From: Igor Russkikh <Igor.Russkikh@xxxxxxxxxxxx> Date: Wed, 21 Nov 2018 10:13:37 +0000 > + if (padding_size != 0) > + skb_put(skb, padding_size); I think you want to use skb_put_zero() here rather than leaving it uninitialized. I know it's padding, but if for some reason this leaks onto the wire or elsewhere we'll regret not initializing this buffer. > + /* Copy TX header */ > + skb_push(skb, sizeof(tx_desc)); > + cpu_to_le64s(&tx_desc); > + skb_copy_to_linear_data(skb, &tx_desc, sizeof(tx_desc)); I seriously wonder if, with all of the invariants wrt. length modulus and padding, that you can safely just go: __le64 *p; p = skb_push(skb, sizeof(tx_desc)); *p = cpu_to_le64(tx_desc); or something like that.