tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable head: a9c5ffc5c68640a5ade3d65a43954a0971d8cfd2 commit: 377a4459434f773b98bb898dc81b33fb0e68c7be [64/70] crash: add generic infrastructure for crash hotplug support config: um-allnoconfig (https://download.01.org/0day-ci/archive/20230815/202308150125.9sKSupfw-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230815/202308150125.9sKSupfw-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/202308150125.9sKSupfw-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from kernel/crash_core.c:13: In file included from include/linux/kexec.h:19: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | 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] 560 | 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 kernel/crash_core.c:13: In file included from include/linux/kexec.h:19: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | 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 kernel/crash_core.c:13: In file included from include/linux/kexec.h:19: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __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] 594 | __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] 604 | __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] 692 | 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] 700 | 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] 708 | 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] 717 | 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] 726 | 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] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ In file included from kernel/crash_core.c:23: >> kernel/kexec_internal.h:11:54: warning: declaration of 'struct kexec_segment' will not be visible outside of this function [-Wvisibility] 11 | int kimage_load_segment(struct kimage *image, struct kexec_segment *segment); | ^ kernel/crash_core.c:321:40: warning: declaration of 'struct crash_mem' will not be visible outside of this function [-Wvisibility] 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:334:16: error: incomplete definition of type 'struct crash_mem' 334 | nr_phdr += mem->nr_ranges; | ~~~^ kernel/crash_core.c:321:40: note: forward declaration of 'struct crash_mem' 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:346:25: error: use of undeclared identifier 'ELF_CORE_HEADER_ALIGN' 346 | elf_sz = ALIGN(elf_sz, ELF_CORE_HEADER_ALIGN); | ^ kernel/crash_core.c:346:25: error: use of undeclared identifier 'ELF_CORE_HEADER_ALIGN' kernel/crash_core.c:396:21: error: incomplete definition of type 'struct crash_mem' 396 | for (i = 0; i < mem->nr_ranges; i++) { | ~~~^ kernel/crash_core.c:321:40: note: forward declaration of 'struct crash_mem' 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:397:15: error: incomplete definition of type 'struct crash_mem' 397 | mstart = mem->ranges[i].start; | ~~~^ kernel/crash_core.c:321:40: note: forward declaration of 'struct crash_mem' 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:398:13: error: incomplete definition of type 'struct crash_mem' 398 | mend = mem->ranges[i].end; | ~~~^ kernel/crash_core.c:321:40: note: forward declaration of 'struct crash_mem' 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:321:5: warning: no previous prototype for function 'crash_prepare_elf64_headers' [-Wmissing-prototypes] 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ kernel/crash_core.c:321:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 321 | int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, | ^ | static kernel/crash_core.c:420:36: warning: declaration of 'struct crash_mem' will not be visible outside of this function [-Wvisibility] 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:427:21: error: incomplete definition of type 'struct crash_mem' 427 | for (i = 0; i < mem->nr_ranges; i++) { | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:428:14: error: incomplete definition of type 'struct crash_mem' 428 | start = mem->ranges[i].start; | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:429:12: error: incomplete definition of type 'struct crash_mem' 429 | end = mem->ranges[i].end; | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:444:7: error: incomplete definition of type 'struct crash_mem' 444 | mem->ranges[i].start = 0; | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:445:7: error: incomplete definition of type 'struct crash_mem' 445 | mem->ranges[i].end = 0; | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:446:15: error: incomplete definition of type 'struct crash_mem' 446 | if (i < mem->nr_ranges - 1) { | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:448:24: error: incomplete definition of type 'struct crash_mem' 448 | for (j = i; j < mem->nr_ranges - 1; j++) { | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:449:9: error: incomplete definition of type 'struct crash_mem' 449 | mem->ranges[j].start = | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:450:10: error: incomplete definition of type 'struct crash_mem' 450 | mem->ranges[j+1].start; | ~~~^ kernel/crash_core.c:420:36: note: forward declaration of 'struct crash_mem' 420 | int crash_exclude_mem_range(struct crash_mem *mem, | ^ kernel/crash_core.c:451:9: error: incomplete definition of type 'struct crash_mem' 451 | mem->ranges[j].end = | ~~~^ vim +11 kernel/kexec_internal.h a43cac0d9dc207 Dave Young 2015-09-09 6 a43cac0d9dc207 Dave Young 2015-09-09 7 struct kimage *do_kimage_alloc_init(void); a43cac0d9dc207 Dave Young 2015-09-09 8 int sanity_check_segment_list(struct kimage *image); a43cac0d9dc207 Dave Young 2015-09-09 9 void kimage_free_page_list(struct list_head *list); a43cac0d9dc207 Dave Young 2015-09-09 10 void kimage_free(struct kimage *image); a43cac0d9dc207 Dave Young 2015-09-09 @11 int kimage_load_segment(struct kimage *image, struct kexec_segment *segment); a43cac0d9dc207 Dave Young 2015-09-09 12 void kimage_terminate(struct kimage *image); a43cac0d9dc207 Dave Young 2015-09-09 13 int kimage_is_destination_range(struct kimage *image, a43cac0d9dc207 Dave Young 2015-09-09 14 unsigned long start, unsigned long end); a43cac0d9dc207 Dave Young 2015-09-09 15 :::::: The code at line 11 was first introduced by commit :::::: a43cac0d9dc2073ff2245a171429ddbe1accece7 kexec: split kexec_file syscall code to kexec_file.c :::::: TO: Dave Young <dyoung@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
