diff options
| author | Swen Schillig <swen@vnet.ibm.com> | 2008-10-01 12:42:19 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-10-03 12:11:53 -0500 |
| commit | a1b449de5d35b9eec8981c6ea999eea263b19a0b (patch) | |
| tree | 7503d041e1439e08cefc729c28e656e48843966e /drivers/s390 | |
| parent | 7ba58c9cc16d296290fe645acb11db2b01276544 (diff) | |
| download | linux-a1b449de5d35b9eec8981c6ea999eea263b19a0b.tar.bz2 | |
[SCSI] zfcp: Simplify get_adapter_by_busid
Call the helper function from cio instead looping through all zfcp
adapters.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 13 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_ccw.c | 17 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_ext.h | 1 |
3 files changed, 18 insertions, 13 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 811ce8a28250..6397de01b85e 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -106,19 +106,6 @@ static int __init zfcp_device_setup(char *devstr) return 0; } -static struct zfcp_adapter *zfcp_get_adapter_by_busid(char *bus_id) -{ - struct zfcp_adapter *adapter; - - list_for_each_entry(adapter, &zfcp_data.adapter_list_head, list) - if ((strncmp(bus_id, adapter->ccw_device->dev.bus_id, - BUS_ID_SIZE) == 0) && - !(atomic_read(&adapter->status) & - ZFCP_STATUS_COMMON_REMOVE)) - return adapter; - return NULL; -} - static void __init zfcp_init_device_configure(void) { struct zfcp_adapter *adapter; diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 0e1a42f7a4b5..3a9bd5451a49 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -224,3 +224,20 @@ int __init zfcp_ccw_register(void) { return ccw_driver_register(&zfcp_ccw_driver); } + +/** + * zfcp_get_adapter_by_busid - find zfcp_adapter struct + * @busid: bus id string of zfcp adapter to find + */ +struct zfcp_adapter *zfcp_get_adapter_by_busid(char *busid) +{ + struct ccw_device *ccw_device; + struct zfcp_adapter *adapter = NULL; + + ccw_device = get_ccwdev_by_busid(&zfcp_ccw_driver, busid); + if (ccw_device) { + adapter = dev_get_drvdata(&ccw_device->dev); + put_device(&ccw_device->dev); + } + return adapter; +} diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index ca1db974fc5c..b8c5c37b2afa 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -27,6 +27,7 @@ extern int zfcp_sg_setup_table(struct scatterlist *, int); /* zfcp_ccw.c */ extern int zfcp_ccw_register(void); +extern struct zfcp_adapter *zfcp_get_adapter_by_busid(char *); /* zfcp_cfdc.c */ extern struct miscdevice zfcp_cfdc_misc; |