diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2020-05-30 00:27:37 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 16:15:23 +0300 |
| commit | f9912ada82862df341b3e86864cbd532d0d24b84 (patch) | |
| tree | 4f66fac62be28d505c49dd4b974f7660d4c23c25 /arch/x86/kernel/traps.c | |
| parent | 84b6a3491567a540f955e18d8e615493afa36df0 (diff) | |
| download | linux-f9912ada82862df341b3e86864cbd532d0d24b84.tar.xz | |
x86/entry: Remove debug IDT frobbing
This is all unused now.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200529213321.245019500@infradead.org
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index bcb9dd961c6d..6f887be1ac0c 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -798,12 +798,6 @@ static void noinstr handle_debug(struct pt_regs *regs, unsigned long dr6, return; } - /* - * Let others (NMI) know that the debug stack is in use - * as we may switch to the interrupt stack. - */ - debug_stack_usage_inc(); - /* It's safe to allow irq's after DR6 has been saved */ cond_local_irq_enable(regs); @@ -831,7 +825,6 @@ static void noinstr handle_debug(struct pt_regs *regs, unsigned long dr6, out: cond_local_irq_disable(regs); - debug_stack_usage_dec(); instrumentation_end(); } @@ -1077,6 +1070,4 @@ void __init trap_init(void) cpu_init(); idt_setup_ist_traps(); - - idt_setup_debugidt_traps(); } |