Re: [PATCH 2/6] Bluetooth: hci_qca: schedule a devm action for disabling the clock

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Hi Bartosz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 0b58e108042b0ed28a71cd7edf5175999955b233]

url:    https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/dt-bindings-bluetooth-qualcomm-describe-the-inputs-from-PMU-for-wcn7850/20240706-055822
base:   0b58e108042b0ed28a71cd7edf5175999955b233
patch link:    https://lore.kernel.org/r/20240705-hci_qca_refactor-v1-2-e2442121c13e%40linaro.org
patch subject: [PATCH 2/6] Bluetooth: hci_qca: schedule a devm action for disabling the clock
config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240707/202407070754.L1XER9qH-lkp@xxxxxxxxx/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project a0c6b8aef853eedaa0980f07c0a502a5a8a9740e)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240707/202407070754.L1XER9qH-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407070754.L1XER9qH-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from drivers/bluetooth/hci_qca.c:23:
   In file included from include/linux/devcoredump.h:12:
   In file included from include/linux/scatterlist.h:8:
   In file included from include/linux/mm.h:2229:
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   In file included from drivers/bluetooth/hci_qca.c:23:
   In file included from include/linux/devcoredump.h:12:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         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'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/bluetooth/hci_qca.c:23:
   In file included from include/linux/devcoredump.h:12:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         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'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/bluetooth/hci_qca.c:23:
   In file included from include/linux/devcoredump.h:12:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
>> drivers/bluetooth/hci_qca.c:2499:2: warning: label at end of compound statement is a C23 extension [-Wc23-extensions]
    2499 |         }
         |         ^
   8 warnings generated.


vim +2499 drivers/bluetooth/hci_qca.c

05ba533c5c1155 Thierry Escande                2018-03-29  2478  
05ba533c5c1155 Thierry Escande                2018-03-29  2479  static void qca_serdev_remove(struct serdev_device *serdev)
05ba533c5c1155 Thierry Escande                2018-03-29  2480  {
05ba533c5c1155 Thierry Escande                2018-03-29  2481  	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
054ec5e94a46b0 Venkata Lakshmi Narayana Gubba 2020-09-10  2482  	struct qca_power *power = qcadev->bt_power;
05ba533c5c1155 Thierry Escande                2018-03-29  2483  
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2484  	switch (qcadev->btsoc_type) {
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2485  	case QCA_WCN3988:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2486  	case QCA_WCN3990:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2487  	case QCA_WCN3991:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2488  	case QCA_WCN3998:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2489  	case QCA_WCN6750:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2490  	case QCA_WCN6855:
e0c1278ac89b03 Neil Armstrong                 2023-08-16  2491  	case QCA_WCN7850:
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2492  		if (power->vregs_on) {
c2d7827338618a Balakrishna Godavarthi         2018-08-22  2493  			qca_power_shutdown(&qcadev->serdev_hu);
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2494  			break;
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2495  		}
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2496  		fallthrough;
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2497  
691d54d0f7cb14 Neil Armstrong                 2023-08-16  2498  	default:
691d54d0f7cb14 Neil Armstrong                 2023-08-16 @2499  	}
fa9ad876b8e0eb Balakrishna Godavarthi         2018-08-03  2500  
fa9ad876b8e0eb Balakrishna Godavarthi         2018-08-03  2501  	hci_uart_unregister_device(&qcadev->serdev_hu);
05ba533c5c1155 Thierry Escande                2018-03-29  2502  }
05ba533c5c1155 Thierry Escande                2018-03-29  2503  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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