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-rw-r--r--v4l/compat.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/v4l/compat.h b/v4l/compat.h
index 5e46c8271..551696082 100644
--- a/v4l/compat.h
+++ b/v4l/compat.h
@@ -228,4 +228,11 @@ static inline struct proc_dir_entry *proc_create_data(const char *a,
typedef unsigned long uintptr_t;
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)
+static inline int list_is_singular(const struct list_head *head)
+{
+ return !list_empty(head) && (head->next == head->prev);
+}
+#endif
+
#endif