Re: [PATCH v12 2/4] Bluetooth: Add vhci devcoredump support

From: kernel test robot
Date: Thu Mar 30 2023 - 06:03:27 EST


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