On Wed, Jul 06, 2016 at 11:56:28AM +0200, Jason A. Donenfeld wrote:
> On Wed, Jul 6, 2016 at 11:53 AM, Jason A. Donenfeld <Jason@zx2c4.com> wrote:
> > One aspect that contributes to the size of the kernel module is that
> > it can't be stripped in the same way a userspace binary can, because
> > it has to be dynamically linked into the kernel.
> 
> *ALTHOUGH* looking at the binary in the ipk closely, it looks like a
> LOT of those symbols actually could be stripped, since they're not
> exported and aren't external...

Interesting.  I found this script in LEDE:

  https://git.lede-project.org/?p=source.git;a=blob;f=scripts/strip-kmod.sh;hb=HEAD

But it's indeed possible that it's not run for kernel modules that are
built outside of the core system.  I will take a closer look.

Can you check that, for instance, the kmod-udptunnel modules are properly
stripped?