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-rw-r--r--debian/patches-rt/0045-serial-pch-Use-port-lock-wrappers.patch80
1 files changed, 0 insertions, 80 deletions
diff --git a/debian/patches-rt/0045-serial-pch-Use-port-lock-wrappers.patch b/debian/patches-rt/0045-serial-pch-Use-port-lock-wrappers.patch
deleted file mode 100644
index 6c4781cd09..0000000000
--- a/debian/patches-rt/0045-serial-pch-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:02 +0206
-Subject: [PATCH 045/134] serial: pch: 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/20230914183831.587273-46-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/pch_uart.c | 10 +++++-----
- 1 file changed, 5 insertions(+), 5 deletions(-)
-
---- a/drivers/tty/serial/pch_uart.c
-+++ b/drivers/tty/serial/pch_uart.c
-@@ -1347,7 +1347,7 @@ static void pch_uart_set_termios(struct
- baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16);
-
- spin_lock_irqsave(&priv->lock, flags);
-- spin_lock(&port->lock);
-+ uart_port_lock(port);
-
- uart_update_timeout(port, termios->c_cflag, baud);
- rtn = pch_uart_hal_set_line(priv, baud, parity, bits, stb);
-@@ -1360,7 +1360,7 @@ static void pch_uart_set_termios(struct
- tty_termios_encode_baud_rate(termios, baud, baud);
-
- out:
-- spin_unlock(&port->lock);
-+ uart_port_unlock(port);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
-@@ -1581,10 +1581,10 @@ pch_console_write(struct console *co, co
- port_locked = 0;
- } else if (oops_in_progress) {
- priv_locked = spin_trylock(&priv->lock);
-- port_locked = spin_trylock(&priv->port.lock);
-+ port_locked = uart_port_trylock(&priv->port);
- } else {
- spin_lock(&priv->lock);
-- spin_lock(&priv->port.lock);
-+ uart_port_lock(&priv->port);
- }
-
- /*
-@@ -1604,7 +1604,7 @@ pch_console_write(struct console *co, co
- iowrite8(ier, priv->membase + UART_IER);
-
- if (port_locked)
-- spin_unlock(&priv->port.lock);
-+ uart_port_unlock(&priv->port);
- if (priv_locked)
- spin_unlock(&priv->lock);
- local_irq_restore(flags);