Hi Ciprian, kernel test robot noticed the following build warnings: [auto build test WARNING on abelloni/rtc-next] [also build test WARNING on robh/for-next arm64/for-next/core linus/master v6.11-rc7 next-20240912] [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/Ciprian-Costea/dt-bindings-rtc-add-schema-for-NXP-S32G2-S32G3-SoCs/20240911-150205 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next patch link: https://lore.kernel.org/r/20240911070028.127659-3-ciprianmarian.costea%40oss.nxp.com patch subject: [PATCH 2/4] rtc: s32g: add NXP S32G2/S32G3 SoC support config: hexagon-randconfig-r112-20240913 (https://download.01.org/0day-ci/archive/20240913/202409131950.ozDVVv5X-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project bf684034844c660b778f0eba103582f582b710c9) reproduce: (https://download.01.org/0day-ci/archive/20240913/202409131950.ozDVVv5X-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/202409131950.ozDVVv5X-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/rtc/rtc-s32g.c:7: In file included from include/linux/of_irq.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: 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/rtc/rtc-s32g.c:7: In file included from include/linux/of_irq.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: 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/rtc/rtc-s32g.c:7: In file included from include/linux/of_irq.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: 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/rtc/rtc-s32g.c:668:34: warning: unused variable 'rtc_dt_ids' [-Wunused-const-variable] 668 | static const struct of_device_id rtc_dt_ids[] = { | ^~~~~~~~~~ 7 warnings generated. vim +/rtc_dt_ids +668 drivers/rtc/rtc-s32g.c 667 > 668 static const struct of_device_id rtc_dt_ids[] = { 669 {.compatible = "nxp,s32g-rtc" }, 670 { /* sentinel */ }, 671 }; 672 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
