ssb: use DEVICE_ATTR_ADMIN_RW() helper macro

Use DEVICE_ATTR_ADMIN_RW() helper macro instead of DEVICE_ATTR(), making
it simpler and easier to read.

Because the read and write function names of the sysfs attribute have been
normalized, there is a natural association.

Signed-off-by: Zhen Lei <[e-mail]>
Signed-off-by: Kalle Valo <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/ssb/pci.c

···
 #endif
 };
 
-static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
-				       struct device_attribute *attr,
-				       char *buf)
+static ssize_t ssb_sprom_show(struct device *pcidev,
+			      struct device_attribute *attr,
+			      char *buf)
 {
 	struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
 	struct ssb_bus *bus;
···
 	return ssb_attr_sprom_show(bus, buf, sprom_do_read);
 }
 
-static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
+static ssize_t ssb_sprom_store(struct device *pcidev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
 {
 	struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
 	struct ssb_bus *bus;
···
 				    sprom_check_crc, sprom_do_write);
 }
 
-static DEVICE_ATTR(ssb_sprom, 0600,
-		   ssb_pci_attr_sprom_show,
-		   ssb_pci_attr_sprom_store);
+static DEVICE_ATTR_ADMIN_RW(ssb_sprom);
 
 void ssb_pci_exit(struct ssb_bus *bus)
 {

drivers/ssb/pcmcia.c

···
 	return -ENODEV;
 }
 
-static ssize_t ssb_pcmcia_attr_sprom_show(struct device *pcmciadev,
-					  struct device_attribute *attr,
-					  char *buf)
+static ssize_t ssb_sprom_show(struct device *pcmciadev,
+			      struct device_attribute *attr,
+			      char *buf)
 {
 	struct pcmcia_device *pdev =
 		container_of(pcmciadev, struct pcmcia_device, dev);
···
 				   ssb_pcmcia_sprom_read_all);
 }
 
-static ssize_t ssb_pcmcia_attr_sprom_store(struct device *pcmciadev,
-					   struct device_attribute *attr,
-					   const char *buf, size_t count)
+static ssize_t ssb_sprom_store(struct device *pcmciadev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
 {
 	struct pcmcia_device *pdev =
 		container_of(pcmciadev, struct pcmcia_device, dev);
···
 				    ssb_pcmcia_sprom_write_all);
 }
 
-static DEVICE_ATTR(ssb_sprom, 0600,
-		   ssb_pcmcia_attr_sprom_show,
-		   ssb_pcmcia_attr_sprom_store);
+static DEVICE_ATTR_ADMIN_RW(ssb_sprom);
 
 static int ssb_pcmcia_cor_setup(struct ssb_bus *bus, u8 cor)
 {