Merge git://git.samba.org/sfrench/cifs-2.6

[cascardo/linux.git] / tools / perf / util / string.c

diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index b9a985d..d583638 100644 (file)
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -294,3 +294,22 @@ bool strlazymatch(const char *str, const char *pat)
 {
        return __match_glob(str, pat, true);
 }
+
+/**
+ * strtailcmp - Compare the tail of two strings
+ * @s1: 1st string to be compared
+ * @s2: 2nd string to be compared
+ *
+ * Return 0 if whole of either string is same as another's tail part.
+ */
+int strtailcmp(const char *s1, const char *s2)
+{
+       int i1 = strlen(s1);
+       int i2 = strlen(s2);
+       while (--i1 >= 0 && --i2 >= 0) {
+               if (s1[i1] != s2[i2])
+                       return s1[i1] - s2[i2];
+       }
+       return 0;
+}
+