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X-CSE-ConnectionGUID: xQ+PC/H0SMSiv4FNa33iEA== X-CSE-MsgGUID: I+Qoh6DtQY6DPZ+0+IH+Rw== X-IronPort-AV: E=McAfee;i="6800,10657,11654"; a="94014698" X-IronPort-AV: E=Sophos;i="6.21,180,1763452800"; d="scan'208";a="94014698" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Dec 2025 06:36:12 -0800 X-CSE-ConnectionGUID: ytWJBh5gQ0SgHankNUyK4Q== X-CSE-MsgGUID: Lzx5E9MqRXeniwUYM6lSQg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,180,1763452800"; d="scan'208";a="200581167" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by orviesa008.jf.intel.com with ESMTP; 27 Dec 2025 06:36:08 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vZVOn-000000005sn-1JCs; Sat, 27 Dec 2025 14:36:05 +0000 Date: Sat, 27 Dec 2025 22:35:11 +0800 From: kernel test robot To: Coiby Xu , kexec@lists.infradead.org, linuxppc-dev@lists.ozlabs.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Thomas Staudt , Arnaud Lefebvre , Baoquan he , Dave Young , Kairui Song , Pingfan Liu , Andrew Morton , Linux Memory Management List , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] powerpc/kdump: pass dm-crypt keys to kdump kernel Message-ID: <202512272218.ghBaSjzO-lkp@intel.com> References: <20251226140636.1378505-1-coxu@redhat.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251226140636.1378505-1-coxu@redhat.com> Hi Coiby, kernel test robot noticed the following build errors: [auto build test ERROR on ccd1cdca5cd433c8a5dff78b69a79b31d9b77ee1] url: https://github.com/intel-lab-lkp/linux/commits/Coiby-Xu/powerpc-kdump-pass-dm-crypt-keys-to-kdump-kernel/20251226-220726 base: ccd1cdca5cd433c8a5dff78b69a79b31d9b77ee1 patch link: https://lore.kernel.org/r/20251226140636.1378505-1-coxu%40redhat.com patch subject: [PATCH] powerpc/kdump: pass dm-crypt keys to kdump kernel config: powerpc64-randconfig-001-20251227 (https://download.01.org/0day-ci/archive/20251227/202512272218.ghBaSjzO-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4ef602d446057dabf5f61fb221669ecbeda49279) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251227/202512272218.ghBaSjzO-lkp@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 | Closes: https://lore.kernel.org/oe-kbuild-all/202512272218.ghBaSjzO-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/powerpc/kexec/elf_64.c:95:9: error: call to undeclared function 'crash_load_dm_crypt_keys'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 95 | ret = crash_load_dm_crypt_keys(image); | ^ 1 error generated. vim +/crash_load_dm_crypt_keys +95 arch/powerpc/kexec/elf_64.c 27 28 static void *elf64_load(struct kimage *image, char *kernel_buf, 29 unsigned long kernel_len, char *initrd, 30 unsigned long initrd_len, char *cmdline, 31 unsigned long cmdline_len) 32 { 33 int ret; 34 unsigned long kernel_load_addr; 35 unsigned long initrd_load_addr = 0, fdt_load_addr; 36 void *fdt; 37 const void *slave_code; 38 struct elfhdr ehdr; 39 char *modified_cmdline = NULL; 40 struct crash_mem *rmem = NULL; 41 struct kexec_elf_info elf_info; 42 struct kexec_buf kbuf = { .image = image, .buf_min = 0, 43 .buf_max = ppc64_rma_size }; 44 struct kexec_buf pbuf = { .image = image, .buf_min = 0, 45 .buf_max = ppc64_rma_size, .top_down = true, 46 .mem = KEXEC_BUF_MEM_UNKNOWN }; 47 48 ret = kexec_build_elf_info(kernel_buf, kernel_len, &ehdr, &elf_info); 49 if (ret) 50 return ERR_PTR(ret); 51 52 if (IS_ENABLED(CONFIG_CRASH_DUMP) && image->type == KEXEC_TYPE_CRASH) { 53 /* min & max buffer values for kdump case */ 54 kbuf.buf_min = pbuf.buf_min = crashk_res.start; 55 kbuf.buf_max = pbuf.buf_max = 56 ((crashk_res.end < ppc64_rma_size) ? 57 crashk_res.end : (ppc64_rma_size - 1)); 58 } 59 60 ret = kexec_elf_load(image, &ehdr, &elf_info, &kbuf, &kernel_load_addr); 61 if (ret) 62 goto out; 63 64 kexec_dprintk("Loaded the kernel at 0x%lx\n", kernel_load_addr); 65 66 ret = kexec_load_purgatory(image, &pbuf); 67 if (ret) { 68 pr_err("Loading purgatory failed.\n"); 69 goto out; 70 } 71 72 kexec_dprintk("Loaded purgatory at 0x%lx\n", pbuf.mem); 73 74 /* Load additional segments needed for panic kernel */ 75 if (IS_ENABLED(CONFIG_CRASH_DUMP) && image->type == KEXEC_TYPE_CRASH) { 76 ret = load_crashdump_segments_ppc64(image, &kbuf); 77 if (ret) { 78 pr_err("Failed to load kdump kernel segments\n"); 79 goto out; 80 } 81 82 /* Setup cmdline for kdump kernel case */ 83 modified_cmdline = setup_kdump_cmdline(image, cmdline, 84 cmdline_len, 85 "elfcorehdr", 86 image->elf_load_addr); 87 if (!modified_cmdline) { 88 pr_err("Setting up cmdline for kdump kernel failed\n"); 89 ret = -EINVAL; 90 goto out; 91 } 92 cmdline = modified_cmdline; 93 cmdline_len = strlen(cmdline) + 1; 94 > 95 ret = crash_load_dm_crypt_keys(image); 96 if (ret == -ENOENT) { 97 kexec_dprintk("No dm crypt key to load\n"); 98 } else if (ret) { 99 pr_err("Failed to load dm crypt keys\n"); 100 return ERR_PTR(ret); 101 } 102 103 if (image->dm_crypt_keys_addr != 0) { 104 modified_cmdline = setup_kdump_cmdline(image, cmdline, 105 cmdline_len, 106 "dmcryptkeys", 107 image->dm_crypt_keys_addr); 108 if (!modified_cmdline) { 109 pr_err("Setting up cmdline for kdump kernel failed\n"); 110 ret = -EINVAL; 111 goto out; 112 } 113 cmdline = modified_cmdline; 114 } 115 } 116 117 if (initrd != NULL) { 118 kbuf.buffer = initrd; 119 kbuf.bufsz = kbuf.memsz = initrd_len; 120 kbuf.buf_align = PAGE_SIZE; 121 kbuf.top_down = false; 122 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN; 123 ret = kexec_add_buffer(&kbuf); 124 if (ret) 125 goto out; 126 initrd_load_addr = kbuf.mem; 127 128 kexec_dprintk("Loaded initrd at 0x%lx\n", initrd_load_addr); 129 } 130 131 ret = get_reserved_memory_ranges(&rmem); 132 if (ret) 133 goto out; 134 135 fdt = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr, 136 initrd_len, cmdline, 137 kexec_extra_fdt_size_ppc64(image, rmem)); 138 if (!fdt) { 139 pr_err("Error setting up the new device tree.\n"); 140 ret = -EINVAL; 141 goto out; 142 } 143 144 ret = setup_new_fdt_ppc64(image, fdt, rmem); 145 if (ret) 146 goto out_free_fdt; 147 148 if (!IS_ENABLED(CONFIG_CRASH_HOTPLUG) || image->type != KEXEC_TYPE_CRASH) 149 fdt_pack(fdt); 150 151 kbuf.buffer = fdt; 152 kbuf.bufsz = kbuf.memsz = fdt_totalsize(fdt); 153 kbuf.buf_align = PAGE_SIZE; 154 kbuf.top_down = true; 155 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN; 156 ret = kexec_add_buffer(&kbuf); 157 if (ret) 158 goto out_free_fdt; 159 160 /* FDT will be freed in arch_kimage_file_post_load_cleanup */ 161 image->arch.fdt = fdt; 162 163 fdt_load_addr = kbuf.mem; 164 165 kexec_dprintk("Loaded device tree at 0x%lx\n", fdt_load_addr); 166 167 slave_code = elf_info.buffer + elf_info.proghdrs[0].p_offset; 168 ret = setup_purgatory_ppc64(image, slave_code, fdt, kernel_load_addr, 169 fdt_load_addr); 170 if (ret) 171 pr_err("Error setting up the purgatory.\n"); 172 173 goto out; 174 175 out_free_fdt: 176 kvfree(fdt); 177 out: 178 kfree(rmem); 179 kfree(modified_cmdline); 180 kexec_free_elf_info(&elf_info); 181 182 return ret ? ERR_PTR(ret) : NULL; 183 } 184 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki