Commit 14a1336e authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

nvme: warn when finding multi-port subsystems without multipathing enabled

Without CONFIG_NVME_MULTIPATH enabled a multi-port subsystem might
show up as invididual devices and cause problems, warn about it.

Signed-off-by: default avatarChristoph Hellwig <>
Reviewed-by: default avatarSagi Grimberg <>
parent 751a0cc0
......@@ -531,6 +531,9 @@ static inline void nvme_mpath_check_last_path(struct nvme_ns *ns)
static inline int nvme_mpath_init(struct nvme_ctrl *ctrl,
struct nvme_id_ctrl *id)
if (ctrl->subsys->cmic & (1 << 3))
"Please enable CONFIG_NVME_MULTIPATH for full support of multi-port devices.\n");
return 0;
static inline void nvme_mpath_uninit(struct nvme_ctrl *ctrl)
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