scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro

Use DEVICE_ATTR_ADMIN_RO() macro helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-4-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Zhen Lei 2021-06-16 11:44:18 +08:00 committed by Martin K. Petersen
parent 80068f8228
commit 4c92f89802

View file

@ -121,8 +121,8 @@ static irqreturn_t megaraid_isr(int, void *);
static void megaraid_mbox_dpc(unsigned long);
static ssize_t megaraid_sysfs_show_app_hndl(struct device *, struct device_attribute *attr, char *);
static ssize_t megaraid_sysfs_show_ldnum(struct device *, struct device_attribute *attr, char *);
static ssize_t megaraid_mbox_app_hndl_show(struct device *, struct device_attribute *attr, char *);
static ssize_t megaraid_mbox_ld_show(struct device *, struct device_attribute *attr, char *);
static int megaraid_cmm_register(adapter_t *);
static int megaraid_cmm_unregister(adapter_t *);
@ -302,8 +302,7 @@ static struct pci_driver megaraid_pci_driver = {
// definitions for the device attributes for exporting logical drive number
// for a scsi address (Host, Channel, Id, Lun)
static DEVICE_ATTR(megaraid_mbox_app_hndl, S_IRUSR, megaraid_sysfs_show_app_hndl,
NULL);
static DEVICE_ATTR_ADMIN_RO(megaraid_mbox_app_hndl);
// Host template initializer for megaraid mbox sysfs device attributes
static struct device_attribute *megaraid_shost_attrs[] = {
@ -312,7 +311,7 @@ static struct device_attribute *megaraid_shost_attrs[] = {
};
static DEVICE_ATTR(megaraid_mbox_ld, S_IRUSR, megaraid_sysfs_show_ldnum, NULL);
static DEVICE_ATTR_ADMIN_RO(megaraid_mbox_ld);
// Host template initializer for megaraid mbox sysfs device attributes
static struct device_attribute *megaraid_sdev_attrs[] = {
@ -3961,7 +3960,7 @@ megaraid_sysfs_get_ldmap(adapter_t *adapter)
/**
* megaraid_sysfs_show_app_hndl - display application handle for this adapter
* megaraid_mbox_app_hndl_show - display application handle for this adapter
* @dev : class device object representation for the host
* @attr : device attribute (unused)
* @buf : buffer to send data to
@ -3971,8 +3970,7 @@ megaraid_sysfs_get_ldmap(adapter_t *adapter)
* handle, since we do not interface with applications directly.
*/
static ssize_t
megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
char *buf)
megaraid_mbox_app_hndl_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(shost);
@ -3985,7 +3983,7 @@ megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
/**
* megaraid_sysfs_show_ldnum - display the logical drive number for this device
* megaraid_mbox_ld_show - display the logical drive number for this device
* @dev : device object representation for the scsi device
* @attr : device attribute to show
* @buf : buffer to send data to
@ -4000,7 +3998,7 @@ megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
* <int> <int> <int> <int>
*/
static ssize_t
megaraid_sysfs_show_ldnum(struct device *dev, struct device_attribute *attr, char *buf)
megaraid_mbox_ld_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct scsi_device *sdev = to_scsi_device(dev);
adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(sdev->host);