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-rw-r--r--debian/patches-rt/0026-serial-linflexuart-Use-port-lock-wrappers.patch143
1 files changed, 0 insertions, 143 deletions
diff --git a/debian/patches-rt/0026-serial-linflexuart-Use-port-lock-wrappers.patch b/debian/patches-rt/0026-serial-linflexuart-Use-port-lock-wrappers.patch
deleted file mode 100644
index e2a3628ae5..0000000000
--- a/debian/patches-rt/0026-serial-linflexuart-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,143 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:43 +0206
-Subject: [PATCH 026/134] serial: linflexuart: 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/20230914183831.587273-27-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/fsl_linflexuart.c | 26 +++++++++++++-------------
- 1 file changed, 13 insertions(+), 13 deletions(-)
-
---- a/drivers/tty/serial/fsl_linflexuart.c
-+++ b/drivers/tty/serial/fsl_linflexuart.c
-@@ -203,7 +203,7 @@ static irqreturn_t linflex_txint(int irq
- struct circ_buf *xmit = &sport->state->xmit;
- unsigned long flags;
-
-- spin_lock_irqsave(&sport->lock, flags);
-+ uart_port_lock_irqsave(sport, &flags);
-
- if (sport->x_char) {
- linflex_put_char(sport, sport->x_char);
-@@ -217,7 +217,7 @@ static irqreturn_t linflex_txint(int irq
-
- linflex_transmit_buffer(sport);
- out:
-- spin_unlock_irqrestore(&sport->lock, flags);
-+ uart_port_unlock_irqrestore(sport, flags);
- return IRQ_HANDLED;
- }
-
-@@ -230,7 +230,7 @@ static irqreturn_t linflex_rxint(int irq
- unsigned char rx;
- bool brk;
-
-- spin_lock_irqsave(&sport->lock, flags);
-+ uart_port_lock_irqsave(sport, &flags);
-
- status = readl(sport->membase + UARTSR);
- while (status & LINFLEXD_UARTSR_RMB) {
-@@ -266,7 +266,7 @@ static irqreturn_t linflex_rxint(int irq
- }
- }
-
-- spin_unlock_irqrestore(&sport->lock, flags);
-+ uart_port_unlock_irqrestore(sport, flags);
-
- tty_flip_buffer_push(port);
-
-@@ -369,11 +369,11 @@ static int linflex_startup(struct uart_p
- int ret = 0;
- unsigned long flags;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- linflex_setup_watermark(port);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- ret = devm_request_irq(port->dev, port->irq, linflex_int, 0,
- DRIVER_NAME, port);
-@@ -386,14 +386,14 @@ static void linflex_shutdown(struct uart
- unsigned long ier;
- unsigned long flags;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- /* disable interrupts */
- ier = readl(port->membase + LINIER);
- ier &= ~(LINFLEXD_LINIER_DRIE | LINFLEXD_LINIER_DTIE);
- writel(ier, port->membase + LINIER);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- devm_free_irq(port->dev, port->irq, port);
- }
-@@ -474,7 +474,7 @@ linflex_set_termios(struct uart_port *po
- cr &= ~LINFLEXD_UARTCR_PCE;
- }
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- port->read_status_mask = 0;
-
-@@ -507,7 +507,7 @@ linflex_set_termios(struct uart_port *po
-
- writel(cr1, port->membase + LINCR1);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static const char *linflex_type(struct uart_port *port)
-@@ -646,14 +646,14 @@ linflex_console_write(struct console *co
- if (sport->sysrq)
- locked = 0;
- else if (oops_in_progress)
-- locked = spin_trylock_irqsave(&sport->lock, flags);
-+ locked = uart_port_trylock_irqsave(sport, &flags);
- else
-- spin_lock_irqsave(&sport->lock, flags);
-+ uart_port_lock_irqsave(sport, &flags);
-
- linflex_string_write(sport, s, count);
-
- if (locked)
-- spin_unlock_irqrestore(&sport->lock, flags);
-+ uart_port_unlock_irqrestore(sport, flags);
- }
-
- /*