Re: [PATCH v2] powerpc/uaccess: correct check for CONFIG_PPC_E500 in mask_user_address()

["Christophe Leroy (CS GROUP)" <chleroy@kernel.org>]

Le 16/06/2026 à 01:37, Ethan Nelson-Moore a écrit :
> mask_user_address() incorrectly checks for CONFIG_E500 instead of
> CONFIG_PPC_E500, causing mask_user_address_isel() to not be used on
> E500 hardware. Fix the check to use the correct name.
> 
> Fixes: 861574d51bbd ("powerpc/uaccess: Implement masked user access")
> Cc: stable@vger.kernel.org # 7.0+
> 
> Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>

Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

> ---
> Changes in v2: Correct explanation and Fixes tag (thanks Christophe)
> 
>   arch/powerpc/include/asm/uaccess.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
> index e98c628e3899..619270bb7380 100644
> --- a/arch/powerpc/include/asm/uaccess.h
> +++ b/arch/powerpc/include/asm/uaccess.h
> @@ -511,7 +511,7 @@ static inline void __user *mask_user_address(const void __user *ptr)
>   
>   	if (IS_ENABLED(CONFIG_PPC64))
>   		return mask_user_address_simple(ptr);
> -	if (IS_ENABLED(CONFIG_E500))
> +	if (IS_ENABLED(CONFIG_PPC_E500))
>   		return mask_user_address_isel(ptr);
>   	if (TASK_SIZE <= UL(SZ_2G) && border >= UL(SZ_2G))
>   		return mask_user_address_simple(ptr);