From: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> Date: Tue, 2 Oct 2018 17:56:02 +0100 > - memcpy(skb->data, &tx_cmd_a, 4); > + ptr = skb_push(skb, 8); > + tx_cmd_a = cpu_to_le32(tx_cmd_a); > + tx_cmd_b = cpu_to_le32(tx_cmd_b); > + memcpy(ptr, &tx_cmd_a, 4); > + memcpy(ptr+4, &tx_cmd_b, 4); Even a memcpy() through a void pointer does not guarantee that gcc will not emit word sized loads and stores. You must use the get_unaligned()/put_unaligned() facilities to do this properly. I also agree that making a proper type and structure instead of using a void pointer would be better.
