… > +++ b/drivers/soc/fsl/qe/tsa.c … > +static int tsa_qe_serial_connect(struct tsa_serial *tsa_serial, bool connect) > +{ … > + spin_lock_irqsave(&tsa->lock, flags); > + ret = ucc_set_qe_mux_tsa(ucc_num, connect); > + spin_unlock_irqrestore(&tsa->lock, flags); … Under which circumstances would you become interested to apply a statement like “guard(spinlock_irqsave)(&tsa->lock);”? https://elixir.bootlin.com/linux/v6.11-rc1/source/include/linux/spinlock.h#L572 Regards, Markus