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

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Date:   Thu, 7 Oct 2021 10:30:25 +0100
From:   Alexandru Elisei <alexandru.elisei@....com>
To:     Jakub Kicinski <kuba@...nel.org>, broonie@...nel.org
Cc:     davem@...emloft.net, michael.riesch@...fvision.net,
        peppe.cavallaro@...com, alexandre.torgue@...s.st.com,
        joabreu@...opsys.com, mcoquelin.stm32@...il.com,
        p.zabel@...gutronix.de, lgirdwood@...il.com,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [BUG RESEND] net: stmmac: dwmac-rk: Ethernet broken on rockpro64
 by commit 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced
 pm_runtime_enable warnings")

On Wed, Oct 06, 2021 at 05:33:32PM -0700, Jakub Kicinski wrote:
> On Wed, 6 Oct 2021 16:58:11 +0100 Alexandru Elisei wrote:
> > Resending this because my previous email client inserted HTML into the email,
> > which was then rejected by the linux-kernel@...r.kernel.org spam filter.
> > 
> > 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 v5.15-rc4 and the
> > network card started working as expected.
> 
> We have this queued up in netdev/net:
> 
> aec3f415f724 ("net: stmmac: dwmac-rk: Fix ethernet on rk3399 based devices")
> 
> It should hit stable soon.

Hi Mark, Jakub,

Thank you both for your replies, will keep an eye out for when that patch hits
mainline.

Thanks,
Alex