RE: [PATCH v4 5/7] thunderbolt: Networking state machine
From: Levy, Amir (Jer) <hidden>
Date: 2016-07-27 07:31:27
Also in:
linux-pci, lkml
From: Levy, Amir (Jer) <hidden>
Date: 2016-07-27 07:31:27
Also in:
linux-pci, lkml
On Mon, Jul 25 2016, 01:36 AM, Lukas Wunner wrote:
On Mon, Jul 18, 2016 at 01:00:38PM +0300, Amir Levy wrote:quoted
+ const unique_id_be proto_uuid =APPLE_THUNDERBOLT_IP_PROTOCOL_UUID;quoted
+ + if (memcmp(proto_uuid, hdr->apple_tbt_ip_proto_uuid, + sizeof(proto_uuid)) != 0) {You may want to use the uuid_be data type provided by <linux/uuid.h> instead of rolling your own, as well as the helper uuid_be_cmp() defined ibidem.
All the messages in Thunderbolt consist BE DWORDs. I didn't find uuid definition in the kernel that accurately describes the uuid structure in the messages, which is 4 BE DWORDs. But on the other hand, all the driver does is copy/compare of uuids, and it can treat uuids as byte array (i.e. uuid_be). I'll change it in the next patches.