sc_user_fp 11 arch/csky/include/uapi/asm/sigcontext.h struct user_fp sc_user_fp; sc_user_fp 21 arch/csky/kernel/signal.c err = __copy_from_user(&user_fp, &sc->sc_user_fp, sizeof(user_fp)); sc_user_fp 34 arch/csky/kernel/signal.c return __copy_to_user(&sc->sc_user_fp, &user_fp, sizeof(user_fp));