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-rw-r--r--debian/patches-rt/0007-serial-8250_dma-Use-port-lock-wrappers.patch80
1 files changed, 0 insertions, 80 deletions
diff --git a/debian/patches-rt/0007-serial-8250_dma-Use-port-lock-wrappers.patch b/debian/patches-rt/0007-serial-8250_dma-Use-port-lock-wrappers.patch
deleted file mode 100644
index bc8686e892..0000000000
--- a/debian/patches-rt/0007-serial-8250_dma-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:24 +0206
-Subject: [PATCH 007/134] serial: 8250_dma: Use port lock wrappers
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-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: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
-Link: https://lore.kernel.org/r/20230914183831.587273-8-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_dma.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/tty/serial/8250/8250_dma.c
-+++ b/drivers/tty/serial/8250/8250_dma.c
-@@ -22,7 +22,7 @@ static void __dma_tx_complete(void *para
- dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr,
- UART_XMIT_SIZE, DMA_TO_DEVICE);
-
-- spin_lock_irqsave(&p->port.lock, flags);
-+ uart_port_lock_irqsave(&p->port, &flags);
-
- dma->tx_running = 0;
-
-@@ -35,7 +35,7 @@ static void __dma_tx_complete(void *para
- if (ret || !dma->tx_running)
- serial8250_set_THRI(p);
-
-- spin_unlock_irqrestore(&p->port.lock, flags);
-+ uart_port_unlock_irqrestore(&p->port, flags);
- }
-
- static void __dma_rx_complete(struct uart_8250_port *p)
-@@ -70,7 +70,7 @@ static void dma_rx_complete(void *param)
- struct uart_8250_dma *dma = p->dma;
- unsigned long flags;
-
-- spin_lock_irqsave(&p->port.lock, flags);
-+ uart_port_lock_irqsave(&p->port, &flags);
- if (dma->rx_running)
- __dma_rx_complete(p);
-
-@@ -80,7 +80,7 @@ static void dma_rx_complete(void *param)
- */
- if (!dma->rx_running && (serial_lsr_in(p) & UART_LSR_DR))
- p->dma->rx_dma(p);
-- spin_unlock_irqrestore(&p->port.lock, flags);
-+ uart_port_unlock_irqrestore(&p->port, flags);
- }
-
- int serial8250_tx_dma(struct uart_8250_port *p)