linux-kernel - Re: [PATCH v2] drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists

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: <5d77df7f-8693-0232-dbfe-0acfc37e040f@oracle.com>
Date:   Fri, 17 Jan 2020 10:24:04 -0800
From:   santosh.shilimkar@...cle.com
To:     Amol Grover <frextrite@...il.com>, arm-soc <arm@...nel.org>
Cc:     Santosh Shilimkar <ssantosh@...nel.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Joel Fernandes <joel@...lfernandes.org>,
        Madhuparna Bhowmik <madhuparnabhowmik04@...il.com>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: Re: [PATCH v2] drivers: soc: ti: knav_qmss_queue: Pass lockdep
 expression to RCU lists

On 1/17/20 5:30 AM, Amol Grover wrote:
> inst->handles is traversed using list_for_each_entry_rcu
> outside an RCU read-side critical section but under the protection
> of knav_dev_lock.
> 
> Hence, add corresponding lockdep expression to silence false-positive
> lockdep warnings, and harden RCU lists.
> 
> Add macro for the corresponding lockdep expression.
> 
> Signed-off-by: Amol Grover <frextrite@...il.com>
> ---
> v2:
> - Remove rcu_read_lock_held() from lockdep expression since it is
>    implicitly checked for.
> 
Looks fine to me.

Hi Olof, Arnd,
Can you please pick this one and apply to your driver-soc branch ?
I already sent out pull request and hence the request.

regards,
Santosh