From 5d143ec451429891385a21617b292f2ceaa684ea Mon Sep 17 00:00:00 2001
From: Linyu Yuan <quic_linyyuan@quicinc.com>
Date: Thu, 18 Nov 2021 12:53:32 +0800
Subject: [PATCH] usb: gadget: configfs: use to_config_usb_cfg() in os_desc_link()
Git-commit: 5d143ec451429891385a21617b292f2ceaa684ea
Patch-mainline: v5.17-rc1
References: git-fixes

replace open-coded container_of() with to_config_usb_cfg() helper.

Reviewed-by: Jack Pham <quic_jackp@quicinc.com>
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Link: https://lore.kernel.org/r/1637211213-16400-4-git-send-email-quic_linyyuan@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/usb/gadget/configfs.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -890,9 +890,7 @@ static int os_desc_link(struct config_it
 	struct gadget_info *gi = container_of(to_config_group(os_desc_ci),
 					struct gadget_info, os_desc_group);
 	struct usb_composite_dev *cdev = &gi->cdev;
-	struct config_usb_cfg *c_target =
-		container_of(to_config_group(usb_cfg_ci),
-			     struct config_usb_cfg, group);
+	struct config_usb_cfg *c_target = to_config_usb_cfg(usb_cfg_ci);
 	struct usb_configuration *c;
 	int ret;