Hi Sam, kernel test robot noticed the following build errors: [auto build test ERROR on jic23-iio/togreg] [also build test ERROR on linus/master v6.14-rc4 next-20250227] [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/Sam-Winchenbach/dt-bindings-iio-filter-Add-lpf-hpf-freq-margins/20250225-215003 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20250225134612.577022-1-sam.winchenbach%40framepointer.org patch subject: [PATCH v4 1/2] iio: filter: admv8818: fix range calculation config: um-allmodconfig (https://download.01.org/0day-ci/archive/20250228/202502280434.DHtcsf7x-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 204dcafec0ecf0db81d420d2de57b02ada6b09ec) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250228/202502280434.DHtcsf7x-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/202502280434.DHtcsf7x-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/iio/filter/admv8818.c:17: 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: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/filter/admv8818.c:17: 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: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/filter/admv8818.c:17: 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: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/filter/admv8818.c:304:34: error: use of undeclared identifier 'lfp_corner_target'; did you mean 'lpf_corner_target'? 304 | ret = __admv8818_lpf_select(st, lfp_corner_target); | ^~~~~~~~~~~~~~~~~ | lpf_corner_target drivers/iio/filter/admv8818.c:283:25: note: 'lpf_corner_target' declared here 283 | u64 hpf_corner_target, lpf_corner_target; | ^ 12 warnings and 1 error generated. vim +304 drivers/iio/filter/admv8818.c 279 280 static int admv8818_rfin_band_select(struct admv8818_state *st) 281 { 282 int ret; 283 u64 hpf_corner_target, lpf_corner_target; 284 285 st->cf_hz = clk_get_rate(st->clkin); 286 287 // Check for underflow 288 if (st->cf_hz > st->hpf_margin_hz) 289 hpf_corner_target = st->cf_hz - st->hpf_margin_hz; 290 else 291 hpf_corner_target = 0; 292 293 // Check for overflow 294 lpf_corner_target = st->cf_hz + st->lpf_margin_hz; 295 if (lpf_corner_target < st->cf_hz) 296 lpf_corner_target = U64_MAX; 297 298 mutex_lock(&st->lock); 299 300 ret = __admv8818_hpf_select(st, hpf_corner_target); 301 if (ret) 302 goto exit; 303 > 304 ret = __admv8818_lpf_select(st, lfp_corner_target); 305 exit: 306 mutex_unlock(&st->lock); 307 return ret; 308 } 309 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
