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 --- ...23-serial-cpm_uart-Use-port-lock-wrappers.patch | 70 ---------------------- 1 file changed, 70 deletions(-) delete mode 100644 debian/patches-rt/0023-serial-cpm_uart-Use-port-lock-wrappers.patch (limited to 'debian/patches-rt/0023-serial-cpm_uart-Use-port-lock-wrappers.patch') diff --git a/debian/patches-rt/0023-serial-cpm_uart-Use-port-lock-wrappers.patch b/debian/patches-rt/0023-serial-cpm_uart-Use-port-lock-wrappers.patch deleted file mode 100644 index c3400eac99..0000000000 --- a/debian/patches-rt/0023-serial-cpm_uart-Use-port-lock-wrappers.patch +++ /dev/null @@ -1,70 +0,0 @@ -From: Thomas Gleixner -Date: Thu, 14 Sep 2023 20:43:40 +0206 -Subject: [PATCH 023/134] serial: cpm_uart: 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/20230914183831.587273-24-john.ogness@linutronix.de -Signed-off-by: Greg Kroah-Hartman -Signed-off-by: Sebastian Andrzej Siewior ---- - drivers/tty/serial/cpm_uart.c | 8 ++++---- - 1 file changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/tty/serial/cpm_uart.c -+++ b/drivers/tty/serial/cpm_uart.c -@@ -569,7 +569,7 @@ static void cpm_uart_set_termios(struct - if ((termios->c_cflag & CREAD) == 0) - port->read_status_mask &= ~BD_SC_EMPTY; - -- spin_lock_irqsave(&port->lock, flags); -+ uart_port_lock_irqsave(port, &flags); - - if (IS_SMC(pinfo)) { - unsigned int bits = tty_get_frame_size(termios->c_cflag); -@@ -609,7 +609,7 @@ static void cpm_uart_set_termios(struct - clk_set_rate(pinfo->clk, baud); - else - cpm_setbrg(pinfo->brg - 1, baud); -- spin_unlock_irqrestore(&port->lock, flags); -+ uart_port_unlock_irqrestore(port, flags); - } - - static const char *cpm_uart_type(struct uart_port *port) -@@ -1386,9 +1386,9 @@ static void cpm_uart_console_write(struc - cpm_uart_early_write(pinfo, s, count, true); - local_irq_restore(flags); - } else { -- spin_lock_irqsave(&pinfo->port.lock, flags); -+ uart_port_lock_irqsave(&pinfo->port, &flags); - cpm_uart_early_write(pinfo, s, count, true); -- spin_unlock_irqrestore(&pinfo->port.lock, flags); -+ uart_port_unlock_irqrestore(&pinfo->port, flags); - } - } - -- cgit v1.2.3