[android-common:android16-6.12-2025-12 0/2] include/linux/android_kabi.h:65:17: error: static assertion failed: "include/linux/dma-buf.h:547: u64 __kabi_reserved_backport1 is not aligned the same as atomic64_t nr_task_refs"

kernel test robot <[email protected]> Thu, 06 Aug 2026 05:26:31 +0800
Newsgroups dev.linux.lists.oe-kbuild-all
Message-ID <[email protected]>
Hi Mercier,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12-2025-12
head:   43cfff9a6e925a92e86e83f67db81659b3c405e5
commit: e24cc2d5218669b7412788d57528059ec6ecee4e [0/2] ANDROID: ABI: refresh, CRC fixups and allowed breaks
config: i386-buildonly-randconfig-001-20260806 (https://download.01.org/0day-ci/archive/20260806/[email protected]/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260806/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/slub.c:13:
>> include/linux/android_kabi.h:65:17: error: static assertion failed: "include/linux/dma-buf.h:547: u64 __kabi_reserved_backport1 is not aligned the same as atomic64_t nr_task_refs"
      65 |                 _Static_assert(                                         \
         |                 ^~~~~~~~~~~~~~
   include/linux/android_kabi.h:79:17: note: in expansion of macro '_ANDROID_KABI_NORMAL_SIZE_ALIGN'
      79 |                 _ANDROID_KABI_NORMAL_SIZE_ALIGN(_orig, _new); \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/android_kabi.h:189:9: note: in expansion of macro '_ANDROID_KABI_REPLACE'
     189 |         _ANDROID_KABI_REPLACE(ANDROID_BACKPORT_RESERVE(number), _new)
         |         ^~~~~~~~~~~~~~~~~~~~~
   include/linux/dma-buf.h:547:9: note: in expansion of macro 'ANDROID_BACKPORT_USE'
     547 |         ANDROID_BACKPORT_USE(1, atomic64_t nr_task_refs);
         |         ^~~~~~~~~~~~~~~~~~~~
--
   In file included from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/mm.h:7,
                    from mm/page_alloc.c:19:
>> include/linux/android_kabi.h:65:17: error: static assertion failed: "include/linux/dma-buf.h:547: u64 __kabi_reserved_backport1 is not aligned the same as atomic64_t nr_task_refs"
      65 |                 _Static_assert(                                         \
         |                 ^~~~~~~~~~~~~~
   include/linux/android_kabi.h:79:17: note: in expansion of macro '_ANDROID_KABI_NORMAL_SIZE_ALIGN'
      79 |                 _ANDROID_KABI_NORMAL_SIZE_ALIGN(_orig, _new); \
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/android_kabi.h:189:9: note: in expansion of macro '_ANDROID_KABI_REPLACE'
     189 |         _ANDROID_KABI_REPLACE(ANDROID_BACKPORT_RESERVE(number), _new)
         |         ^~~~~~~~~~~~~~~~~~~~~
   include/linux/dma-buf.h:547:9: note: in expansion of macro 'ANDROID_BACKPORT_USE'
     547 |         ANDROID_BACKPORT_USE(1, atomic64_t nr_task_refs);
         |         ^~~~~~~~~~~~~~~~~~~~
   mm/page_alloc.c:1831:6: warning: no previous prototype for 'prep_new_page' [-Wmissing-prototypes]
    1831 | void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
         |      ^~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for PHYLINK
   Depends on [n]: NETDEVICES [=n]
   Selected by [y]:
   - GKI_HIDDEN_ETHERNET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_SPY
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV
   Depends on [n]: SOUND [=y] && SND [=n] && SND_JACK [=y]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_INTEL_NHLT
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y] && ACPI [=y]
   WARNING: unmet direct dependencies detected for NET_DEVLINK
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_NET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_PROC
   Depends on [n]: NET [=n] && WIRELESS [=n] && PROC_FS [=y] && WEXT_CORE [=y]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for DIMLIB
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_VIRTUAL_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_PCM_ELD
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for PAGE_POOL
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_NET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_PRIV
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for NET_PTP_CLASSIFY
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_NET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for VIDEO_V4L2_SUBDEV_API
   Depends on [n]: MEDIA_SUPPORT [=y] && VIDEO_DEV [=n] && MEDIA_CONTROLLER [=y]
   Selected by [y]:
   - GKI_HIDDEN_MEDIA_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_PCM_IEC958
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_SOC_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WIRELESS_EXT
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_CORE
   Depends on [n]: NET [=n] && WIRELESS [=n] && (CFG80211_WEXT [=n] || WIRELESS_EXT [=y])
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for SND_COMPRESS_ACCEL
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_JACK
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_VMASTER
   Depends on [n]: SOUND [=y] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for CAN_RX_OFFLOAD
   Depends on [n]: NETDEVICES [=n] && CAN_DEV [=n] && CAN_NETLINK [=n]
   Selected by [y]:
   - GKI_HIDDEN_MCP251XFD_CONFIGS [=y]


vim +65 include/linux/android_kabi.h

e97af2a2f5563a Giuliano Procida   2025-05-28  54  
e97af2a2f5563a Giuliano Procida   2025-05-28  55  #define _ANDROID_KABI_RULE(hint, target, value) \
e97af2a2f5563a Giuliano Procida   2025-05-28  56  	__ANDROID_KABI_RULE(hint, #target, #value)
e3e94686886450 Giuliano Procida   2025-04-16  57  
e3e94686886450 Giuliano Procida   2025-04-16  58  #define _ANDROID_KABI_NORMAL_SIZE_ALIGN(_orig, _new)			\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  59  	union {								\
e3e94686886450 Giuliano Procida   2025-04-16  60  		_Static_assert(						\
e3e94686886450 Giuliano Procida   2025-04-16  61  			sizeof(struct { _new; }) <=			\
e3e94686886450 Giuliano Procida   2025-04-16  62  				sizeof(struct { _orig; }),		\
e3e94686886450 Giuliano Procida   2025-04-16  63  			FILE_LINE ": " __stringify(_new)		\
e3e94686886450 Giuliano Procida   2025-04-16  64  				" is larger than " __stringify(_orig));	\
e3e94686886450 Giuliano Procida   2025-04-16 @65  		_Static_assert(						\
e3e94686886450 Giuliano Procida   2025-04-16  66  			__alignof__(struct { _new; }) <=		\
e3e94686886450 Giuliano Procida   2025-04-16  67  				__alignof__(struct { _orig; }),		\
e3e94686886450 Giuliano Procida   2025-04-16  68  			FILE_LINE ": " __stringify(_orig)		\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  69  				" is not aligned the same as "		\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  70  				__stringify(_new));			\
804873a198f8dc Greg Kroah-Hartman 2020-03-11  71  	}
804873a198f8dc Greg Kroah-Hartman 2020-03-11  72  

:::::: The code at line 65 was first introduced by commit
:::::: e3e946868864503f88b95a0d8ffe6d61b7df82d6 ANDROID: update KABI macros for gendwarfksyms

:::::: TO: Giuliano Procida <[email protected]>
:::::: CC: Carlos Llamas <[email protected]>

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