[avpatel:riscv_raid6_rvv_v5 71/73] drivers/acpi/apei/apei-base.c:578: warning: Function parameter or struct member 'access_bit_width' not described in 'arch_apei_ffh_read'

[avpatel:riscv_raid6_rvv_v5 71/73] drivers/acpi/apei/apei-base.c:578: warning: Function parameter or struct member 'access_bit_width' not described in 'arch_apei_ffh_read'

[kernel test robot]

tree:   https://github.com/avpatel/linux.git riscv_raid6_rvv_v5
head:   43edddc0c506de31b78ddf9074e7b2c057e668a7
commit: bbd0c6fe3c7a582057ffa9bb1366c7f699dcd006 [71/73] ACPI: APEI: add FFP support for APEI register access
config: i386-buildonly-randconfig-002-20250525 (https://download.01.org/0day-ci/archive/20250525/202505252252.IrLUtlFg-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250525/202505252252.IrLUtlFg-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/202505252252.IrLUtlFg-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/acpi/apei/apei-base.c:578: warning: Function parameter or struct member 'access_bit_width' not described in 'arch_apei_ffh_read'
>> drivers/acpi/apei/apei-base.c:592: warning: Function parameter or struct member 'access_bit_width' not described in 'arch_apei_ffh_write'


vim +578 drivers/acpi/apei/apei-base.c

   567	
   568	/**
   569	 * arch_apei_ffh_read() - Read FFH register
   570	 * @reg:	FFH encoded register information
   571	 * @val:	place holder for return value
   572	 *
   573	 * Read value from a specified encoded address
   574	 *
   575	 * Return: 0 for success and error code
   576	 */
   577	int __weak arch_apei_ffh_read(u64 reg, u64 *val, u32 access_bit_width)
 > 578	{
   579		return -ENOTSUPP;
   580	}
   581	
   582	/**
   583	 * arch_apei_ffh_write() - Write FFH register
   584	 * @reg:	FFH encoded register information
   585	 * @val:	value to write
   586	 *
   587	 * Write value to a specified address.
   588	 *
   589	 * Return: 0 for success and error code
   590	 */
   591	int __weak arch_apei_ffh_write(u64 reg, u64 val, u32 access_bit_width)
 > 592	{
   593		return -ENOTSUPP;
   594	}
   595	

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