From 27d3313807296c3943a96ceef8c2b7279cb56962 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 19:39:59 +0200 Subject: Adding debian version 6.7.7-1. Signed-off-by: Daniel Baumann --- ...0073-serial-vt8500-Use-port-lock-wrappers.patch | 76 ---------------------- 1 file changed, 76 deletions(-) delete mode 100644 debian/patches-rt/0073-serial-vt8500-Use-port-lock-wrappers.patch (limited to 'debian/patches-rt/0073-serial-vt8500-Use-port-lock-wrappers.patch') diff --git a/debian/patches-rt/0073-serial-vt8500-Use-port-lock-wrappers.patch b/debian/patches-rt/0073-serial-vt8500-Use-port-lock-wrappers.patch deleted file mode 100644 index 7209ed0661..0000000000 --- a/debian/patches-rt/0073-serial-vt8500-Use-port-lock-wrappers.patch +++ /dev/null @@ -1,76 +0,0 @@ -From: Thomas Gleixner -Date: Thu, 14 Sep 2023 20:44:30 +0206 -Subject: [PATCH 073/134] serial: vt8500: 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 -Signed-off-by: John Ogness -Link: https://lore.kernel.org/r/20230914183831.587273-74-john.ogness@linutronix.de -Signed-off-by: Greg Kroah-Hartman -Signed-off-by: Sebastian Andrzej Siewior ---- - drivers/tty/serial/vt8500_serial.c | 8 ++++---- - 1 file changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/tty/serial/vt8500_serial.c -+++ b/drivers/tty/serial/vt8500_serial.c -@@ -227,7 +227,7 @@ static irqreturn_t vt8500_irq(int irq, v - struct uart_port *port = dev_id; - unsigned long isr; - -- spin_lock(&port->lock); -+ uart_port_lock(port); - isr = vt8500_read(port, VT8500_URISR); - - /* Acknowledge active status bits */ -@@ -240,7 +240,7 @@ static irqreturn_t vt8500_irq(int irq, v - if (isr & TCTS) - handle_delta_cts(port); - -- spin_unlock(&port->lock); -+ uart_port_unlock(port); - - return IRQ_HANDLED; - } -@@ -342,7 +342,7 @@ static void vt8500_set_termios(struct ua - unsigned int baud, lcr; - unsigned int loops = 1000; - -- spin_lock_irqsave(&port->lock, flags); -+ uart_port_lock_irqsave(port, &flags); - - /* calculate and set baud rate */ - baud = uart_get_baud_rate(port, termios, old, 900, 921600); -@@ -410,7 +410,7 @@ static void vt8500_set_termios(struct ua - vt8500_write(&vt8500_port->uart, 0x881, VT8500_URFCR); - vt8500_write(&vt8500_port->uart, vt8500_port->ier, VT8500_URIER); - -- spin_unlock_irqrestore(&port->lock, flags); -+ uart_port_unlock_irqrestore(port, flags); - } - - static const char *vt8500_type(struct uart_port *port) -- cgit v1.2.3