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-rw-r--r--debian/patches-rt/0058-serial-mctrl_gpio-Use-port-lock-wrappers.patch58
1 files changed, 0 insertions, 58 deletions
diff --git a/debian/patches-rt/0058-serial-mctrl_gpio-Use-port-lock-wrappers.patch b/debian/patches-rt/0058-serial-mctrl_gpio-Use-port-lock-wrappers.patch
deleted file mode 100644
index 46719cb077..0000000000
--- a/debian/patches-rt/0058-serial-mctrl_gpio-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:15 +0206
-Subject: [PATCH 058/134] serial: mctrl_gpio: Use port lock wrappers
-Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz
-
-When a serial port is used for kernel console output, then all
-modifications to the UART registers which are done from other contexts,
-e.g. getty, termios, are interference points for the kernel console.
-
-So far this has been ignored and the printk output is based on the
-principle of hope. The rework of the console infrastructure which aims to
-support threaded and atomic consoles, requires to mark sections which
-modify the UART registers as unsafe. This allows the atomic write function
-to make informed decisions and eventually to restore operational state. It
-also allows to prevent the regular UART code from modifying UART registers
-while printk output is in progress.
-
-All modifications of UART registers are guarded by the UART port lock,
-which provides an obvious synchronization point with the console
-infrastructure.
-
-To avoid adding this functionality to all UART drivers, wrap the
-spin_[un]lock*() invocations for uart_port::lock into helper functions
-which just contain the spin_[un]lock*() invocations for now. In a
-subsequent step these helpers will gain the console synchronization
-mechanisms.
-
-Converted with coccinelle. No functional change.
-
-Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
-Link: https://lore.kernel.org/r/20230914183831.587273-59-john.ogness@linutronix.de
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
----
- drivers/tty/serial/serial_mctrl_gpio.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
---- a/drivers/tty/serial/serial_mctrl_gpio.c
-+++ b/drivers/tty/serial/serial_mctrl_gpio.c
-@@ -184,7 +184,7 @@ static irqreturn_t mctrl_gpio_irq_handle
-
- mctrl_gpio_get(gpios, &mctrl);
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- mctrl_diff = mctrl ^ gpios->mctrl_prev;
- gpios->mctrl_prev = mctrl;
-@@ -205,7 +205,7 @@ static irqreturn_t mctrl_gpio_irq_handle
- wake_up_interruptible(&port->state->port.delta_msr_wait);
- }
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- return IRQ_HANDLED;
- }