tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e commit: 2a1b06dd3a17ac278494da3c15cac84684346d22 powerpc/fadump: process the crashdump by exporting it as /proc/vmcore date: 11 months ago config: powerpc64-randconfig-s032-20200808 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout 2a1b06dd3a17ac278494da3c15cac84684346d22 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) arch/powerpc/platforms/powernv/opal-fadump.c:37:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] boot_mem_dest_addr @@ got restricted __be64 const [usertype] dest @@ arch/powerpc/platforms/powernv/opal-fadump.c:37:41: sparse: expected unsigned long long [usertype] boot_mem_dest_addr arch/powerpc/platforms/powernv/opal-fadump.c:37:41: sparse: got restricted __be64 const [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:63:47: sparse: sparse: invalid assignment: += arch/powerpc/platforms/powernv/opal-fadump.c:63:47: sparse: left side has type unsigned long arch/powerpc/platforms/powernv/opal-fadump.c:63:47: sparse: right side has type restricted __be64 arch/powerpc/platforms/powernv/opal-fadump.c:70:46: sparse: got restricted __be64 const [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:105:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] src @@ got unsigned long long [assigned] [usertype] src_addr @@ arch/powerpc/platforms/powernv/opal-fadump.c:105:58: sparse: expected restricted __be64 [usertype] src arch/powerpc/platforms/powernv/opal-fadump.c:105:58: sparse: got unsigned long long [assigned] [usertype] src_addr arch/powerpc/platforms/powernv/opal-fadump.c:106:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] dest @@ got unsigned long long [assigned] [usertype] dest_addr @@ arch/powerpc/platforms/powernv/opal-fadump.c:106:58: sparse: expected restricted __be64 [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:106:58: sparse: got unsigned long long [assigned] [usertype] dest_addr arch/powerpc/platforms/powernv/opal-fadump.c:107:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] size @@ got int [assigned] cur_size @@ arch/powerpc/platforms/powernv/opal-fadump.c:107:58: sparse: expected restricted __be64 [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:107:58: sparse: got int [assigned] cur_size arch/powerpc/platforms/powernv/opal-fadump.c:119:53: sparse: sparse: restricted __be64 degrades to integer arch/powerpc/platforms/powernv/opal-fadump.c:171:56: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned long long [usertype] src @@ got restricted __be64 [usertype] src @@ arch/powerpc/platforms/powernv/opal-fadump.c:171:56: sparse: expected unsigned long long [usertype] src arch/powerpc/platforms/powernv/opal-fadump.c:171:56: sparse: got restricted __be64 [usertype] src arch/powerpc/platforms/powernv/opal-fadump.c:172:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned long long [usertype] dest @@ got restricted __be64 [usertype] dest @@ arch/powerpc/platforms/powernv/opal-fadump.c:172:56: sparse: expected unsigned long long [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:172:56: sparse: got restricted __be64 [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:173:56: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned long long [usertype] size @@ got restricted __be64 [usertype] size @@ arch/powerpc/platforms/powernv/opal-fadump.c:173:56: sparse: expected unsigned long long [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:173:56: sparse: got restricted __be64 [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:403:16: sparse: sparse: cast to restricted __be64 vim +70 arch/powerpc/platforms/powernv/opal-fadump.c 43 44 /* 45 * This function is called in the capture kernel to get configuration details 46 * from metadata setup by the first kernel. 47 */ 48 static void opal_fadump_get_config(struct fw_dump *fadump_conf, 49 const struct opal_fadump_mem_struct *fdm) 50 { 51 int i; 52 53 if (!fadump_conf->dump_active) 54 return; 55 56 fadump_conf->boot_memory_size = 0; 57 58 pr_debug("Boot memory regions:\n"); 59 for (i = 0; i < fdm->region_cnt; i++) { 60 pr_debug("\t%d. base: 0x%llx, size: 0x%llx\n", 61 (i + 1), fdm->rgn[i].src, fdm->rgn[i].size); 62 63 fadump_conf->boot_memory_size += fdm->rgn[i].size; 64 } 65 66 /* 67 * Start address of reserve dump area (permanent reservation) for 68 * re-registering FADump after dump capture. 69 */ 71 72 opal_fadump_update_config(fadump_conf, fdm); 73 } 74 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org