Input: mouse - use sysfs_emit[_at]() instead of scnprintf()

Replace the calls to various *printf() functions with sysfs_emit() to
simplify the code.

Signed-off-by: ye xingchen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/mouse/cyapa.c

···
 
 	switch (pwr_cmd) {
 	case PWR_MODE_BTN_ONLY:
-		len = scnprintf(buf, PAGE_SIZE, "%s\n", BTN_ONLY_MODE_NAME);
+		len = sysfs_emit(buf, "%s\n", BTN_ONLY_MODE_NAME);
 		break;
 
 	case PWR_MODE_OFF:
-		len = scnprintf(buf, PAGE_SIZE, "%s\n", OFF_MODE_NAME);
+		len = sysfs_emit(buf, "%s\n", OFF_MODE_NAME);
 		break;
 
 	default:
-		len = scnprintf(buf, PAGE_SIZE, "%u\n",
-				cyapa->gen == CYAPA_GEN3 ?
+		len = sysfs_emit(buf, "%u\n",
+				 cyapa->gen == CYAPA_GEN3 ?
 					cyapa_pwr_cmd_to_sleep_time(pwr_cmd) :
 					sleep_time);
 		break;
···
 
 	mutex_unlock(&cyapa->state_sync_lock);
 
-	return scnprintf(buf, PAGE_SIZE, "%u\n",
-			 cyapa->gen == CYAPA_GEN3 ?
+	return sysfs_emit(buf, "%u\n",
+			  cyapa->gen == CYAPA_GEN3 ?
 				cyapa_pwr_cmd_to_sleep_time(pwr_cmd) :
 				sleep_time);
 }
···
 	error = mutex_lock_interruptible(&cyapa->state_sync_lock);
 	if (error)
 		return error;
-	error = scnprintf(buf, PAGE_SIZE, "%d.%d\n", cyapa->fw_maj_ver,
-			 cyapa->fw_min_ver);
+	error = sysfs_emit(buf, "%d.%d\n",
+			   cyapa->fw_maj_ver, cyapa->fw_min_ver);
 	mutex_unlock(&cyapa->state_sync_lock);
 	return error;
 }
···
 	error = mutex_lock_interruptible(&cyapa->state_sync_lock);
 	if (error)
 		return error;
-	size = scnprintf(buf, PAGE_SIZE, "%s\n", cyapa->product_id);
+	size = sysfs_emit(buf, "%s\n", cyapa->product_id);
 	mutex_unlock(&cyapa->state_sync_lock);
 	return size;
 }
···
 	if (error)
 		return error;
 
-	size = scnprintf(buf, PAGE_SIZE, "gen%d %s\n",
-			cyapa->gen, cyapa_state_to_string(cyapa));
+	size = sysfs_emit(buf, "gen%d %s\n",
+			  cyapa->gen, cyapa_state_to_string(cyapa));
 
 	mutex_unlock(&cyapa->state_sync_lock);
 	return size;

drivers/input/mouse/cyapa_gen3.c

···
 
 	dev_dbg(dev, "Baseline report successful. Max: %d Min: %d\n",
 		max_baseline, min_baseline);
-	ret = scnprintf(buf, PAGE_SIZE, "%d %d\n", max_baseline, min_baseline);
+	ret = sysfs_emit(buf, "%d %d\n", max_baseline, min_baseline);
 
 out:
 	return ret;

drivers/input/mouse/cyapa_gen5.c

···
 		return resume_error ? resume_error : error;
 
 	/* 12. Output data strings */
-	size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d %d %d %d %d %d ",
+	size = sysfs_emit(buf, "%d %d %d %d %d %d %d %d %d %d %d ",
 		gidac_mutual_min, gidac_mutual_max, gidac_mutual_ave,
 		lidac_mutual_min, lidac_mutual_max, lidac_mutual_ave,
 		gidac_self_rx, gidac_self_tx,
 		lidac_self_min, lidac_self_max, lidac_self_ave);
-	size += scnprintf(buf + size, PAGE_SIZE - size,
+	size += sysfs_emit_at(buf, size,
 		"%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n",
 		raw_cap_mutual_min, raw_cap_mutual_max, raw_cap_mutual_ave,
 		raw_cap_self_min, raw_cap_self_max, raw_cap_self_ave,

drivers/input/mouse/cyapa_gen6.c

···
 	if (error)
 		goto resume_scanning;
 
-	size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d ",
-			data[0],  /* RX Attenuator Mutual */
-			data[1],  /* IDAC Mutual */
-			data[2],  /* RX Attenuator Self RX */
-			data[3],  /* IDAC Self RX */
-			data[4],  /* RX Attenuator Self TX */
-			data[5]	  /* IDAC Self TX */
-			);
+	size = sysfs_emit(buf, "%d %d %d %d %d %d ",
+			  data[0],  /* RX Attenuator Mutual */
+			  data[1],  /* IDAC Mutual */
+			  data[2],  /* RX Attenuator Self RX */
+			  data[3],  /* IDAC Self RX */
+			  data[4],  /* RX Attenuator Self TX */
+			  data[5]   /* IDAC Self TX */
+			 );
 
 	/* 3. Read Attenuator Trim. */
 	data_len = sizeof(data);
···
 
 	/* set attenuator trim values. */
 	for (i = 0; i < data_len; i++)
-		size += scnprintf(buf + size, PAGE_SIZE - size,	"%d ", data[i]);
-	size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
+		size += sysfs_emit_at(buf, size, "%d ", data[i]);
+	size += sysfs_emit_at(buf, size, "\n");
 
 resume_scanning:
 	/* 4. Resume Scanning*/

drivers/input/mouse/elan_i2c_core.c

···
 	struct i2c_client *client = to_i2c_client(dev);
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 
-	return sprintf(buf, "0x%04x\n", data->fw_checksum);
+	return sysfs_emit(buf, "0x%04x\n", data->fw_checksum);
 }
 
 static ssize_t elan_sysfs_read_product_id(struct device *dev,
···
 	struct i2c_client *client = to_i2c_client(dev);
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 
-	return sprintf(buf, ETP_PRODUCT_ID_FORMAT_STRING "\n",
-		       data->product_id);
+	return sysfs_emit(buf, ETP_PRODUCT_ID_FORMAT_STRING "\n",
+			  data->product_id);
 }
 
 static ssize_t elan_sysfs_read_fw_ver(struct device *dev,
···
 	struct i2c_client *client = to_i2c_client(dev);
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 
-	return sprintf(buf, "%d.0\n", data->fw_version);
+	return sysfs_emit(buf, "%d.0\n", data->fw_version);
 }
 
 static ssize_t elan_sysfs_read_sm_ver(struct device *dev,
···
 	struct i2c_client *client = to_i2c_client(dev);
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 
-	return sprintf(buf, "%d.0\n", data->sm_version);
+	return sysfs_emit(buf, "%d.0\n", data->sm_version);
 }
 
 static ssize_t elan_sysfs_read_iap_ver(struct device *dev,
···
 	struct i2c_client *client = to_i2c_client(dev);
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 
-	return sprintf(buf, "%d.0\n", data->iap_version);
+	return sysfs_emit(buf, "%d.0\n", data->iap_version);
 }
 
 static ssize_t elan_sysfs_update_fw(struct device *dev,
···
 	if (error)
 		return error;
 
-	return sprintf(buf, "%d\n", (int)mode);
+	return sysfs_emit(buf, "%d\n", (int)mode);
 }
 
 static DEVICE_ATTR(product_id, S_IRUGO, elan_sysfs_read_product_id, NULL);
···
 		goto out;
 	}
 
-	retval = snprintf(buf, PAGE_SIZE, "%d", data->min_baseline);
+	retval = sysfs_emit(buf, "%d", data->min_baseline);
 
 out:
 	mutex_unlock(&data->sysfs_mutex);
···
 		goto out;
 	}
 
-	retval = snprintf(buf, PAGE_SIZE, "%d", data->max_baseline);
+	retval = sysfs_emit(buf, "%d", data->max_baseline);
 
 out:
 	mutex_unlock(&data->sysfs_mutex);