ci: add concurrency groups to all pr triggered workflows

.github/workflows/build_all.yml

@@ -11,6 +11,12 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
 
   stub-build:

.github/workflows/codeql.yml

@@ -9,9 +9,9 @@ on:
 permissions:
   contents: read
 
-# Specifies group name that stops previous workflows if the name matches
+# Group workflows together to cancel outdated runs
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:

.github/workflows/codestyle.yml

@@ -17,6 +17,12 @@ on: [pull_request, workflow_call, workflow_dispatch]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   yamllint:
     runs-on: ubuntu-latest

.github/workflows/ipc_fuzzer.yml

@@ -25,6 +25,12 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
 
   simple-IPC-fuzz_sh:

.github/workflows/llext.yml

@@ -14,6 +14,12 @@ defaults:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-24.04

.github/workflows/pull-request.yml

@@ -34,6 +34,12 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
 
   doxygen:

.github/workflows/repro-build.yml

@@ -17,6 +17,12 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   main:
     runs-on: ubuntu-24.04

.github/workflows/rimage.yml

@@ -25,6 +25,12 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
 
   # Basic build test

.github/workflows/sof-docs.yml

@@ -20,6 +20,12 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
 
   # This is unfortunately a mix of sof-docs/.github/ + pull-request.yml#doxygen

.github/workflows/sparse-zephyr.yml

@@ -14,6 +14,12 @@ defaults:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   # As of sparse commit ce1a6720f69e / Sept 2022, the exit status of
   # sparse.c is an unusable mess and always zero in practice. Moreover

.github/workflows/testbench.yml

@@ -31,6 +31,12 @@ on:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   build-and-test:
     runs-on: ubuntu-24.04

.github/workflows/tools.yml

@@ -10,6 +10,12 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   # This is not the same as building every ./build-tools.sh option.
   top-level_default_CMake_target_ALL:

.github/workflows/unit-tests.yml

@@ -13,6 +13,12 @@ on: [pull_request, workflow_dispatch, workflow_call]
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   cmocka_utests:
     runs-on: ubuntu-latest

.github/workflows/zephyr-shell.yml

@@ -23,6 +23,12 @@ defaults:
 permissions:
   contents: read
 
+# Group workflows together to cancel outdated runs, do not cancel manual runs
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-24.04

.github/workflows/zephyr-unit-tests.yml

@@ -1,5 +1,5 @@
 ---
-name: "Unit tests"
+name: "Zephyr Unit tests"
 # yamllint disable-line rule:truthy
 on:
   pull_request:
@@ -9,9 +9,9 @@ on:
 permissions:
   contents: read
 
-# Specifies group name that stops previous workflows if the name matches
+# Group workflows together to cancel outdated runs
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:

.github/workflows/zephyr.yml

@@ -17,11 +17,12 @@ on:
         required: false
         default: 'mnfst'
 
-# Specifies group name that stops previous wokrflows if the name matches
+# Group workflows together to cancel outdated runs, do not cancel manual runs
 concurrency:
-  # eg. "Zephyr-pull_request-my_fork_branch_to_merge"
-  # eg. "Zephyr-push-refs/heads/my_branch_merging"
-  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  # eg. 'Zephyr-workflow_dispatch-62137'
+  # eg. 'Zephyr-pull_request-refs/pull/{pr_number}/merge'
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
   cancel-in-progress: true
 
 permissions:

.github/workflows/zizmor.yml

@@ -11,9 +11,10 @@ on:
 
 permissions: {}
 
-# Specifies group name that stops previous workflows if the name matches
+# Group workflows together to cancel outdated runs, do not cancel manual runs
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  group: "${{ github.workflow }}-${{ github.event_name }}-\
+          ${{ github.event_name == 'pull_request' && github.ref || github.run_id }}"
   cancel-in-progress: true
 
 jobs: