enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/input/tablet/gtco.c
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@@ -676,8 +676,8 @@
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 			/* Mask out the Y tilt value used for pressure */
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 			device->buffer[7] = (u8)((device->buffer[7]) & 0x7F);
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+			fallthrough;
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-			/* Fall thru */
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 		case 4:
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 			/* Tilt */
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 			input_report_abs(inputdev, ABS_TILT_X,
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@@ -685,8 +685,8 @@
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 			input_report_abs(inputdev, ABS_TILT_Y,
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 					 sign_extend32(device->buffer[7], 6));
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+			fallthrough;
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-			/* Fall thru */
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 		case 2:
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 		case 3:
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 			/* Convert buttons, only 5 bits possible */
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@@ -695,8 +695,8 @@
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 			/* We don't apply any meaning to the bitmask,
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 			   just report */
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 			input_event(inputdev, EV_MSC, MSC_SERIAL, val);
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+			fallthrough;
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-			/*  Fall thru */
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 		case 1:
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 			/* All reports have X and Y coords in the same place */
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 			val = get_unaligned_le16(&device->buffer[1]);
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@@ -892,7 +892,8 @@
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 	if (usb_endpoint_xfer_int(endpoint))
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 		dev_dbg(&usbinterface->dev, "endpoint: we have interrupt endpoint\n");
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-	dev_dbg(&usbinterface->dev, "endpoint extra len:%d\n", usbinterface->altsetting[0].extralen);
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+	dev_dbg(&usbinterface->dev, "interface extra len:%d\n",
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+		usbinterface->cur_altsetting->extralen);
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 	/*
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 	 * Find the HID descriptor so we can find out the size of the
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@@ -969,8 +970,6 @@
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 	input_dev->dev.parent = &usbinterface->dev;
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 	/* Setup the URB, it will be posted later on open of input device */
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-	endpoint = &usbinterface->cur_altsetting->endpoint[0].desc;
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-
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 	usb_fill_int_urb(gtco->urbinfo,
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 			 udev,
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 			 usb_rcvintpipe(udev,