ci: Disable BPF-specific jobs for netdev PRs

.github/scripts/matrix.py

@@ -135,6 +135,7 @@ class BuildConfig:
     run_veristat: bool = False
     parallel_tests: bool = False
     build_release: bool = False
+    is_netdev: bool = False
 
     @property
     def runs_on(self) -> List[str]:
@@ -184,7 +185,7 @@ def tests(self) -> Dict[str, Any]:
         if self.llvm_version >= 18:
             tests_list.append("test_progs_cpuv4")
 
-        if self.arch in [Arch.X86_64, Arch.AARCH64]:
+        if self.arch in [Arch.X86_64, Arch.AARCH64] and not self.is_netdev:
             tests_list.append("sched_ext")
 
         # Don't run GCC BPF runner, because too many tests are failing
@@ -207,6 +208,7 @@ def to_dict(self) -> Dict[str, Any]:
             "run_veristat": self.run_veristat,
             "parallel_tests": self.parallel_tests,
             "build_release": self.build_release,
+            "is_netdev": self.is_netdev,
             "runs_on": self.runs_on,
             "tests": self.tests,
             "build_runs_on": self.build_runs_on,
@@ -270,6 +272,17 @@ def generate_test_config(test: str) -> Dict[str, Union[str, int]]:
     if not is_managed_repo():
         matrix = [config for config in matrix if config.arch == Arch.X86_64]
 
+    # Detect netdev PRs: head repo is linux-netdev/testing-bpf-ci and branch is to-test
+    pr_head_repo = os.environ.get("PR_HEAD_REPO", "")
+    head_ref = os.environ.get("GITHUB_HEAD_REF", "")
+    is_netdev = pr_head_repo == "linux-netdev/testing-bpf-ci" and head_ref == "to-test"
+    if is_netdev:
+        print("Netdev PR detected, disabling BPF-specific jobs")
+        for config in matrix:
+            config.run_veristat = False
+            config.build_release = False
+            config.is_netdev = True
+
     json_matrix = json.dumps({"include": [config.to_dict() for config in matrix]})
     print(json.dumps(json.loads(json_matrix), indent=4))
     set_output("build_matrix", json_matrix)

.github/workflows/kernel-build-test.yml

@@ -57,6 +57,11 @@ on:
         type: boolean
         description: Build selftests with -O2 optimization in addition to non-optimized build.
         default: false
+      is_netdev:
+        required: true
+        type: boolean
+        description: Whether this is a netdev PR. When true, BPF-specific jobs like GCC BPF are skipped.
+        default: false
     secrets:
       AWS_ROLE_ARN:
         required: true
@@ -179,7 +184,7 @@ jobs:
 
   gcc-bpf:
     name: 'GCC BPF'
-    if: ${{ inputs.arch == 'x86_64' }}
+    if: ${{ inputs.arch == 'x86_64' && !inputs.is_netdev }}
     uses: ./.github/workflows/gcc-bpf.yml
     needs: [build]
     with:

.github/workflows/test.yml

@@ -33,6 +33,7 @@ jobs:
       - id: set-matrix-impl
         env:
           GITHUB_TOKEN: ${{ secrets.GH_PAT_READ_RUNNERS }}
+          PR_HEAD_REPO: ${{ github.event.pull_request.head.repo.full_name }}
         run: |
           python3 .github/scripts/matrix.py
 
@@ -64,5 +65,6 @@ jobs:
       # Download sources
       download_sources: ${{ github.repository == 'kernel-patches/vmtest' }}
       build_release: ${{ matrix.build_release }}
+      is_netdev: ${{ matrix.is_netdev }}
     secrets:
       AWS_ROLE_ARN: ${{ secrets.AWS_ROLE_ARN }}