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SubjectRe: [PATCH v2] scripts/nsdeps: make sure to pass all module source files to spatch
On Tue, Nov 5, 2019 at 9:11 PM Jessica Yu <jeyu@kernel.org> wrote:
>
> 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.
>
> Signed-off-by: Jessica Yu <jeyu@kernel.org>
> ---

Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>






>
> v2: put quotes around mod_source_files variable assignment as suggested by Masahiro.
>
> scripts/nsdeps | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/scripts/nsdeps b/scripts/nsdeps
> index dda6fbac016e..04cea0921673 100644
> --- 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
> --
> 2.16.4
>


--
Best Regards
Masahiro Yamada

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