tree: https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git topic-zol-remove head: 79f0a95b85a9af0927252156615ee3a14c2dd8de commit: 171f761e689641b34c37d1e18ea2cd7905310267 [13/23] ARC: pt_regs: remove ZOL config: arc-allyesconfig (attached as .config) compiler: arc-elf-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 git checkout 171f761e689641b34c37d1e18ea2cd7905310267 # save the attached .config to linux build tree GCC_VERSION=9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arch/arc/kernel/kgdb.c: In function 'to_gdb_regs': 30 | gdb_regs[_LP_COUNT] = kernel_regs->lp_count; | ^~ 31 | gdb_regs[_LP_END] = kernel_regs->lp_end; | ^~ 32 | gdb_regs[_LP_START] = kernel_regs->lp_start; | ^~ arch/arc/kernel/kgdb.c: In function 'from_gdb_regs': arch/arc/kernel/kgdb.c:50:13: error: 'struct pt_regs' has no member named 'lp_count' 50 | kernel_regs->lp_count = gdb_regs[_LP_COUNT]; | ^~ arch/arc/kernel/kgdb.c:51:13: error: 'struct pt_regs' has no member named 'lp_end' 51 | kernel_regs->lp_end = gdb_regs[_LP_END]; | ^~ arch/arc/kernel/kgdb.c:52:13: error: 'struct pt_regs' has no member named 'lp_start' 52 | kernel_regs->lp_start = gdb_regs[_LP_START]; | ^~ arch/arc/kernel/kgdb.c: In function 'kgdb_arch_handle_exception': arch/arc/kernel/kgdb.c:141:6: warning: this statement may fall through [-Wimplicit-fallthrough=] 141 | if (kgdb_hex2long(&ptr, &addr)) | ^ arch/arc/kernel/kgdb.c:144:2: note: here 144 | case 'D': | ^~~~ -- arch/arc/kernel/disasm.c: In function 'disasm_next_pc': 527 | if (!(regs->status32 & STATUS32_L) && (*next_pc == regs->lp_end) | ^~ 528 | && (regs->lp_count > 1)) { | ^~ 529 | *next_pc = regs->lp_start; | ^~ vim +30 arch/arc/kernel/kgdb.c f46121bd26d7957 Mischa Jonker 2013-01-18 13 f46121bd26d7957 Mischa Jonker 2013-01-18 14 static void to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *kernel_regs, f46121bd26d7957 Mischa Jonker 2013-01-18 15 struct callee_regs *cregs) f46121bd26d7957 Mischa Jonker 2013-01-18 16 { f46121bd26d7957 Mischa Jonker 2013-01-18 17 int regno; f46121bd26d7957 Mischa Jonker 2013-01-18 18 f46121bd26d7957 Mischa Jonker 2013-01-18 19 for (regno = 0; regno <= 26; regno++) f46121bd26d7957 Mischa Jonker 2013-01-18 20 gdb_regs[_R0 + regno] = get_reg(regno, kernel_regs, cregs); f46121bd26d7957 Mischa Jonker 2013-01-18 21 f46121bd26d7957 Mischa Jonker 2013-01-18 22 for (regno = 27; regno < GDB_MAX_REGS; regno++) f46121bd26d7957 Mischa Jonker 2013-01-18 23 gdb_regs[regno] = 0; f46121bd26d7957 Mischa Jonker 2013-01-18 24 f46121bd26d7957 Mischa Jonker 2013-01-18 25 gdb_regs[_FP] = kernel_regs->fp; f46121bd26d7957 Mischa Jonker 2013-01-18 26 gdb_regs[__SP] = kernel_regs->sp; f46121bd26d7957 Mischa Jonker 2013-01-18 27 gdb_regs[_BLINK] = kernel_regs->blink; f46121bd26d7957 Mischa Jonker 2013-01-18 28 gdb_regs[_RET] = kernel_regs->ret; f46121bd26d7957 Mischa Jonker 2013-01-18 29 gdb_regs[_STATUS32] = kernel_regs->status32; f46121bd26d7957 Mischa Jonker 2013-01-18 @30 gdb_regs[_LP_COUNT] = kernel_regs->lp_count; f46121bd26d7957 Mischa Jonker 2013-01-18 @31 gdb_regs[_LP_END] = kernel_regs->lp_end; f46121bd26d7957 Mischa Jonker 2013-01-18 @32 gdb_regs[_LP_START] = kernel_regs->lp_start; f46121bd26d7957 Mischa Jonker 2013-01-18 33 gdb_regs[_BTA] = kernel_regs->bta; f46121bd26d7957 Mischa Jonker 2013-01-18 34 gdb_regs[_STOP_PC] = kernel_regs->ret; f46121bd26d7957 Mischa Jonker 2013-01-18 35 } f46121bd26d7957 Mischa Jonker 2013-01-18 36 :::::: The code at line 30 was first introduced by commit :::::: f46121bd26d7957866739313f1e098a682e8d3e4 ARC: kgdb support :::::: TO: Mischa Jonker <mjonker(a)synopsys.com&gt; :::::: CC: Vineet Gupta <vgupta(a)synopsys.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org