diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2023-04-18 09:24:54 +0530 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-04-24 22:56:55 -0400 |
| commit | 91208dd297f2686b778210ffda49acbfe36bd3b6 (patch) | |
| tree | 3d8657283b6e3b442b7f25dcbccca14e5ca064b4 /hw/virtio | |
| parent | 2a3f8b333b6efbc0ccaacb318fb9c9d53f25bcfd (diff) | |
virtio: i2c: Check notifier helpers for VIRTIO_CONFIG_IRQ_IDX
Since the driver doesn't support interrupts, we must return early when
index is set to VIRTIO_CONFIG_IRQ_IDX.
Fixes: 544f0278afca ("virtio: introduce macro VIRTIO_CONFIG_IRQ_IDX")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Message-Id: <d53ec8bc002001eafac597f6bd9a8812df989257.1681790067.git.viresh.kumar@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/vhost-user-i2c.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/virtio/vhost-user-i2c.c b/hw/virtio/vhost-user-i2c.c index 60eaf0d95b..4eef3f0633 100644 --- a/hw/virtio/vhost-user-i2c.c +++ b/hw/virtio/vhost-user-i2c.c @@ -128,6 +128,14 @@ static void vu_i2c_guest_notifier_mask(VirtIODevice *vdev, int idx, bool mask) { VHostUserI2C *i2c = VHOST_USER_I2C(vdev); + /* + * We don't support interrupts, return early if index is set to + * VIRTIO_CONFIG_IRQ_IDX. + */ + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } + vhost_virtqueue_mask(&i2c->vhost_dev, vdev, idx, mask); } @@ -135,6 +143,14 @@ static bool vu_i2c_guest_notifier_pending(VirtIODevice *vdev, int idx) { VHostUserI2C *i2c = VHOST_USER_I2C(vdev); + /* + * We don't support interrupts, return early if index is set to + * VIRTIO_CONFIG_IRQ_IDX. + */ + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } + return vhost_virtqueue_pending(&i2c->vhost_dev, idx); } |