Revert "Core: Export every XDP action from pythonbpf.helper"

This reverts commit 55fb6d6.

Author: r41k0u

pythonbpf/helper/__init__.py

@@ -18,11 +18,8 @@
     skb_store_bytes,
     get_current_cgroup_id,
     get_stack,
-    XDP_ABORTED,
     XDP_DROP,
     XDP_PASS,
-    XDP_TX,
-    XDP_REDIRECT,
 )
 
 
@@ -89,9 +86,6 @@ def helper_call_handler(call, compilation_context, builder, func, local_sym_tab)
     "uid",
     "skb_store_bytes",
     "get_stack",
-    "XDP_ABORTED",
     "XDP_DROP",
     "XDP_PASS",
-    "XDP_TX",
-    "XDP_REDIRECT",
 ]

tests/kernel_selftest_equivalent/xdp/xdp_tx.py

@@ -3,15 +3,18 @@
 # Bounce every packet back out of the interface it arrived on. Upstream is
 # the transmit side of the veth XDP tests.
 #
+# XDP_TX comes from vmlinux because pythonbpf.helper exports only XDP_PASS
+# and XDP_DROP; that is why this lives under vmlinux/.
+
 from pythonbpf import bpf, section, bpfglobal, compile
-from pythonbpf.helper import XDP_TX
+from vmlinux import XDP_TX
 from ctypes import c_void_p, c_int64
 
 
 @bpf
 @section("xdp")
 def xdp_tx(xdp: c_void_p) -> c_int64:
-    return XDP_TX  # bare, like the C: resolved by the return fast path
+    return c_int64(XDP_TX)
 
 
 @bpf