Messages in this thread | | | Date | Thu, 17 Mar 2022 05:10:32 +0800 | From | kernel test robot <> | Subject | [mingo-tip:master 557/2335] kernel/user-return-notifier.c:41:10: error: implicit declaration of function 'preempt_disable' |
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tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git master head: 85293bf3fca6d85608cff1447ce3097583f15fab commit: 025a44143e076e9fc9c3ae07986dd86b01330f75 [557/2335] headers/deps: Optimize <linux/sched.h> dependencies, remove <linux/sched/cond_resched.h> inclusion config: i386-randconfig-a016-20220314 (https://download.01.org/0day-ci/archive/20220317/202203170515.1TR383cF-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb) 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/mingo/tip.git/commit/?id=025a44143e076e9fc9c3ae07986dd86b01330f75 git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip master git checkout 025a44143e076e9fc9c3ae07986dd86b01330f75 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
Note: the mingo-tip/master HEAD 85293bf3fca6d85608cff1447ce3097583f15fab builds fine. It only hurts bisectability.
All errors (new ones prefixed by >>):
>> kernel/user-return-notifier.c:41:10: error: implicit declaration of function 'preempt_disable' [-Werror,-Wimplicit-function-declaration] head = &get_cpu_var(return_notifier_list); ^ include/linux/percpu-defs.h:277:2: note: expanded from macro 'get_cpu_var' preempt_disable(); \ ^ >> kernel/user-return-notifier.c:44:2: error: implicit declaration of function 'preempt_enable' [-Werror,-Wimplicit-function-declaration] put_cpu_var(return_notifier_list); ^ include/linux/percpu-defs.h:288:2: note: expanded from macro 'put_cpu_var' preempt_enable(); \ ^ 2 errors generated.
vim +/preempt_disable +41 kernel/user-return-notifier.c
7c68af6e32c739 Avi Kivity 2009-09-19 33 7c68af6e32c739 Avi Kivity 2009-09-19 34 /* Calls registered user return notifiers */ 7c68af6e32c739 Avi Kivity 2009-09-19 35 void fire_user_return_notifiers(void) 7c68af6e32c739 Avi Kivity 2009-09-19 36 { 7c68af6e32c739 Avi Kivity 2009-09-19 37 struct user_return_notifier *urn; b67bfe0d42cac5 Sasha Levin 2013-02-27 38 struct hlist_node *tmp2; 7c68af6e32c739 Avi Kivity 2009-09-19 39 struct hlist_head *head; 7c68af6e32c739 Avi Kivity 2009-09-19 40 7c68af6e32c739 Avi Kivity 2009-09-19 @41 head = &get_cpu_var(return_notifier_list); b67bfe0d42cac5 Sasha Levin 2013-02-27 42 hlist_for_each_entry_safe(urn, tmp2, head, link) 7c68af6e32c739 Avi Kivity 2009-09-19 43 urn->on_user_return(urn); 3c912b6edaac56 Stephen Rothwell 2009-11-02 @44 put_cpu_var(return_notifier_list);
:::::: The code at line 41 was first introduced by commit :::::: 7c68af6e32c73992bad24107311f3433c89016e2 core, x86: Add user return notifiers
:::::: TO: Avi Kivity <avi@redhat.com> :::::: CC: H. Peter Anvin <hpa@zytor.com>
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