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scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro

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

Link: https://lore.kernel.org/r/20210616034419.725-5-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 11:44:19 +08:00 committed by Martin K. Petersen
parent 4c92f89802
commit 2506f5dcb8
1 changed files with 9 additions and 17 deletions
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26
drivers/scsi/mvsas/mv_init.c
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@ -693,22 +693,17 @@ static struct pci_driver mvs_pci_driver = {
.remove = mvs_pci_remove,
};
static ssize_t
mvs_show_driver_version(struct device *cdev,
struct device_attribute *attr, char *buffer)
static ssize_t driver_version_show(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
}
static DEVICE_ATTR(driver_version,
S_IRUGO,
mvs_show_driver_version,
NULL);
static DEVICE_ATTR_RO(driver_version);
static ssize_t
mvs_store_interrupt_coalescing(struct device *cdev,
struct device_attribute *attr,
const char *buffer, size_t size)
static ssize_t interrupt_coalescing_store(struct device *cdev,
struct device_attribute *attr,
const char *buffer, size_t size)
{
unsigned int val = 0;
struct mvs_info *mvi = NULL;
@ -746,16 +741,13 @@ mvs_store_interrupt_coalescing(struct device *cdev,
return strlen(buffer);
}
static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
struct device_attribute *attr, char *buffer)
static ssize_t interrupt_coalescing_show(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
}
static DEVICE_ATTR(interrupt_coalescing,
S_IRUGO|S_IWUSR,
mvs_show_interrupt_coalescing,
mvs_store_interrupt_coalescing);
static DEVICE_ATTR_RW(interrupt_coalescing);
static int __init mvs_init(void)
{