| Date | Tue, 9 Apr 2024 15:23:10 +0200 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH printk v4 08/27] serial: core: Provide low-level functions to lock port |
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On Wed, Apr 03, 2024 at 12:17:10AM +0206, John Ogness wrote: > It will be necessary at times for the uart nbcon console > drivers to acquire the port lock directly (without the > additional nbcon functionality of the port lock wrappers). > These are special cases such as the implementation of the > device_lock()/device_unlock() callbacks or for internal > port lock wrapper synchronization. > > Provide low-level variants __uart_port_lock_irqsave() and > __uart_port_unlock_irqrestore() for this purpose. > > Signed-off-by: John Ogness <john.ogness@linutronix.de> > --- > include/linux/serial_core.h | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+)
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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