scsi: zfcp: Remove unneeded INIT_LIST_HEAD() for FSF requests
authorJulian Wiedmann <jwi@linux.ibm.com>
Wed, 14 Apr 2021 17:07:59 +0000 (19:07 +0200)
committerMartin K. Petersen <martin.petersen@oracle.com>
Fri, 16 Apr 2021 02:19:39 +0000 (22:19 -0400)
INIT_LIST_HEAD() is only needed for actual list heads, while req->list is
used as a list entry.

Note that when the error path in zfcp_fsf_req_send() removes the request
from the adapter's list of pending requests, it actually looks up the
request from the zfcp_reqlist - rather than just calling list_del().  So
there's no risk of us calling list_del() on a request that hasn't been
added to any list yet.

Link: https://lore.kernel.org/r/254dc0ae28dccc43ab0b1079ef2c8dcb5fe1d2e4.1618417667.git.bblock@linux.ibm.com
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/s390/scsi/zfcp_fsf.c

index 4850283..2e4804e 100644 (file)
@@ -846,7 +846,6 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio,
        if (adapter->req_no == 0)
                adapter->req_no++;
 
-       INIT_LIST_HEAD(&req->list);
        timer_setup(&req->timer, NULL, 0);
        init_completion(&req->completion);