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| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-11-24 16:54:02 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:02:04 -0600 |
| commit | 25458eb791acf0e5e65183c5adb3918d8d71d756 (patch) | |
| tree | e634ee6be885b096c8a8840f6b6a1184d1fb341d /drivers/s390 | |
| parent | b42aeceb35c59484056b0eea81203a0911ebb50d (diff) | |
| download | linux-25458eb791acf0e5e65183c5adb3918d8d71d756.tar.gz linux-25458eb791acf0e5e65183c5adb3918d8d71d756.tar.bz2 linux-25458eb791acf0e5e65183c5adb3918d8d71d756.zip | |
[SCSI] zfcp: Access ports and units with container_of in sysfs code
When accessing port and unit attributes, use container_of instead of
dev_get_drvdata. This eliminates some code checker warnings about
aliased access of data structures.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 2 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_sysfs.c | 15 |
2 files changed, 10 insertions, 7 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index ed31bd0ff3fb..baef2ec7482f 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -319,7 +319,6 @@ struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun) kfree(unit); goto err_out; } - dev_set_drvdata(&unit->sysfs_device, unit); retval = -EINVAL; /* mark unit unusable as long as sysfs registration is not complete */ @@ -688,7 +687,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn, kfree(port); goto err_out; } - dev_set_drvdata(&port->sysfs_device, port); retval = -EINVAL; if (device_register(&port->sysfs_device)) { diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 181bea0f10fb..901cc9a6ed20 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -19,7 +19,8 @@ static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ struct device_attribute *at,\ char *buf) \ { \ - struct _feat_def *_feat = dev_get_drvdata(dev); \ + struct _feat_def *_feat = container_of(dev, struct _feat_def, \ + sysfs_device); \ \ return sprintf(buf, _format, _value); \ } \ @@ -86,7 +87,8 @@ static ssize_t zfcp_sysfs_##_feat##_failed_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct _feat_def *_feat = dev_get_drvdata(dev); \ + struct _feat_def *_feat = container_of(dev, struct _feat_def, \ + sysfs_device); \ \ if (atomic_read(&_feat->status) & ZFCP_STATUS_COMMON_ERP_FAILED) \ return sprintf(buf, "1\n"); \ @@ -97,7 +99,8 @@ static ssize_t zfcp_sysfs_##_feat##_failed_store(struct device *dev, \ struct device_attribute *attr,\ const char *buf, size_t count)\ { \ - struct _feat_def *_feat = dev_get_drvdata(dev); \ + struct _feat_def *_feat = container_of(dev, struct _feat_def, \ + sysfs_device); \ unsigned long val; \ int retval = 0; \ \ @@ -274,7 +277,8 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct zfcp_port *port = dev_get_drvdata(dev); + struct zfcp_port *port = container_of(dev, struct zfcp_port, + sysfs_device); struct zfcp_unit *unit; u64 fcp_lun; int retval = -EINVAL; @@ -305,7 +309,8 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct zfcp_port *port = dev_get_drvdata(dev); + struct zfcp_port *port = container_of(dev, struct zfcp_port, + sysfs_device); struct zfcp_unit *unit; u64 fcp_lun; int retval = 0; |