1 files changed, 86 insertions, 0 deletions
diff --git a/mod-extra.sh b/mod-extra.sh
new file mode 100755
index 000000000..7dc075b98
--- /dev/null
+++ b/mod-extra.sh
@@ -0,0 +1,86 @@
+#! /bin/bash
+
+Dir=$1
+List=$2
+Dest="extra"
+
+# Destination was specified on the command line
+test -n "$3" && Dest="$3"
+
+pushd $Dir
+rm -rf modnames
+find . -name "*.ko" -type f > modnames
+# Look through all of the modules, and throw any that have a dependency in
+# our list into the list as well.
+rm -rf dep.list dep2.list
+rm -rf req.list req2.list
+touch dep.list req.list
+cp "$List" .
+
+# This variable needs to be exported because it is used in sub-script
+# executed by xargs
+export ListName=$(basename "$List")
+
+# NB: this loop runs 2000+ iterations. Try to be fast.
+NPROC=`nproc`
+[ -z "$NPROC" ] && NPROC=1
+cat modnames | xargs -r -n1 -P $NPROC sh -c '
+  dep=$1
+  depends=`modinfo $dep | sed -n -e "/^depends/ s/^depends:[ \t]*//p"`
+  [ -z "$depends" ] && exit
+  for mod in ${depends//,/ }
+  do
+    match=$(grep "^$mod.ko" "$ListName")
+    [ -z "$match" ] && continue
+    # check if the module we are looking at is in mod-extra too.
+    # if so we do not need to mark the dep as required.
+    mod2=${dep##*/}  # same as `basename $dep`, but faster
+    match2=$(grep "^$mod2" "$ListName")
+    if [ -n "$match2" ]
+    then
+      #echo $mod2 >> notreq.list
+      continue
+    fi
+    echo $mod.ko >> req.list
+  done
+' DUMMYARG0   # xargs appends MODNAME, which becomes $dep in the script above
+
+sort -u req.list > req2.list
+sort -u "$ListName" > modules2.list
+join -v 1 modules2.list req2.list > modules3.list
+
+for mod in $(cat modules3.list)
+do
+  # get the path for the module
+  modpath=`grep /$mod modnames`
+  [ -z "$modpath" ] && continue
+  echo $modpath >> dep.list
+done
+
+sort -u dep.list > dep2.list
+
+# now move the modules into the extra/ directory
+for mod in `cat dep2.list`
+do
+  newpath=`dirname $mod | sed -e "s/kernel\\//$Dest\//"`
+  mkdir -p $newpath
+  mv $mod $newpath
+done
+
+popd
+
+# If we're signing modules, we can't leave the .mod files for the .ko files
+# we've moved in .tmp_versions/.  Remove them so the Kbuild 'modules_sign'
+# target doesn't try to sign a non-existent file.  This is kinda ugly, but
+# so is modules-extra.
+
+for mod in `cat ${Dir}/dep2.list`
+do
+  modfile=`basename $mod | sed -e 's/.ko/.mod/'`
+  rm .tmp_versions/$modfile
+done
+
+pushd $Dir
+rm modnames dep.list dep2.list req.list req2.list
+rm "$ListName" modules2.list modules3.list
+popd