Messages in this thread | | | Date | Sun, 17 May 2020 19:26:32 +0800 | From | kbuild test robot <> | Subject | [rcu:tglx.2020.05.05a 105/140] arch/x86/kernel/traps.c:819:24: error: 'tsk' undeclared |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tglx.2020.05.05a head: e6d36eed49b863bbe393e3c07cae737cd9c475e3 commit: ca303aa341bab5cdb3a3b41391ff262e252cd3f3 [105/140] x86/traps: Restructure #DB handling config: i386-tinyconfig (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: git checkout ca303aa341bab5cdb3a3b41391ff262e252cd3f3 # save the attached .config to linux build tree make ARCH=i386
If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@intel.com>
Note: the rcu/tglx.2020.05.05a HEAD e6d36eed49b863bbe393e3c07cae737cd9c475e3 builds fine. It only hurts bisectibility.
All errors (new ones prefixed by >>, old ones prefixed by <<):
arch/x86/kernel/traps.c: In function 'exc_debug_kernel': >> arch/x86/kernel/traps.c:819:24: error: 'tsk' undeclared (first use in this function) clear_tsk_thread_flag(tsk, TIF_BLOCKSTEP); ^~~ arch/x86/kernel/traps.c:819:24: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kernel/traps.c: In function 'exc_debug_user': arch/x86/kernel/traps.c:842:24: error: 'tsk' undeclared (first use in this function) clear_tsk_thread_flag(tsk, TIF_BLOCKSTEP); ^~~
vim +/tsk +819 arch/x86/kernel/traps.c
809 810 static __always_inline void exc_debug_kernel(struct pt_regs *regs, 811 unsigned long dr6) 812 { 813 nmi_enter(); 814 /* 815 * The SDM says "The processor clears the BTF flag when it 816 * generates a debug exception." Clear TIF_BLOCKSTEP to keep 817 * TIF_BLOCKSTEP in sync with the hardware BTF flag. 818 */ > 819 clear_tsk_thread_flag(tsk, TIF_BLOCKSTEP); 820 821 /* 822 * Catch SYSENTER with TF set and clear DR_STEP. If this hit a 823 * watchpoint at the same time then that will still be handled. 824 */ 825 if ((dr6 & DR_STEP) && is_sysenter_singlestep(regs)) 826 dr6 &= ~DR_STEP; 827 828 /* 829 * If DR6 is zero, no point in trying to handle it. The kernel is 830 * not using INT1. 831 */ 832 if (dr6) 833 handle_debug(regs, dr6, false); 834 835 nmi_exit(); 836 } 837
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