On 22-03-21, 15:53, Jie Deng wrote:
> On 2021/3/22 14:41, Viresh Kumar wrote:
> I think your optimization has problems...
> 
> 
> >     bool err_found = timeout;
> > 
> >     for (i = 0; i < nr; i++) {
> >             /* Detach the ith request from the vq */
> >             req = virtqueue_get_buf(vq, &len);
> > 
> >             /*
> >              * Condition (req && req == &reqs[i]) should always meet since
> >              * we have total nr requests in the vq.
> >              */
> >             if (!err_found &&
> >                      (WARN_ON(!(req && req == &reqs[i])) ||
> >                  (req->in_hdr.status != VIRTIO_I2C_MSG_OK))) {
> >                     err_found = true;
> >                     continue;
> 
> 
> Just continue here, the ith buf leaks ?

Ahh, this needs to be dropped. You are fight.
 
> >             }
> > 
> >             i2c_put_dma_safe_msg_buf(reqs[i].buf, &msgs[i], err_found);
> 
> 
> i2c_put_dma_safe_msg_buf(reqs[i].buf, &msgs[i], !err_found); ?

Yes again, my mistake :)

-- 
viresh

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