Hi Jorge, kernel test robot noticed the following build warnings: [auto build test WARNING on aac287ec80d71a7ab7e44c936a434625417c3e30] url: https://github.com/intel-lab-lkp/linux/commits/Jorge-Marques/iio-code-mark-iio_dev-as-const-in-iio_buffer_enabled/20250306-220719 base: aac287ec80d71a7ab7e44c936a434625417c3e30 patch link: https://lore.kernel.org/r/20250306-iio-driver-ad4052-v1-4-2badad30116c%40analog.com patch subject: [PATCH 4/4] iio: adc: add support for ad4052 config: um-randconfig-r073-20250307 (https://download.01.org/0day-ci/archive/20250308/202503080031.APfLdyiz-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250308/202503080031.APfLdyiz-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/202503080031.APfLdyiz-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/iio/adc/ad4052.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: 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/um/include/asm/io.h:24: include/asm-generic/io.h:549:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 549 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:567:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 567 | 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/adc/ad4052.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: 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/um/include/asm/io.h:24: include/asm-generic/io.h:585:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | 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/adc/ad4052.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: 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/um/include/asm/io.h:24: include/asm-generic/io.h:601:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 601 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:616:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 616 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:631:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 631 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:724:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 724 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:737:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 737 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:750:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 750 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:764:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 764 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:778:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 778 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:792:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 792 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> drivers/iio/adc/ad4052.c:201:41: warning: unused variable 'ad4052_regmap_rd_table' [-Wunused-const-variable] 201 | static const struct regmap_access_table ad4052_regmap_rd_table = { | ^~~~~~~~~~~~~~~~~~~~~~ >> drivers/iio/adc/ad4052.c:214:41: warning: unused variable 'ad4052_regmap_wr_table' [-Wunused-const-variable] 214 | static const struct regmap_access_table ad4052_regmap_wr_table = { | ^~~~~~~~~~~~~~~~~~~~~~ >> drivers/iio/adc/ad4052.c:239:18: warning: unused variable 'ad4052_sample_rate_avail' [-Wunused-const-variable] 239 | static const int ad4052_sample_rate_avail[] = { | ^~~~~~~~~~~~~~~~~~~~~~~~ 15 warnings generated. vim +/ad4052_regmap_rd_table +201 drivers/iio/adc/ad4052.c 200 > 201 static const struct regmap_access_table ad4052_regmap_rd_table = { 202 .yes_ranges = ad4052_regmap_rd_ranges, 203 .n_yes_ranges = ARRAY_SIZE(ad4052_regmap_rd_ranges), 204 }; 205 206 static const struct regmap_range ad4052_regmap_wr_ranges[] = { 207 regmap_reg_range(AD4052_REG_INTERFACE_CONFIG_A, AD4052_REG_DEVICE_CONFIG), 208 regmap_reg_range(AD4052_REG_SCRATCH_PAD, AD4052_REG_SCRATCH_PAD), 209 regmap_reg_range(AD4052_REG_STREAM_MODE, AD4052_REG_INTERFACE_STATUS), 210 regmap_reg_range(AD4052_REG_MODE_SET, AD4052_REG_MON_VAL), 211 regmap_reg_range(AD4052_REG_FUSE_CRC, AD4052_REG_DEVICE_STATUS), 212 }; 213 > 214 static const struct regmap_access_table ad4052_regmap_wr_table = { 215 .yes_ranges = ad4052_regmap_wr_ranges, 216 .n_yes_ranges = ARRAY_SIZE(ad4052_regmap_wr_ranges), 217 }; 218 219 static const struct iio_event_spec ad4052_events[] = { 220 { 221 .type = IIO_EV_TYPE_THRESH, 222 .dir = IIO_EV_DIR_EITHER, 223 .mask_shared_by_all = BIT(IIO_EV_INFO_ENABLE) 224 }, 225 { 226 .type = IIO_EV_TYPE_THRESH, 227 .dir = IIO_EV_DIR_RISING, 228 .mask_shared_by_all = BIT(IIO_EV_INFO_VALUE) | 229 BIT(IIO_EV_INFO_HYSTERESIS) 230 }, 231 { 232 .type = IIO_EV_TYPE_THRESH, 233 .dir = IIO_EV_DIR_FALLING, 234 .mask_shared_by_all = BIT(IIO_EV_INFO_VALUE) | 235 BIT(IIO_EV_INFO_HYSTERESIS) 236 } 237 }; 238 > 239 static const int ad4052_sample_rate_avail[] = { 240 2000000, 1000000, 300000, 100000, 33300, 241 10000, 3000, 500, 333, 250, 200, 242 166, 140, 125, 111 243 }; 244 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
