Re: [PATCH v2 3/3] firmware: arm_ffa: Share FF-A version negotiation

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

Hi Sudeep,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 7475ea8b58616b33c04afb976cf0fbaad9dd63fb]

url:    https://github.com/intel-lab-lkp/linux/commits/Sudeep-Holla/firmware-arm_ffa-Share-FF-A-register-field-definitions/20261112-111406
base:   7475ea8b58616b33c04afb976cf0fbaad9dd63fb
patch link:    https://lore.kernel.org/r/20261112-acpi_ffh_ffa-v2-3-575a9dbed22b%40kernel.org
patch subject: [PATCH v2 3/3] firmware: arm_ffa: Share FF-A version negotiation
config: arm-defconfig (https://download.01.org/0day-ci/archive/20261113/202611131010.OMo0VbqM-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 1b1fed44d3dcca649a9877915d57c3357a98124e)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261113/202611131010.OMo0VbqM-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/202611131010.OMo0VbqM-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/tee/optee/ffa_abi.c:8:
>> include/linux/arm_ffa.h:189:30: warning: declaration of 'struct arm_smccc_1_2_regs' will not be visible outside of this function [-Wvisibility]
     189 |         void (*invoke)(const struct arm_smccc_1_2_regs *args,
         |                                     ^
   1 warning generated.


vim +189 include/linux/arm_ffa.h

   182	
   183	#if IS_BUILTIN(CONFIG_ARM_FFA_VERSION_NEGOTIATION)
   184	int arm_ffa_version_get(void (*invoke)(const struct arm_smccc_1_2_regs *args,
   185					       struct arm_smccc_1_2_regs *res),
   186				u32 input_version, u32 *version);
   187	#else
   188	static inline int arm_ffa_version_get(
 > 189		void (*invoke)(const struct arm_smccc_1_2_regs *args,
   190			       struct arm_smccc_1_2_regs *res),
   191		u32 input_version, u32 *version) { return -EOPNOTSUPP; }
   192	#endif /* CONFIG_ARM_FFA_VERSION_NEGOTIATION */
   193	

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