Hi Manish, Thank you for the patch! Yet something to improve: [auto build test ERROR on bluetooth/master] [also build test ERROR on bluetooth-next/master linus/master v6.3-rc4 next-20230330] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Manish-Mandlik/Bluetooth-Add-vhci-devcoredump-support/20230330-140719 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master patch link: https://lore.kernel.org/r/20230329230447.v12.2.Ief9a81a3643d2291f6db2b3695c3a6e0159467dc%40changeid patch subject: [PATCH v12 2/4] Bluetooth: Add vhci devcoredump support config: hexagon-randconfig-r045-20230329 (https://download.01.org/0day-ci/archive/20230330/202303301735.9Keuj1Mu-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 # https://github.com/intel-lab-lkp/linux/commit/a96b21e272af3d91f47b77b297f1289c867259b4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Manish-Mandlik/Bluetooth-Add-vhci-devcoredump-support/20230330-140719 git checkout a96b21e272af3d91f47b77b297f1289c867259b4 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/bluetooth/ lib/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303301735.9Keuj1Mu-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/bluetooth/hci_vhci.c:22: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/bluetooth/hci_vhci.c:22: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/bluetooth/hci_vhci.c:22: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ >> drivers/bluetooth/hci_vhci.c:334:9: error: no member named 'dump' in 'struct hci_dev' hdev->dump.timeout = msecs_to_jiffies(dump_data.timeout * 1000); ~~~~ ^ 6 warnings and 1 error generated. vim +334 drivers/bluetooth/hci_vhci.c 310 311 static ssize_t force_devcd_write(struct file *file, const char __user *user_buf, 312 size_t count, loff_t *ppos) 313 { 314 struct vhci_data *data = file->private_data; 315 struct hci_dev *hdev = data->hdev; 316 struct sk_buff *skb = NULL; 317 struct devcoredump_test_data dump_data; 318 int ret; 319 320 ret = simple_write_to_buffer(&dump_data, sizeof(dump_data), ppos, 321 user_buf, count); 322 if (ret < count) 323 return ret; 324 325 skb = alloc_skb(sizeof(dump_data.data), GFP_ATOMIC); 326 if (!skb) 327 return -ENOMEM; 328 skb_put_data(skb, &dump_data.data, sizeof(dump_data.data)); 329 330 hci_devcd_register(hdev, vhci_coredump, vhci_coredump_hdr, NULL); 331 332 /* Force the devcoredump timeout */ 333 if (dump_data.timeout) > 334 hdev->dump.timeout = msecs_to_jiffies(dump_data.timeout * 1000); 335 336 ret = hci_devcd_init(hdev, skb->len); 337 if (ret) { 338 BT_ERR("Failed to generate devcoredump"); 339 kfree_skb(skb); 340 return ret; 341 } 342 343 hci_devcd_append(hdev, skb); 344 345 switch (dump_data.state) { 346 case HCI_DEVCOREDUMP_DONE: 347 hci_devcd_complete(hdev); 348 break; 349 case HCI_DEVCOREDUMP_ABORT: 350 hci_devcd_abort(hdev); 351 break; 352 case HCI_DEVCOREDUMP_TIMEOUT: 353 /* Do nothing */ 354 break; 355 default: 356 return -EINVAL; 357 } 358 359 return count; 360 } 361 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests