From: Francesco Dolcini <francesco.dolcini@toradex.com>
To: "Csókás Bence" <csokas.bence@prolan.hu>
Cc: netdev@vger.kernel.org,
Richard Cochran <richardcochran@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Francesco Dolcini <francesco.dolcini@toradex.com>,
Andrew Lunn <andrew@lunn.ch>,
kernel@pengutronix.de, Marc Kleine-Budde <mkl@pengutronix.de>
Subject: Re: [PATCH v2] net: fec: Use a spinlock to guard `fep->ptp_clk_on`
Date: Fri, 2 Sep 2022 19:04:50 +0200 [thread overview]
Message-ID: <20220902170450.GA139955@francesco-nb.int.toradex.com> (raw)
In-Reply-To: <20220901140402.64804-1-csokas.bence@prolan.hu>
On Thu, Sep 01, 2022 at 04:04:03PM +0200, Csókás Bence wrote:
> Mutexes cannot be taken in a non-preemptible context,
> causing a panic in `fec_ptp_save_state()`. Replacing
> `ptp_clk_mutex` by `tmreg_lock` fixes this.
>
> Fixes: 6a4d7234ae9a ("net: fec: ptp: avoid register access when ipg clock is disabled")
> Fixes: f79959220fa5 ("fec: Restart PPS after link state change")
> Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
> Link: https://lore.kernel.org/all/20220827160922.642zlcd5foopozru@pengutronix.de/
> Signed-off-by: Csókás Bence <csokas.bence@prolan.hu>
Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Toradex Apalis iMX6
next prev parent reply other threads:[~2022-09-02 17:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 14:04 [PATCH v2] net: fec: Use a spinlock to guard `fep->ptp_clk_on` Csókás Bence
2022-09-01 15:04 ` Francesco Dolcini
2022-09-02 7:18 ` Csókás Bence
2022-09-01 16:26 ` Florian Fainelli
2022-09-02 7:35 ` Csókás Bence
2022-09-02 15:47 ` Florian Fainelli
2022-09-02 17:04 ` Francesco Dolcini [this message]
2022-09-03 4:30 ` patchwork-bot+netdevbpf
2022-09-05 7:38 ` Marc Kleine-Budde
2022-09-07 14:39 ` Marc Kleine-Budde
2022-09-09 13:56 ` Francesco Dolcini
2022-09-10 17:08 ` Csókás Bence
2022-09-14 14:53 ` [REGRESSION] " Guenter Roeck
2022-09-18 18:59 ` [REGRESSION] Re: [PATCH v2] net: fec: Use a spinlock to guard `fep->ptp_clk_on` #forregzbot Thorsten Leemhuis
2022-09-22 10:58 ` Thorsten Leemhuis
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