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-rw-r--r--debian/patches-rt/0071-serial-uartlite-Use-port-lock-wrappers.patch105
1 files changed, 0 insertions, 105 deletions
diff --git a/debian/patches-rt/0071-serial-uartlite-Use-port-lock-wrappers.patch b/debian/patches-rt/0071-serial-uartlite-Use-port-lock-wrappers.patch
deleted file mode 100644
index 13c64d7eed..0000000000
--- a/debian/patches-rt/0071-serial-uartlite-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,105 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:28 +0206
-Subject: [PATCH 071/134] serial: uartlite: 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/20230914183831.587273-72-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/uartlite.c | 18 +++++++++---------
- 1 file changed, 9 insertions(+), 9 deletions(-)
-
---- a/drivers/tty/serial/uartlite.c
-+++ b/drivers/tty/serial/uartlite.c
-@@ -216,11 +216,11 @@ static irqreturn_t ulite_isr(int irq, vo
- unsigned long flags;
-
- do {
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- stat = uart_in32(ULITE_STATUS, port);
- busy = ulite_receive(port, stat);
- busy |= ulite_transmit(port, stat);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- n++;
- } while (busy);
-
-@@ -238,9 +238,9 @@ static unsigned int ulite_tx_empty(struc
- unsigned long flags;
- unsigned int ret;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- ret = uart_in32(ULITE_STATUS, port);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0;
- }
-@@ -323,7 +323,7 @@ static void ulite_set_termios(struct uar
- termios->c_cflag |= pdata->cflags & (PARENB | PARODD | CSIZE);
- tty_termios_encode_baud_rate(termios, pdata->baud, pdata->baud);
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- port->read_status_mask = ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
- | ULITE_STATUS_TXFULL;
-@@ -346,7 +346,7 @@ static void ulite_set_termios(struct uar
- /* update timeout */
- uart_update_timeout(port, termios->c_cflag, pdata->baud);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static const char *ulite_type(struct uart_port *port)
-@@ -495,9 +495,9 @@ static void ulite_console_write(struct c
- int locked = 1;
-
- if (oops_in_progress) {
-- locked = spin_trylock_irqsave(&port->lock, flags);
-+ locked = uart_port_trylock_irqsave(port, &flags);
- } else
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- /* save and disable interrupt */
- ier = uart_in32(ULITE_STATUS, port) & ULITE_STATUS_IE;
-@@ -512,7 +512,7 @@ static void ulite_console_write(struct c
- uart_out32(ULITE_CONTROL_IE, ULITE_CONTROL, port);
-
- if (locked)
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static int ulite_console_setup(struct console *co, char *options)