linux-kernel - Re: [PATCH 22/22] x86_64: use relative pointers with dynamic debug

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 for Android: free password hash cracker in your pocket

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

Date:   Wed, 3 Oct 2018 23:40:39 +0200
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Jason Baron <jbaron@...mai.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 22/22] x86_64: use relative pointers with dynamic debug

On 2018-10-02 11:50, Ingo Molnar wrote:
> 
> * Rasmus Villemoes <linux@...musvillemoes.dk> wrote:
> 
>> Similar to how x86_64 uses bug_entry-relative pointers to reduce
>> sizeof(struct bug_entry), the same thing can now be done for struct
>> _ddebug, saving 16 bytes for each of those (i.e., each pr_debug, dev_dbg
>> etc. in a CONFIG_DYNAMIC_DEBUG kernel).
> 
> Reviewed-by: Ingo Molnar <mingo@...nel.org>

Thanks! Can I assume this also applies to the latecomer 23/22, which I
think I'm gonna squash with 22/22? Then I'll resend the series with
various tags included and ask Andrew to pick it up.

Rasmus