[PATCH v2 4/4] scsi: mvsas: use DEVICE_ATTR_RO/RW macro

[Zhen Lei <thunder.leizhen@xxxxxxxxxx>]

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

Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
---
 drivers/scsi/mvsas/mv_init.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 6aa2697c4a15d24..53137f7d0e993da 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -692,22 +692,17 @@ 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;
@@ -745,16 +740,13 @@ 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)
 {
-- 
2.26.0.106.g9fadedd