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-rw-r--r--debian/patches-rt/0028-serial-icom-Use-port-lock-wrappers.patch151
1 files changed, 0 insertions, 151 deletions
diff --git a/debian/patches-rt/0028-serial-icom-Use-port-lock-wrappers.patch b/debian/patches-rt/0028-serial-icom-Use-port-lock-wrappers.patch
deleted file mode 100644
index da765879ce..0000000000
--- a/debian/patches-rt/0028-serial-icom-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,151 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:45 +0206
-Subject: [PATCH 028/134] serial: icom: 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/20230914183831.587273-29-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/icom.c | 26 +++++++++++++-------------
- 1 file changed, 13 insertions(+), 13 deletions(-)
-
---- a/drivers/tty/serial/icom.c
-+++ b/drivers/tty/serial/icom.c
-@@ -929,7 +929,7 @@ static inline void check_modem_status(st
- char delta_status;
- unsigned char status;
-
-- spin_lock(&icom_port->uart_port.lock);
-+ uart_port_lock(&icom_port->uart_port);
-
- /*modem input register */
- status = readb(&icom_port->dram->isr);
-@@ -951,7 +951,7 @@ static inline void check_modem_status(st
- port.delta_msr_wait);
- old_status = status;
- }
-- spin_unlock(&icom_port->uart_port.lock);
-+ uart_port_unlock(&icom_port->uart_port);
- }
-
- static void xmit_interrupt(u16 port_int_reg, struct icom_port *icom_port)
-@@ -1093,7 +1093,7 @@ static void process_interrupt(u16 port_i
- struct icom_port *icom_port)
- {
-
-- spin_lock(&icom_port->uart_port.lock);
-+ uart_port_lock(&icom_port->uart_port);
- trace(icom_port, "INTERRUPT", port_int_reg);
-
- if (port_int_reg & (INT_XMIT_COMPLETED | INT_XMIT_DISABLED))
-@@ -1102,7 +1102,7 @@ static void process_interrupt(u16 port_i
- if (port_int_reg & INT_RCV_COMPLETED)
- recv_interrupt(port_int_reg, icom_port);
-
-- spin_unlock(&icom_port->uart_port.lock);
-+ uart_port_unlock(&icom_port->uart_port);
- }
-
- static irqreturn_t icom_interrupt(int irq, void *dev_id)
-@@ -1186,14 +1186,14 @@ static unsigned int icom_tx_empty(struct
- int ret;
- unsigned long flags;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- if (le16_to_cpu(icom_port->statStg->xmit[0].flags) &
- SA_FLAGS_READY_TO_XMIT)
- ret = TIOCSER_TEMT;
- else
- ret = 0;
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- return ret;
- }
-
-@@ -1276,7 +1276,7 @@ static void icom_send_xchar(struct uart_
-
- /* wait .1 sec to send char */
- for (index = 0; index < 10; index++) {
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- xdata = readb(&icom_port->dram->xchar);
- if (xdata == 0x00) {
- trace(icom_port, "QUICK_WRITE", 0);
-@@ -1284,10 +1284,10 @@ static void icom_send_xchar(struct uart_
-
- /* flush write operation */
- xdata = readb(&icom_port->dram->xchar);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- break;
- }
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- msleep(10);
- }
- }
-@@ -1307,7 +1307,7 @@ static void icom_break(struct uart_port
- unsigned char cmdReg;
- unsigned long flags;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- trace(icom_port, "BREAK", 0);
- cmdReg = readb(&icom_port->dram->CmdReg);
- if (break_state == -1) {
-@@ -1315,7 +1315,7 @@ static void icom_break(struct uart_port
- } else {
- writeb(cmdReg & ~CMD_SND_BREAK, &icom_port->dram->CmdReg);
- }
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static int icom_open(struct uart_port *port)
-@@ -1365,7 +1365,7 @@ static void icom_set_termios(struct uart
- unsigned long offset;
- unsigned long flags;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- trace(icom_port, "CHANGE_SPEED", 0);
-
- cflag = termios->c_cflag;
-@@ -1516,7 +1516,7 @@ static void icom_set_termios(struct uart
- trace(icom_port, "XR_ENAB", 0);
- writeb(CMD_XMIT_RCV_ENABLE, &icom_port->dram->CmdReg);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static const char *icom_type(struct uart_port *port)