linux-kernel - Re: [PATCH v4 1/2] lib/vsprintf: Remove static_branch_likely() from __ptr_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YzMNXXjqFPfDXBMy@alley>
Date:   Tue, 27 Sep 2022 16:49:01 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, Theodore Ts'o <tytso@....edu>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "Jason A . Donenfeld " <Jason@...c4.com>,
        John Ogness <john.ogness@...utronix.de>,
        Mike Galbraith <efault@....de>,
        Peter Zijlstra <peterz@...radead.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v4 1/2] lib/vsprintf: Remove static_branch_likely() from
 __ptr_to_hashval().

On Tue 2022-09-27 12:49:11, Sebastian Andrzej Siewior wrote:
> Using static_branch_likely() to signal that ptr_key has been filled is a
> bit much given that it is not a fast path.
> 
> Replace static_branch_likely() with bool for condition and a memory
> barrier for ptr_key.
> 
> Suggested-by: Petr Mladek <pmladek@...e.com>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr