selftests: drv-net: use cfg.rpath() in netlink xsk attr test

The cfg.rpath() helper was been recently added to make formatting
paths for helper binaries easier.

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Tested-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20250219234956.520599-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/drivers/net/queues.py b/tools/testing/selftests/drivers/net/queues.py
index 5fdfebc6415f4466e52b124c028692819a068bdb..b6896a57a5fd26fd7033dc74880f05b3b47488f2 100755 (executable)
--- a/tools/testing/selftests/drivers/net/queues.py
+++ b/tools/testing/selftests/drivers/net/queues.py
@@ -25,8 +25,7 @@ def nl_get_queues(cfg, nl, qtype='rx'):
     return None
 
 def check_xdp(cfg, nl, xdp_queue_id=0) -> None:
-    test_dir = os.path.dirname(os.path.realpath(__file__))
-    xdp = subprocess.Popen([f"{test_dir}/xdp_helper", f"{cfg.ifindex}", f"{xdp_queue_id}"],
+    xdp = subprocess.Popen([cfg.rpath("xdp_helper"), f"{cfg.ifindex}", f"{xdp_queue_id}"],
                            stdin=subprocess.PIPE, stdout=subprocess.PIPE, bufsize=1,
                            text=True)
     defer(xdp.kill)