From: Caleb Sander <csander@purestorage.com>
Date: Mon, 20 Mar 2023 15:57:36 +0000 (-0600)
Subject: nvme-tcp: fix nvme_tcp_term_pdu to match spec
X-Git-Tag: baikal/mips/sdk5.8.2~84
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=2b65b1b0c11f903ce22eb525b2d66c2939918634;p=kernel.git

nvme-tcp: fix nvme_tcp_term_pdu to match spec

[ Upstream commit aa01c67de5926fdb276793180564f172c55fb0d7 ]

The FEI field of C2HTermReq/H2CTermReq is 4 bytes but not 4-byte-aligned
in the NVMe/TCP specification (it is located at offset 10 in the PDU).
Split it into two 16-bit integers in struct nvme_tcp_term_pdu
so no padding is inserted. There should also be 10 reserved bytes after.
There are currently no users of this type.

Fixes: c44e93b83bad0196 ("nvme-tcp: Add protocol header")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Caleb Sander <csander@purestorage.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/include/linux/nvme-tcp.h b/include/linux/nvme-tcp.h
index 959e0bd9a913e..73364ae916890 100644
--- a/include/linux/nvme-tcp.h
+++ b/include/linux/nvme-tcp.h
@@ -114,8 +114,9 @@ struct nvme_tcp_icresp_pdu {
 struct nvme_tcp_term_pdu {
 	struct nvme_tcp_hdr	hdr;
 	__le16			fes;
-	__le32			fei;
-	__u8			rsvd[8];
+	__le16			feil;
+	__le16			feiu;
+	__u8			rsvd[10];
 };
 
 /**