build: Sync code with v25 branch

.github/workflows/build.yml

@@ -11,14 +11,6 @@ on:
         options:
         - true
         - false
-      first_kernel_compile:
-        description: 'First kernel compile'
-        required: true
-        default: 'true'
-        type: choice
-        options:
-        - true
-        - false
       test_build:
         description: 'Test build (only spec target) '
         required: true
@@ -52,7 +44,6 @@ on:
         type: string
 
 env:
-  FIRST_KERNEL_COMPILE:  ${{ github.event.inputs.first_kernel_compile == 'true' }}
   TEST_BUILD: ${{ github.event.inputs.test_build == 'true' }}
   FAKE_BUILD: ${{ github.event.inputs.fake_build == 'true' }}
   TAG_SUFFIX: ${{ github.event.inputs.fake_build == 'true' && '-fake' || github.event.inputs.test_build == 'true' && '-test' || '' }}
@@ -210,15 +201,6 @@ jobs:
           chmod +x *.sh
           wget https://github.com/fantastic-packages/packages/raw/refs/heads/24.10/keys/usign/53FF2B6672243D28.pub
 
-      - name: Cache downloads (dl)
-        if: false
-        uses: actions/cache@v4
-        with:
-          path: dl
-          key: dl-${{ hashFiles('feeds.conf.default') }}
-          restore-keys: |
-            dl-
-
       - name: Update OpenWrt packages
         id: update
         env: 
@@ -231,6 +213,8 @@ jobs:
           if [ "$USE_CACHE" = "true" ]; then
               rm -rf staging_dir/
               mkdir -p staging_dir/host
+              rm -rf build_dir/
+              mkdir -p build_dir/host
           fi
 
       - name: Restore cache for host tools
@@ -238,9 +222,10 @@ jobs:
         if: github.event.inputs.use_cache == 'true'
         uses: actions/cache/restore@v4
         with:
-          key: host-tools-${{ runner.os }}-${{ needs.check.outputs.fw_ver }}-${{ hashFiles('tools/**') }}
+          key: host-tools-${{ runner.os }}-${{ hashFiles('tools/**') }}
           path: |
             staging_dir/host
+            build_dir/host
 
       - name: Configure
         id: configure
@@ -313,21 +298,23 @@ jobs:
           key: ${{ steps.tools_cache_restore.outputs.cache-primary-key }}
           path: |
             staging_dir/host
+            build_dir/host
 
       - name: Save cache for host tools (use_cache = false)
         id: tools_cache_save_2
         if: steps.tools.outputs.status == 'success' && github.event.inputs.use_cache != 'true'
         uses: actions/cache/save@v4
         with:
-          key: host-tools-${{ runner.os }}-${{ needs.check.outputs.fw_ver }}-${{ hashFiles('tools/**') }}
+          key: host-tools-${{ runner.os }}-${{ hashFiles('tools/**') }}
           path: |
             staging_dir/host
+            build_dir/host
 
-      - name: Kernel compile
+      - name: Kernel compile and install
         id: kernel
-        if: ${{ steps.tools.outputs.status == 'success' && github.event.inputs.first_kernel_compile == 'true' && github.event.inputs.fake_build != 'true' }}
+        if: ${{ steps.tools.outputs.status == 'success' && github.event.inputs.fake_build != 'true' }}
         run: |
-          make target/linux/compile -j$(nproc)
+          make target/linux/install -j$(nproc)
           echo "status=success" >> $GITHUB_OUTPUT
 
       - name: Monitor memory 2
@@ -342,7 +329,7 @@ jobs:
 
       - name: Build the firmware image
         id: compile
-        if: steps.tools.outputs.status == 'success'
+        if: steps.tools.outputs.status == 'success' && steps.kernel.outputs.status == 'success'
         env: 
           TARGET: ${{ matrix.target }}
         run: |