Hi Oliver, > this is much better. >> ... > This is problematic. ndo_stop() is not limited to disconnection. > It is also used whenever an interface transitions from up to down. >> ... > > On a general note, you are going for a belt and suspenders approach. > It seems to me that you have two options. > 1. Do as Alan suggested and ignore ENODEV. You'd be acknowledging that > these devices are hotpluggable and therefore -ENODEV is not an error > 2. Use only a flag. But if you do that, you are setting it in the wrong > place. It should be set in usbnet_disconnect() Thank you for you help, I will do what you say. I would like to try 2 first so that it only affects the unbind operation. If I find any problem, I will try 1. > O and, well, this is a very mior issue, but you've introduced a memory > ordering issue. You ought to use smp_wmb() after setting the flag and > smp_rmb() before reading it. Thank you again, I'll keep that in mind Best regards José Ignacio
