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-rw-r--r--debian/patches-rt/0030-serial-ip22zilog-Use-port-lock-wrappers.patch185
1 files changed, 0 insertions, 185 deletions
diff --git a/debian/patches-rt/0030-serial-ip22zilog-Use-port-lock-wrappers.patch b/debian/patches-rt/0030-serial-ip22zilog-Use-port-lock-wrappers.patch
deleted file mode 100644
index c1307a246b..0000000000
--- a/debian/patches-rt/0030-serial-ip22zilog-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,185 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:47 +0206
-Subject: [PATCH 030/134] serial: ip22zilog: 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/20230914183831.587273-31-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/ip22zilog.c | 36 ++++++++++++++++++------------------
- 1 file changed, 18 insertions(+), 18 deletions(-)
-
---- a/drivers/tty/serial/ip22zilog.c
-+++ b/drivers/tty/serial/ip22zilog.c
-@@ -432,7 +432,7 @@ static irqreturn_t ip22zilog_interrupt(i
- unsigned char r3;
- bool push = false;
-
-- spin_lock(&up->port.lock);
-+ uart_port_lock(&up->port);
- r3 = read_zsreg(channel, R3);
-
- /* Channel A */
-@@ -448,7 +448,7 @@ static irqreturn_t ip22zilog_interrupt(i
- if (r3 & CHATxIP)
- ip22zilog_transmit_chars(up, channel);
- }
-- spin_unlock(&up->port.lock);
-+ uart_port_unlock(&up->port);
-
- if (push)
- tty_flip_buffer_push(&up->port.state->port);
-@@ -458,7 +458,7 @@ static irqreturn_t ip22zilog_interrupt(i
- channel = ZILOG_CHANNEL_FROM_PORT(&up->port);
- push = false;
-
-- spin_lock(&up->port.lock);
-+ uart_port_lock(&up->port);
- if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) {
- writeb(RES_H_IUS, &channel->control);
- ZSDELAY();
-@@ -471,7 +471,7 @@ static irqreturn_t ip22zilog_interrupt(i
- if (r3 & CHBTxIP)
- ip22zilog_transmit_chars(up, channel);
- }
-- spin_unlock(&up->port.lock);
-+ uart_port_unlock(&up->port);
-
- if (push)
- tty_flip_buffer_push(&up->port.state->port);
-@@ -504,11 +504,11 @@ static unsigned int ip22zilog_tx_empty(s
- unsigned char status;
- unsigned int ret;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- status = ip22zilog_read_channel_status(port);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- if (status & Tx_BUF_EMP)
- ret = TIOCSER_TEMT;
-@@ -664,7 +664,7 @@ static void ip22zilog_break_ctl(struct u
- else
- clear_bits |= SND_BRK;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- new_reg = (up->curregs[R5] | set_bits) & ~clear_bits;
- if (new_reg != up->curregs[R5]) {
-@@ -674,7 +674,7 @@ static void ip22zilog_break_ctl(struct u
- write_zsreg(channel, R5, up->curregs[R5]);
- }
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static void __ip22zilog_reset(struct uart_ip22zilog_port *up)
-@@ -735,9 +735,9 @@ static int ip22zilog_startup(struct uart
- if (ZS_IS_CONS(up))
- return 0;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- __ip22zilog_startup(up);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- return 0;
- }
-
-@@ -775,7 +775,7 @@ static void ip22zilog_shutdown(struct ua
- if (ZS_IS_CONS(up))
- return;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- channel = ZILOG_CHANNEL_FROM_PORT(port);
-
-@@ -788,7 +788,7 @@ static void ip22zilog_shutdown(struct ua
- up->curregs[R5] &= ~SND_BRK;
- ip22zilog_maybe_update_regs(up, channel);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- /* Shared by TTY driver and serial console setup. The port lock is held
-@@ -880,7 +880,7 @@ ip22zilog_set_termios(struct uart_port *
-
- baud = uart_get_baud_rate(port, termios, old, 1200, 76800);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
-
-@@ -894,7 +894,7 @@ ip22zilog_set_termios(struct uart_port *
- ip22zilog_maybe_update_regs(up, ZILOG_CHANNEL_FROM_PORT(port));
- uart_update_timeout(port, termios->c_cflag, baud);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static const char *ip22zilog_type(struct uart_port *port)
-@@ -1016,10 +1016,10 @@ ip22zilog_console_write(struct console *
- struct uart_ip22zilog_port *up = &ip22zilog_port_table[con->index];
- unsigned long flags;
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
- uart_console_write(&up->port, s, count, ip22zilog_put_char);
- udelay(2);
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static int __init ip22zilog_console_setup(struct console *con, char *options)
-@@ -1034,13 +1034,13 @@ static int __init ip22zilog_console_setu
-
- printk(KERN_INFO "Console: ttyS%d (IP22-Zilog)\n", con->index);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- up->curregs[R15] |= BRKIE;
-
- __ip22zilog_startup(up);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- if (options)
- uart_parse_options(options, &baud, &parity, &bits, &flow);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 19:49:00 +0000