On Wed, Oct 12, 2022 at 08:27:56PM -0400, Sasha Levin wrote: > From: Nathan Huckleberry <nhuck@xxxxxxxxxx> > > [ Upstream commit b77599043f00fce9253d0f22522c5d5b521555ce ] > > The ndo_start_xmit field in net_device_ops is expected to be of type > netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev). > > The mismatched return type breaks forward edge kCFI since the underlying > function definition does not match the function hook definition. kCFI showed up in 6.1, so this is not needed in any stable branches, please drop it from all. thanks, greg k-h