On Mon, 25 Apr 2022 16:49:34 +0200 Jann Horn wrote: > > Doesn't mean we should make it legal. We can add a warning to catch > > abuses. > > That was the idea with > https://lore.kernel.org/netdev/20220128014303.2334568-1-jannh@xxxxxxxxxx/, > but I didn't get any replies when I asked what the precise semantics > of dev_hold() are supposed to be > (https://lore.kernel.org/netdev/CAG48ez1-OyZETvrYAfaHicYW1LbrQUVp=C0EukSWqZrYMej73w@xxxxxxxxxxxxxx/), > so I don't know how to proceed... Yeah, I think after you pointed out that the netdev per cpu refcounting is fundamentally broken everybody decided to hit themselves with the obliviate spell :S