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From: Nathan Chancellor <nathan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Kees Cook <kees@kernel.org>,
	 Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
	 Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>,
	 linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
	patches@lists.linux.dev,  Nathan Chancellor <nathan@kernel.org>,
	 Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	 linux-arm-kernel@lists.infradead.org
Subject: [PATCH 04/10] arm64: Remove tautological LLVM Kconfig conditions
Date: Mon, 18 Aug 2025 11:57:20 -0700	[thread overview]
Message-ID: <20250818-bump-min-llvm-ver-15-v1-4-c8b1d0f955e0@kernel.org> (raw)
In-Reply-To: <20250818-bump-min-llvm-ver-15-v1-0-c8b1d0f955e0@kernel.org>

Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, two sets of always true conditions can be
safely removed in the arm64 Kconfig file.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm64/Kconfig | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e9bbfacc35a6..41c05562e9af 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1492,8 +1492,6 @@ choice
 
 config CPU_BIG_ENDIAN
 	bool "Build big-endian kernel"
-	# https://github.com/llvm/llvm-project/commit/1379b150991f70a5782e9a143c2ba5308da1161c
-	depends on AS_IS_GNU || AS_VERSION >= 150000
 	help
 	  Say Y if you plan on running a kernel with a big-endian userspace.
 
@@ -2363,8 +2361,7 @@ config STACKPROTECTOR_PER_TASK
 
 config UNWIND_PATCH_PAC_INTO_SCS
 	bool "Enable shadow call stack dynamically using code patching"
-	# needs Clang with https://github.com/llvm/llvm-project/commit/de07cde67b5d205d58690be012106022aea6d2b3 incorporated
-	depends on CC_IS_CLANG && CLANG_VERSION >= 150000
+	depends on CC_IS_CLANG
 	depends on ARM64_PTR_AUTH_KERNEL && CC_HAS_BRANCH_PROT_PAC_RET
 	depends on SHADOW_CALL_STACK
 	select UNWIND_TABLES

-- 
2.50.1


  parent reply	other threads:[~2025-08-18 18:57 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-18 18:57 [PATCH 00/10] Bump minimum supported version of LLVM for building the kernel to 15.0.0 Nathan Chancellor
2025-08-18 18:57 ` [PATCH 01/10] kbuild: Bump minimum " Nathan Chancellor
2025-08-21 16:48   ` Nicolas Schier
2025-08-21 17:27   ` Arnd Bergmann
2025-08-18 18:57 ` [PATCH 02/10] arch/Kconfig: Drop always true condition from RANDOMIZE_KSTACK_OFFSET Nathan Chancellor
2025-08-18 18:57 ` [PATCH 03/10] ARM: Clean up definition of ARM_HAS_GROUP_RELOCS Nathan Chancellor
2025-08-18 18:57 ` Nathan Chancellor [this message]
2025-08-19 11:35   ` [PATCH 04/10] arm64: Remove tautological LLVM Kconfig conditions Will Deacon
2025-08-18 18:57 ` [PATCH 05/10] mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER Nathan Chancellor
2025-08-19 12:08   ` Thomas Bogendoerfer
2025-08-18 18:57 ` [PATCH 06/10] powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault() Nathan Chancellor
2025-08-18 18:57 ` [PATCH 07/10] riscv: Remove version check for LTO_CLANG selects Nathan Chancellor
2025-08-20  7:23   ` Alexandre Ghiti
2025-08-20 16:11     ` Nathan Chancellor
2025-08-18 18:57 ` [PATCH 08/10] lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT Nathan Chancellor
2025-08-18 18:57 ` [PATCH 09/10] objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY Nathan Chancellor
2025-08-18 19:12   ` Peter Zijlstra
2025-08-19 10:35   ` Marco Elver
2025-08-18 18:57 ` [PATCH 10/10] KMSAN: Remove tautological checks Nathan Chancellor
2025-08-19 11:02   ` Marco Elver
2025-08-19  0:55 ` [PATCH 00/10] Bump minimum supported version of LLVM for building the kernel to 15.0.0 Kees Cook

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