Re: [PATCH V3 2/2] Add support for Awinic proximity sensor

kernel test robot
2024-07-12T22:23:11Z

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@intel.com/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@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407130649.s20WgzXd-lkp@intel.com/

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