# Re: \[PATCH v2 1/6\] powerpc/perf: Define big-endian version of perf\_mem\_data\_src

- From: Peter Zijlstra \<peterz@infradead.org\>
- Date: 2017-03-13 12:51:11 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2017/03/4953331
- Thread: https://ratatoskr.run/linuxppc-dev/2017/03/4947148/t.md

```text
On Mon, Mar 13, 2017 at 04:45:51PM +0530, Madhavan Srinivasan wrote:
> >  - should you not have fixed this in the tool only? This patch
> >    effectively breaks ABI on big-endian architectures.
> 
> IIUC, we are the first BE user for this feature
> (Kindly correct me if I am wrong), so technically we
> are not breaking ABI here :) .  But let me also look  at
> the dynamic conversion part.

Huh? PPC hasn't yet implemented this? Then why are you fixing it?
```