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authorJens Axboe <axboe@kernel.dk>2022-03-16 05:43:25 -0600
committerJens Axboe <axboe@kernel.dk>2022-03-16 05:43:25 -0600
commitf6189589fa7cc4fb6b53f2929f69f0505123202f (patch)
treefb84d89e72fd2682b59e32817d27cdaeeb92433c
parentdaaca3522a8e67c46e39ef09c1d542e866f85f3b (diff)
parent0c48645a7f3988a624767d025fa3275ae24b6ca1 (diff)
Merge tag 'nvme-5.17-2022-03-16' of git://git.infradead.org/nvme into block-5.17
Pull NVMe fix from Christoph: "nvme fix for Linux 5.17 - last minute revert of a nvmet feature added in Linux 5.16 (Hannes Reinecke)" * tag 'nvme-5.17-2022-03-16' of git://git.infradead.org/nvme: nvmet: revert "nvmet: make discovery NQN configurable"
-rw-r--r--drivers/nvme/target/configfs.c39
-rw-r--r--drivers/nvme/target/core.c3
2 files changed, 1 insertions, 41 deletions
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index 091a0ca16361..496d775c6770 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1233,44 +1233,6 @@ static ssize_t nvmet_subsys_attr_model_store(struct config_item *item,
}
CONFIGFS_ATTR(nvmet_subsys_, attr_model);
-static ssize_t nvmet_subsys_attr_discovery_nqn_show(struct config_item *item,
- char *page)
-{
- return snprintf(page, PAGE_SIZE, "%s\n",
- nvmet_disc_subsys->subsysnqn);
-}
-
-static ssize_t nvmet_subsys_attr_discovery_nqn_store(struct config_item *item,
- const char *page, size_t count)
-{
- struct nvmet_subsys *subsys = to_subsys(item);
- char *subsysnqn;
- int len;
-
- len = strcspn(page, "\n");
- if (!len)
- return -EINVAL;
-
- subsysnqn = kmemdup_nul(page, len, GFP_KERNEL);
- if (!subsysnqn)
- return -ENOMEM;
-
- /*
- * The discovery NQN must be different from subsystem NQN.
- */
- if (!strcmp(subsysnqn, subsys->subsysnqn)) {
- kfree(subsysnqn);
- return -EBUSY;
- }
- down_write(&nvmet_config_sem);
- kfree(nvmet_disc_subsys->subsysnqn);
- nvmet_disc_subsys->subsysnqn = subsysnqn;
- up_write(&nvmet_config_sem);
-
- return count;
-}
-CONFIGFS_ATTR(nvmet_subsys_, attr_discovery_nqn);
-
#ifdef CONFIG_BLK_DEV_INTEGRITY
static ssize_t nvmet_subsys_attr_pi_enable_show(struct config_item *item,
char *page)
@@ -1300,7 +1262,6 @@ static struct configfs_attribute *nvmet_subsys_attrs[] = {
&nvmet_subsys_attr_attr_cntlid_min,
&nvmet_subsys_attr_attr_cntlid_max,
&nvmet_subsys_attr_attr_model,
- &nvmet_subsys_attr_attr_discovery_nqn,
#ifdef CONFIG_BLK_DEV_INTEGRITY
&nvmet_subsys_attr_attr_pi_enable,
#endif
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 5119c687de68..626caf6f1e4b 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -1493,8 +1493,7 @@ static struct nvmet_subsys *nvmet_find_get_subsys(struct nvmet_port *port,
if (!port)
return NULL;
- if (!strcmp(NVME_DISC_SUBSYS_NAME, subsysnqn) ||
- !strcmp(nvmet_disc_subsys->subsysnqn, subsysnqn)) {
+ if (!strcmp(NVME_DISC_SUBSYS_NAME, subsysnqn)) {
if (!kref_get_unless_zero(&nvmet_disc_subsys->ref))
return NULL;
return nvmet_disc_subsys;