From 5b250fac7c76b670dd1b28b67f1a91a1907bc117 Mon Sep 17 00:00:00 2001 From: Alvaro Karsz Date: Sun, 9 Apr 2023 15:02:42 +0300 Subject: vdpa/snet: use likely/unlikely macros in hot functions - kick callback: most likely that the VQ is ready. - interrupt handlers: most likely that the callback is not NULL. Signed-off-by: Alvaro Karsz Message-Id: <20230409120242.3460074-1-alvaro.karsz@solid-run.com> Signed-off-by: Michael S. Tsirkin --- drivers/vdpa/solidrun/snet_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/vdpa/solidrun') diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c index da14d437af33..cdcd84ce4f5a 100644 --- a/drivers/vdpa/solidrun/snet_main.c +++ b/drivers/vdpa/solidrun/snet_main.c @@ -39,7 +39,7 @@ static irqreturn_t snet_cfg_irq_hndlr(int irq, void *data) { struct snet *snet = data; /* Call callback if any */ - if (snet->cb.callback) + if (likely(snet->cb.callback)) return snet->cb.callback(snet->cb.private); return IRQ_HANDLED; @@ -49,7 +49,7 @@ static irqreturn_t snet_vq_irq_hndlr(int irq, void *data) { struct snet_vq *vq = data; /* Call callback if any */ - if (vq->cb.callback) + if (likely(vq->cb.callback)) return vq->cb.callback(vq->cb.private); return IRQ_HANDLED; @@ -106,7 +106,7 @@ static void snet_kick_vq(struct vdpa_device *vdev, u16 idx) { struct snet *snet = vdpa_to_snet(vdev); /* not ready - ignore */ - if (!snet->vqs[idx]->ready) + if (unlikely(!snet->vqs[idx]->ready)) return; iowrite32(SNET_KICK_VAL, snet->vqs[idx]->kick_ptr); -- cgit v1.2.3