linux-kernel - [ammarfaizi2-block:google/android/kernel/common/android13-5.10 2301/9999] drivers/usb/gadget/configfs.c:1620:2: error: implicit declaration of function 'acc

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Date:   Tue, 25 Jan 2022 00:44:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ronak Vijay Raheja <rraheja@...eaurora.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...weeb.org>,
        linux-kernel@...r.kernel.org,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Jack Pham <jackp@...eaurora.org>,
        Eddie Hung <eddie.hung@...iatek.com>
Subject: [ammarfaizi2-block:google/android/kernel/common/android13-5.10
 2301/9999] drivers/usb/gadget/configfs.c:1620:2: error: implicit declaration
 of function 'acc_disconnect'

Hi Ronak,

FYI, the error/warning still remains.

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android13-5.10
head:   eb69f26fe8e2177cfb7cbf859a23fc5ac59cacb7
commit: 80fef39de7e9dbe706d0cbc820a09b5c05dc366f [2301/9999] ANDROID: usb: gadget: Resolve NULL pointer dereference in composite_disconnect
config: arm64-randconfig-r021-20220120 (https://download.01.org/0day-ci/archive/20220125/202201250013.vOmQcvaI-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/80fef39de7e9dbe706d0cbc820a09b5c05dc366f
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android13-5.10
        git checkout 80fef39de7e9dbe706d0cbc820a09b5c05dc366f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/usb/gadget/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/usb/gadget/configfs.c:1620:2: error: implicit declaration of function 'acc_disconnect' [-Werror,-Wimplicit-function-declaration]
           acc_disconnect();
           ^
   1 error generated.


vim +/acc_disconnect +1620 drivers/usb/gadget/configfs.c

  1603	
  1604	static void configfs_composite_disconnect(struct usb_gadget *gadget)
  1605	{
  1606		struct usb_composite_dev *cdev;
  1607		struct gadget_info *gi;
  1608		unsigned long flags;
  1609	
  1610		cdev = get_gadget_data(gadget);
  1611		if (!cdev)
  1612			return;
  1613	
  1614	#ifdef CONFIG_USB_CONFIGFS_F_ACC
  1615		/*
  1616		 * accessory HID support can be active while the
  1617		 * accessory function is not actually enabled,
  1618		 * so we need to inform it when we are disconnected.
  1619		 */
> 1620		acc_disconnect();
  1621	#endif
  1622		gi = container_of(cdev, struct gadget_info, cdev);
  1623		spin_lock_irqsave(&gi->spinlock, flags);
  1624		cdev = get_gadget_data(gadget);
  1625		if (!cdev || gi->unbind) {
  1626			spin_unlock_irqrestore(&gi->spinlock, flags);
  1627			return;
  1628		}
  1629	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org