattern and fill 'wildcarded' with the parts matched by '*'
-extern int simple_pattern_matches_extract(SIMPLE_PATTERN *list, const char *str, char *wildcarded, size_t wildcarded_size);
+int simple_pattern_matches_extract(SIMPLE_PATTERN *list, const char *str, char *wildcarded, size_t wildcarded_size);
 
 // test if string str is matched from the pattern
 #define simple_pattern_matches(list, str) simple_pattern_matches_extract(list, str, NULL, 0)
 
 // free a simple_pattern that was created with simple_pattern_create()
 // list can be NULL, in which case, this does nothing.
-extern void simple_pattern_free(SIMPLE_PATTERN *list);
+void simple_pattern_free(SIMPLE_PATTERN *list);
 
-extern void simple_pattern_dump(uint64_t debug_type, SIMPLE_PATTERN *p) ;
-extern int simple_pattern_is_potential_name(SIMPLE_PATTERN *p) ;
-extern char *simple_pattern_iterate(SIMPLE_PATTERN **p);
+void simple_pattern_dump(uint64_t debug_type, SIMPLE_PATTERN *p) ;
+int simple_pattern_is_potential_name(SIMPLE_PATTERN *p) ;
+char *simple_pattern_iterate(SIMPLE_PATTERN **p);
 
-//Auxiliary function to create a pattern
+// Auxiliary function to create a pattern
 char *simple_pattern_trim_around_equal(char *src);
 
+#define is_valid_sp(x) ((x) && *(x) && !((x)[0] == '*' && (x)[1] == '\0'))
+
 #endif //NETDATA_SIMPLE_PATTERN_H