From 8c065e72d7829ba7efeb3c93d98c602f7ba3d158 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:47 +0200 Subject: Adding debian version 6.9.2-1~exp1. Signed-off-by: Daniel Baumann --- ...-serial-meson-Use-uart_prepare_sysrq_char.patch | 77 ---------------------- 1 file changed, 77 deletions(-) delete mode 100644 debian/patches-rt/0004-serial-meson-Use-uart_prepare_sysrq_char.patch (limited to 'debian/patches-rt/0004-serial-meson-Use-uart_prepare_sysrq_char.patch') diff --git a/debian/patches-rt/0004-serial-meson-Use-uart_prepare_sysrq_char.patch b/debian/patches-rt/0004-serial-meson-Use-uart_prepare_sysrq_char.patch deleted file mode 100644 index d85b4e4333..0000000000 --- a/debian/patches-rt/0004-serial-meson-Use-uart_prepare_sysrq_char.patch +++ /dev/null @@ -1,77 +0,0 @@ -From: Sebastian Andrzej Siewior -Date: Fri, 1 Mar 2024 22:45:17 +0100 -Subject: [PATCH 04/18] serial: meson: Use uart_prepare_sysrq_char(). -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.8/older/patches-6.8.2-rt11.tar.xz - -The port lock is a spinlock_t which is becomes a sleeping lock on PREEMPT_RT. -The driver splits the locking function into two parts: local_irq_save() and -uart_port_lock() and this breaks PREEMPT_RT. - -Delay handling sysrq until port lock is dropped. -Remove the special case in the console write routine an always use the -complete locking function. - -Cc: Kevin Hilman -Cc: Jerome Brunet -Cc: linux-arm-kernel@lists.infradead.org -Cc: linux-amlogic@lists.infradead.org -Link: https://lore.kernel.org/r/20240301215246.891055-5-bigeasy@linutronix.de -Signed-off-by: Sebastian Andrzej Siewior ---- - drivers/tty/serial/meson_uart.c | 22 ++++++++-------------- - 1 file changed, 8 insertions(+), 14 deletions(-) - ---- a/drivers/tty/serial/meson_uart.c -+++ b/drivers/tty/serial/meson_uart.c -@@ -220,7 +220,7 @@ static void meson_receive_chars(struct u - continue; - } - -- if (uart_handle_sysrq_char(port, ch)) -+ if (uart_prepare_sysrq_char(port, ch)) - continue; - - if ((status & port->ignore_status_mask) == 0) -@@ -248,7 +248,7 @@ static irqreturn_t meson_uart_interrupt( - meson_uart_start_tx(port); - } - -- uart_port_unlock(port); -+ uart_unlock_and_check_sysrq(port); - - return IRQ_HANDLED; - } -@@ -556,18 +556,13 @@ static void meson_serial_port_write(stru - u_int count) - { - unsigned long flags; -- int locked; -+ int locked = 1; - u32 val, tmp; - -- local_irq_save(flags); -- if (port->sysrq) { -- locked = 0; -- } else if (oops_in_progress) { -- locked = uart_port_trylock(port); -- } else { -- uart_port_lock(port); -- locked = 1; -- } -+ if (oops_in_progress) -+ locked = uart_port_trylock_irqsave(port, &flags); -+ else -+ uart_port_lock_irqsave(port, &flags); - - val = readl(port->membase + AML_UART_CONTROL); - tmp = val & ~(AML_UART_TX_INT_EN | AML_UART_RX_INT_EN); -@@ -577,8 +572,7 @@ static void meson_serial_port_write(stru - writel(val, port->membase + AML_UART_CONTROL); - - if (locked) -- uart_port_unlock(port); -- local_irq_restore(flags); -+ uart_port_unlock_irqrestore(port, flags); - } - - static void meson_serial_console_write(struct console *co, const char *s, -- cgit v1.2.3