Re: gpiolib: annotate struct acpi_gpio_mapping with __counted_by_ptr

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

Hi Bill,

kernel test robot noticed the following build errors:



url:    https://github.com/intel-lab-lkp/linux/commits/Bill-Wendling/gpiolib-annotate-struct-acpi_gpio_mapping-with-__counted_by_ptr/20261002-124225
base:   
patch link:    https://lore.kernel.org/r/202610050705.Z7tuheXs-lkp%40intel.com
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20261005/202610050705.Z7tuheXs-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261005/202610050705.Z7tuheXs-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/202610050705.Z7tuheXs-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/firmware/efi/libstub/bli.c:5:
   In file included from include/linux/efi.h:20:
   In file included from include/linux/rtc.h:18:
   In file included from include/linux/nvmem-provider.h:16:
>> include/linux/gpio/consumer.h:670:55: error: use of undeclared identifier 'size'; did you mean 'ksize'?
     670 |         const struct acpi_gpio_params *data __counted_by_ptr(size);
         |                                                              ^~~~
         |                                                              ksize
   include/linux/compiler_types.h:392:64: note: expanded from macro '__counted_by_ptr'
     392 | #define __counted_by_ptr(member)        __attribute__((__counted_by__(member)))
         |                                                                       ^~~~~~
   include/linux/slab.h:602:8: note: 'ksize' declared here
     602 | size_t ksize(const void *objp);
         |        ^
   In file included from drivers/firmware/efi/libstub/bli.c:5:
   In file included from include/linux/efi.h:20:
   In file included from include/linux/rtc.h:18:
   In file included from include/linux/nvmem-provider.h:16:
>> include/linux/gpio/consumer.h:670:55: error: 'counted_by' requires a non-boolean integer type argument
     670 |         const struct acpi_gpio_params *data __counted_by_ptr(size);
         |                                                              ^~~~
   2 errors generated.


vim +670 include/linux/gpio/consumer.h

   667	
   668	struct acpi_gpio_mapping {
   669		const char *name;
 > 670		const struct acpi_gpio_params *data __counted_by_ptr(size);
   671		unsigned int size;
   672	

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