linux-kernel - [PATCH 3/4] nvme: update the multipath warning in nvme_init_ns

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Message-ID: <20250228032541.369804-4-jmeneghi@redhat.com>
Date: Thu, 27 Feb 2025 22:25:40 -0500
From: John Meneghini <jmeneghi@...hat.com>
To: kbusch@...nel.org,
	hch@....de,
	sagi@...mberg.me
Cc: loberman@...hat.com,
	linux-nvme@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	emilne@...hat.com,
	jmeneghi@...hat.com,
	bgurney@...hat.com
Subject: [PATCH 3/4] nvme: update the multipath warning in nvme_init_ns_head

The new NVME_MULTIPATH_PARAM config option requires updates
to the warning message in nvme_init_ns_head(). Remove
the old warning message and add new ones.

Signed-off-by: John Meneghini <jmeneghi@...hat.com>
---
 drivers/nvme/host/core.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 818d4e49aab5..c2b7e6834535 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3823,8 +3823,16 @@ static int nvme_init_ns_head(struct nvme_ns *ns, struct nvme_ns_info *info)
 			dev_warn(ctrl->device,
 				"Found shared namespace %d, but multipathing not supported.\n",
 				info->nsid);
+#ifdef CONFIG_NVME_MULTIPATH
+#ifdef CONFIG_NVME_MULTIPATH_PARAM
+			dev_warn_once(ctrl->device,
+				"Shared namespace support requires core.nvme_multipath=Y.\n");
+
+#endif
+#else
 			dev_warn_once(ctrl->device,
-				"Support for shared namespaces without CONFIG_NVME_MULTIPATH is deprecated and will be removed in Linux 6.0.\n");
+				"Shared namespace support requires CONFIG_NVME_MULTIPATH.\n");
+#endif
 		}
 	}
 
-- 
2.48.1