tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: abaf6f60176f1ae9d946d63e4db63164600b7b1a commit: 784769f5b8efcd1920bde788a51e9ef69d1222b0 [11862/11865] Merge branch 'akpm-current/current' config: x86_64-randconfig-r026-20210220 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=784769f5b8efcd1920bde788a51e9ef69d1222b0 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 784769f5b8efcd1920bde788a51e9ef69d1222b0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from <built-in>:3: In file included from drivers/gpu/drm/i915/display/intel_display_power.h:9: In file included from drivers/gpu/drm/i915/display/intel_display.h:28: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:29: In file included from include/linux/ftrace.h:12: In file included from include/linux/kallsyms.h:12: In file included from include/linux/mm.h:10: >> include/linux/gfp.h:20:32: error: redefinition of typedef 'gfp_t' is a C11 feature [-Werror,-Wtypedef-redefinition] typedef unsigned int __bitwise gfp_t; // repeated here for kernel-doc ^ include/linux/types.h:148:32: note: previous definition is here typedef unsigned int __bitwise gfp_t; ^ 1 error generated. vim +/gfp_t +20 include/linux/gfp.h ^1da177e4c3f41 Linus Torvalds 2005-04-16 10 e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 11) /** e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 12) * typedef gfp_t - Memory allocation flags. e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 13) * e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 14) * GFP flags are commonly used throughout Linux to indicate how memory e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 15) * should be allocated. The GFP acronym stands for "get free pages", e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 16) * the underlying memory allocation function. Not every GFP flag is e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 17) * supported by every function which may allocate memory. Most users e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 18) * will want to use a plain ``GFP_KERNEL``. e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 19) */ e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 @20) typedef unsigned int __bitwise gfp_t; // repeated here for kernel-doc e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 21) :::::: The code at line 20 was first introduced by commit :::::: e8805271b82793e6d1f3de786c2278e4d622bdb6 mm/gfp: add kernel-doc for gfp_t :::::: TO: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> :::::: CC: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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