Hello,

> diff --git a/mm/Kconfig b/mm/Kconfig
> index b4cb45255a54..45416916dec1 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -1249,6 +1249,12 @@ config IOMMU_MM_DATA
>  config EXECMEM
>       bool
>  
> +config ARCH_HAS_USER_SHADOW_STACK
> +     bool
> +     help
> +       The architecture has hardware support for userspace shadow call
> +          stacks (eg, x87 CET, arm64 GCS or RISC-V Zicfiss).

s/x87/x86/ ?

-- 
Thiago

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