stp1 51 arch/arm64/lib/copy_from_user.S .macro stp1 ptr, regB, regC, val stp1 52 arch/arm64/lib/copy_in_user.S .macro stp1 ptr, regB, regC, val stp1 50 arch/arm64/lib/copy_to_user.S .macro stp1 ptr, regB, regC, val stp1 55 arch/arm64/lib/memcpy.S .macro stp1 ptr, regB, regC, val