x86, xsave: use BUG_ON() instead of BUILD_BUG_ON()

All these structure sizes are runtime determined. So use a runtime
bug check.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index bb097b1644d8..07713d64debe 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -82,8 +82,7 @@ int save_i387_xstate(void __user *buf)
         if (!access_ok(VERIFY_WRITE, buf, sig_xstate_size))
                 return -EACCES;
 
-        BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
-                        sizeof(tsk->thread.xstate->fxsave));
+        BUG_ON(sig_xstate_size < xstate_size);
 
         if ((unsigned long)buf % 64)
                 printk("save_i387_xstate: bad fpstate %p\n", buf);