[android-common:android14-6.1-2025-09 1/1] include/linux/android_kabi.h:49:17: error: static assertion failed: "include/linux/dma-buf.h:540: u64 android_kabi_reserved1 is not aligned the same as atomic64_t nr_task_refs"

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

Hi Mercier,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android14-6.1-2025-09
head:   ecc3e0ec515e0f0ddd4ad755a477529a9597ad3d
commit: 4b2d8222ee51d3aac9c4b9c2b5b758ab17d639b8 [1/1] ANDROID: Use ABI reservations for dmabuf RSS / PSS accounting
config: i386-randconfig-014-20260611 (https://download.01.org/0day-ci/archive/20260611/202606112037.jZ2DPXVm-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260611/202606112037.jZ2DPXVm-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/202606112037.jZ2DPXVm-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/android_vendor.h:18,
                    from include/linux/mutex.h:23,
                    from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ratelimit.h:6,
                    from include/linux/dev_printk.h:16,
                    from include/linux/device.h:15,
                    from drivers/tee/tee_shm_pool.c:5:
>> include/linux/android_kabi.h:49:17: error: static assertion failed: "include/linux/dma-buf.h:540: u64 android_kabi_reserved1 is not aligned the same as atomic64_t nr_task_refs"
      49 |                 _Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}),       \
         |                 ^~~~~~~~~~~~~~
   include/linux/android_kabi.h:68:17: note: in expansion of macro '__ANDROID_KABI_CHECK_SIZE_ALIGN'
      68 |                 __ANDROID_KABI_CHECK_SIZE_ALIGN(_orig, _new);   \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/android_kabi.h:113:9: note: in expansion of macro '_ANDROID_KABI_REPLACE'
     113 |         _ANDROID_KABI_REPLACE(_ANDROID_KABI_RESERVE(number), _new)
         |         ^~~~~~~~~~~~~~~~~~~~~
   include/linux/dma-buf.h:540:9: note: in expansion of macro 'ANDROID_KABI_USE'
     540 |         ANDROID_KABI_USE(1, atomic64_t nr_task_refs);
         |         ^~~~~~~~~~~~~~~~


vim +49 include/linux/android_kabi.h

804873a198f8dc Greg Kroah-Hartman 2020-03-11  37  
804873a198f8dc Greg Kroah-Hartman 2020-03-11  38  /*
804873a198f8dc Greg Kroah-Hartman 2020-03-11  39   * Worker macros, don't use these, use the ones without a leading '_'
804873a198f8dc Greg Kroah-Hartman 2020-03-11  40   */
804873a198f8dc Greg Kroah-Hartman 2020-03-11  41  
804873a198f8dc Greg Kroah-Hartman 2020-03-11  42  #define __ANDROID_KABI_CHECK_SIZE_ALIGN(_orig, _new)				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  43  	union {									\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  44  		_Static_assert(sizeof(struct{_new;}) <= sizeof(struct{_orig;}),	\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  45  			       __FILE__ ":" __stringify(__LINE__) ": "		\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  46  			       __stringify(_new)				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  47  			       " is larger than "				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  48  			       __stringify(_orig) );				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11 @49  		_Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}),	\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  50  			       __FILE__ ":" __stringify(__LINE__) ": "		\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  51  			       __stringify(_orig)				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  52  			       " is not aligned the same as "			\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  53  			       __stringify(_new) );				\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  54  	}
804873a198f8dc Greg Kroah-Hartman 2020-03-11  55  

:::::: The code at line 49 was first introduced by commit
:::::: 804873a198f8dcb3f9c414ab5dcf40a1fd14b918 ANDROID: GKI: add android_kabi.h

:::::: TO: Greg Kroah-Hartman <gregkh@google.com>
:::::: CC: Jaskaran Singh <quic_jasksing@quicinc.com>

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