Commit 5b250fac authored by Alvaro Karsz's avatar Alvaro Karsz Committed by Michael S. Tsirkin
Browse files

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: default avatarAlvaro Karsz <alvaro.karsz@solid-run.com>
Message-Id: <20230409120242.3460074-1-alvaro.karsz@solid-run.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 51b6e6c1

drivers/vdpa/solidrun/snet_main.c

+3 −3
Original line number Diff line number Diff line
@@ -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);