s390/dasd: Use sysfs_emit() over sprintf()

sysfs_emit() should be used in show() functions. There are still a
couple of functions that use sprintf().
Replace outstanding occurrences of sprintf() in all show() functions
with sysfs_emit().
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20240208164248.540985-3-sth@linux.ibm.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/s390/block/dasd_devmap.c

@@ -1114,7 +1114,7 @@ dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf)
 		use_diag = (devmap->features & DASD_FEATURE_USEDIAG) != 0;
 	else
 		use_diag = (DASD_FEATURE_DEFAULT & DASD_FEATURE_USEDIAG) != 0;
-	return sprintf(buf, use_diag ? "1\n" : "0\n");
+	return sysfs_emit(buf, use_diag ? "1\n" : "0\n");
 }
 
 static ssize_t
@@ -1163,7 +1163,7 @@ dasd_use_raw_show(struct device *dev, struct device_attribute *attr, char *buf)
 		use_raw = (devmap->features & DASD_FEATURE_USERAW) != 0;
 	else
 		use_raw = (DASD_FEATURE_DEFAULT & DASD_FEATURE_USERAW) != 0;
-	return sprintf(buf, use_raw ? "1\n" : "0\n");
+	return sysfs_emit(buf, use_raw ? "1\n" : "0\n");
 }
 
 static ssize_t
@@ -1259,7 +1259,7 @@ dasd_access_show(struct device *dev, struct device_attribute *attr,
 	if (count < 0)
 		return count;
 
-	return sprintf(buf, "%d\n", count);
+	return sysfs_emit(buf, "%d\n", count);
 }
 
 static DEVICE_ATTR(host_access_count, 0444, dasd_access_show, NULL);
@@ -1338,19 +1338,19 @@ static ssize_t dasd_alias_show(struct device *dev,
 
 	device = dasd_device_from_cdev(to_ccwdev(dev));
 	if (IS_ERR(device))
-		return sprintf(buf, "0\n");
+		return sysfs_emit(buf, "0\n");
 
 	if (device->discipline && device->discipline->get_uid &&
 	    !device->discipline->get_uid(device, &uid)) {
 		if (uid.type == UA_BASE_PAV_ALIAS ||
 		    uid.type == UA_HYPER_PAV_ALIAS) {
 			dasd_put_device(device);
-			return sprintf(buf, "1\n");
+			return sysfs_emit(buf, "1\n");
 		}
 	}
 	dasd_put_device(device);
 
-	return sprintf(buf, "0\n");
+	return sysfs_emit(buf, "0\n");
 }
 
 static DEVICE_ATTR(alias, 0444, dasd_alias_show, NULL);
@@ -1856,7 +1856,7 @@ static ssize_t dasd_pm_show(struct device *dev,
 
 	device = dasd_device_from_cdev(to_ccwdev(dev));
 	if (IS_ERR(device))
-		return sprintf(buf, "0\n");
+		return sysfs_emit(buf, "0\n");
 
 	opm = dasd_path_get_opm(device);
 	nppm = dasd_path_get_nppm(device);
@@ -1866,8 +1866,8 @@ static ssize_t dasd_pm_show(struct device *dev,
 	ifccpm = dasd_path_get_ifccpm(device);
 	dasd_put_device(device);
 
-	return sprintf(buf, "%02x %02x %02x %02x %02x %02x\n", opm, nppm,
-		       cablepm, cuirpm, hpfpm, ifccpm);
+	return sysfs_emit(buf, "%02x %02x %02x %02x %02x %02x\n", opm, nppm,
+			  cablepm, cuirpm, hpfpm, ifccpm);
 }
 
 static DEVICE_ATTR(path_masks, 0444, dasd_pm_show, NULL);