Commit 7e87965d authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Christoph Hellwig
Browse files

nvme-tcp: add nvme-tcp pdu size build protection 



Make sure that we don't somehow mess up the wire structures in the spec.

Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarChaitanya Kulkarni <kkch@nvidia.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent a3406352

drivers/nvme/host/tcp.c

+9 −0
Original line number Diff line number Diff line
@@ -2694,6 +2694,15 @@ static struct nvmf_transport_ops nvme_tcp_transport = { 


static int __init nvme_tcp_init_module(void)

{

	BUILD_BUG_ON(sizeof(struct nvme_tcp_hdr) != 8);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_cmd_pdu) != 72);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_data_pdu) != 24);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_rsp_pdu) != 24);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_r2t_pdu) != 24);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_icreq_pdu) != 128);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_icresp_pdu) != 128);

	BUILD_BUG_ON(sizeof(struct nvme_tcp_term_pdu) != 24);



	nvme_tcp_wq = alloc_workqueue("nvme_tcp_wq",

			WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);

	if (!nvme_tcp_wq)