linux-kernel - Re: [PATCHv4 2/2] mm: use stack_depot_early

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]

Date:   Thu, 19 Jan 2023 14:42:04 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     "zhaoyang.huang" <zhaoyang.huang@...soc.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Nathan Chancellor <nathan@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Zhaoyang Huang <huangzhaoyang@...il.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ke.wang@...soc.com,
        Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
Subject: Re: [PATCHv4 2/2] mm: use stack_depot_early_init for kmemleak

On Thu, 19 Jan 2023 11:32:36 +0100 Vlastimil Babka <vbabka@...e.cz> wrote:

> But to be cleaner I'd also suggest Andrew adds the hunk below. The call
> to stack_depot_init() becomes no-op after this patch so it's not a bug
> to leave it there, but it's just misleading now.
> 
> ---8<---
> diff --git a/mm/kmemleak.c b/mm/kmemleak.c
> index 91dda5c2753a..55dc8b8b0616 100644
> --- a/mm/kmemleak.c
> +++ b/mm/kmemleak.c
> @@ -2095,7 +2095,6 @@ void __init kmemleak_init(void)
>  	if (kmemleak_error)
>  		return;
>  
> -	stack_depot_init();
>  	jiffies_min_age = msecs_to_jiffies(MSECS_MIN_AGE);
>  	jiffies_scan_wait = msecs_to_jiffies(SECS_SCAN_WAIT * 1000);
>  

I added your signoff to this.

I used not to bother for such minor to-be-folded fixups, but now
Stephen sends me automated nags when his scripts detect this.