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path: root/drivers/scsi/scsi_transport_iscsi.c
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Diffstat (limited to 'drivers/scsi/scsi_transport_iscsi.c')
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c72
1 files changed, 25 insertions, 47 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 3075b2ddf7a6..c75a806496d6 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1201,10 +1201,10 @@ static const struct device_type iscsi_flashnode_conn_dev_type = {
.release = iscsi_flashnode_conn_release,
};
-static struct bus_type iscsi_flashnode_bus;
+static const struct bus_type iscsi_flashnode_bus;
int iscsi_flashnode_bus_match(struct device *dev,
- struct device_driver *drv)
+ const struct device_driver *drv)
{
if (dev->bus == &iscsi_flashnode_bus)
return 1;
@@ -1212,7 +1212,7 @@ int iscsi_flashnode_bus_match(struct device *dev,
}
EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match);
-static struct bus_type iscsi_flashnode_bus = {
+static const struct bus_type iscsi_flashnode_bus = {
.name = "iscsi_flashnode",
.match = &iscsi_flashnode_bus_match,
};
@@ -1324,7 +1324,7 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn);
* 1 on success
* 0 on failure
*/
-static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data)
+static int iscsi_is_flashnode_conn_dev(struct device *dev, const void *data)
{
return dev->bus == &iscsi_flashnode_bus;
}
@@ -1335,7 +1335,7 @@ static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn)
return 0;
}
-static int flashnode_match_index(struct device *dev, void *data)
+static int flashnode_match_index(struct device *dev, const void *data)
{
struct iscsi_bus_flash_session *fnode_sess = NULL;
int ret = 0;
@@ -1344,7 +1344,7 @@ static int flashnode_match_index(struct device *dev, void *data)
goto exit_match_index;
fnode_sess = iscsi_dev_to_flash_session(dev);
- ret = (fnode_sess->target_id == *((int *)data)) ? 1 : 0;
+ ret = (fnode_sess->target_id == *((const int *)data)) ? 1 : 0;
exit_match_index:
return ret;
@@ -1389,8 +1389,8 @@ iscsi_get_flashnode_by_index(struct Scsi_Host *shost, uint32_t idx)
* %NULL on failure
*/
struct device *
-iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
- int (*fn)(struct device *dev, void *data))
+iscsi_find_flashnode_sess(struct Scsi_Host *shost, const void *data,
+ device_match_t fn)
{
return device_find_child(&shost->shost_gendev, data, fn);
}
@@ -1535,6 +1535,7 @@ iscsi_bsg_host_add(struct Scsi_Host *shost, struct iscsi_cls_host *ihost)
{
struct device *dev = &shost->shost_gendev;
struct iscsi_internal *i = to_iscsi_internal(shost->transportt);
+ struct queue_limits lim;
struct request_queue *q;
char bsg_name[20];
@@ -1542,13 +1543,14 @@ iscsi_bsg_host_add(struct Scsi_Host *shost, struct iscsi_cls_host *ihost)
return -ENOTSUPP;
snprintf(bsg_name, sizeof(bsg_name), "iscsi_host%d", shost->host_no);
- q = bsg_setup_queue(dev, bsg_name, iscsi_bsg_host_dispatch, NULL, 0);
+ scsi_init_limits(shost, &lim);
+ q = bsg_setup_queue(dev, bsg_name, &lim, iscsi_bsg_host_dispatch, NULL,
+ 0);
if (IS_ERR(q)) {
shost_printk(KERN_ERR, shost, "bsg interface failed to "
"initialize - no request queue\n");
return PTR_ERR(q);
}
- __scsi_init_queue(shost, q);
ihost->bsg_q = q;
return 0;
@@ -1603,7 +1605,6 @@ static DEFINE_MUTEX(rx_queue_mutex);
static LIST_HEAD(sesslist);
static DEFINE_SPINLOCK(sesslock);
static LIST_HEAD(connlist);
-static LIST_HEAD(connlist_err);
static DEFINE_SPINLOCK(connlock);
static uint32_t iscsi_conn_get_sid(struct iscsi_cls_conn *conn)
@@ -2121,33 +2122,6 @@ destroy_wq:
}
EXPORT_SYMBOL_GPL(iscsi_add_session);
-/**
- * iscsi_create_session - create iscsi class session
- * @shost: scsi host
- * @transport: iscsi transport
- * @dd_size: private driver data size
- * @target_id: which target
- *
- * This can be called from a LLD or iscsi_transport.
- */
-struct iscsi_cls_session *
-iscsi_create_session(struct Scsi_Host *shost, struct iscsi_transport *transport,
- int dd_size, unsigned int target_id)
-{
- struct iscsi_cls_session *session;
-
- session = iscsi_alloc_session(shost, transport, dd_size);
- if (!session)
- return NULL;
-
- if (iscsi_add_session(session, target_id)) {
- iscsi_free_session(session);
- return NULL;
- }
- return session;
-}
-EXPORT_SYMBOL_GPL(iscsi_create_session);
-
static void iscsi_conn_release(struct device *dev)
{
struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev);
@@ -3208,11 +3182,14 @@ iscsi_set_host_param(struct iscsi_transport *transport,
}
/* see similar check in iscsi_if_set_param() */
- if (strlen(data) > ev->u.set_host_param.len)
- return -EINVAL;
+ if (strlen(data) > ev->u.set_host_param.len) {
+ err = -EINVAL;
+ goto out;
+ }
err = transport->set_host_param(shost, ev->u.set_host_param.param,
data, ev->u.set_host_param.len);
+out:
scsi_host_put(shost);
return err;
}
@@ -3522,7 +3499,7 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.new_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_new_fnode;
}
index = transport->new_flashnode(shost, data, len);
@@ -3532,7 +3509,6 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport,
else
err = -EIO;
-put_host:
scsi_host_put(shost);
exit_new_fnode:
@@ -3557,7 +3533,7 @@ static int iscsi_del_flashnode(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.del_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_del_fnode;
}
idx = ev->u.del_flashnode.flashnode_idx;
@@ -3599,7 +3575,7 @@ static int iscsi_login_flashnode(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.login_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_login_fnode;
}
idx = ev->u.login_flashnode.flashnode_idx;
@@ -3651,7 +3627,7 @@ static int iscsi_logout_flashnode(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.logout_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_logout_fnode;
}
idx = ev->u.logout_flashnode.flashnode_idx;
@@ -3701,7 +3677,7 @@ static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.logout_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_logout_sid;
}
session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid);
@@ -4103,7 +4079,7 @@ iscsi_if_rx(struct sk_buff *skb)
}
do {
/*
- * special case for GET_STATS:
+ * special case for GET_STATS, GET_CHAP and GET_HOST_STATS:
* on success - sending reply and stats from
* inside of if_recv_msg(),
* on error - fall through.
@@ -4112,6 +4088,8 @@ iscsi_if_rx(struct sk_buff *skb)
break;
if (ev->type == ISCSI_UEVENT_GET_CHAP && !err)
break;
+ if (ev->type == ISCSI_UEVENT_GET_HOST_STATS && !err)
+ break;
err = iscsi_if_send_reply(portid, nlh->nlmsg_type,
ev, sizeof(*ev));
if (err == -EAGAIN && --retries < 0) {
generated by cgit (git 2.34.1) at 2025-07-25 16:52:25 +0000