linux-kernel - [PATCH] drivers: scsi: Directly use ida

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Date:   Fri, 27 May 2022 08:30:49 +0000
From:   keliu <liuke94@...wei.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>,
        <lduncan@...e.com>, <cleech@...hat.com>,
        <michael.christie@...cle.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <open-iscsi@...glegroups.com>
CC:     keliu <liuke94@...wei.com>
Subject: [PATCH] drivers: scsi: Directly use ida_alloc()/free()

Use ida_alloc()/ida_free() instead of deprecated
ida_simple_get()/ida_simple_remove() .

Signed-off-by: keliu <liuke94@...wei.com>
---
 drivers/scsi/hosts.c                | 4 ++--
 drivers/scsi/scsi_transport_iscsi.c | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index f69b77cbf538..ec16cfad034e 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -350,7 +350,7 @@ static void scsi_host_dev_release(struct device *dev)
 
 	kfree(shost->shost_data);
 
-	ida_simple_remove(&host_index_ida, shost->host_no);
+	ida_free(&host_index_ida, shost->host_no);
 
 	if (shost->shost_state != SHOST_CREATED)
 		put_device(parent);
@@ -395,7 +395,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	init_waitqueue_head(&shost->host_wait);
 	mutex_init(&shost->scan_mutex);
 
-	index = ida_simple_get(&host_index_ida, 0, 0, GFP_KERNEL);
+	index = ida_alloc(&host_index_ida, GFP_KERNEL);
 	if (index < 0) {
 		kfree(shost);
 		return NULL;
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 2c0dd64159b0..2578db4c095d 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1975,7 +1975,7 @@ static void __iscsi_unbind_session(struct work_struct *work)
 	scsi_remove_target(&session->dev);
 
 	if (session->ida_used)
-		ida_simple_remove(&iscsi_sess_ida, target_id);
+		ida_free(&iscsi_sess_ida, target_id);
 
 unbind_session_exit:
 	iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION);
@@ -2044,7 +2044,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
 		return -ENOMEM;
 
 	if (target_id == ISCSI_MAX_TARGET) {
-		id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
+		id = ida_alloc(&iscsi_sess_ida, GFP_KERNEL);
 
 		if (id < 0) {
 			iscsi_cls_session_printk(KERN_ERR, session,
@@ -2083,7 +2083,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
 	device_del(&session->dev);
 release_ida:
 	if (session->ida_used)
-		ida_simple_remove(&iscsi_sess_ida, session->target_id);
+		ida_free(&iscsi_sess_ida, session->target_id);
 destroy_wq:
 	destroy_workqueue(session->workq);
 	return err;
-- 
2.25.1