1 files changed, 0 insertions, 77 deletions
diff --git a/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch b/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch
deleted file mode 100644
index a66818204..000000000
--- a/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,77 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:28 +0206
-Subject: [PATCH 011/134] serial: 8250_mtk: 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>
-Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
-Link: https://lore.kernel.org/r/20230914183831.587273-12-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/8250/8250_mtk.c |    8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/tty/serial/8250/8250_mtk.c
-+++ b/drivers/tty/serial/8250/8250_mtk.c
-@@ -102,7 +102,7 @@ static void mtk8250_dma_rx_complete(void
- 	if (data->rx_status == DMA_RX_SHUTDOWN)
- 		return;
- 
--	spin_lock_irqsave(&up->port.lock, flags);
-+	uart_port_lock_irqsave(&up->port, &flags);
- 
- 	dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state);
- 	total = dma->rx_size - state.residue;
-@@ -128,7 +128,7 @@ static void mtk8250_dma_rx_complete(void
- 
- 	mtk8250_rx_dma(up);
- 
--	spin_unlock_irqrestore(&up->port.lock, flags);
-+	uart_port_unlock_irqrestore(&up->port, flags);
- }
- 
- static void mtk8250_rx_dma(struct uart_8250_port *up)
-@@ -368,7 +368,7 @@ mtk8250_set_termios(struct uart_port *po
- 	 * Ok, we're now changing the port state.  Do it with
- 	 * interrupts disabled.
- 	 */
--	spin_lock_irqsave(&port->lock, flags);
-+	uart_port_lock_irqsave(port, &flags);
- 
- 	/*
- 	 * Update the per-port timeout.
-@@ -416,7 +416,7 @@ mtk8250_set_termios(struct uart_port *po
- 	if (uart_console(port))
- 		up->port.cons->cflag = termios->c_cflag;
- 
--	spin_unlock_irqrestore(&port->lock, flags);
-+	uart_port_unlock_irqrestore(port, flags);
- 	/* Don't rewrite B0 */
- 	if (tty_termios_baud_rate(termios))
- 		tty_termios_encode_baud_rate(termios, baud, baud);