[PATCH] Revert "serial: 8250: Clear CON_PRINTBUFFER on port re-registration"

Fushuai Wang <[email protected]> Fri, 24 Jul 2026 15:24:52 +0800
Newsgroups org.kernel.vger.linux-serial,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
From: Fushuai Wang <[email protected]>

This reverts commit d338ab1d90603f875c4f7ed223406535378173a5.

This may cause some boot logs to be lost on some platforms.

Reported-by: Mark Brown <[email protected]>
Reported-by: Anirudh Srinivasan <[email protected]>
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Fushuai Wang <[email protected]>
---
 drivers/tty/serial/8250/8250_core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index c0e8a4efbdcc..f49862d90eeb 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -720,12 +720,8 @@ int serial8250_register_8250_port(const struct uart_8250_port *up)
 	/* Preserve specified console flow control. */
 	cons_flow = uart_cons_flow_enabled(&uart->port);
 
-	if (uart->port.dev) {
-		if (uart_console(&uart->port))
-			uart->port.cons->flags &= ~CON_PRINTBUFFER;
-
+	if (uart->port.dev)
 		uart_remove_one_port(&serial8250_reg, &uart->port);
-	}
 
 	uart->port.ctrl_id	= up->port.ctrl_id;
 	uart->port.port_id	= up->port.port_id;
-- 
2.36.1