diff options
| -rw-r--r-- | drivers/nvme/host/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index fad04282148d..0545eb97d838 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2374,6 +2374,17 @@ static struct nvme_subsystem *__nvme_find_get_subsystem(const char *subsysnqn) lockdep_assert_held(&nvme_subsystems_lock); + /* + * Fail matches for discovery subsystems. This results + * in each discovery controller bound to a unique subsystem. + * This avoids issues with validating controller values + * that can only be true when there is a single unique subsystem. + * There may be multiple and completely independent entities + * that provide discovery controllers. + */ + if (!strcmp(subsysnqn, NVME_DISC_SUBSYS_NAME)) + return NULL; + list_for_each_entry(subsys, &nvme_subsystems, entry) { if (strcmp(subsys->subnqn, subsysnqn)) continue; |