x86_64: ia32_signal.c: use macro instead of immediate

Make and use macro FIX_EFLAGS, instead of immediate value 0x40DD5 in
ia32_restore_sigcontext().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 1 deletions

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index cb3856a18c85..dc9b9b9803f6 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -36,6 +36,11 @@
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
+#define FIX_EFLAGS      (X86_EFLAGS_AC | X86_EFLAGS_OF | \
+                         X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
+                         X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
+                         X86_EFLAGS_CF)
+
 asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 
@@ -248,7 +253,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
         regs->ss |= 3;
 
         err |= __get_user(tmpflags, &sc->flags);
-        regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
+        regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
         /* disable syscall checks */
         regs->orig_ax = -1;