Update workflow and stuff

Author: Darksonn

.github/workflows/ci.yml

@@ -18,6 +18,10 @@ jobs:
             config: generic.config no-jump-label.config
             bindgen: latest
             rustc: stable
+          - arch: riscv
+            config: generic.config no-mmu.config
+            bindgen: latest
+            rustc: stable
           - arch: x86_64
             config: generic.config
             bindgen: latest
@@ -108,20 +112,24 @@ jobs:
       with:
         components: rustfmt, rust-src
     - name: Check formatting
-      run: make -C linux LLVM=1 rustfmt
+      run: make -C linux LLVM=1 rustfmtcheck
 
   checkpatch:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
-        fetch-depth: 2
+        fetch-depth: 20
     - name: Fetch referenced commits
       working-directory: linux
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
+        if git rev-parse --verify HEAD^2 >/dev/null 2>&1; then
+          git checkout --detach HEAD^1
+        fi
+
         HASHES=$(git log -1 --pretty=%B | tr '\n' ' ' | grep -oP '(?:commit|[\w-]+:)\s+\K[0-9a-f]{12,40}' | sort -u)
 
         for HASH in $HASHES; do

configs/generic.config

@@ -6,6 +6,7 @@ CONFIG_JUMP_LABEL=y
 CONFIG_RUST_FW_LOADER_ABSTRACTIONS=y
 CONFIG_KUNIT=y
 CONFIG_RUST_KERNEL_DOCTESTS=y
+CONFIG_WERROR=y
 
 CONFIG_DRM=y
 CONFIG_DRM_NOVA=m
@@ -31,4 +32,4 @@ CONFIG_SAMPLE_RUST_DRIVER_PLATFORM=m
 CONFIG_SAMPLE_RUST_DRIVER_USB=m
 CONFIG_SAMPLE_RUST_DRIVER_FAUX=m
 CONFIG_SAMPLE_RUST_DRIVER_AUXILIARY=m
-CONFIG_SAMPLE_RUST_HOSTPROGS=y
+CONFIG_SAMPLE_RUST_HOSTPROGS=y

configs/no-mmu.config

@@ -0,0 +1 @@
+# CONFIG_MMU is not set

linux

@@ -0,0 +1,91 @@
+#!/bin/bash
+set -e
+
+SLEEP_SEC=""
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -s|--sleep)
+      SLEEP_SEC="$2"
+      shift 2
+      ;;
+    *)
+      break
+      ;;
+  esac
+done
+
+if [[ $# -lt 2 ]]; then
+  echo "Usage: $0 [-s seconds] <base-commit> <tip-commit>"
+  echo "Example: $0 origin/master b4/driver-types"
+  exit 1
+fi
+
+BASE_COMMIT="$1"
+TIP_COMMIT="$2"
+
+# Fix commits to apply (hardcoded for now)
+# 780b05710047: rust_binder: Fix build failure if !CONFIG_COMPAT
+# c658b7542cb9: rust: bitops: fix missing _find_* functions on 32-bit ARM
+FIXES="780b05710047 c658b7542cb9"
+
+# Prepare Fixes Branch
+echo "Preparing fixes branch based on $BASE_COMMIT..."
+(
+  cd linux
+  # Create/Reset ci/base-fixes branch
+  git checkout -B ci/base-fixes "$BASE_COMMIT" > /dev/null 2>&1
+  for FIX in $FIXES; do
+    git cherry-pick "$FIX" > /dev/null
+  done
+)
+
+# Get list of commits to test (oldest to newest)
+echo "Generating list of commits between $BASE_COMMIT and $TIP_COMMIT..."
+COMMITS=$(cd linux && git rev-list --reverse "${BASE_COMMIT}..${TIP_COMMIT}")
+
+if [[ -z "$COMMITS" ]]; then
+  echo "No commits found in range."
+  exit 0
+fi
+
+echo "Found $(echo "$COMMITS" | wc -l) commits to test."
+
+for COMMIT in $COMMITS; do
+  SHORT_COMMIT=$(echo "$COMMIT" | cut -c1-12)
+  echo "========================================"
+  echo "Processing submodule commit $SHORT_COMMIT"
+  echo "========================================"
+  
+  # 1. Prepare Submodule
+  echo "Preparing submodule..."
+  (
+    cd linux
+    git checkout --detach "$COMMIT" > /dev/null 2>&1
+    # Merge fixes
+    git merge --no-edit ci/base-fixes > /dev/null
+    # Push to a stable ref for the submodule
+    git push --force origin HEAD:refs/heads/ci/fixes
+  )
+
+  # 2. Update Parent
+  echo "Updating parent repository..."
+  git add linux
+  # Amend the previous commit to avoid creating a huge history in the parent if running repeatedly? 
+  # But we want to test each one.
+  git commit -m "ci: Update submodule to $SHORT_COMMIT (testing)"
+
+  # 3. Push Parent
+  echo "Pushing to CI..."
+  git push --force origin ci/actions
+
+  # 4. Wait
+  if [[ -n "$SLEEP_SEC" ]]; then
+    echo "Sleeping for $SLEEP_SEC seconds..."
+    sleep "$SLEEP_SEC"
+  else
+    echo "Check GitHub Actions: https://github.com/Darksonn/linux/actions"
+    read -p "Press Enter when the CI job has started to proceed to the next commit..."
+  fi
+done
+
+echo "Done!"