On 13.09.2022 16:05:04, Greg Kroah-Hartman wrote:
From: Csókás Bence csokas.bence@prolan.hu
[ Upstream commit b353b241f1eb9b6265358ffbe2632fdcb563354f ]
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 Link: https://lore.kernel.org/r/20220901140402.64804-1-csokas.bence@prolan.hu Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org
If possible please drop this patch, a revert for this is pending. For details see:
https://lore.kernel.org/all/20220913141917.ukoid65sqao5f4lg@pengutronix.de/
regards, Marc