diff options
| author | Alvaro Karsz <alvaro.karsz@solid-run.com> | 2023-04-09 15:02:42 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-04-21 03:02:35 -0400 |
| commit | 5b250fac7c76b670dd1b28b67f1a91a1907bc117 (patch) | |
| tree | 128053f329f4532d651f5077e9bdc9f9e095a502 /drivers/vdpa | |
| parent | 51b6e6c1c8e382c50fe88a04e25d326ceff74f89 (diff) | |
| download | linux-5b250fac7c76b670dd1b28b67f1a91a1907bc117.tar.gz | |
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 <alvaro.karsz@solid-run.com>
Message-Id: <20230409120242.3460074-1-alvaro.karsz@solid-run.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/solidrun/snet_main.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c index da14d437af336..cdcd84ce4f5a9 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); |