Revert "Disable selftests/sched_ext (kernel-patches#321)"

This reverts commit 073e595.

Author: theihor

.github/scripts/matrix.py

@@ -98,8 +98,8 @@ def tests(self) -> Dict[str, Any]:
         if self.toolchain.version >= 18:
             tests_list.append("test_progs_cpuv4")
 
-        # if self.arch in [Arch.X86_64, Arch.AARCH64]:
-        #     tests_list.append("sched_ext")
+        if self.arch in [Arch.X86_64, Arch.AARCH64]:
+            tests_list.append("sched_ext")
 
         if not self.parallel_tests:
             tests_list = [test for test in tests_list if not test.endswith("parallel")]

.github/workflows/kernel-build.yml

@@ -48,7 +48,7 @@ jobs:
         ARTIFACTS_ARCHIVE: "vmlinux-${{ inputs.arch }}-${{ inputs.toolchain_full }}.tar.zst"
         BPF_NEXT_BASE_BRANCH: 'master'
         BPF_NEXT_FETCH_DEPTH: 64 # A bit of history is needed to facilitate incremental builds
-        # BUILD_SCHED_EXT_SELFTESTS: ${{ inputs.arch == 'x86_64' || inputs.arch == 'aarch64' && 'true' || '' }}
+        BUILD_SCHED_EXT_SELFTESTS: ${{ inputs.arch == 'x86_64' || inputs.arch == 'aarch64' && 'true' || '' }}
         KBUILD_OUTPUT: ${{ github.workspace }}/kbuild-output
         KERNEL: ${{ inputs.kernel }}
         KERNEL_ROOT: ${{ github.workspace }}