Hi Alice, kernel test robot noticed the following build errors: [auto build test ERROR on a64dcfb451e254085a7daee5fe51bf22959d52d3] url: https://github.com/intel-lab-lkp/linux/commits/Alice-Ryhl/mm-rust-add-abstraction-for-struct-mm_struct/20250304-195314 base: a64dcfb451e254085a7daee5fe51bf22959d52d3 patch link: https://lore.kernel.org/r/20250304-vma-v15-5-5c641b31980a%40google.com patch subject: [PATCH v15 5/9] mm: rust: add mmput_async support config: riscv-randconfig-r113-20250309 (https://download.01.org/0day-ci/archive/20250309/202503091916.QousmtcY-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project e15545cad8297ec7555f26e5ae74a9f0511203e7) reproduce: (https://download.01.org/0day-ci/archive/20250309/202503091916.QousmtcY-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/202503091916.QousmtcY-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from rust/helpers/helpers.c:10: In file included from rust/helpers/blk.c:3: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:9: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from rust/helpers/helpers.c:10: In file included from rust/helpers/blk.c:3: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:9: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from rust/helpers/helpers.c:10: In file included from rust/helpers/blk.c:3: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:9: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from rust/helpers/helpers.c:10: In file included from rust/helpers/blk.c:3: In file included from include/linux/blk-mq.h:5: In file included from include/linux/blkdev.h:9: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ clang diag: arch/riscv/include/asm/io.h:104:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:105:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:106:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:118:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:119:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:120:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 7 warnings generated. clang diag: arch/riscv/include/asm/io.h:104:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:105:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:106:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:118:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:119:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:120:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:104:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:105:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:106:53: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:118:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:119:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: arch/riscv/include/asm/io.h:120:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] clang diag: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] >> error[E0425]: cannot find function `mmput_async` in crate `bindings` --> rust/kernel/mm.rs:143:28 | 143 | unsafe { bindings::mmput_async(obj.cast().as_ptr()) }; | ^^^^^^^^^^^ not found in `bindings` -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
