Hi, Yury,
On Thu, Jul 17, 2025 at 12:59 AM Yury Norov <yury.norov@xxxxxxxxx> wrote:
>
> From: "Yury Norov (NVIDIA)" <yury.norov@xxxxxxxxx>
>
> The function opencodes for_each_set_bit() macro, which makes it bulky.
> Using the proper API makes all the housekeeping code going away.
>
> Signed-off-by: Yury Norov (NVIDIA) <yury.norov@xxxxxxxxx>
> ---
> arch/loongarch/kvm/interrupt.c | 25 ++++---------------------
> 1 file changed, 4 insertions(+), 21 deletions(-)
>
> diff --git a/arch/loongarch/kvm/interrupt.c b/arch/loongarch/kvm/interrupt.c
> index 4c3f22de4b40..8462083f0301 100644
> --- a/arch/loongarch/kvm/interrupt.c
> +++ b/arch/loongarch/kvm/interrupt.c
> @@ -83,28 +83,11 @@ void kvm_deliver_intr(struct kvm_vcpu *vcpu)
> unsigned long *pending = &vcpu->arch.irq_pending;
> unsigned long *pending_clr = &vcpu->arch.irq_clear;
>
> - if (!(*pending) && !(*pending_clr))
> - return;
Is it necessary to keep these two lines?
Huacai
> -
> - if (*pending_clr) {
> - priority = __ffs(*pending_clr);
> - while (priority <= INT_IPI) {
> - kvm_irq_clear(vcpu, priority);
> - priority = find_next_bit(pending_clr,
> - BITS_PER_BYTE * sizeof(*pending_clr),
> - priority + 1);
> - }
> - }
> + for_each_set_bit(priority, pending_clr, INT_IPI + 1)
> + kvm_irq_clear(vcpu, priority);
>
> - if (*pending) {
> - priority = __ffs(*pending);
> - while (priority <= INT_IPI) {
> - kvm_irq_deliver(vcpu, priority);
> - priority = find_next_bit(pending,
> - BITS_PER_BYTE * sizeof(*pending),
> - priority + 1);
> - }
> - }
> + for_each_set_bit(priority, pending, INT_IPI + 1)
> + kvm_irq_deliver(vcpu, priority);
> }
>
> int kvm_pending_timer(struct kvm_vcpu *vcpu)
> --
> 2.43.0
>
>
