Re: [PATCH] net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings

From: Michael Riesch
Date: Wed Aug 25 2021 - 04:08:01 EST

Hi Jakub,

On 8/23/21 6:44 PM, Jakub Kicinski wrote:
> On Mon, 23 Aug 2021 16:37:54 +0200 Michael Riesch wrote:
>> In the commit to be reverted, support for power management was
>> introduced to the Rockchip glue code. Later, power management support
>> was introduced to the stmmac core code, resulting in multiple
>> invocations of pm_runtime_{enable,disable,get_sync,put_sync}.
> Can we get a Fixes tag? I.e. reference to the earliest commit where
> the warning can be triggered?

Of course :-)

Fixes: 5ec55823438e850c91c6b92aec93fb04ebde29e2 ("net: stmmac: add
clocks management for gmac driver")

This commit introduces power management support to the stmmac core
(stmmac_{dvr_probe, dvr_remove, suspend, resume}).

Best regards,

>> The multiple invocations happen in rk_gmac_powerup and
>> stmmac_{dvr_probe, resume} as well as in rk_gmac_powerdown and
>> stmmac_{dvr_remove, suspend}, respectively, which are always called
>> in conjunction.