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-rw-r--r--debian/patches-rt/0067-serial-sunsab-Use-port-lock-wrappers.patch176
1 files changed, 0 insertions, 176 deletions
diff --git a/debian/patches-rt/0067-serial-sunsab-Use-port-lock-wrappers.patch b/debian/patches-rt/0067-serial-sunsab-Use-port-lock-wrappers.patch
deleted file mode 100644
index b96d5080cd..0000000000
--- a/debian/patches-rt/0067-serial-sunsab-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,176 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:24 +0206
-Subject: [PATCH 067/134] serial: sunsab: 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/20230914183831.587273-68-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/sunsab.c | 34 +++++++++++++++++-----------------
- 1 file changed, 17 insertions(+), 17 deletions(-)
-
---- a/drivers/tty/serial/sunsab.c
-+++ b/drivers/tty/serial/sunsab.c
-@@ -310,7 +310,7 @@ static irqreturn_t sunsab_interrupt(int
- unsigned long flags;
- unsigned char gis;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- status.stat = 0;
- gis = readb(&up->regs->r.gis) >> up->gis_shift;
-@@ -331,7 +331,7 @@ static irqreturn_t sunsab_interrupt(int
- transmit_chars(up, &status);
- }
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- if (port)
- tty_flip_buffer_push(port);
-@@ -473,12 +473,12 @@ static void sunsab_send_xchar(struct uar
- if (ch == __DISABLED_CHAR)
- return;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- sunsab_tec_wait(up);
- writeb(ch, &up->regs->w.tic);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- /* port->lock held by caller. */
-@@ -499,7 +499,7 @@ static void sunsab_break_ctl(struct uart
- unsigned long flags;
- unsigned char val;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- val = up->cached_dafo;
- if (break_state)
-@@ -512,7 +512,7 @@ static void sunsab_break_ctl(struct uart
- if (test_bit(SAB82532_XPR, &up->irqflags))
- sunsab_tx_idle(up);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- /* port->lock is not held. */
-@@ -527,7 +527,7 @@ static int sunsab_startup(struct uart_po
- if (err)
- return err;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- /*
- * Wait for any commands or immediate characters
-@@ -582,7 +582,7 @@ static int sunsab_startup(struct uart_po
- set_bit(SAB82532_ALLS, &up->irqflags);
- set_bit(SAB82532_XPR, &up->irqflags);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- return 0;
- }
-@@ -594,7 +594,7 @@ static void sunsab_shutdown(struct uart_
- container_of(port, struct uart_sunsab_port, port);
- unsigned long flags;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- /* Disable Interrupts */
- up->interrupt_mask0 = 0xff;
-@@ -628,7 +628,7 @@ static void sunsab_shutdown(struct uart_
- writeb(tmp, &up->regs->rw.ccr0);
- #endif
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- free_irq(up->port.irq, up);
- }
-
-@@ -779,9 +779,9 @@ static void sunsab_set_termios(struct ua
- unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);
- unsigned int quot = uart_get_divisor(port, baud);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
- sunsab_convert_to_sab(up, termios->c_cflag, termios->c_iflag, baud, quot);
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static const char *sunsab_type(struct uart_port *port)
-@@ -857,15 +857,15 @@ static void sunsab_console_write(struct
- int locked = 1;
-
- if (up->port.sysrq || oops_in_progress)
-- locked = spin_trylock_irqsave(&up->port.lock, flags);
-+ locked = uart_port_trylock_irqsave(&up->port, &flags);
- else
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- uart_console_write(&up->port, s, n, sunsab_console_putchar);
- sunsab_tec_wait(up);
-
- if (locked)
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static int sunsab_console_setup(struct console *con, char *options)
-@@ -914,7 +914,7 @@ static int sunsab_console_setup(struct c
- */
- sunsab_startup(&up->port);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- /*
- * Finally, enable interrupts
-@@ -932,7 +932,7 @@ static int sunsab_console_setup(struct c
- sunsab_convert_to_sab(up, con->cflag, 0, baud, quot);
- sunsab_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- return 0;
- }
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 09:10:20 +0000