[PATCH 2/4] dtc.h: add strends for suffix matching

[Ilya Lipnitskiy <ilya.lipnitskiy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Logic is similar to strcmp_suffix in <kernel>/drivers/of/property.c with
the exception that strends allows string length to equal suffix length.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 dtc.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dtc.h b/dtc.h
index d3e82fb8e3db..62963617c79a 100644
--- a/dtc.h
+++ b/dtc.h
@@ -86,6 +86,16 @@ static inline uint64_t dtb_ld64(const void *p)
 #define streq(a, b)	(strcmp((a), (b)) == 0)
 #define strstarts(s, prefix)	(strncmp((s), (prefix), strlen(prefix)) == 0)
 #define strprefixeq(a, n, b)	(strlen(b) == (n) && (memcmp(a, b, n) == 0))
+static inline bool strends(const char *str, const char *suffix)
+{
+	unsigned int len, suffix_len;
+
+	len = strlen(str);
+	suffix_len = strlen(suffix);
+	if (len < suffix_len)
+		return false;
+	return streq(str + len - suffix_len, suffix);
+}
 
 #define ALIGN(x, a)	(((x) + (a) - 1) & ~((a) - 1))
 
-- 
2.31.1