Hi Youling, kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master] [also build test WARNING on v6.17-rc3 next-20250825] [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/Youling-Tang/LoongArch-Add-struct-loongarch_image_header-for-kernel-image/20250820-140025 base: linus/master patch link: https://lore.kernel.org/r/20250820055700.24344-3-youling.tang%40linux.dev patch subject: [PATCH v2 2/5] LoongArch: Add kexec_file support config: loongarch-randconfig-r121-20250826 (https://download.01.org/0day-ci/archive/20250826/202508260914.bjz2yqws-...@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce: (https://download.01.org/0day-ci/archive/20250826/202508260914.bjz2yqws-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508260914.bjz2yqws-...@intel.com/ sparse warnings: (new ones prefixed by >>) >> arch/loongarch/kernel/kexec_efi.c:61:22: sparse: sparse: cast to restricted >> __le64 arch/loongarch/kernel/kexec_efi.c:62:23: sparse: sparse: cast to restricted __le64 vim +61 arch/loongarch/kernel/kexec_efi.c 37 38 static void *efi_kexec_load(struct kimage *image, 39 char *kernel, unsigned long kernel_len, 40 char *initrd, unsigned long initrd_len, 41 char *cmdline, unsigned long cmdline_len) 42 { 43 struct loongarch_image_header *h; 44 struct kexec_buf kbuf; 45 unsigned long text_offset, kernel_segment_number; 46 struct kexec_segment *kernel_segment; 47 int ret; 48 49 h = (struct loongarch_image_header *)kernel; 50 if (!h->image_size) 51 return ERR_PTR(-EINVAL); 52 53 /* Load the kernel */ 54 kbuf.image = image; 55 kbuf.buf_max = ULONG_MAX; 56 kbuf.top_down = false; 57 58 kbuf.buffer = kernel; 59 kbuf.bufsz = kernel_len; 60 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN; > 61 kbuf.memsz = le64_to_cpu(h->image_size); 62 text_offset = le64_to_cpu(h->text_offset); 63 kbuf.buf_min = text_offset; 64 kbuf.buf_align = SZ_2M; 65 66 kernel_segment_number = image->nr_segments; 67 68 /* 69 * The location of the kernel segment may make it impossible to satisfy 70 * the other segment requirements, so we try repeatedly to find a 71 * location that will work. 72 */ 73 while ((ret = kexec_add_buffer(&kbuf)) == 0) { 74 /* Try to load additional data */ 75 kernel_segment = &image->segment[kernel_segment_number]; 76 ret = load_other_segments(image, kernel_segment->mem, 77 kernel_segment->memsz, initrd, 78 initrd_len, cmdline, cmdline_len); 79 if (!ret) 80 break; 81 82 /* 83 * We couldn't find space for the other segments; erase the 84 * kernel segment and try the next available hole. 85 */ 86 image->nr_segments -= 1; 87 kbuf.buf_min = kernel_segment->mem + kernel_segment->memsz; 88 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN; 89 } 90 91 if (ret) { 92 pr_err("Could not find any suitable kernel location!"); 93 return ERR_PTR(ret); 94 } 95 96 kernel_segment = &image->segment[kernel_segment_number]; 97 98 /* Make sure the second kernel jumps to the correct "kernel_entry". */ 99 image->start = kernel_segment->mem + h->kernel_entry - text_offset; 100 101 kexec_dprintk("Loaded kernel at 0x%lx bufsz=0x%lx memsz=0x%lx\n", 102 kernel_segment->mem, kbuf.bufsz, 103 kernel_segment->memsz); 104 105 return NULL; 106 } 107 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
