linux-kernel - Re: [PATCH 4/4] kernel: doc: remove outdated comment cred.c

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Message-ID: <202003111154.AEA9260278@keescook>
Date:   Wed, 11 Mar 2020 11:54:04 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Bernd Edlinger <bernd.edlinger@...mail.de>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Jann Horn <jannh@...gle.com>, Jonathan Corbet <corbet@....net>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Oleg Nesterov <oleg@...hat.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Andrei Vagin <avagin@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Yuyang Du <duyuyang@...il.com>,
        David Hildenbrand <david@...hat.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Anshuman Khandual <anshuman.khandual@....com>,
        David Howells <dhowells@...hat.com>,
        James Morris <jamorris@...ux.microsoft.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Christian Kellner <christian@...lner.me>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Aleksa Sarai <cyphar@...har.com>,
        "Dmitry V. Levin" <ldv@...linux.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>
Subject: Re: [PATCH 4/4] kernel: doc: remove outdated comment cred.c

On Tue, Mar 10, 2020 at 02:44:18PM +0100, Bernd Edlinger wrote:
> This removes an outdated comment in prepare_kernel_cred.
> 
> There is no "cred_replace_mutex" any more, so the comment must
> go away.
> 
> Signed-off-by: Bernd Edlinger <bernd.edlinger@...mail.de>

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

-Kees

> ---
>  kernel/cred.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/kernel/cred.c b/kernel/cred.c
> index 809a985..71a7926 100644
> --- a/kernel/cred.c
> +++ b/kernel/cred.c
> @@ -675,8 +675,6 @@ void __init cred_init(void)
>   * The caller may change these controls afterwards if desired.
>   *
>   * Returns the new credentials or NULL if out of memory.
> - *
> - * Does not take, and does not return holding current->cred_replace_mutex.
>   */
>  struct cred *prepare_kernel_cred(struct task_struct *daemon)
>  {
> -- 
> 1.9.1

-- 
Kees Cook