tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: abaf6f60176f1ae9d946d63e4db63164600b7b1a commit: e8805271b82793e6d1f3de786c2278e4d622bdb6 [11581/11865] mm/gfp: add kernel-doc for gfp_t config: x86_64-randconfig-r022-20210220 (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=e8805271b82793e6d1f3de786c2278e4d622bdb6 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 e8805271b82793e6d1f3de786c2278e4d622bdb6 # 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 warnings (new ones prefixed by >>): In file included from arch/x86/kernel/asm-offsets.c:9: In file included from include/linux/crypto.h:20: In file included from include/linux/slab.h:15: >> include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-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 warning generated. -- In file included from kernel/locking/lockdep.c:34: In file included from include/linux/sched/mm.h:9: >> include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-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; ^ kernel/locking/lockdep.c:709:4: warning: format specifies type 'short' but the argument has type 'int' [-Wformat] class->wait_type_outer ?: class->wait_type_inner, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/locking/lockdep.c:1924:20: warning: unused function 'hlock_equal' [-Wunused-function] static inline bool hlock_equal(struct lock_list *entry, void *data) ^ 3 warnings generated. -- In file included from kernel/locking/qspinlock.c:29: In file included from kernel/locking/qspinlock_stat.h:16: In file included from include/linux/fs.h:15: In file included from include/linux/radix-tree.h:19: In file included from include/linux/xarray.h:14: >> include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-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; ^ In file included from kernel/locking/qspinlock.c:29: kernel/locking/qspinlock_stat.h:36:9: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes] ssize_t lockevent_read(struct file *file, char __user *user_buf, ^ kernel/locking/qspinlock_stat.h:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit ssize_t lockevent_read(struct file *file, char __user *user_buf, ^ static In file included from kernel/locking/qspinlock.c:581: kernel/locking/qspinlock_paravirt.h:493:1: warning: no previous prototype for function '__pv_queued_spin_unlock_slowpath' [-Wmissing-prototypes] __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked) ^ kernel/locking/qspinlock_paravirt.h:492:11: note: declare 'static' if the function is not intended to be used outside of this translation unit __visible void ^ static 3 warnings generated. -- In file included from kernel/locking/lock_events.c:19: In file included from include/linux/debugfs.h:15: In file included from include/linux/fs.h:15: In file included from include/linux/radix-tree.h:19: In file included from include/linux/xarray.h:14: >> include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-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; ^ kernel/locking/lock_events.c:61:16: warning: no previous prototype for function 'lockevent_read' [-Wmissing-prototypes] ssize_t __weak lockevent_read(struct file *file, char __user *user_buf, ^ kernel/locking/lock_events.c:61:1: note: declare 'static' if the function is not intended to be used outside of this translation unit ssize_t __weak lockevent_read(struct file *file, char __user *user_buf, ^ static 2 warnings generated. -- In file included from arch/x86/kernel/asm-offsets.c:9: In file included from include/linux/crypto.h:20: In file included from include/linux/slab.h:15: >> include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-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 warning generated. vim +/gfp_t +20 include/linux/gfp.h 10 11 /** 12 * typedef gfp_t - Memory allocation flags. 13 * 14 * GFP flags are commonly used throughout Linux to indicate how memory 15 * should be allocated. The GFP acronym stands for "get free pages", 16 * the underlying memory allocation function. Not every GFP flag is 17 * supported by every function which may allocate memory. Most users 18 * will want to use a plain ``GFP_KERNEL``. 19 */ > 20 typedef unsigned int __bitwise gfp_t; // repeated here for kernel-doc 21 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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