ARM: Use a definition for the userspace cmpxchg emulation syscall

Use a definition for the cmpxchg SWI instead of hard-coding the number.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Nicolas Pitre <nico@fluxnic.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 1bbda04a5380..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);