x86: remove TRAP_FLAG

This gets rid of the local constant macro TRAP_FLAG.
It's redundant with the public constant macro X86_EFLAGS_TF.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 3 insertions, 6 deletions

diff --git a/arch/x86/kernel/ptrace_32.c b/arch/x86/kernel/ptrace_32.c
index 09227cfb7c4c..4619bda470b6 100644
--- a/arch/x86/kernel/ptrace_32.c
+++ b/arch/x86/kernel/ptrace_32.c
@@ -37,9 +37,6 @@
  */
 #define FLAG_MASK 0x00050dd5
 
-/* set's the trap flag. */
-#define TRAP_FLAG 0x100
-
 /*
  * Offset of eflags on child stack..
  */
@@ -235,11 +232,11 @@ static void set_singlestep(struct task_struct *child)
         /*
          * If TF was already set, don't do anything else
          */
-        if (regs->eflags & TRAP_FLAG)
+        if (regs->eflags & X86_EFLAGS_TF)
                 return;
 
         /* Set TF on the kernel stack.. */
-        regs->eflags |= TRAP_FLAG;
+        regs->eflags |= X86_EFLAGS_TF;
 
         /*
          * ..but if TF is changed by the instruction we will trace,
@@ -260,7 +257,7 @@ static void clear_singlestep(struct task_struct *child)
         /* But touch TF only if it was set by us.. */
         if (child->ptrace & PT_DTRACE) {
                 struct pt_regs *regs = get_child_regs(child);
-                regs->eflags &= ~TRAP_FLAG;
+                regs->eflags &= ~X86_EFLAGS_TF;
                 child->ptrace &= ~PT_DTRACE;
         }
 }