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 --- ...11-serial-8250_mtk-Use-port-lock-wrappers.patch | 77 ---------------------- 1 file changed, 77 deletions(-) delete mode 100644 debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch (limited to 'debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch') diff --git a/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch b/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch deleted file mode 100644 index a668182042..0000000000 --- a/debian/patches-rt/0011-serial-8250_mtk-Use-port-lock-wrappers.patch +++ /dev/null @@ -1,77 +0,0 @@ -From: Thomas Gleixner -Date: Thu, 14 Sep 2023 20:43:28 +0206 -Subject: [PATCH 011/134] serial: 8250_mtk: 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 -Reviewed-by: Chen-Yu Tsai -Signed-off-by: John Ogness -Link: https://lore.kernel.org/r/20230914183831.587273-12-john.ogness@linutronix.de -Signed-off-by: Greg Kroah-Hartman -Signed-off-by: Sebastian Andrzej Siewior ---- - drivers/tty/serial/8250/8250_mtk.c | 8 ++++---- - 1 file changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/tty/serial/8250/8250_mtk.c -+++ b/drivers/tty/serial/8250/8250_mtk.c -@@ -102,7 +102,7 @@ static void mtk8250_dma_rx_complete(void - if (data->rx_status == DMA_RX_SHUTDOWN) - return; - -- spin_lock_irqsave(&up->port.lock, flags); -+ uart_port_lock_irqsave(&up->port, &flags); - - dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state); - total = dma->rx_size - state.residue; -@@ -128,7 +128,7 @@ static void mtk8250_dma_rx_complete(void - - mtk8250_rx_dma(up); - -- spin_unlock_irqrestore(&up->port.lock, flags); -+ uart_port_unlock_irqrestore(&up->port, flags); - } - - static void mtk8250_rx_dma(struct uart_8250_port *up) -@@ -368,7 +368,7 @@ mtk8250_set_termios(struct uart_port *po - * Ok, we're now changing the port state. Do it with - * interrupts disabled. - */ -- spin_lock_irqsave(&port->lock, flags); -+ uart_port_lock_irqsave(port, &flags); - - /* - * Update the per-port timeout. -@@ -416,7 +416,7 @@ mtk8250_set_termios(struct uart_port *po - if (uart_console(port)) - up->port.cons->cflag = termios->c_cflag; - -- spin_unlock_irqrestore(&port->lock, flags); -+ uart_port_unlock_irqrestore(port, flags); - /* Don't rewrite B0 */ - if (tty_termios_baud_rate(termios)) - tty_termios_encode_baud_rate(termios, baud, baud); -- cgit v1.2.3