* [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig
@ 2024-07-15 19:28 Masahiro Yamada
2024-07-16 4:19 ` Anshuman Khandual
2024-07-23 15:46 ` Will Deacon
0 siblings, 2 replies; 3+ messages in thread
From: Masahiro Yamada @ 2024-07-15 19:28 UTC (permalink / raw)
To: Catalin Marinas, Will Deacon, linux-arm-kernel
Cc: linux-kernel, Masahiro Yamada, Randy Dunlap, Mark Rutland
Since commit 0383808e4d99 ("arm64: kasan: Reduce minimum shadow
alignment and enable 5 level paging"), HAVE_ARCH_KASAN is always 'y'.
The condition 'if HAVE_ARCH_KASAN' is always met.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---
Changes in v2:
- update description
- add reviewed-by and acked-by
arch/arm64/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c87d16b12e9b..d37cbfc3031e 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -167,9 +167,9 @@ config ARM64
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
select HAVE_ARCH_KASAN
- select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
- select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
- select HAVE_ARCH_KASAN_HW_TAGS if (HAVE_ARCH_KASAN && ARM64_MTE)
+ select HAVE_ARCH_KASAN_VMALLOC
+ select HAVE_ARCH_KASAN_SW_TAGS
+ select HAVE_ARCH_KASAN_HW_TAGS if ARM64_MTE
# Some instrumentation may be unsound, hence EXPERT
select HAVE_ARCH_KCSAN if EXPERT
select HAVE_ARCH_KFENCE
--
2.43.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig
2024-07-15 19:28 [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig Masahiro Yamada
@ 2024-07-16 4:19 ` Anshuman Khandual
2024-07-23 15:46 ` Will Deacon
1 sibling, 0 replies; 3+ messages in thread
From: Anshuman Khandual @ 2024-07-16 4:19 UTC (permalink / raw)
To: Masahiro Yamada, Catalin Marinas, Will Deacon, linux-arm-kernel
Cc: linux-kernel, Randy Dunlap, Mark Rutland
On 7/16/24 00:58, Masahiro Yamada wrote:
> Since commit 0383808e4d99 ("arm64: kasan: Reduce minimum shadow
> alignment and enable 5 level paging"), HAVE_ARCH_KASAN is always 'y'.
>
> The condition 'if HAVE_ARCH_KASAN' is always met.
>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
> Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
>
> Changes in v2:
> - update description
> - add reviewed-by and acked-by
>
> arch/arm64/Kconfig | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index c87d16b12e9b..d37cbfc3031e 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -167,9 +167,9 @@ config ARM64
> select HAVE_ARCH_JUMP_LABEL
> select HAVE_ARCH_JUMP_LABEL_RELATIVE
> select HAVE_ARCH_KASAN
> - select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
> - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
> - select HAVE_ARCH_KASAN_HW_TAGS if (HAVE_ARCH_KASAN && ARM64_MTE)
> + select HAVE_ARCH_KASAN_VMALLOC
> + select HAVE_ARCH_KASAN_SW_TAGS
> + select HAVE_ARCH_KASAN_HW_TAGS if ARM64_MTE
> # Some instrumentation may be unsound, hence EXPERT
> select HAVE_ARCH_KCSAN if EXPERT
> select HAVE_ARCH_KFENCE
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig
2024-07-15 19:28 [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig Masahiro Yamada
2024-07-16 4:19 ` Anshuman Khandual
@ 2024-07-23 15:46 ` Will Deacon
1 sibling, 0 replies; 3+ messages in thread
From: Will Deacon @ 2024-07-23 15:46 UTC (permalink / raw)
To: Catalin Marinas, linux-arm-kernel, Masahiro Yamada
Cc: kernel-team, Will Deacon, linux-kernel, Randy Dunlap,
Mark Rutland
On Tue, 16 Jul 2024 04:28:17 +0900, Masahiro Yamada wrote:
> Since commit 0383808e4d99 ("arm64: kasan: Reduce minimum shadow
> alignment and enable 5 level paging"), HAVE_ARCH_KASAN is always 'y'.
>
> The condition 'if HAVE_ARCH_KASAN' is always met.
>
>
Applied to arm64 (for-next/core), thanks!
[1/1] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig
https://git.kernel.org/arm64/c/62e2397c2203
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
^ permalink raw reply [flat|nested] 3+ messages in thread
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2024-07-15 19:28 [PATCH v2] arm64: remove redundant 'if HAVE_ARCH_KASAN' in Kconfig Masahiro Yamada
2024-07-16 4:19 ` Anshuman Khandual
2024-07-23 15:46 ` Will Deacon
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