openwrt/target/linux/generic/backport-5.15/795-v6.3-04-r8152-remove-rtl_vendor_mode-function.patch

From 95a4c1d617b92cdc4522297741b56e8f6cd01a1e Mon Sep 17 00:00:00 2001
From: Hayes Wang <[email protected]>
Date: Thu, 19 Jan 2023 15:40:42 +0800
Subject: [PATCH] r8152: remove rtl_vendor_mode function

After commit ec51fbd1b8a2 ("r8152: add USB device driver for
config selection"), the code about changing USB configuration
in rtl_vendor_mode() wouldn't be run anymore. Therefore, the
function could be removed.

Signed-off-by: Hayes Wang <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
---
 drivers/net/usb/r8152.c | 39 +--------------------------------------
 1 file changed, 1 insertion(+), 38 deletions(-)

--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -8281,43 +8281,6 @@ static bool rtl_check_vendor_ok(struct u
 	return true;
 }
 
-static bool rtl_vendor_mode(struct usb_interface *intf)
-{
-	struct usb_host_interface *alt = intf->cur_altsetting;
-	struct usb_device *udev;
-	struct usb_host_config *c;
-	int i, num_configs;
-
-	if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC)
-		return rtl_check_vendor_ok(intf);
-
-	/* The vendor mode is not always config #1, so to find it out. */
-	udev = interface_to_usbdev(intf);
-	c = udev->config;
-	num_configs = udev->descriptor.bNumConfigurations;
-	if (num_configs < 2)
-		return false;
-
-	for (i = 0; i < num_configs; (i++, c++)) {
-		struct usb_interface_descriptor	*desc = NULL;
-
-		if (c->desc.bNumInterfaces > 0)
-			desc = &c->intf_cache[0]->altsetting->desc;
-		else
-			continue;
-
-		if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
-			usb_driver_set_configuration(udev, c->desc.bConfigurationValue);
-			break;
-		}
-	}
-
-	if (i == num_configs)
-		dev_err(&intf->dev, "Unexpected Device\n");
-
-	return false;
-}
-
 static int rtl8152_pre_reset(struct usb_interface *intf)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
@@ -9650,7 +9613,7 @@ static int rtl8152_probe(struct usb_inte
 	if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
 		return -ENODEV;
 
-	if (!rtl_vendor_mode(intf))
+	if (!rtl_check_vendor_ok(intf))
 		return -ENODEV;
 
 	usb_reset_device(udev);