[Buildroot] ebtables and musl

[Markus Mayer]

On Sun, 14 Jun 2020 at 20:55, Baruch Siach <baruch at tkos.co.il> wrote:
>
> Hi Florian,
>
> On Mon, Jun 15 2020, Florian Fainelli wrote:
> > On 6/13/2020 8:34 PM, Markus Mayer wrote:
> >> On Sat, 13 Jun 2020 at 20:00, Baruch Siach <baruch at tkos.co.il> wrote:
> >>> On Sat, Jun 13 2020, Markus Mayer wrote:
> >>>
> >>>> On Sat, 13 Jun 2020 at 05:43, Peter Seiderer <ps.report at gmx.net> wrote:
> >>>>> On Fri, 12 Jun 2020 13:10:28 -0700, Markus Mayer <mmayer at broadcom.com> wrote:
> >>>>>>> While we are on the topic of ebtables, why is buildroot still using
> >>>>>>> v2.0.10-4 from 2014 when there is 2.0.11 from 2019 (as per
> >>>>>>> http://ftp.netfilter.org/pub/ebtables/)? Is it just a matter of
> >>>>>>> submitting a patch to update it or is there an underlying reason to
> >>>>>>> keep the old version around?
> >>>>>>
> >>>>>> Probably not, care to send an ebtables update patch?
> >>>>
> >>>> Sure. I'll send a patch.
> >>>
> >>> We have a version upgrade patch in patchwork:
> >>>
> >>>   http://patchwork.ozlabs.org/project/buildroot/patch/20200427212653.29933-1-ryanbarnett3@gmail.com/
> >>>
> >>> You might want to test and contribute your Tested-by.
> >>
> >> Will do. I'll let you know how it goes.
> >
> > Would not these two patches be relevant for the kernel headers too:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da360299b6734135a5f66d7db458dcc7801c826a
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6926e041a8920c8ec27e4e155efa760aa01551fd
> >
> > which would not require patching ebtables or musl at all?
>
> Buildroot allows the user to set the kernel version, or even provide a
> whole kernel tree. This includes kernels older than v4.15/v4.16. Because
> of that we can't rely on any given patch to apply to the kernel version
> we happen to use for the toolchain.
>
> The ebtables patch is no longer needed for version 2.0.11. The musl
> patch however is still needed for compatibility with older kernels.

Building ebtables 2.0.11 with musl 1.2.0 works for me if I use the
same toolchain (musl) patch that Buildroot is using and apply it to
our external toolchain
(https://git.buildroot.net/buildroot/tree/package/musl/0001-avoid-kernel-if_ether.h.patch).
The kernel version is 4.9.

Regards,
-Markus

> baruch
>
> --
>                                                      ~. .~   Tk Open Systems
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>    - baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -