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scsi: zfcp: auto variables for dereferenced structs in open port handler 

Introduce automatic variables for adapter and QTCB bottom in
zfcp_fsf_open_port_handler(). This facilitates subsequent changes to meet
the 80 character per line limit.

Link: https://lore.kernel.org/r/20200312174505.51294-6-maier@linux.ibm.com
Reviewed-by: Fedor Loshakov <loshakov@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jens Remus 2020-03-12 18:45:00 +01:00 коммит произвёл Martin K. Petersen
Родитель 7e0e4e0958
Коммит 185f2d2d59
1 изменённых файлов: 7 добавлений и 6 удалений
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13
drivers/s390/scsi/zfcp_fsf.c
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@ -4,7 +4,7 @@
*
* Implementation of FSF commands.
*
* Copyright IBM Corp. 2002, 2018
* Copyright IBM Corp. 2002, 2020
*/
#define KMSG_COMPONENT "zfcp"
@ -1499,8 +1499,10 @@ out_unlock:
static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_port *port = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
struct fc_els_flogi *plogi;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
@ -1510,7 +1512,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
case FSF_PORT_ALREADY_OPEN:
break;
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
dev_warn(&req->adapter->ccw_device->dev,
dev_warn(&adapter->ccw_device->dev,
"Not enough FCP adapter resources to open "
"remote port 0x%016Lx\n",
(unsigned long long)port->wwpn);
@ -1550,10 +1552,9 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
* another GID_PN straight after a port has been opened.
* Alternately, an ADISC/PDISC ELS should suffice, as well.
*/
plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els;
if (req->qtcb->bottom.support.els1_length >=
FSF_PLOGI_MIN_LEN)
zfcp_fc_plogi_evaluate(port, plogi);
plogi = (struct fc_els_flogi *) bottom->els;
if (bottom->els1_length >= FSF_PLOGI_MIN_LEN)
zfcp_fc_plogi_evaluate(port, plogi);
break;
case FSF_UNKNOWN_OP_SUBTYPE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;