On 20-10-21, 16:54, Jie Deng wrote: > > On 2021/10/19 16:22, Viresh Kumar wrote: > > On 19-10-21, 09:46, Vincent Whitchurch wrote: > > > static void virtio_i2c_msg_done(struct virtqueue *vq) > > > { > > > - struct virtio_i2c *vi = vq->vdev->priv; > > > + struct virtio_i2c_req *req; > > > + unsigned int len; > > > - complete(&vi->completion); > > > + while ((req = virtqueue_get_buf(vq, &len))) > > > + complete(&req->completion); > > Instead of adding a completion for each request and using only the > > last one, maybe we can do this instead here: > > > > while ((req = virtqueue_get_buf(vq, &len))) { > > if (req->out_hdr.flags == cpu_to_le32(VIRTIO_I2C_FLAGS_FAIL_NEXT)) > > > Is this for the last one check ? For the last one, this bit should be > cleared, right ? Oops, you are right. This should be `!=` instead. Thanks. -- viresh