1 files changed, 18 insertions, 0 deletions
diff --git a/mdadm.h b/mdadm.h
index 8dcd8b8..709b610 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -767,6 +767,8 @@ enum sysfs_read_flags {
 	GET_DEVS_ALL	= (1 << 27),
 };
 
+#define SYSFS_MAX_BUF_SIZE 64
+
 /* If fd >= 0, get the array it is open on,
  * else use devnm.
  */
@@ -2025,3 +2027,19 @@ static inline int is_container(const int level)
 		return 1;
 	return 0;
 }
+
+#define STR_COMMON_NONE "none"
+
+/**
+ * str_is_none() - check if @str starts with "none".
+ * @str: string
+ *
+ * return:
+ * true if string starts with "none", false otherwise.
+ */
+static inline bool str_is_none(char *str)
+{
+	if (strncmp(str, STR_COMMON_NONE, sizeof(STR_COMMON_NONE) - 1) == 0)
+		return true;
+	return false;
+}