Re: [PATCH 1/1] firmware: smccc: add support for Live Firmware Activation (LFA)

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

Hi Salman,

kernel test robot noticed the following build errors:

[auto build test ERROR on soc/for-next]
[also build test ERROR on linus/master v6.19-rc6 next-20260116]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Salman-Nabi/firmware-smccc-add-support-for-Live-Firmware-Activation-LFA/20260119-203221
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20260119122729.287522-2-salman.nabi%40arm.com
patch subject: [PATCH 1/1] firmware: smccc: add support for Live Firmware Activation (LFA)
config: arm-defconfig (https://download.01.org/0day-ci/archive/20260120/202601200543.EKFOBfnW-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260120/202601200543.EKFOBfnW-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601200543.EKFOBfnW-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/firmware/smccc/lfa_fw.c:179:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     179 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:179:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     179 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
>> drivers/firmware/smccc/lfa_fw.c:184:2: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     184 |         arm_smccc_1_2_invoke(&reg, &reg);
         |         ^
   drivers/firmware/smccc/lfa_fw.c:194:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     194 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:194:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     194 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:198:2: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     198 |         arm_smccc_1_2_invoke(&reg, &reg);
         |         ^
   drivers/firmware/smccc/lfa_fw.c:220:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     220 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:220:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     220 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:234:3: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     234 |                 arm_smccc_1_2_invoke(&reg, &reg);
         |                 ^
   drivers/firmware/smccc/lfa_fw.c:290:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     290 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:290:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     290 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:318:3: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     318 |                 arm_smccc_1_2_invoke(&reg, &reg);
         |                 ^
   drivers/firmware/smccc/lfa_fw.c:360:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     360 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:360:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     360 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:368:2: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     368 |         arm_smccc_1_2_invoke(&reg, &reg);
         |         ^
   drivers/firmware/smccc/lfa_fw.c:434:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     434 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:434:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     434 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:443:2: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     443 |         arm_smccc_1_2_invoke(&reg, &reg);
         |         ^
   drivers/firmware/smccc/lfa_fw.c:586:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     586 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:586:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     586 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:600:3: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     600 |                 arm_smccc_1_2_invoke(&reg, &reg);
         |                 ^
   drivers/firmware/smccc/lfa_fw.c:619:28: error: variable has incomplete type 'struct arm_smccc_1_2_regs'
     619 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                                   ^
   drivers/firmware/smccc/lfa_fw.c:619:9: note: forward declaration of 'struct arm_smccc_1_2_regs'
     619 |         struct arm_smccc_1_2_regs reg = { 0 };
         |                ^
   drivers/firmware/smccc/lfa_fw.c:623:2: error: call to undeclared function 'arm_smccc_1_2_invoke'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     623 |         arm_smccc_1_2_invoke(&reg, &reg);
         |         ^
   16 errors generated.


vim +179 drivers/firmware/smccc/lfa_fw.c

   176	
   177	static unsigned long get_nr_lfa_components(void)
   178	{
 > 179		struct arm_smccc_1_2_regs reg = { 0 };
   180	
   181		reg.a0 = LFA_1_0_FN_GET_INFO;
   182		reg.a1 = 0; /* lfa_info_selector = 0 */
   183	
 > 184		arm_smccc_1_2_invoke(&reg, &reg);
   185		if (reg.a0 != LFA_SUCCESS)
   186			return reg.a0;
   187	
   188		return reg.a1;
   189	}
   190	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki