On Thu, 2017-01-26 at 15:49 +0100, Johannes Berg wrote: > Unfortunately, I haven't been able to actually test this yet. I also > didn't find the code that would drop frames with CSUM 0 either, so I'm > thinking - for now - that if all the csum handling is skipped, dropping > 0 csum frames would also be, and then we'd accept a frame we should > actually have dropped. > > I'll go test this I guess :) > > Any pointers to where 0 csum frames are dropped? Probably in udp6_csum_init()