treewide: Use DEVICE_ATTR_RO

Convert DEVICE_ATTR uses to DEVICE_ATTR_RO where possible.

Done with perl script:

$ git grep -w --name-only DEVICE_ATTR | \
  xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IRUGO\s*|\s*0444\s*)\)?\s*,\s*\1_show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(\1)/g; print;}'
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/arm/mach-pxa/sharpsl_pm.c

@@ -802,8 +802,8 @@ static ssize_t battery_voltage_show(struct device *dev, struct device_attribute
 	return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_voltage);
 }
 
-static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL);
-static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL);
+static DEVICE_ATTR_RO(battery_percentage);
+static DEVICE_ATTR_RO(battery_voltage);
 
 extern void (*apm_get_power_status)(struct apm_power_info *);
 

arch/sh/drivers/push-switch.c

@@ -24,7 +24,7 @@ static ssize_t switch_show(struct device *dev,
 	struct push_switch_platform_info *psw_info = dev->platform_data;
 	return sprintf(buf, "%s\n", psw_info->name);
 }
-static DEVICE_ATTR(switch, S_IRUGO, switch_show, NULL);
+static DEVICE_ATTR_RO(switch);
 
 static void switch_timer(struct timer_list *t)
 {

arch/tile/kernel/sysfs.c

@@ -38,7 +38,7 @@ static ssize_t chip_width_show(struct device *dev,
 {
 	return sprintf(page, "%u\n", smp_width);
 }
-static DEVICE_ATTR(chip_width, 0444, chip_width_show, NULL);
+static DEVICE_ATTR_RO(chip_width);
 
 static ssize_t chip_height_show(struct device *dev,
 				struct device_attribute *attr,
@@ -46,7 +46,7 @@ static ssize_t chip_height_show(struct device *dev,
 {
 	return sprintf(page, "%u\n", smp_height);
 }
-static DEVICE_ATTR(chip_height, 0444, chip_height_show, NULL);
+static DEVICE_ATTR_RO(chip_height);
 
 static ssize_t chip_serial_show(struct device *dev,
 				struct device_attribute *attr,
@@ -54,7 +54,7 @@ static ssize_t chip_serial_show(struct device *dev,
 {
 	return get_hv_confstr(page, HV_CONFSTR_CHIP_SERIAL_NUM);
 }
-static DEVICE_ATTR(chip_serial, 0444, chip_serial_show, NULL);
+static DEVICE_ATTR_RO(chip_serial);
 
 static ssize_t chip_revision_show(struct device *dev,
 				  struct device_attribute *attr,
@@ -62,7 +62,7 @@ static ssize_t chip_revision_show(struct device *dev,
 {
 	return get_hv_confstr(page, HV_CONFSTR_CHIP_REV);
 }
-static DEVICE_ATTR(chip_revision, 0444, chip_revision_show, NULL);
+static DEVICE_ATTR_RO(chip_revision);
 
 
 static ssize_t type_show(struct device *dev,
@@ -71,7 +71,7 @@ static ssize_t type_show(struct device *dev,
 {
 	return sprintf(page, "tilera\n");
 }
-static DEVICE_ATTR(type, 0444, type_show, NULL);
+static DEVICE_ATTR_RO(type);
 
 #define HV_CONF_ATTR(name, conf)					\
 	static ssize_t name ## _show(struct device *dev,		\

drivers/acpi/device_sysfs.c

@@ -357,7 +357,7 @@ static ssize_t real_power_state_show(struct device *dev,
 	return sprintf(buf, "%s\n", acpi_power_state_string(state));
 }
 
-static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL);
+static DEVICE_ATTR_RO(real_power_state);
 
 static ssize_t power_state_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
@@ -367,7 +367,7 @@ static ssize_t power_state_show(struct device *dev,
 	return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state));
 }
 
-static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
+static DEVICE_ATTR_RO(power_state);
 
 static ssize_t
 acpi_eject_store(struct device *d, struct device_attribute *attr,
@@ -462,7 +462,7 @@ static ssize_t description_show(struct device *dev,
 
 	return result;
 }
-static DEVICE_ATTR(description, 0444, description_show, NULL);
+static DEVICE_ATTR_RO(description);
 
 static ssize_t
 acpi_device_sun_show(struct device *dev, struct device_attribute *attr,

drivers/char/ipmi/ipmi_msghandler.c

@@ -2588,7 +2588,7 @@ static ssize_t device_id_show(struct device *dev,
 
 	return snprintf(buf, 10, "%u\n", id.device_id);
 }
-static DEVICE_ATTR(device_id, S_IRUGO, device_id_show, NULL);
+static DEVICE_ATTR_RO(device_id);
 
 static ssize_t provides_device_sdrs_show(struct device *dev,
 					 struct device_attribute *attr,
@@ -2604,8 +2604,7 @@ static ssize_t provides_device_sdrs_show(struct device *dev,
 
 	return snprintf(buf, 10, "%u\n", (id.device_revision & 0x80) >> 7);
 }
-static DEVICE_ATTR(provides_device_sdrs, S_IRUGO, provides_device_sdrs_show,
-		   NULL);
+static DEVICE_ATTR_RO(provides_device_sdrs);
 
 static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
@@ -2620,7 +2619,7 @@ static ssize_t revision_show(struct device *dev, struct device_attribute *attr,
 
 	return snprintf(buf, 20, "%u\n", id.device_revision & 0x0F);
 }
-static DEVICE_ATTR(revision, S_IRUGO, revision_show, NULL);
+static DEVICE_ATTR_RO(revision);
 
 static ssize_t firmware_revision_show(struct device *dev,
 				      struct device_attribute *attr,
@@ -2637,7 +2636,7 @@ static ssize_t firmware_revision_show(struct device *dev,
 	return snprintf(buf, 20, "%u.%x\n", id.firmware_revision_1,
 			id.firmware_revision_2);
 }
-static DEVICE_ATTR(firmware_revision, S_IRUGO, firmware_revision_show, NULL);
+static DEVICE_ATTR_RO(firmware_revision);
 
 static ssize_t ipmi_version_show(struct device *dev,
 				 struct device_attribute *attr,
@@ -2655,7 +2654,7 @@ static ssize_t ipmi_version_show(struct device *dev,
 			ipmi_version_major(&id),
 			ipmi_version_minor(&id));
 }
-static DEVICE_ATTR(ipmi_version, S_IRUGO, ipmi_version_show, NULL);
+static DEVICE_ATTR_RO(ipmi_version);
 
 static ssize_t add_dev_support_show(struct device *dev,
 				    struct device_attribute *attr,
@@ -2688,7 +2687,7 @@ static ssize_t manufacturer_id_show(struct device *dev,
 
 	return snprintf(buf, 20, "0x%6.6x\n", id.manufacturer_id);
 }
-static DEVICE_ATTR(manufacturer_id, S_IRUGO, manufacturer_id_show, NULL);
+static DEVICE_ATTR_RO(manufacturer_id);
 
 static ssize_t product_id_show(struct device *dev,
 			       struct device_attribute *attr,
@@ -2704,7 +2703,7 @@ static ssize_t product_id_show(struct device *dev,
 
 	return snprintf(buf, 10, "0x%4.4x\n", id.product_id);
 }
-static DEVICE_ATTR(product_id, S_IRUGO, product_id_show, NULL);
+static DEVICE_ATTR_RO(product_id);
 
 static ssize_t aux_firmware_rev_show(struct device *dev,
 				     struct device_attribute *attr,
@@ -2742,7 +2741,7 @@ static ssize_t guid_show(struct device *dev, struct device_attribute *attr,
 
 	return snprintf(buf, 38, "%pUl\n", guid.b);
 }
-static DEVICE_ATTR(guid, S_IRUGO, guid_show, NULL);
+static DEVICE_ATTR_RO(guid);
 
 static struct attribute *bmc_dev_attrs[] = {
 	&dev_attr_device_id.attr,

drivers/gpu/drm/i915/i915_sysfs.c

@@ -434,13 +434,13 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
 	return ret ?: count;
 }
 
-static DEVICE_ATTR(gt_act_freq_mhz, S_IRUGO, gt_act_freq_mhz_show, NULL);
-static DEVICE_ATTR(gt_cur_freq_mhz, S_IRUGO, gt_cur_freq_mhz_show, NULL);
+static DEVICE_ATTR_RO(gt_act_freq_mhz);
+static DEVICE_ATTR_RO(gt_cur_freq_mhz);
 static DEVICE_ATTR_RW(gt_boost_freq_mhz);
 static DEVICE_ATTR_RW(gt_max_freq_mhz);
 static DEVICE_ATTR_RW(gt_min_freq_mhz);
 
-static DEVICE_ATTR(vlv_rpe_freq_mhz, S_IRUGO, vlv_rpe_freq_mhz_show, NULL);
+static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
 
 static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
 static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);

drivers/nvme/host/core.c

@@ -2471,14 +2471,14 @@ static ssize_t wwid_show(struct device *dev, struct device_attribute *attr,
 		serial_len, subsys->serial, model_len, subsys->model,
 		head->ns_id);
 }
-static DEVICE_ATTR(wwid, S_IRUGO, wwid_show, NULL);
+static DEVICE_ATTR_RO(wwid);
 
 static ssize_t nguid_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	return sprintf(buf, "%pU\n", dev_to_ns_head(dev)->ids.nguid);
 }
-static DEVICE_ATTR(nguid, S_IRUGO, nguid_show, NULL);
+static DEVICE_ATTR_RO(nguid);
 
 static ssize_t uuid_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
@@ -2495,21 +2495,21 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *attr,
 	}
 	return sprintf(buf, "%pU\n", &ids->uuid);
 }
-static DEVICE_ATTR(uuid, S_IRUGO, uuid_show, NULL);
+static DEVICE_ATTR_RO(uuid);
 
 static ssize_t eui_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	return sprintf(buf, "%8ph\n", dev_to_ns_head(dev)->ids.eui64);
 }
-static DEVICE_ATTR(eui, S_IRUGO, eui_show, NULL);
+static DEVICE_ATTR_RO(eui);
 
 static ssize_t nsid_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	return sprintf(buf, "%d\n", dev_to_ns_head(dev)->ns_id);
 }
-static DEVICE_ATTR(nsid, S_IRUGO, nsid_show, NULL);
+static DEVICE_ATTR_RO(nsid);
 
 static struct attribute *nvme_ns_id_attrs[] = {
 	&dev_attr_wwid.attr,

drivers/s390/cio/css.c

@@ -268,7 +268,7 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "%01x\n", sch->st);
 }
 
-static DEVICE_ATTR(type, 0444, type_show, NULL);
+static DEVICE_ATTR_RO(type);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
@@ -278,7 +278,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "css:t%01X\n", sch->st);
 }
 
-static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
+static DEVICE_ATTR_RO(modalias);
 
 static struct attribute *subch_attrs[] = {
 	&dev_attr_type.attr,
@@ -315,7 +315,7 @@ static ssize_t chpids_show(struct device *dev,
 	ret += sprintf(buf + ret, "\n");
 	return ret;
 }
-static DEVICE_ATTR(chpids, 0444, chpids_show, NULL);
+static DEVICE_ATTR_RO(chpids);
 
 static ssize_t pimpampom_show(struct device *dev,
 			      struct device_attribute *attr,
@@ -327,7 +327,7 @@ static ssize_t pimpampom_show(struct device *dev,
 	return sprintf(buf, "%02x %02x %02x\n",
 		       pmcw->pim, pmcw->pam, pmcw->pom);
 }
-static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
+static DEVICE_ATTR_RO(pimpampom);
 
 static struct attribute *io_subchannel_type_attrs[] = {
 	&dev_attr_chpids.attr,

drivers/s390/cio/device.c

@@ -597,13 +597,13 @@ static ssize_t vpm_show(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "%02x\n", sch->vpm);
 }
 
-static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
-static DEVICE_ATTR(cutype, 0444, cutype_show, NULL);
-static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
+static DEVICE_ATTR_RO(devtype);
+static DEVICE_ATTR_RO(cutype);
+static DEVICE_ATTR_RO(modalias);
 static DEVICE_ATTR_RW(online);
 static DEVICE_ATTR(availability, 0444, available_show, NULL);
 static DEVICE_ATTR(logging, 0200, NULL, initiate_logging);
-static DEVICE_ATTR(vpm, 0444, vpm_show, NULL);
+static DEVICE_ATTR_RO(vpm);
 
 static struct attribute *io_subchannel_attrs[] = {
 	&dev_attr_logging.attr,

drivers/s390/crypto/ap_card.c

@@ -57,7 +57,7 @@ static ssize_t ap_functions_show(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "0x%08X\n", ac->functions);
 }
 
-static DEVICE_ATTR(ap_functions, 0444, ap_functions_show, NULL);
+static DEVICE_ATTR_RO(ap_functions);
 
 static ssize_t ap_req_count_show(struct device *dev,
 				 struct device_attribute *attr,

drivers/scsi/hpsa.c

@@ -901,14 +901,14 @@ static ssize_t host_show_legacy_board(struct device *dev,
 	return snprintf(buf, 20, "%d\n", h->legacy_board ? 1 : 0);
 }
 
-static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
-static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
-static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
+static DEVICE_ATTR_RO(raid_level);
+static DEVICE_ATTR_RO(lunid);
+static DEVICE_ATTR_RO(unique_id);
 static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
-static DEVICE_ATTR(sas_address, S_IRUGO, sas_address_show, NULL);
+static DEVICE_ATTR_RO(sas_address);
 static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
 			host_show_hp_ssd_smart_path_enabled, NULL);
-static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);
+static DEVICE_ATTR_RO(path_info);
 static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH,
 		host_show_hp_ssd_smart_path_status,
 		host_store_hp_ssd_smart_path_status);

drivers/scsi/lpfc/lpfc_attr.c

@@ -2260,8 +2260,8 @@ static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
 		   lpfc_num_discovered_ports_show, NULL);
 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
-static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
-static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
+static DEVICE_ATTR_RO(lpfc_drvr_version);
+static DEVICE_ATTR_RO(lpfc_enable_fip);
 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 		   lpfc_board_mode_show, lpfc_board_mode_store);
 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
@@ -2272,12 +2272,11 @@ static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
-static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
-static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
-static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
-static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
-static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
-		   lpfc_sriov_hw_max_virtfn_show, NULL);
+static DEVICE_ATTR_RO(lpfc_temp_sensor);
+static DEVICE_ATTR_RO(lpfc_fips_level);
+static DEVICE_ATTR_RO(lpfc_fips_rev);
+static DEVICE_ATTR_RO(lpfc_dss);
+static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
 		   NULL);
@@ -3684,8 +3683,7 @@ lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
 /*
  * Sysfs attribute to control the statistical data collection.
  */
-static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
-		   lpfc_static_vport_show, NULL);
+static DEVICE_ATTR_RO(lpfc_static_vport);
 
 /**
  * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file

drivers/thermal/thermal_sysfs.c

@@ -396,10 +396,10 @@ create_s32_tzp_attr(offset);
  * All the attributes created for tzp (create_s32_tzp_attr) also are always
  * present on the sysfs interface.
  */
-static DEVICE_ATTR(type, 0444, type_show, NULL);
-static DEVICE_ATTR(temp, 0444, temp_show, NULL);
+static DEVICE_ATTR_RO(type);
+static DEVICE_ATTR_RO(temp);
 static DEVICE_ATTR_RW(policy);
-static DEVICE_ATTR(available_policies, S_IRUGO, available_policies_show, NULL);
+static DEVICE_ATTR_RO(available_policies);
 static DEVICE_ATTR_RW(sustainable_power);
 
 /* These thermal zone device attributes are created based on conditions */

sound/soc/soc-core.c

@@ -173,7 +173,7 @@ static ssize_t codec_reg_show(struct device *dev,
 	return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
 }
 
-static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
+static DEVICE_ATTR_RO(codec_reg);
 
 static ssize_t pmdown_time_show(struct device *dev,
 				struct device_attribute *attr, char *buf)

sound/soc/soc-dapm.c

@@ -2364,7 +2364,7 @@ static ssize_t dapm_widget_show(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
+static DEVICE_ATTR_RO(dapm_widget);
 
 struct attribute *soc_dapm_dev_attrs[] = {
 	&dev_attr_dapm_widget.attr,