[PATCH v12 01/28] mm: VM_SHADOW_STACK definition for riscv

[Alexandre Ghiti]

Hi Deepak,

On 14/03/2025 22:39, Deepak Gupta wrote:
> VM_HIGH_ARCH_5 is used for riscv
>
> Reviewed-by: Zong Li <zong.li at sifive.com>
> Signed-off-by: Deepak Gupta <debug at rivosinc.com>
> ---
>   include/linux/mm.h | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 7b1068ddcbb7..1ef231cbc8fe 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -378,6 +378,13 @@ extern unsigned int kobjsize(const void *objp);
>   # define VM_SHADOW_STACK	VM_HIGH_ARCH_6
>   #endif
>   
> +#if defined(CONFIG_RISCV_USER_CFI)
> +/*
> + * Following x86 and picking up the same bitpos.
> + */
> +# define VM_SHADOW_STACK	VM_HIGH_ARCH_5
> +#endif
> +
>   #ifndef VM_SHADOW_STACK
>   # define VM_SHADOW_STACK	VM_NONE
>   #endif
>

Reviewed-by: Alexandre Ghiti <alexghiti at rivosinc.com>

Thanks,

Alex