1 files changed, 0 insertions, 96 deletions
diff --git a/debian/patches-rt/0112-printk-nbcon-Add-unsafe-flushing-on-panic.patch b/debian/patches-rt/0112-printk-nbcon-Add-unsafe-flushing-on-panic.patch
deleted file mode 100644
index cc689de08..000000000
--- a/debian/patches-rt/0112-printk-nbcon-Add-unsafe-flushing-on-panic.patch
+++ /dev/null
@@ -1,96 +0,0 @@
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 20 Oct 2023 10:03:42 +0000
-Subject: [PATCH 112/134] printk: nbcon: Add unsafe flushing on panic
-Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz
-
-Add nbcon_atomic_flush_unsafe() to flush all nbcon consoles
-using the write_atomic() callback and allowing unsafe hostile
-takeovers. Call this at the end of panic() as a final attempt
-to flush any pending messages.
-
-Note that legacy consoles use unsafe methods for flushing
-from the beginning of panic (see bust_spinlocks()). Therefore,
-systems using both legacy and nbcon consoles may still fail to
-see panic messages due to unsafe legacy console usage.
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
----
- include/linux/printk.h |    5 +++++
- kernel/panic.c         |    1 +
- kernel/printk/nbcon.c  |   18 ++++++++++++++++--
- 3 files changed, 22 insertions(+), 2 deletions(-)
-
---- a/include/linux/printk.h
-+++ b/include/linux/printk.h
-@@ -199,6 +199,7 @@ extern asmlinkage void dump_stack(void)
- void printk_trigger_flush(void);
- extern void nbcon_acquire(struct uart_port *up);
- extern void nbcon_release(struct uart_port *up);
-+void nbcon_atomic_flush_unsafe(void);
- #else
- static inline __printf(1, 0)
- int vprintk(const char *s, va_list args)
-@@ -287,6 +288,10 @@ static inline void nbcon_release(struct
- {
- }
- 
-+static inline void nbcon_atomic_flush_unsafe(void)
-+{
-+}
-+
- #endif
- 
- #ifdef CONFIG_SMP
---- a/kernel/panic.c
-+++ b/kernel/panic.c
-@@ -449,6 +449,7 @@ void panic(const char *fmt, ...)
- 	 * Explicitly flush the kernel log buffer one last time.
- 	 */
- 	console_flush_on_panic(CONSOLE_FLUSH_PENDING);
-+	nbcon_atomic_flush_unsafe();
- 
- 	local_irq_enable();
- 	for (i = 0; ; i += PANIC_TIMER_STEP) {
---- a/kernel/printk/nbcon.c
-+++ b/kernel/printk/nbcon.c
-@@ -1030,8 +1030,9 @@ bool nbcon_atomic_emit_next_record(struc
-  * __nbcon_atomic_flush_all - Flush all nbcon consoles using their
-  *					write_atomic() callback
-  * @stop_seq:			Flush up until this record
-+ * @allow_unsafe_takeover:	True, to allow unsafe hostile takeovers
-  */
--static void __nbcon_atomic_flush_all(u64 stop_seq)
-+static void __nbcon_atomic_flush_all(u64 stop_seq, bool allow_unsafe_takeover)
- {
- 	struct nbcon_write_context wctxt = { };
- 	struct nbcon_context *ctxt = &ACCESS_PRIVATE(&wctxt, ctxt);
-@@ -1059,6 +1060,7 @@ static void __nbcon_atomic_flush_all(u64
- 			memset(ctxt, 0, sizeof(*ctxt));
- 			ctxt->console			= con;
- 			ctxt->spinwait_max_us		= 2000;
-+			ctxt->allow_unsafe_takeover	= allow_unsafe_takeover;
- 
- 			/*
- 			 * Atomic flushing does not use console driver
-@@ -1093,7 +1095,19 @@ static void __nbcon_atomic_flush_all(u64
-  */
- void nbcon_atomic_flush_all(void)
- {
--	__nbcon_atomic_flush_all(prb_next_reserve_seq(prb));
-+	__nbcon_atomic_flush_all(prb_next_reserve_seq(prb), false);
-+}
-+
-+/**
-+ * nbcon_atomic_flush_unsafe - Flush all nbcon consoles using their
-+ *	write_atomic() callback and allowing unsafe hostile takeovers
-+ *
-+ * Flush the backlog up through the currently newest record. Unsafe hostile
-+ * takeovers will be performed, if necessary.
-+ */
-+void nbcon_atomic_flush_unsafe(void)
-+{
-+	__nbcon_atomic_flush_all(prb_next_reserve_seq(prb), true);
- }
- 
- /**