linux-hardening - [PATCH v2 07/10] lib/string_choices: Add str_to

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Message-ID: <87ldtlpmp1.wl-kuninori.morimoto.gx@renesas.com>
Date: Tue, 4 Mar 2025 02:13:46 +0000
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To: Andy Shevchenko <andy@...nel.org>, Kees Cook <kees@...nel.org>,
	<linux-hardening@...r.kernel.org>, Andy Shevchenko <andy@...nel.org>, Kees
 Cook <kees@...nel.org>, <linux-hardening@...r.kernel.org>
Subject: [PATCH v2 07/10] lib/string_choices: Add str_to_from() helper

Add str_to_from() helper to return "to" or "from" string literal.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
 include/linux/string_choices.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/string_choices.h b/include/linux/string_choices.h
index d52ced93e21e..e07a9a5e403e 100644
--- a/include/linux/string_choices.h
+++ b/include/linux/string_choices.h
@@ -107,6 +107,12 @@ static inline const char *str_pass_fail(bool v)
 }
 #define str_fail_pass(v)	str_pass_fail(!(v))
 
+static inline const char *str_to_from(bool v)
+{
+	return v ? "to" : "from";
+}
+#define str_from_to(v)		str_to_from(!(v))
+
 /**
  * str_plural - Return the simple pluralization based on English counts
  * @num: Number used for deciding pluralization
-- 
2.43.0