Hi Eric, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable head: dafc95d811f426078ef86cbbbb995055280e415e commit: e92bee18ff7a05e2f59f4135d10067dcefb3e861 [9/19] arm/kexec: refactor for kernel/Kconfig.kexec config: arm-randconfig-r003-20230706 (https://download.01.org/0day-ci/archive/20230706/202307060915.VgX6V8cC-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230706/202307060915.VgX6V8cC-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/202307060915.VgX6V8cC-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): kernel/kexec.c:45:21: error: invalid use of undefined type 'struct kimage' 45 | memcpy(image->segment, segments, nr_segments * sizeof(*segments)); | ^~ include/linux/fortify-string.h:639:40: note: in definition of macro '__fortify_memcpy_chk' 639 | const size_t __p_size_field = (p_size_field); \ | ^~~~~~~~~~~~ include/linux/fortify-string.h:695:17: note: in expansion of macro '__member_size' 695 | __member_size(p), __member_size(q), \ | ^~~~~~~~~~~~~ kernel/kexec.c:45:9: note: in expansion of macro 'memcpy' 45 | memcpy(image->segment, segments, nr_segments * sizeof(*segments)); | ^~~~~~ kernel/kexec.c:45:21: error: invalid use of undefined type 'struct kimage' 45 | memcpy(image->segment, segments, nr_segments * sizeof(*segments)); | ^~ include/linux/fortify-string.h:648:27: note: in definition of macro '__fortify_memcpy_chk' 648 | __underlying_##op(p, q, __fortify_size); \ | ^ kernel/kexec.c:45:9: note: in expansion of macro 'memcpy' 45 | memcpy(image->segment, segments, nr_segments * sizeof(*segments)); | ^~~~~~ kernel/kexec.c:49:22: error: invalid use of undefined type 'struct kimage' 49 | image->control_page = crashk_res.start; | ^~ kernel/kexec.c:50:22: error: invalid use of undefined type 'struct kimage' 50 | image->type = KEXEC_TYPE_CRASH; | ^~ kernel/kexec.c:50:31: error: 'KEXEC_TYPE_CRASH' undeclared (first use in this function); did you mean 'KEXEC_ON_CRASH'? 50 | image->type = KEXEC_TYPE_CRASH; | ^~~~~~~~~~~~~~~~ | KEXEC_ON_CRASH kernel/kexec.c:50:31: note: each undeclared identifier is reported only once for each function it appears in kernel/kexec.c:63:14: error: invalid use of undefined type 'struct kimage' 63 | image->control_code_page = kimage_alloc_control_pages(image, | ^~ kernel/kexec.c:63:36: error: implicit declaration of function 'kimage_alloc_control_pages' [-Werror=implicit-function-declaration] 63 | image->control_code_page = kimage_alloc_control_pages(image, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:64:54: error: 'KEXEC_CONTROL_PAGE_SIZE' undeclared (first use in this function) 64 | get_order(KEXEC_CONTROL_PAGE_SIZE)); | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:65:19: error: invalid use of undefined type 'struct kimage' 65 | if (!image->control_code_page) { | ^~ kernel/kexec.c:71:22: error: invalid use of undefined type 'struct kimage' 71 | image->swap_page = kimage_alloc_control_pages(image, 0); | ^~ kernel/kexec.c:72:27: error: invalid use of undefined type 'struct kimage' 72 | if (!image->swap_page) { | ^~ kernel/kexec.c:81:37: error: invalid use of undefined type 'struct kimage' 81 | kimage_free_page_list(&image->control_pages); | ^~ kernel/kexec.c: In function 'do_kexec_load': kernel/kexec.c:103:31: error: 'kexec_crash_image' undeclared (first use in this function); did you mean 'kexec_crash_loaded'? 103 | dest_image = &kexec_crash_image; | ^~~~~~~~~~~~~~~~~ | kexec_crash_loaded kernel/kexec.c:105:25: error: implicit declaration of function 'arch_kexec_unprotect_crashkres' [-Werror=implicit-function-declaration] 105 | arch_kexec_unprotect_crashkres(); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:107:31: error: 'kexec_image' undeclared (first use in this function) 107 | dest_image = &kexec_image; | ^~~~~~~~~~~ In file included from include/linux/atomic.h:82, from include/asm-generic/bitops/lock.h:5, from arch/arm/include/asm/bitops.h:245, from include/linux/bitops.h:68, from include/linux/log2.h:12, from include/asm-generic/div64.h:55, from arch/arm/include/asm/div64.h:107, from include/linux/math.h:6, from include/linux/math64.h:6, from include/linux/time64.h:5, from include/linux/restart_block.h:10, from include/linux/thread_info.h:14, from include/asm-generic/preempt.h:5, from ./arch/arm/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:56: include/linux/atomic/atomic-instrumented.h:4715:55: error: invalid type argument of unary '*' (have 'int') 4715 | instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \ | ^~~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ include/linux/atomic/atomic-instrumented.h:4715:38: warning: passing argument 1 of 'instrument_atomic_read_write' makes pointer from integer without a cast [-Wint-conversion] 4715 | instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \ | ^~~~~~~~ | | | int kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ In file included from include/linux/atomic/atomic-instrumented.h:17: include/linux/instrumented.h:94:79: note: expected 'const volatile void *' but argument is of type 'int' 94 | static __always_inline void instrument_atomic_read_write(const volatile void *v, size_t size) | ~~~~~~~~~~~~~~~~~~~~~^ In file included from arch/arm/include/asm/atomic.h:16, from include/linux/atomic.h:7: >> arch/arm/include/asm/cmpxchg.h:119:21: error: invalid type argument of unary '*' (have 'int') 119 | (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \ | ^~~~~~ include/linux/atomic.h:73:16: note: in expansion of macro 'arch_xchg_relaxed' 73 | typeof(op##_relaxed(args)) __ret; \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ arch/arm/include/asm/cmpxchg.h:120:48: error: invalid type argument of unary '*' (have 'int') 120 | sizeof(*(ptr))); \ | ^~~~~~ include/linux/atomic.h:73:16: note: in expansion of macro 'arch_xchg_relaxed' 73 | typeof(op##_relaxed(args)) __ret; \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ >> arch/arm/include/asm/cmpxchg.h:119:61: warning: passing argument 2 of '__arch_xchg' makes pointer from integer without a cast [-Wint-conversion] 119 | (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \ | ^~~~~ | | | int include/linux/atomic.h:73:16: note: in expansion of macro 'arch_xchg_relaxed' 73 | typeof(op##_relaxed(args)) __ret; \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ arch/arm/include/asm/cmpxchg.h:29:45: note: expected 'volatile void *' but argument is of type 'int' 29 | __arch_xchg(unsigned long x, volatile void *ptr, int size) | ~~~~~~~~~~~~~~~^~~ >> arch/arm/include/asm/cmpxchg.h:119:21: error: invalid type argument of unary '*' (have 'int') 119 | (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \ | ^~~~~~ include/linux/atomic.h:75:17: note: in expansion of macro 'arch_xchg_relaxed' 75 | __ret = op##_relaxed(args); \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ arch/arm/include/asm/cmpxchg.h:120:48: error: invalid type argument of unary '*' (have 'int') 120 | sizeof(*(ptr))); \ | ^~~~~~ include/linux/atomic.h:75:17: note: in expansion of macro 'arch_xchg_relaxed' 75 | __ret = op##_relaxed(args); \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ >> arch/arm/include/asm/cmpxchg.h:119:61: warning: passing argument 2 of '__arch_xchg' makes pointer from integer without a cast [-Wint-conversion] 119 | (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \ | ^~~~~ | | | int include/linux/atomic.h:75:17: note: in expansion of macro 'arch_xchg_relaxed' 75 | __ret = op##_relaxed(args); \ | ^~ include/linux/atomic/atomic-arch-fallback.h:15:9: note: in expansion of macro '__atomic_op_fence' 15 | __atomic_op_fence(arch_xchg, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:4716:9: note: in expansion of macro 'raw_xchg' 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ^~~~~~~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ arch/arm/include/asm/cmpxchg.h:29:45: note: expected 'volatile void *' but argument is of type 'int' 29 | __arch_xchg(unsigned long x, volatile void *ptr, int size) | ~~~~~~~~~~~~~~~^~~ >> include/linux/atomic/atomic-instrumented.h:4712:2: warning: passing argument 1 of 'kimage_free' makes pointer from integer without a cast [-Wint-conversion] 4712 | ({ \ | ~^~~ | | | int 4713 | typeof(ptr) __ai_ptr = (ptr); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4714 | kcsan_mb(); \ | ~~~~~~~~~~~~~ 4715 | instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4716 | raw_xchg(__ai_ptr, __VA_ARGS__); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4717 | }) | ~~ kernel/kexec.c:122:29: note: in expansion of macro 'xchg' 122 | kimage_free(xchg(&kexec_crash_image, NULL)); | ^~~~ In file included from kernel/kexec.c:20: kernel/kexec_internal.h:10:33: note: expected 'struct kimage *' but argument is of type 'int' 10 | void kimage_free(struct kimage *image); | ~~~~~~~~~~~~~~~^~~~~ kernel/kexec.c:130:22: error: invalid use of undefined type 'struct kimage' 130 | image->preserve_context = 1; | ^~ kernel/kexec.c:132:15: error: implicit declaration of function 'machine_kexec_prepare' [-Werror=implicit-function-declaration] 132 | ret = machine_kexec_prepare(image); | ^~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:140:15: error: implicit declaration of function 'kimage_crash_copy_vmcoreinfo'; did you mean 'arch_crash_save_vmcoreinfo'? [-Werror=implicit-function-declaration] 140 | ret = kimage_crash_copy_vmcoreinfo(image); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ | arch_crash_save_vmcoreinfo kernel/kexec.c:145:56: error: invalid use of undefined type 'struct kimage' 145 | ret = kimage_load_segment(image, &image->segment[i]); | ^~ kernel/kexec.c:152:15: error: implicit declaration of function 'machine_kexec_post_load' [-Werror=implicit-function-declaration] 152 | ret = machine_kexec_post_load(image); | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:161:17: error: implicit declaration of function 'arch_kexec_protect_crashkres' [-Werror=implicit-function-declaration] 161 | arch_kexec_protect_crashkres(); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/kexec.c: In function 'kexec_load_check': kernel/kexec.c:194:26: error: 'KEXEC_TYPE_CRASH' undeclared (first use in this function); did you mean 'KEXEC_ON_CRASH'? 194 | KEXEC_TYPE_CRASH : KEXEC_TYPE_DEFAULT; | ^~~~~~~~~~~~~~~~ | KEXEC_ON_CRASH kernel/kexec.c:194:45: error: 'KEXEC_TYPE_DEFAULT' undeclared (first use in this function); did you mean 'KEXEC_ARCH_DEFAULT'? 194 | KEXEC_TYPE_CRASH : KEXEC_TYPE_DEFAULT; | ^~~~~~~~~~~~~~~~~~ | KEXEC_ARCH_DEFAULT kernel/kexec.c:198:14: error: implicit declaration of function 'kexec_load_permitted' [-Werror=implicit-function-declaration] 198 | if (!kexec_load_permitted(image_type)) | ^~~~~~~~~~~~~~~~~~~~ kernel/kexec.c:218:22: error: 'KEXEC_FLAGS' undeclared (first use in this function); did you mean 'QC_FLAGS'? 218 | if ((flags & KEXEC_FLAGS) != (flags & ~KEXEC_ARCH_MASK)) | ^~~~~~~~~~~ | QC_FLAGS kernel/kexec.c: In function '__do_sys_kexec_load': kernel/kexec.c:241:43: error: 'KEXEC_ARCH' undeclared (first use in this function); did you mean 'KEXEC_ARCH_SH'? 241 | if (((flags & KEXEC_ARCH_MASK) != KEXEC_ARCH) && | ^~~~~~~~~~ | KEXEC_ARCH_SH kernel/kexec.c:245:73: error: invalid use of undefined type 'struct kexec_segment' 245 | ksegments = memdup_user(segments, nr_segments * sizeof(ksegments[0])); | ^ kernel/kexec.c:245:63: error: invalid application of 'sizeof' to incomplete type 'struct kexec_segment' 245 | ksegments = memdup_user(segments, nr_segments * sizeof(ksegments[0])); | ^ cc1: some warnings being treated as errors -- arch/arm/kernel/setup.c: In function 'reserve_crashkernel': >> arch/arm/kernel/setup.c:1034:63: error: 'SECTION_SIZE' undeclared (first use in this function); did you mean 'SUBSECTION_SIZE'? 1034 | start = memblock_phys_alloc_range(crash_size, SECTION_SIZE, | ^~~~~~~~~~~~ | SUBSECTION_SIZE arch/arm/kernel/setup.c:1034:63: note: each undeclared identifier is reported only once for each function it appears in In file included from arch/arm/include/asm/efi.h:12, from arch/arm/kernel/setup.c:37: arch/arm/include/asm/fixmap.h: At top level: arch/arm/include/asm/fixmap.h:39:35: warning: '__end_of_fixed_addresses' defined but not used [-Wunused-const-variable=] 39 | static const enum fixed_addresses __end_of_fixed_addresses = | ^~~~~~~~~~~~~~~~~~~~~~~~ -- >> arch/arm/kernel/machine_kexec.c:33:34: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration 33 | int machine_kexec_prepare(struct kimage *image) | ^~~~~~ >> arch/arm/kernel/machine_kexec.c:33:5: warning: no previous prototype for 'machine_kexec_prepare' [-Wmissing-prototypes] 33 | int machine_kexec_prepare(struct kimage *image) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c: In function 'machine_kexec_prepare': >> arch/arm/kernel/machine_kexec.c:39:14: error: invalid use of undefined type 'struct kimage' 39 | image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET | ^~ arch/arm/kernel/machine_kexec.c:39:38: error: invalid use of undefined type 'struct kimage' 39 | image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET | ^~ >> arch/arm/kernel/machine_kexec.c:39:48: error: 'KEXEC_ARM_ZIMAGE_OFFSET' undeclared (first use in this function) 39 | image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET | ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c:39:48: note: each undeclared identifier is reported only once for each function it appears in >> arch/arm/kernel/machine_kexec.c:40:40: error: 'KEXEC_ARM_ATAGS_OFFSET' undeclared (first use in this function) 40 | + KEXEC_ARM_ATAGS_OFFSET; | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c:55:30: error: invalid use of undefined type 'struct kimage' 55 | for (i = 0; i < image->nr_segments; i++) { | ^~ arch/arm/kernel/machine_kexec.c:56:41: error: invalid use of undefined type 'struct kimage' 56 | current_segment = &image->segment[i]; | ^~ >> arch/arm/kernel/machine_kexec.c:58:77: error: invalid use of undefined type 'struct kexec_segment' 58 | if (!memblock_is_region_memory(idmap_to_phys(current_segment->mem), | ^~ arch/arm/kernel/machine_kexec.c:59:63: error: invalid use of undefined type 'struct kexec_segment' 59 | current_segment->memsz)) | ^~ In file included from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/rcuwait.h:6, from include/linux/percpu-rwsem.h:7, from include/linux/fs.h:33, from include/linux/huge_mm.h:8, from include/linux/mm.h:988, from arch/arm/kernel/machine_kexec.c:6: arch/arm/kernel/machine_kexec.c:62:64: error: invalid use of undefined type 'struct kexec_segment' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~ arch/arm/include/asm/uaccess.h:264:51: note: in definition of macro '__get_user_err' 264 | unsigned long __gu_addr = (unsigned long)(ptr); \ | ^~~ arch/arm/include/asm/uaccess.h:229:25: note: in expansion of macro '__get_user' 229 | #define get_user(x, p) __get_user(x, p) | ^~~~~~~~~~ arch/arm/kernel/machine_kexec.c:62:23: note: in expansion of macro 'get_user' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~~~~~~~ arch/arm/kernel/machine_kexec.c:62:64: error: invalid use of undefined type 'struct kexec_segment' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~ arch/arm/include/asm/uaccess.h:270:26: note: in definition of macro '__get_user_err' 270 | switch (sizeof(*(ptr))) { \ | ^~~ arch/arm/include/asm/uaccess.h:229:25: note: in expansion of macro '__get_user' 229 | #define get_user(x, p) __get_user(x, p) | ^~~~~~~~~~ arch/arm/kernel/machine_kexec.c:62:23: note: in expansion of macro 'get_user' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~~~~~~~ arch/arm/kernel/machine_kexec.c:62:64: error: invalid use of undefined type 'struct kexec_segment' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~ arch/arm/include/asm/uaccess.h:277:29: note: in definition of macro '__get_user_err' 277 | (x) = (__typeof__(*(ptr)))__gu_val; \ | ^~~ arch/arm/include/asm/uaccess.h:229:25: note: in expansion of macro '__get_user' 229 | #define get_user(x, p) __get_user(x, p) | ^~~~~~~~~~ arch/arm/kernel/machine_kexec.c:62:23: note: in expansion of macro 'get_user' 62 | err = get_user(header, (__be32*)current_segment->buf); | ^~~~~~~~ arch/arm/kernel/machine_kexec.c:67:30: error: invalid use of undefined type 'struct kimage' 67 | image->arch.kernel_r2 = current_segment->mem; | ^~ arch/arm/kernel/machine_kexec.c:67:64: error: invalid use of undefined type 'struct kexec_segment' 67 | image->arch.kernel_r2 = current_segment->mem; | ^~ arch/arm/kernel/machine_kexec.c: At top level: arch/arm/kernel/machine_kexec.c:72:35: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration 72 | void machine_kexec_cleanup(struct kimage *image) | ^~~~~~ >> arch/arm/kernel/machine_kexec.c:72:6: warning: no previous prototype for 'machine_kexec_cleanup' [-Wmissing-prototypes] 72 | void machine_kexec_cleanup(struct kimage *image) | ^~~~~~~~~~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c: In function 'machine_crash_nonpanic_core': >> arch/arm/kernel/machine_kexec.c:82:9: error: implicit declaration of function 'crash_setup_regs' [-Werror=implicit-function-declaration] 82 | crash_setup_regs(®s, get_irq_regs()); | ^~~~~~~~~~~~~~~~ >> arch/arm/kernel/machine_kexec.c:85:9: error: implicit declaration of function 'crash_save_cpu' [-Werror=implicit-function-declaration] 85 | crash_save_cpu(®s, smp_processor_id()); | ^~~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c: At top level: arch/arm/kernel/machine_kexec.c:152:27: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration 152 | void machine_kexec(struct kimage *image) | ^~~~~~ >> arch/arm/kernel/machine_kexec.c:152:6: warning: no previous prototype for 'machine_kexec' [-Wmissing-prototypes] 152 | void machine_kexec(struct kimage *image) | ^~~~~~~~~~~~~ arch/arm/kernel/machine_kexec.c: In function 'machine_kexec': arch/arm/kernel/machine_kexec.c:167:26: error: invalid use of undefined type 'struct kimage' 167 | page_list = image->head & PAGE_MASK; | ^~ arch/arm/kernel/machine_kexec.c:169:48: error: invalid use of undefined type 'struct kimage' 169 | reboot_code_buffer = page_address(image->control_code_page); | ^~ include/linux/mm.h:2144:48: note: in definition of macro 'page_address' 2144 | #define page_address(page) lowmem_page_address(page) | ^~~~ arch/arm/kernel/machine_kexec.c:177:42: error: invalid use of undefined type 'struct kimage' 177 | data->kexec_start_address = image->start; | ^~ arch/arm/kernel/machine_kexec.c:180:31: error: invalid use of undefined type 'struct kimage' 180 | data->kexec_r2 = image->arch.kernel_r2; | ^~ cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for KEXEC Depends on [n]: ARCH_SUPPORTS_KEXEC [=n] Selected by [y]: - CRASH_DUMP [=y] && ARCH_SUPPORTS_CRASH_DUMP [=y] vim +119 arch/arm/include/asm/cmpxchg.h 9f97da78bf0182 David Howells 2012-03-28 117 fc63a6e08a8c97 Mark Rutland 2021-05-25 118 #define arch_xchg_relaxed(ptr, x) ({ \ 068550631fbe0b Andrzej Hajda 2023-01-18 @119 (__typeof__(*(ptr)))__arch_xchg((unsigned long)(x), (ptr), \ e001bbae7147b1 Russell King 2015-05-26 120 sizeof(*(ptr))); \ e001bbae7147b1 Russell King 2015-05-26 121 }) 9f97da78bf0182 David Howells 2012-03-28 122 :::::: The code at line 119 was first introduced by commit :::::: 068550631fbe0b7fb41625cea6fb204fdc8cb224 locking/arch: Rename all internal __xchg() names to __arch_xchg() :::::: TO: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> :::::: CC: Ingo Molnar <mingo@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
