diff options
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 143aceaf9a9a..88cab45707a9 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1549,17 +1549,7 @@ void syscall_init(void) X86_EFLAGS_IOPL|X86_EFLAGS_AC|X86_EFLAGS_NT); } -static DEFINE_PER_CPU(unsigned long, debug_stack_addr); DEFINE_PER_CPU(int, debug_stack_usage); - -int is_debug_stack(unsigned long addr) -{ - return __this_cpu_read(debug_stack_usage) || - (addr <= __this_cpu_read(debug_stack_addr) && - addr > (__this_cpu_read(debug_stack_addr) - DEBUG_STKSZ)); -} -NOKPROBE_SYMBOL(is_debug_stack); - DEFINE_PER_CPU(u32, debug_idt_ctr); void debug_stack_set_zero(void) @@ -1735,7 +1725,6 @@ void cpu_init(void) t->x86_tss.ist[IST_INDEX_NMI] = __this_cpu_ist_top_va(NMI); t->x86_tss.ist[IST_INDEX_DB] = __this_cpu_ist_top_va(DB); t->x86_tss.ist[IST_INDEX_MCE] = __this_cpu_ist_top_va(MCE); - per_cpu(debug_stack_addr, cpu) = t->x86_tss.ist[IST_INDEX_DB]; } t->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET; |