Linux Hardening
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From: Nathan Chancellor <nathan@kernel.org>
To: Nathan Chancellor <nathan@kernel.org>,
	Nicolas Schier <nsc@kernel.org>,
	 Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>,
	 Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
	 linux-kbuild@vger.kernel.org, Kees Cook <kees@kernel.org>,
	 "Gustavo A. R. Silva" <gustavoars@kernel.org>,
	 linux-hardening@vger.kernel.org,
	linux-security-module@vger.kernel.org
Subject: [PATCH 02/14] security/Kconfig.hardening: Remove tautological condition from CC_HAS_ZERO_CALL_USED_REGS
Date: Tue, 28 Apr 2026 22:59:08 -0400	[thread overview]
Message-ID: <20260428-bump-minimum-supported-llvm-version-to-17-v1-2-81d9b2e8ee75@kernel.org> (raw)
In-Reply-To: <20260428-bump-minimum-supported-llvm-version-to-17-v1-0-81d9b2e8ee75@kernel.org>

Now that the minimum supported version of LLVM for building the kernel
has been raised to 17.0.1, the '!Clang || Clang > 15.0.6' dependency for
CONFIG_CC_HAS_ZERO_CALL_USED_REGS is always true, so it can be removed.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: Kees Cook <kees@kernel.org>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: linux-hardening@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
---
 security/Kconfig.hardening | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index 86f8768c63d4..a0461d648396 100644
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -189,9 +189,6 @@ config INIT_ON_FREE_DEFAULT_ON
 
 config CC_HAS_ZERO_CALL_USED_REGS
 	def_bool $(cc-option,-fzero-call-used-regs=used-gpr)
-	# https://github.com/ClangBuiltLinux/linux/issues/1766
-	# https://github.com/llvm/llvm-project/issues/59242
-	depends on !CC_IS_CLANG || CLANG_VERSION > 150006
 
 config ZERO_CALL_USED_REGS
 	bool "Enable register zeroing on function exit"

-- 
2.54.0


  reply	other threads:[~2026-04-29  3:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-29  2:59 [PATCH 00/14] Bump minimum version of LLVM for building the kernel to 17.0.1 Nathan Chancellor
2026-04-29  2:59 ` Nathan Chancellor [this message]
2026-05-05 15:28   ` [PATCH 02/14] security/Kconfig.hardening: Remove tautological condition from CC_HAS_ZERO_CALL_USED_REGS Nicolas Schier
2026-04-29  2:59 ` [PATCH 03/14] security/Kconfig.hardening: Remove tautological condition from FORTIFY_SOURCE Nathan Chancellor
2026-05-05 15:28   ` Nicolas Schier
2026-04-29  2:59 ` [PATCH 04/14] security/Kconfig.hardening: Remove tautological condition from CC_HAS_RANDSTRUCT Nathan Chancellor
2026-05-05 15:28   ` Nicolas Schier
2026-04-29  2:59 ` [PATCH 08/14] riscv: Remove tautological condition from selection of ARCH_SUPPORTS_CFI Nathan Chancellor

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