Please add a change description. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.12-rc5#n45 … > +++ b/drivers/rtc/rtc-mt6685.c > @@ -0,0 +1,1456 @@ … > +static void power_on_mclk(struct mt6685_rtc *rtc) > +{ > + mutex_lock(&rtc->clk_lock); … > + mdelay(1); > + mutex_unlock(&rtc->clk_lock); > +} … Under which circumstances would you become interested to apply a statement like “guard(mutex)(&rtc->clk_lock);”? https://elixir.bootlin.com/linux/v6.12-rc5/source/include/linux/mutex.h#L201 Regards, Markus