Re: [PATCH v2] lib_backtrace: fix kernel text address leak

[Liu, Changcheng]

Don't leak idle function address in NMI backtrace.

Signed-off-by: Liu Changcheng <changcheng....@intel.com>

diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c
index 46e4c749..61a6b5a 100644
--- a/lib/nmi_backtrace.c
+++ b/lib/nmi_backtrace.c
@@ -93,8 +93,8 @@ bool nmi_cpu_backtrace(struct pt_regs *regs)
        if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) {
                arch_spin_lock(&lock);
                if (regs && cpu_in_idle(instruction_pointer(regs))) {
-                       pr_warn("NMI backtrace for cpu %d skipped: idling at pc 
%#lx\n",
-                               cpu, instruction_pointer(regs));
+                       pr_warn("NMI backtrace for cpu %d skipped: idling at 
%pS\n",
+                               cpu, (void *)instruction_pointer(regs));
                } else {
                        pr_warn("NMI backtrace for cpu %d\n", cpu);
                        if (regs)
-- 
2.7.4