From: Greg KH <greg@kroah•com>
To: Meng Li <Meng.Li@windriver•com>
Cc: stable@vger•kernel.org, davem@davemloft•net, kuba@kernel•org,
mcoquelin.stm32@gmail•com, linux@armlinux•org.uk, andrew@lunn•ch,
qiangqing.zhang@nxp•com, linux-kernel@vger•kernel.org,
netdev@vger•kernel.org
Subject: Re: [PATCH 0/6] backport patches to improve clocks management for stmmac driver
Date: Fri, 19 Nov 2021 14:29:25 +0100 [thread overview]
Message-ID: <YZemteFqu3/5ryNL@kroah.com> (raw)
In-Reply-To: <20211119025359.30815-1-Meng.Li@windriver.com>
On Fri, Nov 19, 2021 at 10:53:53AM +0800, Meng Li wrote:
> From: Meng Li <meng.li@windriver•com>
>
> In stable kernel v5.10, when run below command to remove ethernet driver on
> stratix10 platform, there will be warning trace as below:
>
> $ cd /sys/class/net/eth0/device/driver/
> $ echo ff800000.ethernet > unbind
>
> WARNING: CPU: 3 PID: 386 at drivers/clk/clk.c:810 clk_core_unprepare+0x114/0x274
> Modules linked in: sch_fq_codel
> CPU: 3 PID: 386 Comm: sh Tainted: G W 5.10.74-yocto-standard #1
> Hardware name: SoCFPGA Stratix 10 SoCDK (DT)
> pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
> pc : clk_core_unprepare+0x114/0x274
> lr : clk_core_unprepare+0x114/0x274
> sp : ffff800011bdbb10
> clk_core_unprepare+0x114/0x274
> clk_unprepare+0x38/0x50
> stmmac_remove_config_dt+0x40/0x80
> stmmac_pltfr_remove+0x64/0x80
> platform_drv_remove+0x38/0x60
> ... ..
> el0_sync_handler+0x1a4/0x1b0
> el0_sync+0x180/0x1c0
> This issue is introduced by introducing upstream commit 8f269102baf7
> ("net: stmmac: disable clocks in stmmac_remove_config_dt()")
>
> But in latest mainline kernel, there is no this issue. Because commit
> 5ec55823438e("net: stmmac: add clocks management for gmac driver") and its
> folowing fixing commits improved clocks management for stmmac driver.
> Therefore, backport them to stable kernel v5.10.
>
All now queued up, thanks.
greg k-h
prev parent reply other threads:[~2021-11-19 13:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 2:53 [PATCH 0/6] backport patches to improve clocks management for stmmac driver Meng Li
2021-11-19 2:53 ` [PATCH 1/6] net: stmmac: add clocks management for gmac driver Meng Li
2021-11-19 2:53 ` [PATCH 2/6] net: stmmac: platform: fix build error with !CONFIG_PM_SLEEP Meng Li
2021-11-19 2:53 ` [PATCH 3/6] net: stmmac: fix missing unlock on error in stmmac_suspend() Meng Li
2021-11-19 2:53 ` [PATCH 4/6] net: stmmac: fix system hang if change mac address after interface ifdown Meng Li
2021-11-19 2:53 ` [PATCH 5/6] net: stmmac: fix issue where clk is being unprepared twice Meng Li
2021-11-19 2:53 ` [PATCH 6/6] net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings Meng Li
2021-11-19 13:29 ` Greg KH [this message]
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