linux-hardening - [PATCH v1 1/1] string: Group str_has

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Message-ID: <20250711085514.1294428-1-andriy.shevchenko@linux.intel.com>
Date: Fri, 11 Jul 2025 11:55:14 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: linux-hardening@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Kees Cook <kees@...nel.org>,
	Andy Shevchenko <andy@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] string: Group str_has_prefix() and strstarts()

The two str_has_prefix() and strstarts() are about the same
with a slight difference on what they return. Group them in
the header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 include/linux/string.h | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/linux/string.h b/include/linux/string.h
index 01621ad0f598..fdd3442c6bcb 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -345,16 +345,6 @@ extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
 
 int ptr_to_hashval(const void *ptr, unsigned long *hashval_out);
 
-/**
- * strstarts - does @str start with @prefix?
- * @str: string to examine
- * @prefix: prefix to look for.
- */
-static inline bool strstarts(const char *str, const char *prefix)
-{
-	return strncmp(str, prefix, strlen(prefix)) == 0;
-}
-
 size_t memweight(const void *ptr, size_t bytes);
 
 /**
@@ -562,4 +552,14 @@ static __always_inline size_t str_has_prefix(const char *str, const char *prefix
 	return strncmp(str, prefix, len) == 0 ? len : 0;
 }
 
+/**
+ * strstarts - does @str start with @prefix?
+ * @str: string to examine
+ * @prefix: prefix to look for.
+ */
+static inline bool strstarts(const char *str, const char *prefix)
+{
+	return strncmp(str, prefix, strlen(prefix)) == 0;
+}
+
 #endif /* _LINUX_STRING_H_ */
-- 
2.47.2