scsi: sd: Remove unused sd_cdb_cache

Since commit ce70fd9a551a ("scsi: core: Remove the cmd field from struct
scsi_request") sd_cdb_cache is unused. Remove it.

Link: https://lore.kernel.org/r/20230221115340.21201-1-changfengnan@bytedance.com
Signed-off-by: Fengnan Chang <changfengnan@bytedance.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 2aa3b03..a9f7e01 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -121,7 +121,6 @@ static void scsi_disk_release(struct device *cdev);
 
 static DEFINE_IDA(sd_index_ida);
 
-static struct kmem_cache *sd_cdb_cache;
 static mempool_t *sd_page_pool;
 static struct lock_class_key sd_bio_compl_lkclass;
 
@@ -3853,19 +3852,11 @@ static int __init init_sd(void)
        if (err)
                goto err_out;
 
-       sd_cdb_cache = kmem_cache_create("sd_ext_cdb", SD_EXT_CDB_SIZE,
-                                        0, 0, NULL);
-       if (!sd_cdb_cache) {
-               printk(KERN_ERR "sd: can't init extended cdb cache\n");
-               err = -ENOMEM;
-               goto err_out_class;
-       }
-
        sd_page_pool = mempool_create_page_pool(SD_MEMPOOL_SIZE, 0);
        if (!sd_page_pool) {
                printk(KERN_ERR "sd: can't init discard page pool\n");
                err = -ENOMEM;
-               goto err_out_cache;
+               goto err_out_class;
        }
 
        err = scsi_register_driver(&sd_template.gendrv);
@@ -3876,10 +3867,6 @@ static int __init init_sd(void)
 
 err_out_driver:
        mempool_destroy(sd_page_pool);
-
-err_out_cache:
-       kmem_cache_destroy(sd_cdb_cache);
-
 err_out_class:
        class_unregister(&sd_disk_class);
 err_out:
@@ -3901,7 +3888,6 @@ static void __exit exit_sd(void)
 
        scsi_unregister_driver(&sd_template.gendrv);
        mempool_destroy(sd_page_pool);
-       kmem_cache_destroy(sd_cdb_cache);
 
        class_unregister(&sd_disk_class);