# Re: \[-next\] ERROR: "epapr\_hypercall\_start" \[drivers/tty/ehv\_bytechan.ko\] undefined!

- From: Michael Ellerman \<hidden\>
- Date: 2012-08-10 09:00:48 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2012/08/9470757
- Thread: https://ratatoskr.run/linuxppc-dev/2012/08/8898825/t.md

```text
On Fri, 2012-08-10 at 18:58 +1000, Michael Ellerman wrote:
> On Fri, 2012-08-10 at 09:43 +0200, Geert Uytterhoeven wrote:
> > Sicne a few days, powerpc allmodconfig fails with:
> > 
> > ERROR: "epapr_hypercall_start" [drivers/tty/ehv_bytechan.ko] undefined!
> > make[2]: *** [__modpost] Error 1
> > make[1]: *** [modules] Error 2
> > 
> > http://kisskb.ellerman.id.au/kisskb/buildresult/6883300/
> 
> 
> Yep, modular build is broken.
> 
> Since this commit by the looks of it:
> 
> commit 6d2d82627f4f1e96a33664ace494fa363e0495cb
> Author: Liu Yu-B13201 [ref]
> Date:   Tue Jul 3 05:48:56 2012 +0000
> 
>     PPC: Don't use hardcoded opcode for ePAPR hcall invocation
>     
>     Signed-off-by: Liu Yu [ref]

And this address bounces, nice.

cheers
```