Module Name: src
Committed By: riastradh
Date: Mon Aug 27 06:55:43 UTC 2018
Modified Files:
src/sys/external/bsd/common/include/linux: list.h
Log Message:
Define list_entry_first_or_null.
To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/external/bsd/common/include/linux/list.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/common/include/linux/list.h
diff -u src/sys/external/bsd/common/include/linux/list.h:1.9 src/sys/external/bsd/common/include/linux/list.h:1.10
--- src/sys/external/bsd/common/include/linux/list.h:1.9 Mon Aug 27 06:54:19 2018
+++ src/sys/external/bsd/common/include/linux/list.h Mon Aug 27 06:55:43 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: list.h,v 1.9 2018/08/27 06:54:19 riastradh Exp $ */
+/* $NetBSD: list.h,v 1.10 2018/08/27 06:55:43 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -199,6 +199,8 @@ list_del_init(struct list_head *node)
#define list_entry(PTR, TYPE, FIELD) container_of(PTR, TYPE, FIELD)
#define list_first_entry(PTR, TYPE, FIELD) \
list_entry(list_first((PTR)), TYPE, FIELD)
+#define list_first_entry_or_null(PTR, TYPE, FIELD) \
+ (list_empty((PTR)) ? NULL : list_entry(list_first((PTR)), TYPE, FIELD))
#define list_last_entry(PTR, TYPE, FIELD) \
list_entry(list_last((PTR)), TYPE, FIELD)
#define list_next_entry(ENTRY, FIELD) \
