linux-kernel - Re: (subset) [PATCH V2 0/4] Remove WARN_ON in save_processor

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: <168736259084.605458.4732376069158804322.b4-ty@arm.com>
Date:   Wed, 21 Jun 2023 16:51:43 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     will@...nel.org, paul.walmsley@...ive.com, palmer@...belt.com,
        aou@...s.berkeley.edu, chris@...kel.net, jcmvbkbc@...il.com,
        steven.price@....com, vincenzo.frascino@....com,
        leyfoon.tan@...rfivetech.com, mason.huo@...rfivetech.com,
        jeeheng.sia@...rfivetech.com, conor.dooley@...rochip.com,
        ajones@...tanamicro.com, Song Shuai <songshuaishuai@...ylab.org>
Cc:     linux@...linux.org.uk, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: (subset) [PATCH V2 0/4] Remove WARN_ON in save_processor_state

On Fri, 09 Jun 2023 15:50:45 +0800, Song Shuai wrote:
> During hibernation or restoration, freeze_secondary_cpus
> checks num_online_cpus via BUG_ON, and the subsequent
> save_processor_state also does the checking with WARN_ON.
> 
> In the case of CONFIG_PM_SLEEP_SMP=n, freeze_secondary_cpus
> is not defined, but the sole possible condition to disable
> CONFIG_PM_SLEEP_SMP is !SMP where num_online_cpus is always 1.
> We also don't have to check it in save_processor_state.
> 
> [...]

Applied to arm64 (for-next/misc), thanks!

I couldn't tell whether this series would go in as a whole but given
that the patches are independent, I picked up the arm64 one.

[2/4] arm64: hibernate: remove WARN_ON in save_processor_state
      https://git.kernel.org/arm64/c/615af0021a61

-- 
Catalin