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-rw-r--r--debian/patches-rt/0052-serial-sa1100-Use-port-lock-wrappers.patch117
1 files changed, 0 insertions, 117 deletions
diff --git a/debian/patches-rt/0052-serial-sa1100-Use-port-lock-wrappers.patch b/debian/patches-rt/0052-serial-sa1100-Use-port-lock-wrappers.patch
deleted file mode 100644
index 2f8073a48..000000000
--- a/debian/patches-rt/0052-serial-sa1100-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,117 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:09 +0206
-Subject: [PATCH 052/134] serial: sa1100: 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/20230914183831.587273-53-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/sa1100.c | 20 ++++++++++----------
- 1 file changed, 10 insertions(+), 10 deletions(-)
-
---- a/drivers/tty/serial/sa1100.c
-+++ b/drivers/tty/serial/sa1100.c
-@@ -115,9 +115,9 @@ static void sa1100_timeout(struct timer_
- unsigned long flags;
-
- if (sport->port.state) {
-- spin_lock_irqsave(&sport->port.lock, flags);
-+ uart_port_lock_irqsave(&sport->port, &flags);
- sa1100_mctrl_check(sport);
-- spin_unlock_irqrestore(&sport->port.lock, flags);
-+ uart_port_unlock_irqrestore(&sport->port, flags);
-
- mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT);
- }
-@@ -247,7 +247,7 @@ static irqreturn_t sa1100_int(int irq, v
- struct sa1100_port *sport = dev_id;
- unsigned int status, pass_counter = 0;
-
-- spin_lock(&sport->port.lock);
-+ uart_port_lock(&sport->port);
- status = UART_GET_UTSR0(sport);
- status &= SM_TO_UTSR0(sport->port.read_status_mask) | ~UTSR0_TFS;
- do {
-@@ -276,7 +276,7 @@ static irqreturn_t sa1100_int(int irq, v
- status &= SM_TO_UTSR0(sport->port.read_status_mask) |
- ~UTSR0_TFS;
- } while (status & (UTSR0_TFS | UTSR0_RFS | UTSR0_RID));
-- spin_unlock(&sport->port.lock);
-+ uart_port_unlock(&sport->port);
-
- return IRQ_HANDLED;
- }
-@@ -321,14 +321,14 @@ static void sa1100_break_ctl(struct uart
- unsigned long flags;
- unsigned int utcr3;
-
-- spin_lock_irqsave(&sport->port.lock, flags);
-+ uart_port_lock_irqsave(&sport->port, &flags);
- utcr3 = UART_GET_UTCR3(sport);
- if (break_state == -1)
- utcr3 |= UTCR3_BRK;
- else
- utcr3 &= ~UTCR3_BRK;
- UART_PUT_UTCR3(sport, utcr3);
-- spin_unlock_irqrestore(&sport->port.lock, flags);
-+ uart_port_unlock_irqrestore(&sport->port, flags);
- }
-
- static int sa1100_startup(struct uart_port *port)
-@@ -354,9 +354,9 @@ static int sa1100_startup(struct uart_po
- /*
- * Enable modem status interrupts
- */
-- spin_lock_irq(&sport->port.lock);
-+ uart_port_lock_irq(&sport->port);
- sa1100_enable_ms(&sport->port);
-- spin_unlock_irq(&sport->port.lock);
-+ uart_port_unlock_irq(&sport->port);
-
- return 0;
- }
-@@ -423,7 +423,7 @@ sa1100_set_termios(struct uart_port *por
-
- del_timer_sync(&sport->timer);
-
-- spin_lock_irqsave(&sport->port.lock, flags);
-+ uart_port_lock_irqsave(&sport->port, &flags);
-
- sport->port.read_status_mask &= UTSR0_TO_SM(UTSR0_TFS);
- sport->port.read_status_mask |= UTSR1_TO_SM(UTSR1_ROR);
-@@ -485,7 +485,7 @@ sa1100_set_termios(struct uart_port *por
- if (UART_ENABLE_MS(&sport->port, termios->c_cflag))
- sa1100_enable_ms(&sport->port);
-
-- spin_unlock_irqrestore(&sport->port.lock, flags);
-+ uart_port_unlock_irqrestore(&sport->port, flags);
- }
-
- static const char *sa1100_type(struct uart_port *port)