Currently "amd-staging-drm-next" fails to build for me, with the following
error:

```
../lib/str_error_r.c: In function ‘str_error_r’:
../lib/str_error_r.c:25:3: error: passing argument 1 to restrict-qualified
parameter aliases with argument 5 [-Werror=restrict]
   snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum,
buf, buflen, err);
   ^~~~~~~~
```

>From what I was able to research, it seems to be missing a patch that was
applied in March (https://patchwork.kernel.org/patch/10291671/). But maybe I'm
doing something wrong here, since I'm not very experienced.

Or did you mean for me to try building linux-4.16, and patch it with commit
"a0f282dcdb1775cbcc0a151570fc01c0aae5ca0f" from the "amd-staging-drm-next"
tree?