[kbuild-all] [arm:zii 144/161] include/linux/kernel.h:495:51: error: dereferencing pointer to incomplete type 'struct axienet_pcs'

tree: git://git.armlinux.org.uk/~rmk/linux-arm.git zii head: 1c86335a03ee0102daaefede1fb25cdbb367b14c commit: 9849020c16f670a3b701023ef3ae94efca71402f [144/161] net: axienet: convert to phylink_pcs config: i386-randconfig-r024-20211124 (https://download.01.org/0day-ci/archive/20211124/202111241745.iVhziIww-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add arm git://git.armlinux.org.uk/~rmk/linux-arm.git git fetch --no-tags arm zii git checkout 9849020c16f670a3b701023ef3ae94efca71402f # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/xilinx/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from <command-line>: drivers/net/ethernet/xilinx/xilinx_axienet_main.c: In function 'pcs_to_axienet': 495 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~ include/linux/compiler_types.h:302:9: note: in definition of macro '__compiletime_assert' 302 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:322:2: note: in expansion of macro '_compiletime_assert' 322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/kernel.h:495:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' 495 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~~~~~~~~~~~~~~~ include/linux/kernel.h:495:20: note: in expansion of macro '__same_type' 495 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~~~~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1508:9: note: in expansion of macro 'container_of' 1508 | return container_of(pcs, struct axienet_pcs, pcs); | ^~~~~~~~~~~~ 140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b) | ^~~~~~~~~~~~~~~~~~ include/linux/stddef.h:17:32: note: in expansion of macro '__compiler_offsetof' 17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~~ include/linux/kernel.h:498:21: note: in expansion of macro 'offsetof' 498 | ((type *)(__mptr - offsetof(type, member))); }) | ^~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1508:9: note: in expansion of macro 'container_of' 1508 | return container_of(pcs, struct axienet_pcs, pcs); | ^~~~~~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c: In function 'axienet_pcs_get_state': 1514 | struct mdio_device *pcs_phy = pcs_to_axienet_local(pcs)->pcs_phy; | ^~~~~~~~~~~~~~~~~~~~ | pcs_to_axienet 1514 | struct mdio_device *pcs_phy = pcs_to_axienet_local(pcs)->pcs_phy; | ^~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c: In function 'axienet_pcs_an_restart': drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1521:57: error: invalid type argument of '->' (have 'int') 1521 | struct mdio_device *pcs_phy = pcs_to_axienet_local(pcs)->pcs_phy; | ^~ 1523 | phylink_mii_c22_pcs_an_restart(lp->pcs_phy); | ^~ | up drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1523:33: note: each undeclared identifier is reported only once for each function it appears in drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1521:22: warning: unused variable 'pcs_phy' [-Wunused-variable] 1521 | struct mdio_device *pcs_phy = pcs_to_axienet_local(pcs)->pcs_phy; | ^~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c: In function 'axienet_pcs_config': drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1531:53: error: invalid type argument of '->' (have 'int') 1531 | struct net_device *ndev = pcs_to_axienet_local(pcs)->ndev; | ^~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1532:57: error: invalid type argument of '->' (have 'int') 1532 | struct mdio_device *pcs_phy = pcs_to_axienet_local(pcs)->pcs_phy; | ^~ 1537 | iface == PHY_INTERFACE_MODE_SGMII ? | ^~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c: At top level: 1554 | .pcs_config = axienet_pcs_config, | ^~~~~~~~~~~~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1554:16: note: (near initialization for 'axienet_pcs_ops.pcs_config') drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1506:30: warning: 'pcs_to_axienet' defined but not used [-Wunused-function] 1506 | static struct axienet_local *pcs_to_axienet(struct phylink_pcs *pcs) | ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +495 include/linux/kernel.h cf14f27f82af78 Alexei Starovoitov 2018-03-28 485 ^1da177e4c3f41 Linus Torvalds 2005-04-16 486 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 487 * container_of - cast a member of a structure out to the containing structure ^1da177e4c3f41 Linus Torvalds 2005-04-16 488 * @ptr: the pointer to the member. ^1da177e4c3f41 Linus Torvalds 2005-04-16 489 * @type: the type of the container struct this is embedded in. ^1da177e4c3f41 Linus Torvalds 2005-04-16 490 * @member: the name of the member within the struct. ^1da177e4c3f41 Linus Torvalds 2005-04-16 491 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 492 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 493 #define container_of(ptr, type, member) ({ \ c7acec713d14c6 Ian Abbott 2017-07-12 494 void *__mptr = (void *)(ptr); \ c7acec713d14c6 Ian Abbott 2017-07-12 @495 BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ c7acec713d14c6 Ian Abbott 2017-07-12 496 !__same_type(*(ptr), void), \ c7acec713d14c6 Ian Abbott 2017-07-12 497 "pointer type mismatch in container_of()"); \ c7acec713d14c6 Ian Abbott 2017-07-12 498 ((type *)(__mptr - offsetof(type, member))); }) ^1da177e4c3f41 Linus Torvalds 2005-04-16 499 :::::: The code at line 495 was first introduced by commit :::::: c7acec713d14c6ce8a20154f9dfda258d6bcad3b kernel.h: handle pointers to arrays better in container_of() :::::: TO: Ian Abbott <abbotti(a)mev.co.uk&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org