Messages in this thread | | | Date | Thu, 5 Mar 2020 21:59:42 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v1 1/1] sched/fair: do not preempt current task if it is going to call schedule() |
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Hi,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/sched/core] [also build test ERROR on arm64/for-next/core tip/auto-latest linus/master v5.6-rc4 next-20200305] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/cl-rock-chips-com/wait_task_inactive-spend-too-much-time-on-system-startup/20200305-201639 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git a0f03b617c3b2644d3d47bf7d9e60aed01bd5b10 config: um-x86_64_defconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/um/shared/sysdep/kernel-offsets.h:3:0, from arch/um/kernel/asm-offsets.c:1: include/linux/sched.h: In function 'set_tsk_going_to_sched': >> include/linux/sched.h:1776:27: error: 'TIF_GOING_TO_SCHED' undeclared (first use in this function); did you mean 'TIF_NEED_RESCHED'? set_tsk_thread_flag(tsk, TIF_GOING_TO_SCHED); ^~~~~~~~~~~~~~~~~~ TIF_NEED_RESCHED include/linux/sched.h:1776:27: note: each undeclared identifier is reported only once for each function it appears in include/linux/sched.h: In function 'clear_tsk_going_to_sched': include/linux/sched.h:1781:29: error: 'TIF_GOING_TO_SCHED' undeclared (first use in this function); did you mean 'TIF_NEED_RESCHED'? clear_tsk_thread_flag(tsk, TIF_GOING_TO_SCHED); ^~~~~~~~~~~~~~~~~~ TIF_NEED_RESCHED In file included from include/asm-generic/bug.h:5:0, from ./arch/um/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/current.h:5, from ./arch/um/include/generated/asm/current.h:1, from include/linux/sched.h:12, from arch/x86/um/shared/sysdep/kernel-offsets.h:3, from arch/um/kernel/asm-offsets.c:1: include/linux/sched.h: In function 'test_tsk_going_to_sched': include/linux/sched.h:1786:44: error: 'TIF_GOING_TO_SCHED' undeclared (first use in this function); did you mean 'TIF_NEED_RESCHED'? return unlikely(test_tsk_thread_flag(tsk, TIF_GOING_TO_SCHED)); ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ make[2]: *** [scripts/Makefile.build:101: arch/um/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1112: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:179: sub-make] Error 2 49 real 6 user 8 sys 31.64% cpu make prepare
vim +1776 include/linux/sched.h
1773 1774 static inline void set_tsk_going_to_sched(struct task_struct *tsk) 1775 { > 1776 set_tsk_thread_flag(tsk, TIF_GOING_TO_SCHED); 1777 } 1778
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