From 399d76d3306453200621f8b5c6fc7df28c659dcd Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 16 Nov 2023 13:14:35 +0100
Subject: [PATCH] nvme: blank out authentication fabrics options if not
 configured

[ Upstream commit c7ca9757bda35ff9ce27ab42f2cb8b84d983e6ad ]

If the config option NVME_HOST_AUTH is not selected we should not
accept the corresponding fabrics options. This allows userspace
to detect if NVMe authentication has been enabled for the kernel.

Cc: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Fixes: f50fff73d620 ("nvme: implement In-Band authentication")
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/fabrics.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 8175d49f29090..92ba315cfe19e 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -645,8 +645,10 @@ static const match_table_t opt_tokens = {
 	{ NVMF_OPT_TOS,			"tos=%d"		},
 	{ NVMF_OPT_FAIL_FAST_TMO,	"fast_io_fail_tmo=%d"	},
 	{ NVMF_OPT_DISCOVERY,		"discovery"		},
+#ifdef CONFIG_NVME_HOST_AUTH
 	{ NVMF_OPT_DHCHAP_SECRET,	"dhchap_secret=%s"	},
 	{ NVMF_OPT_DHCHAP_CTRL_SECRET,	"dhchap_ctrl_secret=%s"	},
+#endif
 	{ NVMF_OPT_ERR,			NULL			}
 };
 
-- 
2.47.3