netdev - Re: [PATCH net] net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth

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]

Message-ID: <20221108172707.732325ce@kernel.org>
Date:   Tue, 8 Nov 2022 17:27:07 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Zhengchao Shao <shaozhengchao@...wei.com>
Cc:     <netdev@...r.kernel.org>, <sebastian.hesselbarth@...il.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
        <jeffrey.t.kirsher@...el.com>, <weiyongjun1@...wei.com>,
        <yuehaibing@...wei.com>
Subject: Re: [PATCH net] net: mv643xx_eth: disable napi when init rxq or txq
 failed in mv643xx_eth_open()

On Tue, 8 Nov 2022 10:51:56 +0800 Zhengchao Shao wrote:
> When failed to init rxq or txq in mv643xx_eth_open() for opening device,
> napi isn't disabled. When open mv643xx_eth device next time, it will
> report a invalid opcode issue.

It will trigger a BUG_ON() in napi_enable()

> Fix it. Only be compiled, not be tested.

Please replace "Fix it. Only be compiled, not be tested."
with "Compile tested only."

> Fixes: 527a626601de ("skge/sky2/mv643xx/pxa168: Move the Marvell Ethernet drivers")

This is not the commit which added this code, please find out where 
the code was added.