Hi Christophe, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 009c9aa5be652675a06d5211e1640e02bbb1c33d commit: 4eeef098b43242ed145c83fba9989d586d707589 powerpc/44x: Remove STDBINUTILS kconfig option date: 5 months ago config: powerpc-randconfig-r032-20210615 (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4eeef098b43242ed145c83fba9989d586d707589 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/powerpc/include/asm/thread_info.h:13, from include/linux/thread_info.h:56, from include/asm-generic/preempt.h:5, from ./arch/powerpc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:16, from drivers/net/vmxnet3/vmxnet3_drv.c:27: drivers/net/vmxnet3/vmxnet3_drv.c: In function 'vmxnet3_rq_init': 24 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) | ^ drivers/net/vmxnet3/vmxnet3_drv.c:1784:29: note: in expansion of macro 'PAGE_SIZE' 1784 | rq->buf_info[0][i].len = PAGE_SIZE; | ^~~~~~~~~ 24 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) | ^ drivers/net/vmxnet3/vmxnet3_drv.c:1789:28: note: in expansion of macro 'PAGE_SIZE' 1789 | rq->buf_info[1][i].len = PAGE_SIZE; | ^~~~~~~~~ vim +24 arch/powerpc/include/asm/page.h 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 16 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 17 /* e12401222f749c arch/powerpc/include/asm/page.h Yuri Tikhonov 2009-01-29 18 * On regular PPC32 page size is 4K (but we support 4K/16K/64K/256K pages 555f4fdb93e70d arch/powerpc/include/asm/page.h Christophe Leroy 2019-02-21 19 * on PPC44x and 4K/16K on 8xx). For PPC64 we support either 4K or 64K software 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 20 * page size. When using 64K pages however, whether we are really supporting 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 21 * 64K pages in HW or not is irrelevant to those definitions. 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 22 */ 555f4fdb93e70d arch/powerpc/include/asm/page.h Christophe Leroy 2019-02-21 23 #define PAGE_SHIFT CONFIG_PPC_PAGE_SHIFT 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 @24 #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) 5cd16ee934eafc include/asm-powerpc/page.h Michael Ellerman 2005-11-11 25 :::::: The code at line 24 was first introduced by commit :::::: 5cd16ee934eafca74a6bb790328950cec68a8b78 [PATCH] powerpc: Merge page.h :::::: TO: Michael Ellerman <michael(a)ellerman.id.au&gt; :::::: CC: Paul Mackerras <paulus(a)samba.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org