Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on 43db1e03c086ed20cc75808d3f45e780ec4ca26e] url: https://github.com/intel-lab-lkp/linux/commits/wangshuaijie-awinic-com/dt-bindings-iio-Add-YAML-to-Awinic-proximity-sensor/20240712-194024 base: 43db1e03c086ed20cc75808d3f45e780ec4ca26e patch link: https://lore.kernel.org/r/20240712113200.2468249-3-wangshuaijie%40awinic.com patch subject: [PATCH V3 2/2] Add support for Awinic proximity sensor config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240713/202407130649.s20WgzXd-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/20240713/202407130649.s20WgzXd-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/202407130649.s20WgzXd-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/iio/proximity/aw9610x.c:9: In file included from drivers/iio/proximity/aw_sar.h:4: In file included from drivers/iio/proximity/aw_sar_type.h:5: In file included from drivers/iio/proximity/aw_sar_comm_interface.h:6: In file included from include/linux/i2c.h:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: 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/iio/proximity/aw9610x.c:9: In file included from drivers/iio/proximity/aw_sar.h:4: In file included from drivers/iio/proximity/aw_sar_type.h:5: In file included from drivers/iio/proximity/aw_sar_comm_interface.h:6: In file included from include/linux/i2c.h:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: 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/iio/proximity/aw9610x.c:9: In file included from drivers/iio/proximity/aw_sar.h:4: In file included from drivers/iio/proximity/aw_sar_type.h:5: In file included from drivers/iio/proximity/aw_sar_comm_interface.h:6: In file included from include/linux/i2c.h:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: 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); | ~~~~~~~~~~ ^ In file included from drivers/iio/proximity/aw9610x.c:9: In file included from drivers/iio/proximity/aw_sar.h:4: In file included from drivers/iio/proximity/aw_sar_type.h:5: In file included from drivers/iio/proximity/aw_sar_comm_interface.h:6: In file included from include/linux/i2c.h:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: In file included from include/linux/mm.h:2258: 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_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/iio/proximity/aw9610x.c:709:16: warning: stack frame size (1432) exceeds limit (1024) in 'aw9610x_awrw_set' [-Wframe-larger-than] 709 | static ssize_t aw9610x_awrw_set(void *data, const char *buf, size_t count) | ^ 8 warnings generated. vim +/aw9610x_awrw_set +709 drivers/iio/proximity/aw9610x.c 708 > 709 static ssize_t aw9610x_awrw_set(void *data, const char *buf, size_t count) 710 { 711 struct aw_sar *p_sar = (struct aw_sar *)data; 712 struct aw9610x *aw9610x = (struct aw9610x *)p_sar->priv_data; 713 unsigned int datatype[3] = { 0 }; 714 715 if (sscanf(buf, "%u %u %u", &datatype[0], &datatype[1], &datatype[2]) == 3) { 716 aw9610x->aw_i2c_package.addr_bytes = (unsigned char)datatype[0]; 717 aw9610x->aw_i2c_package.data_bytes = (unsigned char)datatype[1]; 718 aw9610x->aw_i2c_package.reg_num = (unsigned char)datatype[2]; 719 720 aw9610x_addrblock_load(p_sar, buf); 721 if (count > 7 + 5 * aw9610x->aw_i2c_package.addr_bytes) 722 aw9610x_datablock_load(p_sar, buf); 723 } 724 725 return count; 726 } 727 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
