PKGBUILD

@@ -35,6 +35,17 @@
 # Set to anything but null to activate.
 : "${_use_current:=""}"
 
+# Apply selected optimizations chosen by
+# the package maintainers to the config.
+#
+# Only takes effect if '_use_current'
+# is enabled. Keep disabled if you want
+# to reuse your existing kernel configuration
+# without any changes being applied to it.
+#
+# Set to anything but null to activate.
+: "${_optimize_defconfig:=""}"
+
 # Determines whether the kernel configuration should be
 # copied into the source tree before compilation starts.
 # 
@@ -176,6 +187,16 @@ apply_patches() {
     done
 }
 
+# Allows user to modify the kernel config
+modify_defconfig() {
+    [[ -n "$_makemenuconfig" ]] && make ${BUILD_FLAGS[*]} menuconfig
+    [[ -n "$_makexconfig" ]] && make ${BUILD_FLAGS[*]} xconfig
+    [[ -n "$_makenconfig" ]] && make ${BUILD_FLAGS[*]} nconfig
+
+    # Don't crash if all three are false
+    true
+}
+
 # Copies the kernel config
 copy_defconfig() {
     local "_cur_major_ver=$(zcat /proc/config.gz | grep Linux | grep -o '[0-9]*[0-9]\.[0-9]*[0-9]')"
@@ -291,15 +312,6 @@ update_defconfig() {
     [[ -n "${_subarch}" ]] && yes "${_subarch}" | make ${BUILD_FLAGS[*]} oldconfig
     # Ask for subarch
     [[ -z "${_subarch}" ]] && make ${BUILD_FLAGS[*]} oldconfig
-
-    # Open configuration editors
-    [[ -n "$_makemenuconfig" ]] && make ${BUILD_FLAGS[*]} menuconfig
-    [[ -n "$_makexconfig" ]] && make ${BUILD_FLAGS[*]} xconfig
-    [[ -n "$_makenconfig" ]] && make ${BUILD_FLAGS[*]} nconfig
-
-    # Save configuration
-    # shellcheck disable=SC2015
-    [[ -n "${_copyfinalconfig}" ]] && cp -Tf ./.config "${startdir}/kconfig-new" || true
 }
 
 # Prepares the installation
@@ -309,7 +321,7 @@ prepare() {
     apply_patches
 
     [[ -n "${_use_current}" ]] && copy_defconfig
-    [[ -z "${_use_current}" ]] && update_defconfig
+    [[ -n "${_optimize_defconfig}" ]] || [[ -z "${_use_current}" ]] && update_defconfig
 
     # Read and apply modprobed database
     # See https://aur.archlinux.org/packages/modprobed-db
@@ -320,6 +332,13 @@ prepare() {
             echo ":: No modprobed.db file was found at ${HOME}/.config, skipping"
         fi
 
+    # Open configuration editors
+    modify_defconfig
+
+    # Save configuration
+    # shellcheck disable=SC2015
+    [[ -n "${_copyfinalconfig}" ]] && cp -Tf ./.config "${startdir}/kconfig-new" || true
+
     # Write kernel version
     make -s kernelrelease > version
 }