[PATCH v2 00/12] Bump minimum supported version of LLVM for building the kernel to 15.0.0

[PATCH v2 00/12] Bump minimum supported version of LLVM for building the kernel to 15.0.0

[Nathan Chancellor]

s390 and x86 have required LLVM 15 since

  30d17fac6aae ("scripts/min-tool-version.sh: raise minimum clang version to 15.0.0 for s390")
  7861640aac52 ("x86/build: Raise the minimum LLVM version to 15.0.0")

respectively. This series bumps the rest of the kernel to 15.0.0 to
match, which allows for a decent number of clean ups.

On the distros front, we will only leave behind Debian Bookworm and
Ubuntu Jammy. In both of those cases, builders / developers can either
use the kernel.org toolchains or https://apt.llvm.org to get newer
versions that will run on those distributions, if they cannot upgrade.

  archlinux:latest              clang version 20.1.8
  debian:oldoldstable-slim      Debian clang version 11.0.1-2
  debian:oldstable-slim         Debian clang version 14.0.6
  debian:stable-slim            Debian clang version 19.1.7 (3+b1)
  debian:testing-slim           Debian clang version 19.1.7 (3+b1)
  debian:unstable-slim          Debian clang version 19.1.7 (3+b2)
  fedora:41                     clang version 19.1.7 (Fedora 19.1.7-4.fc41)
  fedora:latest                 clang version 20.1.8 (Fedora 20.1.8-3.fc42)
  fedora:rawhide                clang version 20.1.8 (Fedora 20.1.8-3.fc43)
  opensuse/leap:latest          clang version 17.0.6
  opensuse/tumbleweed:latest    clang version 20.1.8
  ubuntu:focal                  clang version 10.0.0-4ubuntu1
  ubuntu:jammy                  Ubuntu clang version 14.0.0-1ubuntu1.1
  ubuntu:noble                  Ubuntu clang version 18.1.3 (1ubuntu1)
  ubuntu:latest                 Ubuntu clang version 18.1.3 (1ubuntu1)
  ubuntu:rolling                Ubuntu clang version 20.1.2 (0ubuntu1)
  ubuntu:devel                  Ubuntu clang version 20.1.8 (0ubuntu1)

I plan to carry this via the Kbuild tree with the appropriate acks.

---
Changes in v2:
- Add two new patches for RISC-V to clean up more LLD_VERSION checks
  (Alex)
- Pick up provided tags (thanks all!)
- Link to v1: https://lore.kernel.org/r/20250818-bump-min-llvm-ver-15-v1-0-c8b1d0f955e0@kernel.org

---
Nathan Chancellor (12):
      kbuild: Bump minimum version of LLVM for building the kernel to 15.0.0
      arch/Kconfig: Drop always true condition from RANDOMIZE_KSTACK_OFFSET
      ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
      arm64: Remove tautological LLVM Kconfig conditions
      mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
      powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
      riscv: Remove version check for LTO_CLANG selects
      riscv: Unconditionally use linker relaxation
      riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
      lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
      objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
      KMSAN: Remove tautological checks

 Documentation/process/changes.rst |  2 +-
 arch/Kconfig                      |  1 -
 arch/arm/Kconfig                  | 11 ++++-------
 arch/arm64/Kconfig                |  5 +----
 arch/mips/Kconfig                 |  2 +-
 arch/powerpc/include/asm/inst.h   |  4 ----
 arch/riscv/Kconfig                | 21 +++++++--------------
 arch/riscv/Makefile               |  9 +--------
 lib/Kconfig.debug                 |  2 +-
 lib/Kconfig.kcsan                 |  6 ------
 lib/Kconfig.kmsan                 | 11 +----------
 scripts/min-tool-version.sh       |  6 ++----
 tools/objtool/check.c             | 10 ----------
 13 files changed, 19 insertions(+), 71 deletions(-)
---
base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585
change-id: 20250710-bump-min-llvm-ver-15-95231f1eb655

Best regards,
--  
Nathan Chancellor <nathan@kernel.org>


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[PATCH v2 07/12] riscv: Remove version check for LTO_CLANG selects

[Nathan Chancellor]

Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, there is no need to check the LLD version
before selecting ARCH_SUPPORTS_LTO_CLANG{,_THIN} because it will always
be true.

Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-riscv@lists.infradead.org

Small note, this will conflict with
https://lore.kernel.org/20250710-riscv-restrict-lto-to-medany-v1-1-b1dac9871ecf@kernel.org/
but I think it is simple enough to deal with.
---
 arch/riscv/Kconfig | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index a4b233a0659e..1d53bf02d0fa 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -64,9 +64,8 @@ config RISCV
 	select ARCH_SUPPORTS_DEBUG_PAGEALLOC if MMU
 	select ARCH_SUPPORTS_HUGE_PFNMAP if TRANSPARENT_HUGEPAGE
 	select ARCH_SUPPORTS_HUGETLBFS if MMU
-	# LLD >= 14: https://github.com/llvm/llvm-project/issues/50505
-	select ARCH_SUPPORTS_LTO_CLANG if LLD_VERSION >= 140000
-	select ARCH_SUPPORTS_LTO_CLANG_THIN if LLD_VERSION >= 140000
+	select ARCH_SUPPORTS_LTO_CLANG
+	select ARCH_SUPPORTS_LTO_CLANG_THIN
 	select ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS if 64BIT && MMU
 	select ARCH_SUPPORTS_PAGE_TABLE_CHECK if MMU
 	select ARCH_SUPPORTS_PER_VMA_LOCK if MMU

-- 
2.50.1


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[PATCH v2 08/12] riscv: Unconditionally use linker relaxation

[Nathan Chancellor]

Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, CONFIG_RISCV_USE_LINKER_RELAXATION will
always be enabled, so it can be removed.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-riscv@lists.infradead.org
---
 arch/riscv/Kconfig  | 6 ------
 arch/riscv/Makefile | 9 +--------
 2 files changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 1d53bf02d0fa..d482236e93f4 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -246,15 +246,9 @@ config HAVE_SHADOW_CALL_STACK
 	# https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a484e843e6eeb51f0cb7b8819e50da6d2444d769
 	depends on $(ld-option,--no-relax-gp)
 
-config RISCV_USE_LINKER_RELAXATION
-	def_bool y
-	# https://github.com/llvm/llvm-project/commit/6611d58f5bbcbec77262d392e2923e1d680f6985
-	depends on !LD_IS_LLD || LLD_VERSION >= 150000
-
 # https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6
 config ARCH_HAS_BROKEN_DWARF5
 	def_bool y
-	depends on RISCV_USE_LINKER_RELAXATION
 	# https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a
 	depends on AS_IS_LLVM && AS_VERSION < 180000
 	# https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index df57654a615e..ecf2fcce2d92 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -46,17 +46,10 @@ else
 	KBUILD_LDFLAGS += -melf32lriscv
 endif
 
-ifndef CONFIG_RISCV_USE_LINKER_RELAXATION
-	KBUILD_CFLAGS += -mno-relax
-	KBUILD_AFLAGS += -mno-relax
-ifndef CONFIG_AS_IS_LLVM
-	KBUILD_CFLAGS += -Wa,-mno-relax
-	KBUILD_AFLAGS += -Wa,-mno-relax
-endif
 # LLVM has an issue with target-features and LTO: https://github.com/llvm/llvm-project/issues/59350
 # Ensure it is aware of linker relaxation with LTO, otherwise relocations may
 # be incorrect: https://github.com/llvm/llvm-project/issues/65090
-else ifeq ($(CONFIG_LTO_CLANG),y)
+ifeq ($(CONFIG_LTO_CLANG),y)
 	KBUILD_LDFLAGS += -mllvm -mattr=+c -mllvm -mattr=+relax
 endif
 

-- 
2.50.1


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[PATCH v2 09/12] riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs

[Nathan Chancellor]

Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, several ld.lld version checks become
tautological, as they are always true. Replace them with a simple
CONFIG_LD_IS_LLD check.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-riscv@lists.infradead.org
---
 arch/riscv/Kconfig | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index d482236e93f4..850ba4b4b534 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -620,7 +620,7 @@ config TOOLCHAIN_HAS_V
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv)
-	depends on LLD_VERSION >= 140000 || LD_VERSION >= 23800
+	depends on LD_IS_LLD || LD_VERSION >= 23800
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_V
@@ -721,7 +721,7 @@ config TOOLCHAIN_HAS_ZBB
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbb)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbb)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 # This symbol indicates that the toolchain supports all v1.0 vector crypto
@@ -736,7 +736,7 @@ config TOOLCHAIN_HAS_ZBA
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zba)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zba)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBA
@@ -771,7 +771,7 @@ config TOOLCHAIN_HAS_ZBC
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBC
@@ -794,7 +794,7 @@ config TOOLCHAIN_HAS_ZBKB
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbkb)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbkb)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBKB

-- 
2.50.1


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Re: [PATCH v2 07/12] riscv: Remove version check for LTO_CLANG selects

[Alexandre Ghiti]

Hi Nathan,

On 8/21/25 23:15, Nathan Chancellor wrote:
> Now that the minimum supported version of LLVM for building the kernel
> has been bumped to 15.0.0, there is no need to check the LLD version
> before selecting ARCH_SUPPORTS_LTO_CLANG{,_THIN} because it will always
> be true.
>
> Reviewed-by: Kees Cook <kees@kernel.org>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Alexandre Ghiti <alex@ghiti.fr>
> Cc: linux-riscv@lists.infradead.org
>
> Small note, this will conflict with
> https://lore.kernel.org/20250710-riscv-restrict-lto-to-medany-v1-1-b1dac9871ecf@kernel.org/
> but I think it is simple enough to deal with.
> ---
>   arch/riscv/Kconfig | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index a4b233a0659e..1d53bf02d0fa 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -64,9 +64,8 @@ config RISCV
>   	select ARCH_SUPPORTS_DEBUG_PAGEALLOC if MMU
>   	select ARCH_SUPPORTS_HUGE_PFNMAP if TRANSPARENT_HUGEPAGE
>   	select ARCH_SUPPORTS_HUGETLBFS if MMU
> -	# LLD >= 14: https://github.com/llvm/llvm-project/issues/50505
> -	select ARCH_SUPPORTS_LTO_CLANG if LLD_VERSION >= 140000
> -	select ARCH_SUPPORTS_LTO_CLANG_THIN if LLD_VERSION >= 140000
> +	select ARCH_SUPPORTS_LTO_CLANG
> +	select ARCH_SUPPORTS_LTO_CLANG_THIN
>   	select ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS if 64BIT && MMU
>   	select ARCH_SUPPORTS_PAGE_TABLE_CHECK if MMU
>   	select ARCH_SUPPORTS_PER_VMA_LOCK if MMU
>

Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Thanks,

Alex


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Re: [PATCH v2 08/12] riscv: Unconditionally use linker relaxation

[Alexandre Ghiti]

On 8/21/25 23:15, Nathan Chancellor wrote:
> Now that the minimum supported version of LLVM for building the kernel
> has been bumped to 15.0.0, CONFIG_RISCV_USE_LINKER_RELAXATION will
> always be enabled, so it can be removed.
>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Alexandre Ghiti <alex@ghiti.fr>
> Cc: linux-riscv@lists.infradead.org
> ---
>   arch/riscv/Kconfig  | 6 ------
>   arch/riscv/Makefile | 9 +--------
>   2 files changed, 1 insertion(+), 14 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 1d53bf02d0fa..d482236e93f4 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -246,15 +246,9 @@ config HAVE_SHADOW_CALL_STACK
>   	# https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a484e843e6eeb51f0cb7b8819e50da6d2444d769
>   	depends on $(ld-option,--no-relax-gp)
>   
> -config RISCV_USE_LINKER_RELAXATION
> -	def_bool y
> -	# https://github.com/llvm/llvm-project/commit/6611d58f5bbcbec77262d392e2923e1d680f6985
> -	depends on !LD_IS_LLD || LLD_VERSION >= 150000
> -
>   # https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6
>   config ARCH_HAS_BROKEN_DWARF5
>   	def_bool y
> -	depends on RISCV_USE_LINKER_RELAXATION
>   	# https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a
>   	depends on AS_IS_LLVM && AS_VERSION < 180000
>   	# https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77
> diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
> index df57654a615e..ecf2fcce2d92 100644
> --- a/arch/riscv/Makefile
> +++ b/arch/riscv/Makefile
> @@ -46,17 +46,10 @@ else
>   	KBUILD_LDFLAGS += -melf32lriscv
>   endif
>   
> -ifndef CONFIG_RISCV_USE_LINKER_RELAXATION
> -	KBUILD_CFLAGS += -mno-relax
> -	KBUILD_AFLAGS += -mno-relax
> -ifndef CONFIG_AS_IS_LLVM
> -	KBUILD_CFLAGS += -Wa,-mno-relax
> -	KBUILD_AFLAGS += -Wa,-mno-relax
> -endif
>   # LLVM has an issue with target-features and LTO: https://github.com/llvm/llvm-project/issues/59350
>   # Ensure it is aware of linker relaxation with LTO, otherwise relocations may
>   # be incorrect: https://github.com/llvm/llvm-project/issues/65090
> -else ifeq ($(CONFIG_LTO_CLANG),y)
> +ifeq ($(CONFIG_LTO_CLANG),y)
>   	KBUILD_LDFLAGS += -mllvm -mattr=+c -mllvm -mattr=+relax
>   endif
>   
>

Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Thanks,

Alex


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Re: [PATCH v2 09/12] riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs

[Alexandre Ghiti]

On 8/21/25 23:15, Nathan Chancellor wrote:
> Now that the minimum supported version of LLVM for building the kernel
> has been bumped to 15.0.0, several ld.lld version checks become
> tautological, as they are always true. Replace them with a simple
> CONFIG_LD_IS_LLD check.
>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Alexandre Ghiti <alex@ghiti.fr>
> Cc: linux-riscv@lists.infradead.org
> ---
>   arch/riscv/Kconfig | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index d482236e93f4..850ba4b4b534 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -620,7 +620,7 @@ config TOOLCHAIN_HAS_V
>   	default y
>   	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv)
>   	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv)
> -	depends on LLD_VERSION >= 140000 || LD_VERSION >= 23800
> +	depends on LD_IS_LLD || LD_VERSION >= 23800
>   	depends on AS_HAS_OPTION_ARCH
>   
>   config RISCV_ISA_V
> @@ -721,7 +721,7 @@ config TOOLCHAIN_HAS_ZBB
>   	default y
>   	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbb)
>   	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbb)
> -	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
> +	depends on LD_IS_LLD || LD_VERSION >= 23900
>   	depends on AS_HAS_OPTION_ARCH
>   
>   # This symbol indicates that the toolchain supports all v1.0 vector crypto
> @@ -736,7 +736,7 @@ config TOOLCHAIN_HAS_ZBA
>   	default y
>   	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zba)
>   	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zba)
> -	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
> +	depends on LD_IS_LLD || LD_VERSION >= 23900
>   	depends on AS_HAS_OPTION_ARCH
>   
>   config RISCV_ISA_ZBA
> @@ -771,7 +771,7 @@ config TOOLCHAIN_HAS_ZBC
>   	default y
>   	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
>   	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
> -	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
> +	depends on LD_IS_LLD || LD_VERSION >= 23900
>   	depends on AS_HAS_OPTION_ARCH
>   
>   config RISCV_ISA_ZBC
> @@ -794,7 +794,7 @@ config TOOLCHAIN_HAS_ZBKB
>   	default y
>   	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbkb)
>   	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbkb)
> -	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
> +	depends on LD_IS_LLD || LD_VERSION >= 23900
>   	depends on AS_HAS_OPTION_ARCH
>   
>   config RISCV_ISA_ZBKB
>

Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Thanks for the v2!

Alex


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Re: [PATCH v2 09/12] riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs

[Conor Dooley]

[-- Attachment #1.1: Type: text/plain, Size: 423 bytes --]

On Thu, Aug 21, 2025 at 02:15:46PM -0700, Nathan Chancellor wrote:
> Now that the minimum supported version of LLVM for building the kernel
> has been bumped to 15.0.0, several ld.lld version checks become
> tautological, as they are always true. Replace them with a simple
> CONFIG_LD_IS_LLD check.
> 
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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Re: [PATCH v2 07/12] riscv: Remove version check for LTO_CLANG selects

[Conor Dooley]

[-- Attachment #1.1: Type: text/plain, Size: 463 bytes --]

On Thu, Aug 21, 2025 at 02:15:44PM -0700, Nathan Chancellor wrote:
> Now that the minimum supported version of LLVM for building the kernel
> has been bumped to 15.0.0, there is no need to check the LLD version
> before selecting ARCH_SUPPORTS_LTO_CLANG{,_THIN} because it will always
> be true.
> 
> Reviewed-by: Kees Cook <kees@kernel.org>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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Re: [PATCH v2 00/12] Bump minimum supported version of LLVM for building the kernel to 15.0.0

[Nathan Chancellor]

On Thu, 21 Aug 2025 14:15:37 -0700, Nathan Chancellor wrote:
> s390 and x86 have required LLVM 15 since
> 
>   30d17fac6aae ("scripts/min-tool-version.sh: raise minimum clang version to 15.0.0 for s390")
>   7861640aac52 ("x86/build: Raise the minimum LLVM version to 15.0.0")
> 
> respectively. This series bumps the rest of the kernel to 15.0.0 to
> match, which allows for a decent number of clean ups.
> 
> [...]

Applied, thanks!

[01/12] kbuild: Bump minimum version of LLVM for building the kernel to 15.0.0
        https://git.kernel.org/kbuild/c/20c0989283564
[02/12] arch/Kconfig: Drop always true condition from RANDOMIZE_KSTACK_OFFSET
        https://git.kernel.org/kbuild/c/65aebf6f5880e
[03/12] ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
        https://git.kernel.org/kbuild/c/02aba266e391f
[04/12] arm64: Remove tautological LLVM Kconfig conditions
        https://git.kernel.org/kbuild/c/23cb0514208da
[05/12] mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
        https://git.kernel.org/kbuild/c/e633c2e78fd1c
[06/12] powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
        https://git.kernel.org/kbuild/c/488954ca195d0
[07/12] riscv: Remove version check for LTO_CLANG selects
        https://git.kernel.org/kbuild/c/6578a1ff6aa49
[08/12] riscv: Unconditionally use linker relaxation
        https://git.kernel.org/kbuild/c/7ccbe91796d7b
[09/12] riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
        https://git.kernel.org/kbuild/c/87b28d71396bf
[10/12] lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
        https://git.kernel.org/kbuild/c/a817de20091c3
[11/12] objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
        https://git.kernel.org/kbuild/c/573ad421cc551
[12/12] KMSAN: Remove tautological checks
        https://git.kernel.org/kbuild/c/5ff8c11775c74

Best regards,
-- 
Nathan Chancellor <nathan@kernel.org>


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