# Re: \[PATCH\] cxl: Fix error handling

- From: Jim Davis \<hidden\>
- Date: 2016-11-01 23:36:38 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2016/11/4866281
- Thread: https://ratatoskr.run/kernel-janitors/2016/10/4864940/t.md

```text
On Sun, Oct 30, 2016 at 10:37 PM, Michael Ellerman [ref] wrote:
> Christophe JAILLET [ref] writes:
>
>> 'cxl_dev_context_init()' returns an error pointer in case of error, not
>> NULL. So test it with IS_ERR.
>>
>> Signed-off-by: Christophe JAILLET <redacted>
>> ---
>> un-compiled because I don't have the required  cross build environment.
>
> Do you run Ubuntu or Fedora? If so it's just a dnf/apt-get away:
>
> $ sudo dnf install gcc-c++-powerpc64-linux-gnu binutils-powerpc64-linux-gnu gcc-powerpc64-linux-gnu
> or
> $ sudo apt-get install gcc-powerpc64le-linux-gnu gcc-powerpc-linux-gnu libc-dev-powerpc-cross libc-dev-ppc64el-cross
>
> More here:
>
> https://github.com/linuxppc/linux/wiki/Building-powerpc-kernels

Cool; the little-endian build worked fine, but

jim@krebstar:~/linux-rc$ make ARCH=powerpc
CROSS_COMPILE=powerpc64-linux-gnu- vmlinux
make: powerpc64-linux-gnu-gcc: Command not found
make: powerpc64-linux-gnu-gcc: Command not found
scripts/kconfig/conf  --silentoldconfig Kconfig
make: powerpc64-linux-gnu-gcc: Command not found

This is on Ubuntu 16.04; there's a /usr/bin/powerpc64le-linux-gnu-gcc
from installing gcc-powerpc64le-linux-gnu, and a
/usr/bin/powerpc-linux-gnu-gcc from installing gcc-powerpc-linux-gnu,
but no /usr/bin/powerpc64-linux-gnu-gcc.

-- 
Jim
```