Comment 27 for bug 1824687

From the upstream discussion thread it looks like I was on the right track (https://marc.info/?l=linux-netdev&m=155688404826002&w=2). For confirmation I am building another set of test kernel packages and once this can be confirmed will proceed to SRU this into the other series. This looks to have remained unnoticed so far, so anything after 4.18 and all the older kernels which have backported those changes would be affected.