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Date: Tue, 17 May 2022 17:19:04 +0800 From: kernel test robot <lkp@...el.com> To: Jiri Olsa <jolsa@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Masami Hiramatsu <mhiramat@...nel.org>, "Paul E. McKenney" <paulmck@...nel.org> Cc: kbuild-all@...ts.01.org, netdev@...r.kernel.org, bpf@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>, Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...omium.org>, Steven Rostedt <rostedt@...dmis.org> Subject: Re: [PATCH bpf-next 1/2] cpuidle/rcu: Making arch_cpu_idle and rcu_idle_exit noinstr Hi Jiri, I love your patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Jiri-Olsa/cpuidle-rcu-Making-arch_cpu_idle-and-rcu_idle_exit-noinstr/20220516-043752 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: x86_64-randconfig-a014-20220516 (https://download.01.org/0day-ci/archive/20220517/202205171711.hqxFhp5l-lkp@intel.com/config) compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/0b6fee32d730f621f2bfc4d8d9f0729814398415 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jiri-Olsa/cpuidle-rcu-Making-arch_cpu_idle-and-rcu_idle_exit-noinstr/20220516-043752 git checkout 0b6fee32d730f621f2bfc4d8d9f0729814398415 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@...el.com> All warnings (new ones prefixed by >>): vmlinux.o: warning: objtool: vmx_l1d_flush()+0x13: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: vmx_vcpu_enter_exit()+0x29: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: vmx_update_host_rsp()+0x3e: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: arch_cpu_idle()+0xb: call to {dynamic}() leaves .noinstr.text section >> vmlinux.o: warning: objtool: rcu_idle_exit()+0x25: call to trace_hardirqs_on() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode()+0x1c: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x21: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x1c: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: exit_to_user_mode()+0x1b: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_exit_to_user_mode()+0x36: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x1c: call to __kcsan_check_access() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_exit_to_user_mode()+0x22: call to static_key_count() leaves .noinstr.text section -- 0-DAY CI Kernel Test Service https://01.org/lkp
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