Hi Christophe, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4a87b197c1da6b16608d5110709e0b3308e25dcd commit: 65e701b2d2a8593c44c8855aee2e087be7e11e75 powerpc/ptdump: drop non vital #ifdefs date: 10 months ago :::::: branch date: 3 hours ago :::::: commit date: 10 months ago config: powerpc64-randconfig-c021-20200614 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): arch/powerpc/mm/ptdump/hashpagetable.c: In function 'pseries_find': 262 | if (lpar_rc != H_SUCCESS) | ^~~~~~~~~ arch/powerpc/mm/ptdump/hashpagetable.c:262:18: note: each undeclared identifier is reported only once for each function it appears in # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git remote update linus git checkout 65e701b2d2a8593c44c8855aee2e087be7e11e75 vim +/H_SUCCESS +262 arch/powerpc/mm/ptdump/hashpagetable.c 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 239 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 240 static int pseries_find(unsigned long ea, int psize, bool primary, u64 *v, u64 *r) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 241 { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 242 struct hash_pte ptes[4]; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 243 unsigned long vsid, vpn, hash, hpte_group, want_v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 244 int i, j, ssize = mmu_kernel_ssize; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 245 long lpar_rc = 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 246 unsigned long shift = mmu_psize_defs[psize].shift; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 247 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 248 /* calculate hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 249 vsid = get_kernel_vsid(ea, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 250 vpn = hpt_vpn(ea, vsid, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 251 hash = hpt_hash(vpn, shift, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 252 want_v = hpte_encode_avpn(vpn, psize, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 253 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 254 /* to check in the secondary hash table, we invert the hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 255 if (!primary) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 256 hash = ~hash; 1531cff44b5bb3 arch/powerpc/mm/dump_hashpagetable.c Aneesh Kumar K.V 2018-06-29 257 hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 258 /* see if we can find an entry in the hpte with this hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 259 for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 260 lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 261 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 @262 if (lpar_rc != H_SUCCESS) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 263 continue; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 264 for (j = 0; j < 4; j++) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 265 if (HPTE_V_COMPARE(ptes[j].v, want_v) && 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 266 (ptes[j].v & HPTE_V_VALID)) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 267 /* HPTE matches */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 268 *v = ptes[j].v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 269 *r = ptes[j].r; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 270 return 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 271 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 272 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 273 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 274 return -1; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 275 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 276 :::::: The code at line 262 was first introduced by commit :::::: 1515ab932156257afd8a5864506dab80f63ff38b powerpc/mm: Dump hash table :::::: TO: Rashmica Gupta <rashmicy(a)gmail.com&gt; :::::: CC: Michael Ellerman <mpe(a)ellerman.id.au&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org