[PATCH --fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro

[PATCH --fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro

[Song Shuai]

The commit be97d0db5f44 ("riscv: VMAP_STACK overflow
detection thread-safe") got rid of `shadow_stack`,
so SHADOW_OVERFLOW_STACK_SIZE should be removed too.

Fixes: be97d0db5f44 ("riscv: VMAP_STACK overflow detection thread-safe")
Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
---
 arch/riscv/include/asm/thread_info.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 574779900bfb..4856697c5f25 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -28,7 +28,6 @@
 
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
 #define OVERFLOW_STACK_SIZE     SZ_4K
-#define SHADOW_OVERFLOW_STACK_SIZE (1024)
 
 #define IRQ_STACK_SIZE		THREAD_SIZE
 
-- 
2.20.1


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Re: [PATCH --fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro

[Sami Tolvanen]

Hi,

On Mon, Dec 11, 2023 at 3:04 AM Song Shuai <songshuaishuai@tinylab.org> wrote:
>
> The commit be97d0db5f44 ("riscv: VMAP_STACK overflow
> detection thread-safe") got rid of `shadow_stack`,
> so SHADOW_OVERFLOW_STACK_SIZE should be removed too.
>
> Fixes: be97d0db5f44 ("riscv: VMAP_STACK overflow detection thread-safe")
> Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
> ---
>  arch/riscv/include/asm/thread_info.h | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
> index 574779900bfb..4856697c5f25 100644
> --- a/arch/riscv/include/asm/thread_info.h
> +++ b/arch/riscv/include/asm/thread_info.h
> @@ -28,7 +28,6 @@
>
>  #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
>  #define OVERFLOW_STACK_SIZE     SZ_4K
> -#define SHADOW_OVERFLOW_STACK_SIZE (1024)
>
>  #define IRQ_STACK_SIZE         THREAD_SIZE

Ah, good catch. Thanks for the patch!

Reviewed-by: Sami Tolvanen <samitolvanen@google.com>

Sami

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Re: [PATCH --fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro

[patchwork-bot+linux-riscv]

Hello:

This patch was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Mon, 11 Dec 2023 19:03:31 +0800 you wrote:
> The commit be97d0db5f44 ("riscv: VMAP_STACK overflow
> detection thread-safe") got rid of `shadow_stack`,
> so SHADOW_OVERFLOW_STACK_SIZE should be removed too.
> 
> Fixes: be97d0db5f44 ("riscv: VMAP_STACK overflow detection thread-safe")
> Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
> 
> [...]

Here is the summary with links:
  - [--fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro
    https://git.kernel.org/riscv/c/a7565f4d068b

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
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