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-rw-r--r--debian/patches-rt/0070-serial-timbuart-Use-port-lock-wrappers.patch71
1 files changed, 0 insertions, 71 deletions
diff --git a/debian/patches-rt/0070-serial-timbuart-Use-port-lock-wrappers.patch b/debian/patches-rt/0070-serial-timbuart-Use-port-lock-wrappers.patch
deleted file mode 100644
index 2d5a3d95e3..0000000000
--- a/debian/patches-rt/0070-serial-timbuart-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:27 +0206
-Subject: [PATCH 070/134] serial: timbuart: 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/20230914183831.587273-71-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/timbuart.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/tty/serial/timbuart.c
-+++ b/drivers/tty/serial/timbuart.c
-@@ -174,7 +174,7 @@ static void timbuart_tasklet(struct task
- struct timbuart_port *uart = from_tasklet(uart, t, tasklet);
- u32 isr, ier = 0;
-
-- spin_lock(&uart->port.lock);
-+ uart_port_lock(&uart->port);
-
- isr = ioread32(uart->port.membase + TIMBUART_ISR);
- dev_dbg(uart->port.dev, "%s ISR: %x\n", __func__, isr);
-@@ -189,7 +189,7 @@ static void timbuart_tasklet(struct task
-
- iowrite32(ier, uart->port.membase + TIMBUART_IER);
-
-- spin_unlock(&uart->port.lock);
-+ uart_port_unlock(&uart->port);
- dev_dbg(uart->port.dev, "%s leaving\n", __func__);
- }
-
-@@ -295,10 +295,10 @@ static void timbuart_set_termios(struct
- tty_termios_copy_hw(termios, old);
- tty_termios_encode_baud_rate(termios, baud, baud);
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- iowrite8((u8)bindex, port->membase + TIMBUART_BAUDRATE);
- uart_update_timeout(port, termios->c_cflag, baud);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static const char *timbuart_type(struct uart_port *port)