linux-kernel - [PATCH 20/21] fortify-string: don't use GENMASK()

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Message-ID: <20251025164023.308884-21-yury.norov@gmail.com>
Date: Sat, 25 Oct 2025 12:40:19 -0400
From: "Yury Norov (NVIDIA)" <yury.norov@...il.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Nicolas Frattaroli <nicolas.frattaroli@...labora.com>,
	Kees Cook <kees@...nel.org>,
	linux-hardening@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: "Yury Norov (NVIDIA)" <yury.norov@...il.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: [PATCH 20/21] fortify-string: don't use GENMASK()

GENMASK(high, low) notation is confusing. BITS(low, high) is more
appropriate.

Signed-off-by: Yury Norov (NVIDIA) <yury.norov@...il.com>
---
 include/linux/fortify-string.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/fortify-string.h b/include/linux/fortify-string.h
index b3b53f8c1b28..0c95cdcca736 100644
--- a/include/linux/fortify-string.h
+++ b/include/linux/fortify-string.h
@@ -11,9 +11,9 @@
 #define __RENAME(x) __asm__(#x)
 
 #define FORTIFY_REASON_DIR(r)		FIELD_GET(BIT(0), r)
-#define FORTIFY_REASON_FUNC(r)		FIELD_GET(GENMASK(7, 1), r)
+#define FORTIFY_REASON_FUNC(r)		FIELD_GET(BITS(1, 7), r)
 #define FORTIFY_REASON(func, write)	(FIELD_PREP(BIT(0), write) | \
-					 FIELD_PREP(GENMASK(7, 1), func))
+					 FIELD_PREP(BITS(1, 7), func))
 
 /* Overridden by KUnit tests. */
 #ifndef fortify_panic
-- 
2.43.0