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