scripts/nsdeps: make sure to pass all module source files to spatch

The nsdeps script passes a list of the module source files to
generate_deps_for_ns() as a space delimited string named $mod_source_files,
which then passes it to spatch. But since $mod_source_files is not encased
in quotes, each source file in that string is treated as a separate shell
function argument (as $2, $3, $4, etc.).  However, the spatch invocation
only refers to $2, so only the first file out of $mod_source_files is
processed by spatch.

This causes problems (namely, the MODULE_IMPORT_NS() statement doesn't
get inserted) when a module is composed of many source files and the
"main" module file containing the MODULE_LICENSE() statement is not the
first file listed in $mod_source_files. Fix this by encasing
$mod_source_files in quotes so that the entirety of the string is
treated as a single argument and can be referred to as $2.

In addition, put quotes in the variable assignment of mod_source_files
to prevent any shell interpretation and field splitting.

Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>

diff --git a/scripts/nsdeps b/scripts/nsdeps
index dda6fba..04cea09 100644 (file)
--- a/scripts/nsdeps
+++ b/scripts/nsdeps
@@ -31,12 +31,12 @@ generate_deps() {
        local mod_file=`echo $@ | sed -e 's/\.ko/\.mod/'`
        local ns_deps_file=`echo $@ | sed -e 's/\.ko/\.ns_deps/'`
        if [ ! -f "$ns_deps_file" ]; then return; fi
-       local mod_source_files=`cat $mod_file | sed -n 1p                      \
+       local mod_source_files="`cat $mod_file | sed -n 1p                      \
                                              | sed -e 's/\.o/\.c/g'           \
-                                             | sed "s|[^ ]* *|${srctree}/&|g"`
+                                             | sed "s|[^ ]* *|${srctree}/&|g"`"
        for ns in `cat $ns_deps_file`; do
                echo "Adding namespace $ns to module $mod_name (if needed)."
-               generate_deps_for_ns $ns $mod_source_files
+               generate_deps_for_ns $ns "$mod_source_files"
                # sort the imports
                for source_file in $mod_source_files; do
                        sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp