[linux-next:master 7952/12404] arch/arm64/kvm/handle_exit.c:318:4: error: implicit declaration of function 'bug_get_file_line'

[kernel test robot <lkp@intel.com>]

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Hi Andrew,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   dcf1b51d6b2ac5da234ae6883ed0e9422c339588
commit: aec0fae62e47050019474936248a311a0ab08705 [7952/12404] KVM: arm64: Log source when panicking from nVHE hyp
config: arm64-randconfig-r004-20210413 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aec0fae62e47050019474936248a311a0ab08705
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout aec0fae62e47050019474936248a311a0ab08705
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arch/arm64/kvm/handle_exit.c:177:21: warning: initialized field overwritten [-Woverride-init]
     177 |  [ESR_ELx_EC_WFx] = kvm_handle_wfx,
         |                     ^~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:177:21: note: (near initialization for 'arm_exit_handlers[1]')
   arch/arm64/kvm/handle_exit.c:178:25: warning: initialized field overwritten [-Woverride-init]
     178 |  [ESR_ELx_EC_CP15_32] = kvm_handle_cp15_32,
         |                         ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:178:25: note: (near initialization for 'arm_exit_handlers[3]')
   arch/arm64/kvm/handle_exit.c:179:25: warning: initialized field overwritten [-Woverride-init]
     179 |  [ESR_ELx_EC_CP15_64] = kvm_handle_cp15_64,
         |                         ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:179:25: note: (near initialization for 'arm_exit_handlers[4]')
   arch/arm64/kvm/handle_exit.c:180:25: warning: initialized field overwritten [-Woverride-init]
     180 |  [ESR_ELx_EC_CP14_MR] = kvm_handle_cp14_32,
         |                         ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:180:25: note: (near initialization for 'arm_exit_handlers[5]')
   arch/arm64/kvm/handle_exit.c:181:25: warning: initialized field overwritten [-Woverride-init]
     181 |  [ESR_ELx_EC_CP14_LS] = kvm_handle_cp14_load_store,
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:181:25: note: (near initialization for 'arm_exit_handlers[6]')
   arch/arm64/kvm/handle_exit.c:182:25: warning: initialized field overwritten [-Woverride-init]
     182 |  [ESR_ELx_EC_CP14_64] = kvm_handle_cp14_64,
         |                         ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:182:25: note: (near initialization for 'arm_exit_handlers[12]')
   arch/arm64/kvm/handle_exit.c:183:23: warning: initialized field overwritten [-Woverride-init]
     183 |  [ESR_ELx_EC_HVC32] = handle_hvc,
         |                       ^~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:183:23: note: (near initialization for 'arm_exit_handlers[18]')
   arch/arm64/kvm/handle_exit.c:184:23: warning: initialized field overwritten [-Woverride-init]
     184 |  [ESR_ELx_EC_SMC32] = handle_smc,
         |                       ^~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:184:23: note: (near initialization for 'arm_exit_handlers[19]')
   arch/arm64/kvm/handle_exit.c:185:23: warning: initialized field overwritten [-Woverride-init]
     185 |  [ESR_ELx_EC_HVC64] = handle_hvc,
         |                       ^~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:185:23: note: (near initialization for 'arm_exit_handlers[22]')
   arch/arm64/kvm/handle_exit.c:186:23: warning: initialized field overwritten [-Woverride-init]
     186 |  [ESR_ELx_EC_SMC64] = handle_smc,
         |                       ^~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:186:23: note: (near initialization for 'arm_exit_handlers[23]')
   arch/arm64/kvm/handle_exit.c:187:23: warning: initialized field overwritten [-Woverride-init]
     187 |  [ESR_ELx_EC_SYS64] = kvm_handle_sys_reg,
         |                       ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:187:23: note: (near initialization for 'arm_exit_handlers[24]')
   arch/arm64/kvm/handle_exit.c:188:21: warning: initialized field overwritten [-Woverride-init]
     188 |  [ESR_ELx_EC_SVE] = handle_sve,
         |                     ^~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:188:21: note: (near initialization for 'arm_exit_handlers[25]')
   arch/arm64/kvm/handle_exit.c:189:26: warning: initialized field overwritten [-Woverride-init]
     189 |  [ESR_ELx_EC_IABT_LOW] = kvm_handle_guest_abort,
         |                          ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:189:26: note: (near initialization for 'arm_exit_handlers[32]')
   arch/arm64/kvm/handle_exit.c:190:26: warning: initialized field overwritten [-Woverride-init]
     190 |  [ESR_ELx_EC_DABT_LOW] = kvm_handle_guest_abort,
         |                          ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:190:26: note: (near initialization for 'arm_exit_handlers[36]')
   arch/arm64/kvm/handle_exit.c:191:28: warning: initialized field overwritten [-Woverride-init]
     191 |  [ESR_ELx_EC_SOFTSTP_LOW]= kvm_handle_guest_debug,
         |                            ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:191:28: note: (near initialization for 'arm_exit_handlers[50]')
   arch/arm64/kvm/handle_exit.c:192:28: warning: initialized field overwritten [-Woverride-init]
     192 |  [ESR_ELx_EC_WATCHPT_LOW]= kvm_handle_guest_debug,
         |                            ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:192:28: note: (near initialization for 'arm_exit_handlers[52]')
   arch/arm64/kvm/handle_exit.c:193:28: warning: initialized field overwritten [-Woverride-init]
     193 |  [ESR_ELx_EC_BREAKPT_LOW]= kvm_handle_guest_debug,
         |                            ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:193:28: note: (near initialization for 'arm_exit_handlers[48]')
   arch/arm64/kvm/handle_exit.c:194:24: warning: initialized field overwritten [-Woverride-init]
     194 |  [ESR_ELx_EC_BKPT32] = kvm_handle_guest_debug,
         |                        ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:194:24: note: (near initialization for 'arm_exit_handlers[56]')
   arch/arm64/kvm/handle_exit.c:195:23: warning: initialized field overwritten [-Woverride-init]
     195 |  [ESR_ELx_EC_BRK64] = kvm_handle_guest_debug,
         |                       ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:195:23: note: (near initialization for 'arm_exit_handlers[60]')
   arch/arm64/kvm/handle_exit.c:196:26: warning: initialized field overwritten [-Woverride-init]
     196 |  [ESR_ELx_EC_FP_ASIMD] = handle_no_fpsimd,
         |                          ^~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:196:26: note: (near initialization for 'arm_exit_handlers[7]')
   arch/arm64/kvm/handle_exit.c:197:21: warning: initialized field overwritten [-Woverride-init]
     197 |  [ESR_ELx_EC_PAC] = kvm_handle_ptrauth,
         |                     ^~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c:197:21: note: (near initialization for 'arm_exit_handlers[9]')
   arch/arm64/kvm/handle_exit.c:295:24: warning: no previous prototype for 'nvhe_hyp_panic_handler' [-Wmissing-prototypes]
     295 | void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr, u64 elr,
         |                        ^~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/handle_exit.c: In function 'nvhe_hyp_panic_handler':
>> arch/arm64/kvm/handle_exit.c:318:4: error: implicit declaration of function 'bug_get_file_line' [-Werror=implicit-function-declaration]
     318 |    bug_get_file_line(bug, &file, &line);
         |    ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/bug_get_file_line +318 arch/arm64/kvm/handle_exit.c

   294	
   295	void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr, u64 elr,
   296						      u64 par, uintptr_t vcpu,
   297						      u64 far, u64 hpfar) {
   298		u64 elr_in_kimg = __phys_to_kimg(__hyp_pa(elr));
   299		u64 hyp_offset = elr_in_kimg - kaslr_offset() - elr;
   300		u64 mode = spsr & PSR_MODE_MASK;
   301	
   302		/*
   303		 * The nVHE hyp symbols are not included by kallsyms to avoid issues
   304		 * with aliasing. That means that the symbols cannot be printed with the
   305		 * "%pS" format specifier, so fall back to the vmlinux address if
   306		 * there's no better option.
   307		 */
   308		if (mode != PSR_MODE_EL2t && mode != PSR_MODE_EL2h) {
   309			kvm_err("Invalid host exception to nVHE hyp!\n");
   310		} else if (ESR_ELx_EC(esr) == ESR_ELx_EC_BRK64 &&
   311			   (esr & ESR_ELx_BRK64_ISS_COMMENT_MASK) == BUG_BRK_IMM) {
   312			struct bug_entry *bug = find_bug(elr_in_kimg);
   313			const char *file = NULL;
   314			unsigned int line = 0;
   315	
   316			/* All hyp bugs, including warnings, are treated as fatal. */
   317			if (bug)
 > 318				bug_get_file_line(bug, &file, &line);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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