linux-kernel - Re: [BUG] Ethernet broken on rockpro64 by commit 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime

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-next>] [day] [month] [year] [list]

Message-ID: <87zgrk19yb.fsf@stealth>
Date:   Fri, 08 Oct 2021 12:17:48 +0900
From:   Punit Agrawal <punitagrawal@...il.com>
To:     Alexandru Elisei <alexandru.elisei@....com>
Cc:     davem@...emloft.net, michael.riesch@...fvision.net,
        peppe.cavallaro@...com, alexandre.torgue@...s.st.com,
        joabreu@...opsys.com, kuba@...nel.org, mcoquelin.stm32@...il.com,
        p.zabel@...gutronix.de, lgirdwood@...il.com,
        Mark Brown <broonie@...nel.org>, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        arm-mail-list <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] Ethernet broken on rockpro64 by commit 2d26f6e39afb
 ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings")

Alexandru Elisei <alexandru.elisei@....com> writes:

> (Sorry I'm sending this to the wrong person, this is what I got
> scripts/get_maintainer.pl for the file touched by the commit)
>
> After commit 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced
> pm_runtime_enable warnings"), the network card on my rockpro64-v2 was left unable
> to get a DHCP lease from the network. The offending commit was found by bisecting
> the kernel; I tried reverting the commit from current master (commit 0513e464f900
> ("Merge tag 'perf-tools-fixes-for-v5.15-2021-09-27' of
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux")) and the network card
> was working as expected.
>
> It goes without saying that I can help with testing the fix and
> further diagnosing.

A fix was recently merged for this (see aec3f415f724 ("net: stmmac:
dwmac-rk: Fix ethernet on rk3399 based devices") and should show up in
the next rc. Please shout out if that doesn't fix the broken ethernet
for you.

Thanks,
Punit