FP_XSTATE_MAGIC2
#define FP_XSTATE_MAGIC2_SIZE sizeof(FP_XSTATE_MAGIC2)
err |= __put_user(FP_XSTATE_MAGIC2,
if (likely(magic2 == FP_XSTATE_MAGIC2))
if (*(__u32 *)magic2_addr != FP_XSTATE_MAGIC2)
__put_user(FP_XSTATE_MAGIC2,
if (magic2 == FP_XSTATE_MAGIC2)