fix xfail mark

Author: leofang

cuda_core/tests/test_program.py

@@ -13,7 +13,6 @@
 from cuda.core.experimental._module import Kernel, ObjectCode
 
 
-@pytest.fixture
 def can_load_generated_ptx():
     _, driver_ver = cuda.cuDriverGetVersion()
     _, nvrtc_major, nvrtc_minor = nvrtc.nvrtcVersion()
@@ -42,7 +41,7 @@ def test_program_init_invalid_code_format():
 
 
 # TODO: incorporate this check in Program
-@pytest.mark.xfail(not can_load_generated_ptx, reason="PTX version too new")
+@pytest.mark.xfail(not can_load_generated_ptx(), reason="PTX version too new")
 def test_program_compile_valid_target_type():
     code = 'extern "C" __global__ void my_kernel() {}'
     program = Program(code, "c++")