From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH 16/17] arch: remove HAVE_COPY_THREAD_TLS
Date: Mon, 22 Jun 2020 17:44:52 -0700
Message-ID: <202006221743.1BE5670@keescook>
References: <20200622234326.906346-1-christian.brauner@ubuntu.com>
 <20200622234326.906346-17-christian.brauner@ubuntu.com>
Mime-Version: 1.0
Return-path: <linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane-mx.org@lists.ozlabs.org>
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google;
 h=date:from:to:cc:subject:message-id:references:mime-version
 :content-disposition:in-reply-to;
 bh=WOoBj34wrpkLm3cxJNNb0KejtEcGHXihiKs5tn9Bl2A=;
 b=Fyi9BekJ6P5kCaEZI4v0Q5UGFFijbkzvYxlDhZfmBSOVaRIA/BSafm9pzLuUQlIJo0
 akWxcy93XZBgnvmXLQQBdCNAgHijbBuOyOHThfXz86makirRrM3AruNfhYt0fz3mFMJt
 ULQfJMf3BQL8GiNmwlac0RpP8ipddRm3w9CIM=
Content-Disposition: inline
In-Reply-To: <20200622234326.906346-17-christian.brauner@ubuntu.com>
List-Id: <linux-alpha.vger.kernel.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane-mx.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane-mx.org@lists.ozlabs.org>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Rich Felker <dalias@libc.org>, linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>, Catalin Marinas <catalin.marinas@arm.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, linux-mips@vger.kernel.org, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, Guo Ren <guoren@kernel.org>, linux-csky@vger.kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Anton Ivanov <anton.ivanov@cambridgegreys.com>, Jonas Bonn <jonas@southpole.se>, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Brian Cain <bcain@codeaurora.org>, linux-xtensa@linux-xtensa.org, Helge Deller <deller@gmx.de>, x86@kernel.org, Russell King <linux@armlinux.org.uk>, Ley Foon Tan <ley.foon.tan@intel.com>

On Tue, Jun 23, 2020 at 01:43:25AM +0200, Christian Brauner wrote:
> All architectures support copy_thread_tls() now, so remove the legacy
> copy_thread() function and the HAVE_COPY_THREAD_TLS config option. Everyone
> uses the same process creation calling convention based on
> copy_thread_tls() and struct kernel_clone_args. This will make it easier to
> maintain the core process creation code under kernel/, simplifies the
> callpaths and makes the identical for all architectures.
> [...]
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Massive CC list. ;) linux-arch@ may be sufficient.

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook