drivers/iio/light/opt4001.c:215:9: error: call to '__compiletime_assert_529' declared with 'error' attribute: FIELD_PREP: value too large for the field

From: kernel test robot
Date: Sat Jul 27 2024 - 17:59:51 EST

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Previous message: kernel test robot: "drivers/iio/light/opt4001.c:215:9: error: call to '__compiletime_assert_530' declared with 'error' attribute: FIELD_PREP: value too large for the field"
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ff30564411ffdcee49d579cb15eb13185a36e253
commit: 96e20adc43c4f81e9163a5188cee75a6dd393e09 regulator: change stubbed devm_regulator_get_enable to return Ok
date: 3 months ago
config: s390-randconfig-r064-20240727 (https://download.01.org/0day-ci/archive/20240728/202407280532.J67mvOsV-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240728/202407280532.J67mvOsV-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/202407280532.J67mvOsV-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from drivers/iio/light/opt4001.c:16:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/iio/light/opt4001.c:16:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/iio/light/opt4001.c:16:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/iio/light/opt4001.c:215:9: error: call to '__compiletime_assert_529' declared with 'error' attribute: FIELD_PREP: value too large for the field
reg |= FIELD_PREP(OPT4001_CTRL_CONV_TIME_MASK, chip->int_time);
^
include/linux/bitfield.h:115:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^
include/linux/bitfield.h:68:3: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:437:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:430:4: note: expanded from macro '__compiletime_assert'
prefix ## suffix(); \
^
<scratch space>:36:1: note: expanded from here
__compiletime_assert_529
^
12 warnings and 1 error generated.

vim +215 drivers/iio/light/opt4001.c

9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 207
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 208 static int opt4001_set_conf(struct opt4001_chip *chip)
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 209 {
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 210 struct device *dev = &chip->client->dev;
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 211 u16 reg;
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 212 int ret;
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 213
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 214 reg = FIELD_PREP(OPT4001_CTRL_RANGE_MASK, OPT4001_CTRL_LIGHT_SCALE_AUTO);
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 @215 reg |= FIELD_PREP(OPT4001_CTRL_CONV_TIME_MASK, chip->int_time);
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 216 reg |= FIELD_PREP(OPT4001_CTRL_OPER_MODE_MASK, OPT4001_CTRL_OPER_MODE_CONTINUOUS);
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 217
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 218 ret = regmap_write(chip->regmap, OPT4001_CTRL, reg);
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 219 if (ret)
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 220 dev_err(dev, "Failed to set configuration\n");
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 221
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 222 return ret;
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 223 }
9a9608418292bb Stefan Windfeldt-Prytz 2023-04-26 224

:::::: The code at line 215 was first introduced by commit
:::::: 9a9608418292bb8733805c3f3123dfe0454fadac iio: light: Add support for TI OPT4001 light sensor

:::::: TO: Stefan Windfeldt-Prytz <stefan.windfeldt-prytz@xxxxxxxx>
:::::: CC: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

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Next message: Dmitry Baryshkov: "Re: [PATCH v3 00/19] Add Freescale i.MX8qxp Display Controller support"
Previous message: kernel test robot: "drivers/iio/light/opt4001.c:215:9: error: call to '__compiletime_assert_530' declared with 'error' attribute: FIELD_PREP: value too large for the field"
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