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[1/6] zfcp: remove unneeded INIT_LIST_HEAD() for FSF requests

Message ID 254dc0ae28dccc43ab0b1079ef2c8dcb5fe1d2e4.1618417667.git.bblock@linux.ibm.com
State New
Headers show
Series zfcp: cleanups and qdio code refactor for 5.13/5.14 | expand

Commit Message

Benjamin Block April 14, 2021, 5:07 p.m. UTC 
From: Julian Wiedmann <jwi@linux.ibm.com>

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.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
---
 drivers/s390/scsi/zfcp_fsf.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 485028324eae..2e4804ef2fb9 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -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);