On 13.09.2022 16:04:35, Greg Kroah-Hartman wrote: > From: Csókás Bence <csokas.bence@xxxxxxxxx> > > [ 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@xxxxxxxxxxxxxx> > Link: https://lore.kernel.org/all/20220827160922.642zlcd5foopozru@xxxxxxxxxxxxxx/ > Signed-off-by: Csókás Bence <csokas.bence@xxxxxxxxx> > Tested-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx> # Toradex Apalis iMX6 > Link: https://lore.kernel.org/r/20220901140402.64804-1-csokas.bence@xxxxxxxxx > Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> If possible please drop this patch, a revert for this is pending. For details see: https://lore.kernel.org/all/20220913141917.ukoid65sqao5f4lg@xxxxxxxxxxxxxx/ regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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