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-rw-r--r--debian/patches-rt/0031-serial-jsm-Use-port-lock-wrappers.patch124
1 files changed, 0 insertions, 124 deletions
diff --git a/debian/patches-rt/0031-serial-jsm-Use-port-lock-wrappers.patch b/debian/patches-rt/0031-serial-jsm-Use-port-lock-wrappers.patch
deleted file mode 100644
index 4326b333a7..0000000000
--- a/debian/patches-rt/0031-serial-jsm-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,124 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:48 +0206
-Subject: [PATCH 031/134] serial: jsm: 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/20230914183831.587273-32-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/jsm/jsm_neo.c | 4 ++--
- drivers/tty/serial/jsm/jsm_tty.c | 16 ++++++++--------
- 2 files changed, 10 insertions(+), 10 deletions(-)
-
---- a/drivers/tty/serial/jsm/jsm_neo.c
-+++ b/drivers/tty/serial/jsm/jsm_neo.c
-@@ -816,9 +816,9 @@ static void neo_parse_isr(struct jsm_boa
- /* Parse any modem signal changes */
- jsm_dbg(INTR, &ch->ch_bd->pci_dev,
- "MOD_STAT: sending to parse_modem_sigs\n");
-- spin_lock_irqsave(&ch->uart_port.lock, lock_flags);
-+ uart_port_lock_irqsave(&ch->uart_port, &lock_flags);
- neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
-- spin_unlock_irqrestore(&ch->uart_port.lock, lock_flags);
-+ uart_port_unlock_irqrestore(&ch->uart_port, lock_flags);
- }
- }
-
---- a/drivers/tty/serial/jsm/jsm_tty.c
-+++ b/drivers/tty/serial/jsm/jsm_tty.c
-@@ -152,14 +152,14 @@ static void jsm_tty_send_xchar(struct ua
- container_of(port, struct jsm_channel, uart_port);
- struct ktermios *termios;
-
-- spin_lock_irqsave(&port->lock, lock_flags);
-+ uart_port_lock_irqsave(port, &lock_flags);
- termios = &port->state->port.tty->termios;
- if (ch == termios->c_cc[VSTART])
- channel->ch_bd->bd_ops->send_start_character(channel);
-
- if (ch == termios->c_cc[VSTOP])
- channel->ch_bd->bd_ops->send_stop_character(channel);
-- spin_unlock_irqrestore(&port->lock, lock_flags);
-+ uart_port_unlock_irqrestore(port, lock_flags);
- }
-
- static void jsm_tty_stop_rx(struct uart_port *port)
-@@ -176,13 +176,13 @@ static void jsm_tty_break(struct uart_po
- struct jsm_channel *channel =
- container_of(port, struct jsm_channel, uart_port);
-
-- spin_lock_irqsave(&port->lock, lock_flags);
-+ uart_port_lock_irqsave(port, &lock_flags);
- if (break_state == -1)
- channel->ch_bd->bd_ops->send_break(channel);
- else
- channel->ch_bd->bd_ops->clear_break(channel);
-
-- spin_unlock_irqrestore(&port->lock, lock_flags);
-+ uart_port_unlock_irqrestore(port, lock_flags);
- }
-
- static int jsm_tty_open(struct uart_port *port)
-@@ -241,7 +241,7 @@ static int jsm_tty_open(struct uart_port
- channel->ch_cached_lsr = 0;
- channel->ch_stops_sent = 0;
-
-- spin_lock_irqsave(&port->lock, lock_flags);
-+ uart_port_lock_irqsave(port, &lock_flags);
- termios = &port->state->port.tty->termios;
- channel->ch_c_cflag = termios->c_cflag;
- channel->ch_c_iflag = termios->c_iflag;
-@@ -261,7 +261,7 @@ static int jsm_tty_open(struct uart_port
- jsm_carrier(channel);
-
- channel->ch_open_count++;
-- spin_unlock_irqrestore(&port->lock, lock_flags);
-+ uart_port_unlock_irqrestore(port, lock_flags);
-
- jsm_dbg(OPEN, &channel->ch_bd->pci_dev, "finish\n");
- return 0;
-@@ -307,7 +307,7 @@ static void jsm_tty_set_termios(struct u
- struct jsm_channel *channel =
- container_of(port, struct jsm_channel, uart_port);
-
-- spin_lock_irqsave(&port->lock, lock_flags);
-+ uart_port_lock_irqsave(port, &lock_flags);
- channel->ch_c_cflag = termios->c_cflag;
- channel->ch_c_iflag = termios->c_iflag;
- channel->ch_c_oflag = termios->c_oflag;
-@@ -317,7 +317,7 @@ static void jsm_tty_set_termios(struct u
-
- channel->ch_bd->bd_ops->param(channel);
- jsm_carrier(channel);
-- spin_unlock_irqrestore(&port->lock, lock_flags);
-+ uart_port_unlock_irqrestore(port, lock_flags);
- }
-
- static const char *jsm_tty_type(struct uart_port *port)