From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <stable-owner@vger.kernel.org>
Received: from mail.kernel.org ([198.145.29.99]:41496 "EHLO mail.kernel.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1728761AbeKLCRm (ORCPT <rfc822;stable@vger.kernel.org>);
        Sun, 11 Nov 2018 21:17:42 -0500
Date: Sun, 11 Nov 2018 08:28:43 -0800
From: Greg KH <gregkh@linuxfoundation.org>
To: ndesaulniers@google.com
Cc: natechancellor@gmail.com, mka@chromium.org, stable@vger.kernel.org,
        trong@android.com, Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH] arm64: lse: remove -fcall-used-x0 flag
Message-ID: <20181111162843.GA8564@kroah.com>
References: <20181029171026.236752-1-ndesaulniers@google.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20181029171026.236752-1-ndesaulniers@google.com>
Sender: stable-owner@vger.kernel.org
List-ID: <stable.vger.kernel.org>

On Mon, Oct 29, 2018 at 10:10:26AM -0700, ndesaulniers@google.com wrote:
> From: Tri Vo <trong@android.com>
> 
> commit 2a6c7c367de82951c98a290a21156770f6f82c84 upstream
> 
> x0 is not callee-saved in the PCS. So there is no need to specify
> -fcall-used-x0.
> 
> Clang doesn't currently support -fcall-used flags. This patch will help
> building the kernel with clang.
> 
> Tested-by: Nick Desaulniers <ndesaulniers@google.com>
> Acked-by: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Tri Vo <trong@android.com>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
> ---
> Sending to stable for inclusion in 4.14. Needed for
> CONFIG_ARM64_LSE_ATOMICS.

Now queued up, and also added to 4.18.y and 4.19.y and 4.9.y

thanks,

greg k-h