Merge tag 'gpio/shared-gpios-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git into gpio/for-next

Immutable branch between the GPIO, ASoC and regulator trees for v6.19-rc1

Add better support for GPIOs shared by multiple consumers.

1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/string.h b/include/linux/string.h
index fdd3442c6bcb..929d05d1247c 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -562,4 +562,22 @@ static inline bool strstarts(const char *str, const char *prefix)
 	return strncmp(str, prefix, strlen(prefix)) == 0;
 }
 
+/**
+ * strends - Check if a string ends with another string.
+ * @str - NULL-terminated string to check against @suffix
+ * @suffix - NULL-terminated string defining the suffix to look for in @str
+ *
+ * Returns:
+ * True if @str ends with @suffix. False in all other cases.
+ */
+static inline bool strends(const char *str, const char *suffix)
+{
+	unsigned int str_len = strlen(str), suffix_len = strlen(suffix);
+
+	if (str_len < suffix_len)
+		return false;
+
+	return !(strcmp(str + str_len - suffix_len, suffix));
+}
+
 #endif /* _LINUX_STRING_H_ */