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Diffstat (limited to '')
| -rw-r--r-- | debian/patches-rt/0133-serial-8250-revert-drop-lockdep-annotation-from-seri.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/debian/patches-rt/0133-serial-8250-revert-drop-lockdep-annotation-from-seri.patch b/debian/patches-rt/0133-serial-8250-revert-drop-lockdep-annotation-from-seri.patch new file mode 100644 index 000000000..c9eba0a73 --- /dev/null +++ b/debian/patches-rt/0133-serial-8250-revert-drop-lockdep-annotation-from-seri.patch @@ -0,0 +1,29 @@ +From: John Ogness <john.ogness@linutronix.de> +Date: Mon, 2 Oct 2023 15:30:43 +0000 +Subject: [PATCH 133/134] serial: 8250: revert "drop lockdep annotation from + serial8250_clear_IER()" +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz + +The 8250 driver no longer depends on @oops_in_progress and +will no longer violate the port->lock locking constraints. + +This reverts commit 3d9e6f556e235ddcdc9f73600fdd46fe1736b090. + +Signed-off-by: John Ogness <john.ogness@linutronix.de> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + drivers/tty/serial/8250/8250_port.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/tty/serial/8250/8250_port.c ++++ b/drivers/tty/serial/8250/8250_port.c +@@ -728,6 +728,9 @@ static void __serial8250_clear_IER(struc + + static inline void serial8250_clear_IER(struct uart_8250_port *up) + { ++ /* Port locked to synchronize UART_IER access against the console. */ ++ lockdep_assert_held_once(&up->port.lock); ++ + __serial8250_clear_IER(up); + } + |