[src/trunk]: src/sys/external/bsd/drm2/include/linux match_string

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/69f5c652f98a
branches:  trunk
changeset: 1028357:69f5c652f98a
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 10:48:00 2021 +0000

description:
match_string

diffstat:

 sys/external/bsd/drm2/include/linux/string.h |  18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diffs (30 lines):

diff -r d1d5372321ac -r 69f5c652f98a sys/external/bsd/drm2/include/linux/string.h
--- a/sys/external/bsd/drm2/include/linux/string.h      Sun Dec 19 10:47:54 2021 +0000
+++ b/sys/external/bsd/drm2/include/linux/string.h      Sun Dec 19 10:48:00 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: string.h,v 1.8 2021/12/19 09:51:20 riastradh Exp $     */
+/*     $NetBSD: string.h,v 1.9 2021/12/19 10:48:00 riastradh Exp $     */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -133,4 +133,20 @@
 
 #define str_has_prefix(str, prefix) strncmp(str, prefix, strlen(prefix))
 
+static inline int
+match_string(const char *const *haystack, size_t n, const char *needle)
+{
+       int i;
+
+       for (i = 0; i < n; i++) {
+               if (haystack[i] == NULL)
+                       break;
+               if (strcmp(haystack[i], needle) == 0)
+                       return i;
+               if (i == INT_MAX)
+                       break;
+       }
+       return -EINVAL;
+}
+
 #endif  /* _LINUX_STRING_H_ */