Re: [PATCH 5.19 145/365] kbuild: dummy-tools: avoid tmpdir leak in dummy gcc

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On Mon, Aug 29, 2022 at 10:05:13AM +0200, Greg Kroah-Hartman wrote:
> On Mon, Aug 29, 2022 at 09:12:39AM +0200, Jiri Slaby wrote:
> > On 27. 08. 22, 10:34, Ondrej Mosnacek wrote:
> > > On Sat, Aug 27, 2022 at 9:51 AM Jiri Slaby <jirislaby@xxxxxxxxxx> wrote:
> > > > On 23. 08. 22, 10:00, Greg Kroah-Hartman wrote:
> > > > > From: Ondrej Mosnacek <omosnace@xxxxxxxxxx>
> > > > > 
> > > > > commit aac289653fa5adf9e9985e4912c1d24a3e8cbab2 upstream.
> > > > > 
> > > > > When passed -print-file-name=plugin, the dummy gcc script creates a
> > > > > temporary directory that is never cleaned up. To avoid cluttering
> > > > > $TMPDIR, instead use a static directory included in the source tree.
> > > > 
> > > > This breaks our (SUSE) use of dummy tools (GCC_PLUGINS became =n). I
> > > > will investigate whether this is stable-only and the root cause later.
> > > 
> > > It looks like both the Greg's generated patch and the final stable
> > > commit (d7e676b7dc6a) are missing the addition of the empty
> > > plugin-version.h file. It appears in the patch's diffstat, but not in
> > > the actual diff. The mainline commit does include the empty file
> > > correctly, so it's likely a bug in the stable cherry pick automation.
> > 
> > Right, this fixed the issue for me:
> > --- a/patches.kernel.org/5.19.4-144-kbuild-dummy-tools-avoid-tmpdir-leak-in-dummy-.patch
> > +++ b/patches.kernel.org/5.19.4-144-kbuild-dummy-tools-avoid-tmpdir-leak-in-dummy-.patch
> > @@ -20,6 +20,8 @@ Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
> >   scripts/dummy-tools/gcc | 8 ++------
> >   1 file changed, 2 insertions(+), 6 deletions(-)
> > 
> > +diff --git a/scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h
> > b/scripts/dummy-tools/dummy-plugin-dir/include/plugin-version.h
> > +new file mode 100644
> >  diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
> >  index b2483149bbe5..7db825843435 100755
> >  --- a/scripts/dummy-tools/gcc
> 
> Ick, looks like a bad interaction between git and quilt, and then back
> to git.  I'll manually fix this up and push out a new stable release
> with it.

Odd, 5.15.y worked just fine, but 5.10.y and 5.19.y did not.

I've done a new 5.10 and 5.19 release with this fixed up.  If there are
still any issues here, please let me know.

thanks,

greg k-h



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