[PATCH v2 2/3] riscv: vector: allow non-preemptible kernel-mode vector with IRQs off

[Sebastian Andrzej Siewior]

On 2026-07-15 00:16:21 [-0500], Andy Chiu wrote:
> diff --git a/arch/riscv/kernel/kernel_mode_vector.c b/arch/riscv/kernel/kernel_mode_vector.c
> index 307ac369c3d4..6627e1a82e19 100644
> --- a/arch/riscv/kernel/kernel_mode_vector.c
> +++ b/arch/riscv/kernel/kernel_mode_vector.c
> @@ -55,13 +55,16 @@ void get_cpu_vector_context(void)
>  	 * disable softirqs so it is impossible for softirqs to nest
>  	 * get_cpu_vector_context() when kernel is actively using Vector.
>  	 */
> -	if (!IS_ENABLED(CONFIG_PREEMPT_RT))
> -		local_bh_disable();
> -	else
> +	if (!IS_ENABLED(CONFIG_PREEMPT_RT)) {
> +		if (!irqs_disabled())
> +			local_bh_disable();
> +	} else {
>  		preempt_disable();
> +	}
>  
>  	riscv_v_start(RISCV_KERNEL_MODE_V);
>  }
> +EXPORT_SYMBOL_GPL(get_cpu_vector_context);

EXPORT_SYMBOL_FOR_KVM ?

Sebastian