Hi Kumar, Thank you for the patch! Yet something to improve: [auto build test ERROR on next-20220217] [cannot apply to bpf-next/master bpf/master linus/master v5.17-rc4 v5.17-rc3 v5.17-rc2 v5.17-rc5] [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] url: https://github.com/0day-ci/linux/commits/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220220-215105 base: 3c30cf91b5ecc7272b3d2942ae0505dd8320b81c config: mips-randconfig-r012-20220220 (https://download.01.org/0day-ci/archive/20220221/202202210651.wyTgHcwt-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/0day-ci/linux/commit/09a47522ec608218eb6aabd5011316d78ad245e0 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220220-215105 git checkout 09a47522ec608218eb6aabd5011316d78ad245e0 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash kernel/bpf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from kernel/bpf/syscall.c:4: In file included from include/linux/bpf.h:9: In file included from include/linux/workqueue.h:9: In file included from include/linux/timer.h:6: In file included from include/linux/ktime.h:24: In file included from include/linux/time.h:60: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:65: In file included from arch/mips/include/asm/timex.h:19: In file included from arch/mips/include/asm/cpu-type.h:12: In file included from include/linux/smp.h:13: In file included from include/linux/cpumask.h:13: In file included from include/linux/atomic.h:7: In file included from arch/mips/include/asm/atomic.h:23: >> arch/mips/include/asm/cmpxchg.h:83:11: error: call to __xchg_called_with_bad_pointer declared with 'error' attribute: Bad argument size for xchg return __xchg_called_with_bad_pointer(); ^ 1 error generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for OMAP_GPMC Depends on MEMORY && OF_ADDRESS Selected by - MTD_NAND_OMAP2 && MTD && MTD_RAW_NAND && (ARCH_OMAP2PLUS || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST && HAS_IOMEM vim +/error +83 arch/mips/include/asm/cmpxchg.h 5154f3b4194910 Paul Burton 2017-06-09 66 b70eb30056dc84 Paul Burton 2017-06-09 67 extern unsigned long __xchg_small(volatile void *ptr, unsigned long val, b70eb30056dc84 Paul Burton 2017-06-09 68 unsigned int size); b70eb30056dc84 Paul Burton 2017-06-09 69 46f1619500d022 Thomas Bogendoerfer 2019-10-09 70 static __always_inline 46f1619500d022 Thomas Bogendoerfer 2019-10-09 71 unsigned long __xchg(volatile void *ptr, unsigned long x, int size) b81947c646bfef David Howells 2012-03-28 72 { b81947c646bfef David Howells 2012-03-28 73 switch (size) { b70eb30056dc84 Paul Burton 2017-06-09 74 case 1: b70eb30056dc84 Paul Burton 2017-06-09 75 case 2: b70eb30056dc84 Paul Burton 2017-06-09 76 return __xchg_small(ptr, x, size); b70eb30056dc84 Paul Burton 2017-06-09 77 b81947c646bfef David Howells 2012-03-28 78 case 4: 62c6081dca75d6 Paul Burton 2017-06-09 79 return __xchg_asm("ll", "sc", (volatile u32 *)ptr, x); 62c6081dca75d6 Paul Burton 2017-06-09 80 b81947c646bfef David Howells 2012-03-28 81 case 8: 62c6081dca75d6 Paul Burton 2017-06-09 82 if (!IS_ENABLED(CONFIG_64BIT)) 62c6081dca75d6 Paul Burton 2017-06-09 @83 return __xchg_called_with_bad_pointer(); 62c6081dca75d6 Paul Burton 2017-06-09 84 62c6081dca75d6 Paul Burton 2017-06-09 85 return __xchg_asm("lld", "scd", (volatile u64 *)ptr, x); 62c6081dca75d6 Paul Burton 2017-06-09 86 d15dc68c1143e2 Paul Burton 2017-06-09 87 default: d15dc68c1143e2 Paul Burton 2017-06-09 88 return __xchg_called_with_bad_pointer(); b81947c646bfef David Howells 2012-03-28 89 } b81947c646bfef David Howells 2012-03-28 90 } b81947c646bfef David Howells 2012-03-28 91 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx