1 files changed, 2 insertions, 2 deletions

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 95718a6b50a6..3f361a783f43 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -528,7 +528,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
          * __kuser_cmpxchg code in entry-armv.S should be aware of its
          * existence.  Don't ever use this from user code.
          */
-        case 0xfff0:
+        case NR(cmpxchg):
         for (;;) {
                 extern void do_DataAbort(unsigned long addr, unsigned int fsr,
                                          struct pt_regs *regs);
@@ -573,7 +573,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
                    if not implemented, rather than raising SIGILL.  This
                    way the calling program can gracefully determine whether
                    a feature is supported.  */
-                if (no <= 0x7ff)
+                if ((no & 0xffff) <= 0x7ff)
                         return -ENOSYS;
                 break;
         }