Input: wacom - remove passing id for wacom_set_report

Every call of wacom_set_report was passing "id" as a separate parameter
and buffer also passed the same information. We can use first u8 of the
buffer instead of "id"

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 17 insertions, 18 deletions

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index a12cd9c3a6ee..6e0c19146a79 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -36,13 +36,13 @@ static int wacom_get_report(struct hid_device *hdev, u8 type, u8 id,
         return retval;
 }
 
-static int wacom_set_report(struct hid_device *hdev, u8 type, u8 id,
-                            void *buf, size_t size, unsigned int retries)
+static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf,
+                            size_t size, unsigned int retries)
 {
         int retval;
 
         do {
-                retval = hid_hw_raw_request(hdev, id, buf, size, type,
+                retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
                                 HID_REQ_SET_REPORT);
         } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
 
@@ -251,8 +251,8 @@ static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
                 rep_data[0] = report_id;
                 rep_data[1] = mode;
 
-                error = wacom_set_report(hdev, HID_FEATURE_REPORT,
-                                         report_id, rep_data, length, 1);
+                error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data,
+                                         length, 1);
                 if (error >= 0)
                         error = wacom_get_report(hdev, HID_FEATURE_REPORT,
                                                  report_id, rep_data, length, 1);
@@ -274,15 +274,15 @@ static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
         case GRAPHIRE_BT:
                 rep_data[0] = 0x03;
                 rep_data[1] = 0x00;
-                ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
-                                        rep_data[0], rep_data, 2, 3);
+                ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
+                                        3);
 
                 if (ret >= 0) {
                         rep_data[0] = speed == 0 ? 0x05 : 0x06;
                         rep_data[1] = 0x00;
 
                         ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
-                                                rep_data[0], rep_data, 2, 3);
+                                                rep_data, 2, 3);
 
                         if (ret >= 0) {
                                 wacom->wacom_wac.bt_high_speed = speed;
@@ -306,8 +306,8 @@ static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
                 rep_data[0] = 0x03;
                 rep_data[1] = wacom->wacom_wac.bt_features;
 
-                ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
-                                        rep_data[0], rep_data, 2, 1);
+                ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
+                                        1);
                 if (ret >= 0)
                         wacom->wacom_wac.bt_high_speed = speed;
                 break;
@@ -520,8 +520,8 @@ static int wacom_led_control(struct wacom *wacom)
                 buf[4] = wacom->led.img_lum;
         }
 
-        retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
-                                  WAC_CMD_LED_CONTROL, buf, 9, WAC_CMD_RETRIES);
+        retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 9,
+                                  WAC_CMD_RETRIES);
         kfree(buf);
 
         return retval;
@@ -541,8 +541,8 @@ static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
         /* Send 'start' command */
         buf[0] = WAC_CMD_ICON_START;
         buf[1] = 1;
-        retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
-                                  WAC_CMD_ICON_START, buf, 2, WAC_CMD_RETRIES);
+        retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
+                                  WAC_CMD_RETRIES);
         if (retval < 0)
                 goto out;
 
@@ -553,8 +553,7 @@ static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
                 memcpy(buf + 3, img + i * chunk_len, chunk_len);
 
                 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
-                                          xfer_id, buf, chunk_len + 3,
-                                          WAC_CMD_RETRIES);
+                                          buf, chunk_len + 3, WAC_CMD_RETRIES);
                 if (retval < 0)
                         break;
         }
@@ -562,8 +561,8 @@ static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
         /* Send 'stop' */
         buf[0] = WAC_CMD_ICON_START;
         buf[1] = 0;
-        wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, WAC_CMD_ICON_START,
-                         buf, 2, WAC_CMD_RETRIES);
+        wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
+                         WAC_CMD_RETRIES);
 
 out:
         kfree(buf);