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-rw-r--r--include/linux/types.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/types.h b/include/linux/types.h
index dfef336c19..aee9dfa87e 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
#ifndef _LINUX_TYPES_H
#define _LINUX_TYPES_H
#ifndef __ASSEMBLY__
@@ -214,5 +216,7 @@ struct hlist_node {
struct hlist_node *next, **pprev;
};
+typedef int (*cmp_func_t)(const void *a, const void *b);
+
#endif
#endif /* _LINUX_TYPES_H */