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

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Date:   Mon, 22 Aug 2016 16:57:10 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     torvalds@...ux-foundation.org
Cc:     hpa@...or.com, viro@...iv.linux.org.uk, jakub@...hat.com,
        Vineet.Gupta1@...opsys.com, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, mingo@...hat.com
Subject: Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of
 fault

From: Linus Torvalds <torvalds@...ux-foundation.org>
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.