Hi Ronak, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android12-5.10 head: 6b7c37f6c44952d6702ccd410b3a4f7866f5e263 commit: 80fef39de7e9dbe706d0cbc820a09b5c05dc366f [9580/13762] ANDROID: usb: gadget: Resolve NULL pointer dereference in composite_disconnect config: arm64-randconfig-r014-20210928 (attached as .config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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 git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android12-5.10 git checkout 80fef39de7e9dbe706d0cbc820a09b5c05dc366f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/usb/gadget/configfs.c: In function 'configfs_composite_disconnect': 1620 | acc_disconnect(); | ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for WIRELESS_EXT Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WEXT_CORE Depends on NET && WIRELESS && (CFG80211_WEXT || WIRELESS_EXT Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for HVC_DRIVER Depends on TTY Selected by - GKI_HIDDEN_VIRTUAL_CONFIGS WARNING: unmet direct dependencies detected for WEXT_PROC Depends on NET && WIRELESS && PROC_FS && WEXT_CORE Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WEXT_PRIV Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG WARNING: unmet direct dependencies detected for WEXT_SPY Depends on NET && WIRELESS Selected by - GKI_LEGACY_WEXT_ALLCONFIG 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 */ 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