Hi Charles, kernel test robot noticed the following build warnings: [auto build test WARNING on hid/for-next] [also build test WARNING on linus/master v6.9 next-20240523] [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/Charles-Wang/HID-hid-goodix-Add-Goodix-HID-over-SPI-driver/20240524-183743 base: https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next patch link: https://lore.kernel.org/r/20240524103407.36861-1-charles.goodix%40gmail.com patch subject: [PATCH] HID: hid-goodix: Add Goodix HID-over-SPI driver config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240525/202405250142.ZtT610HW-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 7aa382fd7257d9bd4f7fc50bb7078a3c26a1628c) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240525/202405250142.ZtT610HW-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/202405250142.ZtT610HW-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/hid/hid-goodix.c:9: In file included from include/linux/hid.h:29: In file included from include/linux/hid_bpf.h:6: In file included from include/linux/bpf.h:21: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2253: 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/hid/hid-goodix.c:9: In file included from include/linux/hid.h:29: In file included from include/linux/hid_bpf.h:6: In file included from include/linux/bpf.h:31: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:26: In file included from include/linux/kernel_stat.h:9: In file included from include/linux/interrupt.h:11: 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: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/hid/hid-goodix.c:9: In file included from include/linux/hid.h:29: In file included from include/linux/hid_bpf.h:6: In file included from include/linux/bpf.h:31: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:26: In file included from include/linux/kernel_stat.h:9: In file included from include/linux/interrupt.h:11: 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: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/hid/hid-goodix.c:9: In file included from include/linux/hid.h:29: In file included from include/linux/hid_bpf.h:6: In file included from include/linux/bpf.h:31: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:26: In file included from include/linux/kernel_stat.h:9: In file included from include/linux/interrupt.h:11: 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: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/hid/hid-goodix.c:627:36: warning: unused variable 'goodix_spi_acpi_match' [-Wunused-const-variable] 627 | static const struct acpi_device_id goodix_spi_acpi_match[] = { | ^~~~~~~~~~~~~~~~~~~~~ 8 warnings generated. vim +/goodix_spi_acpi_match +627 drivers/hid/hid-goodix.c 626 > 627 static const struct acpi_device_id goodix_spi_acpi_match[] = { 628 { "GXTS7986" }, 629 { }, 630 }; 631 MODULE_DEVICE_TABLE(acpi, goodix_spi_acpi_match); 632 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki