linux-kernel - Re: [PATCH v2 2/4] selftests/seccomp: Allow syscall nr and ret value to be set separately

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Message-ID: <20200921075031.j4gruygeugkp2zwd@wittgenstein>
Date:   Mon, 21 Sep 2020 09:50:31 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org,
        Thadeu Lima de Souza Cascardo <cascardo@...onical.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Christian Brauner <christian@...uner.io>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        linux-kselftest@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-xtensa@...ux-xtensa.org,
        linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 2/4] selftests/seccomp: Allow syscall nr and ret value
 to be set separately

On Sat, Sep 19, 2020 at 01:06:35AM -0700, Kees Cook wrote:
> In preparation for setting syscall nr and ret values separately, refactor
> the helpers to take a pointer to a value, so that a NULL can indicate
> "do not change this respective value". This is done to keep the regset
> read/write happening once and in one code path.
> 
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---

Looks good!
Acked-by: Christian Brauner <christian.brauner@...ntu.com>