Add fake kernel patch to fix sus_maps build errors

Author: fatalcoder524

.github/actions/action.yml

@@ -306,7 +306,46 @@ runs:
             sed -i '/#include <trace\/hooks\/blk.h>/a #include <trace\/hooks\/fs.h>' ./fs/namespace.c
           fi
         fi
+        
+        # Fake kernel patch to fix failures
+        fake_patched=0
+        if [ "${{ env.ANDROID_VER }}" = "android15" ] && [ "${{ env.KERNEL_VER }}" = "6.6" ]; then
+          if ! grep -qxF 'unsigned int nr_subpages = __PAGE_SIZE / PAGE_SIZE;' ./fs/proc/task_mmu.c; then
+            echo "nr_subpages Line not found. Fake Patching!"
+            sed -i -e '/int ret = 0, copied = 0;/a \\tunsigned int nr_subpages \= __PAGE_SIZE \/ PAGE_SIZE;' -e '/int ret = 0, copied = 0;/a \\tpagemap_entry_t \*res = NULL;' ./fs/proc/task_mmu.c
+            fake_patched=1
+          fi
+        fi
+        if [ "${{ env.ANDROID_VER }}" = "android12" ] && [ "${{ env.KERNEL_VER }}" = "5.10" ]; then
+          if ! grep -qxF 'if (!vma_pages(vma))' ./fs/proc/task_mmu.c; then
+            echo "vma_pages Line not found. Fake Patching!"
+            sed -i '/memset(&mss, 0, sizeof(mss));/,/smap_gather_stats(vma, &mss, 0);/ {
+            /smap_gather_stats(vma, &mss, 0);/ i\
+            \tif (!vma_pages(vma))\
+            \t\tgoto show_pad;\n
+            }' ./fs/proc/task_mmu.c
+            fake_patched=1
+          fi
+        fi
+        
         patch -p1 < 50_add_susfs_in_${{ env.SUSFS_KERNEL_BRANCH }}.patch || true
+        
+        # Revert Fake kernel patch
+        if [ "$fake_patched" = 1 ]; then
+          if [ "${{ env.ANDROID_VER }}" = "android15" ] && [ "${{ env.KERNEL_VER }}" = "6.6" ]; then
+            if grep -qxF 'unsigned int nr_subpages = __PAGE_SIZE / PAGE_SIZE;' ./fs/proc/task_mmu.c; then
+              echo "nr_subpages Line found. Revert Fake Patching!"
+              sed -i -e '/unsigned int nr_subpages \= __PAGE_SIZE \/ PAGE_SIZE;/d' -e '/pagemap_entry_t \*res = NULL;/d' ./fs/proc/task_mmu.c
+            fi
+          fi
+          if [ "${{ env.ANDROID_VER }}" = "android12" ] && [ "${{ env.KERNEL_VER }}" = "5.10" ]; then
+            if grep -qxF 'if (!vma_pages(vma))' ./fs/proc/task_mmu.c; then
+              echo "vma_pages Line found. Revert Fake Patching!"
+              sed -i -e '/if (!vma_pages(vma))/,/goto show_pad;/d' -e 's/goto show_pad;/return 0;/' ./fs/proc/task_mmu.c
+            fi
+          fi
+        fi
+        
         KERNEL_VERSION="${{ env.KERNEL_VER }}"
         MIN_VERSION="5.16"
         if [ "$(printf '%s\n' "$KERNEL_VERSION" "$MIN_VERSION" | sort -V | head -n1)" = "$KERNEL_VERSION" ]; then