On 15/11/2024 16:37, Daniel Wagner wrote:
Reviewed-by: Christoph Hellwig<h...@lst.de>
Reviewed-by: Hannes Reinecke<h...@suse.de>
Reviewed-by: Ming Lei<ming....@redhat.com>
Signed-off-by: Daniel Wagner<w...@kernel.org>
Reviewed-by: John Garry <john.g.ga...@oracle.com>
---
drivers/virtio/virtio.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index
b9095751e43bb7db5fc991b0cc0979d2e86f7b9b..4ca6ec84cb092eac7ddf4b86b4eacac099b480cf
100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -377,6 +377,24 @@ static void virtio_dev_remove(struct device *_d)
of_node_put(dev->dev.of_node);
}
+/**
nit: does this really need to be kerneldoc, as it is static?
+ * virtio_irq_get_affinity - get IRQ affinity mask for device
+ * @_d: ptr to dev structure
+ * @irq_vec: interrupt vector number
+ *
+ * Return the CPU affinity mask for @_d and @irq_vec.
+ */
+static const struct cpumask *virtio_irq_get_affinity(struct device *_d,
+ unsigned int irq_vec)
+{
+ struct virtio_device *dev = dev_to_virtio(_d);
+
+ if (!dev->config->get_vq_affinity)
+ return NULL;
+
+ return dev->config->get_vq_affinity(dev, irq_vec);
+}
+
static const struct bus_type virtio_bus = {
