[3/5] compiler-gcc: remove attribute support check for `__no_sanitize_thread__`

Message ID 20221021115956.9947-3-ojeda@kernel.org
State New
Headers
Series [1/5] compiler-gcc: be consistent with underscores use for `no_sanitize` |

Commit Message

Miguel Ojeda Oct. 21, 2022, 11:59 a.m. UTC
  The attribute was added in GCC 5.1, which matches the minimum GCC version
supported by the kernel.

Therefore, remove the check.

Link: https://godbolt.org/z/vbxKejxbx
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---
 include/linux/compiler-gcc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Comments

Marco Elver Oct. 21, 2022, 2:55 p.m. UTC | #1
On Fri, 21 Oct 2022 at 05:00, Miguel Ojeda <ojeda@kernel.org> wrote:
>
> The attribute was added in GCC 5.1, which matches the minimum GCC version
> supported by the kernel.
>
> Therefore, remove the check.
>
> Link: https://godbolt.org/z/vbxKejxbx
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Acked-by: Marco Elver <elver@google.com>

> ---
>  include/linux/compiler-gcc.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> index bfce7f4d0978..ba207deb77ca 100644
> --- a/include/linux/compiler-gcc.h
> +++ b/include/linux/compiler-gcc.h
> @@ -84,7 +84,7 @@
>
>  #define __no_sanitize_address __attribute__((__no_sanitize_address__))
>
> -#if defined(__SANITIZE_THREAD__) && __has_attribute(__no_sanitize_thread__)
> +#if defined(__SANITIZE_THREAD__)
>  #define __no_sanitize_thread __attribute__((__no_sanitize_thread__))
>  #else
>  #define __no_sanitize_thread
> --
> 2.38.1
>
  
Kees Cook Oct. 21, 2022, 4:11 p.m. UTC | #2
On Fri, Oct 21, 2022 at 01:59:54PM +0200, Miguel Ojeda wrote:
> The attribute was added in GCC 5.1, which matches the minimum GCC version
> supported by the kernel.
> 
> Therefore, remove the check.
> 
> Link: https://godbolt.org/z/vbxKejxbx
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Reviewed-by: Kees Cook <keescook@chromium.org>
  
Nathan Chancellor Oct. 21, 2022, 9:18 p.m. UTC | #3
On Fri, Oct 21, 2022 at 01:59:54PM +0200, Miguel Ojeda wrote:
> The attribute was added in GCC 5.1, which matches the minimum GCC version
> supported by the kernel.
> 
> Therefore, remove the check.
> 
> Link: https://godbolt.org/z/vbxKejxbx
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Reviewed-by: Nathan Chancellor <nathan@kernel.org>

> ---
>  include/linux/compiler-gcc.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> index bfce7f4d0978..ba207deb77ca 100644
> --- a/include/linux/compiler-gcc.h
> +++ b/include/linux/compiler-gcc.h
> @@ -84,7 +84,7 @@
>  
>  #define __no_sanitize_address __attribute__((__no_sanitize_address__))
>  
> -#if defined(__SANITIZE_THREAD__) && __has_attribute(__no_sanitize_thread__)
> +#if defined(__SANITIZE_THREAD__)
>  #define __no_sanitize_thread __attribute__((__no_sanitize_thread__))
>  #else
>  #define __no_sanitize_thread
> -- 
> 2.38.1
> 
>
  

Patch

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index bfce7f4d0978..ba207deb77ca 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -84,7 +84,7 @@ 
 
 #define __no_sanitize_address __attribute__((__no_sanitize_address__))
 
-#if defined(__SANITIZE_THREAD__) && __has_attribute(__no_sanitize_thread__)
+#if defined(__SANITIZE_THREAD__)
 #define __no_sanitize_thread __attribute__((__no_sanitize_thread__))
 #else
 #define __no_sanitize_thread