Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault

[David Miller]

From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 22 Aug 2016 16:48:00 -0700

> How new is it? The whole point was that we'd not have to worry and
> wait for gcc features..

It's been around for a long time.

I'd say at least gcc-3.0 and later support it.