Messages in this thread | | | Date | Tue, 22 May 2018 15:08:18 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [rcu:rcu/dev 5/99] arch/x86/kernel/cpu/mtrr/main.c:797: undefined reference to `rcu_cpu_starting' |
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On Wed, May 23, 2018 at 05:30:30AM +0800, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/dev > head: 477fc1978395d58ae0406293a1d963629778a39d > commit: 354238a30982b817262fe6f9d00f808451694366 [5/99] rcu/x86: Provide early rcu_cpu_starting() callback > config: i386-randconfig-i1-201820 (attached as .config) > compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 > reproduce: > git checkout 354238a30982b817262fe6f9d00f808451694366 > # save the attached .config to linux build tree > make ARCH=i386 > > All errors (new ones prefixed by >>):
Problems with !SMP, which I am beating up on...
Thanx, Paul
> arch/x86/kernel/cpu/mtrr/main.o: In function `mtrr_ap_init': > >> arch/x86/kernel/cpu/mtrr/main.c:797: undefined reference to `rcu_cpu_starting' > > vim +797 arch/x86/kernel/cpu/mtrr/main.c > > 788 > 789 void mtrr_ap_init(void) > 790 { > 791 if (!mtrr_enabled()) > 792 return; > 793 > 794 if (!use_intel() || mtrr_aps_delayed_init) > 795 return; > 796 > > 797 rcu_cpu_starting(smp_processor_id()); > 798 > 799 /* > 800 * Ideally we should hold mtrr_mutex here to avoid mtrr entries > 801 * changed, but this routine will be called in cpu boot time, > 802 * holding the lock breaks it. > 803 * > 804 * This routine is called in two cases: > 805 * > 806 * 1. very earily time of software resume, when there absolutely > 807 * isn't mtrr entry changes; > 808 * > 809 * 2. cpu hotadd time. We let mtrr_add/del_page hold cpuhotplug > 810 * lock to prevent mtrr entry changes > 811 */ > 812 set_mtrr_from_inactive_cpu(~0U, 0, 0, 0); > 813 } > 814 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
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