diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h index 23c626a742e8..ea91049058d8 100644 --- a/arch/x86/include/asm/text-patching.h +++ b/arch/x86/include/asm/text-patching.h @@ -85,6 +85,9 @@ static inline void int3_emulate_push(struct pt_regs *regs, unsigned long val) * stack where the break point happened, and the saving of * pt_regs. We can extend the original stack because of * this gap. See the idtentry macro's create_gap option. + * + * Similarly entry_32.S will have a gap on the stack for (any) hardware + * exception and pt_regs; see FIXUP_FRAME. */ regs->sp -= sizeof(unsigned long); *(unsigned long *)regs->sp = val;