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-rw-r--r--debian/patches-rt/0059-serial-txx9-Use-port-lock-wrappers.patch134
1 files changed, 0 insertions, 134 deletions
diff --git a/debian/patches-rt/0059-serial-txx9-Use-port-lock-wrappers.patch b/debian/patches-rt/0059-serial-txx9-Use-port-lock-wrappers.patch
deleted file mode 100644
index bbe48684ba..0000000000
--- a/debian/patches-rt/0059-serial-txx9-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,134 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:16 +0206
-Subject: [PATCH 059/134] serial: txx9: 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/20230914183831.587273-60-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/serial_txx9.c | 26 +++++++++++++-------------
- 1 file changed, 13 insertions(+), 13 deletions(-)
-
---- a/drivers/tty/serial/serial_txx9.c
-+++ b/drivers/tty/serial/serial_txx9.c
-@@ -335,13 +335,13 @@ static irqreturn_t serial_txx9_interrupt
- unsigned int status;
-
- while (1) {
-- spin_lock(&up->lock);
-+ uart_port_lock(up);
- status = sio_in(up, TXX9_SIDISR);
- if (!(sio_in(up, TXX9_SIDICR) & TXX9_SIDICR_TIE))
- status &= ~TXX9_SIDISR_TDIS;
- if (!(status & (TXX9_SIDISR_TDIS | TXX9_SIDISR_RDIS |
- TXX9_SIDISR_TOUT))) {
-- spin_unlock(&up->lock);
-+ uart_port_unlock(up);
- break;
- }
-
-@@ -353,7 +353,7 @@ static irqreturn_t serial_txx9_interrupt
- sio_mask(up, TXX9_SIDISR,
- TXX9_SIDISR_TDIS | TXX9_SIDISR_RDIS |
- TXX9_SIDISR_TOUT);
-- spin_unlock(&up->lock);
-+ uart_port_unlock(up);
-
- if (pass_counter++ > PASS_LIMIT)
- break;
-@@ -367,9 +367,9 @@ static unsigned int serial_txx9_tx_empty
- unsigned long flags;
- unsigned int ret;
-
-- spin_lock_irqsave(&up->lock, flags);
-+ uart_port_lock_irqsave(up, &flags);
- ret = (sio_in(up, TXX9_SICISR) & TXX9_SICISR_TXALS) ? TIOCSER_TEMT : 0;
-- spin_unlock_irqrestore(&up->lock, flags);
-+ uart_port_unlock_irqrestore(up, flags);
-
- return ret;
- }
-@@ -399,12 +399,12 @@ static void serial_txx9_break_ctl(struct
- {
- unsigned long flags;
-
-- spin_lock_irqsave(&up->lock, flags);
-+ uart_port_lock_irqsave(up, &flags);
- if (break_state == -1)
- sio_set(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);
- else
- sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_TBRK);
-- spin_unlock_irqrestore(&up->lock, flags);
-+ uart_port_unlock_irqrestore(up, flags);
- }
-
- #if defined(CONFIG_SERIAL_TXX9_CONSOLE) || defined(CONFIG_CONSOLE_POLL)
-@@ -517,9 +517,9 @@ static int serial_txx9_startup(struct ua
- /*
- * Now, initialize the UART
- */
-- spin_lock_irqsave(&up->lock, flags);
-+ uart_port_lock_irqsave(up, &flags);
- serial_txx9_set_mctrl(up, up->mctrl);
-- spin_unlock_irqrestore(&up->lock, flags);
-+ uart_port_unlock_irqrestore(up, flags);
-
- /* Enable RX/TX */
- sio_mask(up, TXX9_SIFLCR, TXX9_SIFLCR_RSDE | TXX9_SIFLCR_TSDE);
-@@ -541,9 +541,9 @@ static void serial_txx9_shutdown(struct
- */
- sio_out(up, TXX9_SIDICR, 0); /* disable all intrs */
-
-- spin_lock_irqsave(&up->lock, flags);
-+ uart_port_lock_irqsave(up, &flags);
- serial_txx9_set_mctrl(up, up->mctrl);
-- spin_unlock_irqrestore(&up->lock, flags);
-+ uart_port_unlock_irqrestore(up, flags);
-
- /*
- * Disable break condition
-@@ -625,7 +625,7 @@ serial_txx9_set_termios(struct uart_port
- * Ok, we're now changing the port state. Do it with
- * interrupts disabled.
- */
-- spin_lock_irqsave(&up->lock, flags);
-+ uart_port_lock_irqsave(up, &flags);
-
- /*
- * Update the per-port timeout.
-@@ -676,7 +676,7 @@ serial_txx9_set_termios(struct uart_port
- sio_out(up, TXX9_SIFCR, fcr);
-
- serial_txx9_set_mctrl(up, up->mctrl);
-- spin_unlock_irqrestore(&up->lock, flags);
-+ uart_port_unlock_irqrestore(up, flags);
- }
-
- static void