Re: [PATCH 5.15.y] kbuild: Allow kernel installation packaging to override pkg-config

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, Jan 17, 2023 at 12:09:29PM -0800, Stephen Boyd wrote:
> Quoting Greg KH (2023-01-14 05:49:09)
> > On Thu, Jan 12, 2023 at 04:21:49PM -0800, Stephen Boyd wrote:
> > > From: Chun-Tse Shao <ctshao@google.com>
> > >
> > > commit d5ea4fece4508bf8e72b659cd22fa4840d8d61e5 upstream.
> > >
> > > Add HOSTPKG_CONFIG to allow tooling that builds the kernel to override
> > > what pkg-config and parameters are used.
> > >
> > > Signed-off-by: Chun-Tse Shao <ctshao@google.com>
> > > Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
> > > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> > > [swboyd@chromium.org: Drop certs/Makefile hunk that doesn't
> > > apply because pkg-config isn't used there, add dtc/Makefile hunk to
> > > fix dtb builds]
> > > Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> > > ---
> > >
> > > I need this to properly compile 5.15.y stable kernels in the chromeos
> > > build system.
> >
> > Is this a new issue?  A regression?  This feels odd to add a new build
> > feature to an old kernel when nothing changed to require it other than
> > an external tool suddenly requiring something new?
> >
> 
> The chromeos build system checks for pkg-config being called directly
> and fails the build if the proper wrapper isn't used. We set
> HOSTPKG_CONFIG in the environment when building the kernel so that it
> doesn't fail.
> 
> It's not exactly a new issue, but a self-inflicted one that makes
> building the stable kernel annoying. I figured it was similar to fixing
> problems with compiling stable kernels with newer toolchains, but if it
> feels odd then I'll just have to remember to pick this patch whenever
> bisecting stable trees. No worries.

Now queued up, thanks.

greg k-h