From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 85ED33A7D6F for ; Fri, 24 Jul 2026 07:25:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784877921; cv=none; b=dEBz9JJKViE+Qhk147sxXmWxC3ocoHHh9/T3gqu+e1ehle3ZCi3l2K2C8j4ZKdFHNuWgsfqddL2G8FAo5WzYOs5KlB/CaDTwn8Cs54LsGMxqPqwyYQnl8OAmsoxxZ/WYHneMgEIQ2XGCHtYaDrssmWaLcX3+4hySa4Yzjx1La0M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784877921; c=relaxed/simple; bh=aDAuXLEf5tJ4d6j+WWoC5vsExRedffUtI0haldHKxVk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=VA8xfQat7psXrqTZvl6dI5Lqfv3VF4Ic3uNemtQial/8RLiYaANJMBmObFcTJrp+5I+0jEf6iKwIWgmRLGko27VkKAQGbRzlduEwwfyH4jHLfkQl0azjPjwpQi1JED3ewGOel0bn4zHYCJM3EsMhctO/NbMqJu2qYZvhQbsgSIg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=CMz4X3w4; arc=none smtp.client-ip=95.215.58.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="CMz4X3w4" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1784877915; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=aBWKWkjIoFjEIMuuQonymKiJljJBB82pP/HajYbb/F8=; b=CMz4X3w4gsNH4w11PxU8NMXpr5jpnftmATgzWkXnygqoiRKh9u5ZkXXvBQcbCLWMag6GOl Yx3xHzc57TZINUkMeCa06Oop3/trQVbRrpt1QrXGZfOT5BmWUPrqSDXV6BUtUamz7i5vMd V6zMDLC6w511BVVjm3JBxDOLw2zbmq4= From: Fushuai Wang To: gregkh@linuxfoundation.org, jirislaby@kernel.org, john.ogness@linutronix.de, osama.abdelkader@gmail.com, jackzxcui1989@163.com, asrinivasan@oss.tenstorrent.com, andy.shevchenko@gmail.com, broonie@kernel.org Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Fushuai Wang Subject: [PATCH] Revert "serial: 8250: Clear CON_PRINTBUFFER on port re-registration" Date: Fri, 24 Jul 2026 15:24:52 +0800 Message-Id: <20260724072452.40455-1-fushuai.wang@linux.dev> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: Fushuai Wang This reverts commit d338ab1d90603f875c4f7ed223406535378173a5. This may cause some boot logs to be lost on some platforms. Reported-by: Mark Brown Reported-by: Anirudh Srinivasan Link: https://lore.kernel.org/all/20260522101042.21976-1-fushuai.wang@linux.dev/ Signed-off-by: Fushuai Wang --- 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