From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: [PATCH 59/79] 8250: ratelimit LSR safety check engaged warning. Date: Wed, 26 Oct 2011 14:13:04 +0200 Message-ID: <1319631204-23262-59-git-send-email-gregkh@suse.de> References: <20111026114236.GA22180@kroah.com> <1319631204-23262-1-git-send-email-gregkh@suse.de> Return-path: Received: from cantor2.suse.de ([195.135.220.15]:32834 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932915Ab1JZMNz (ORCPT ); Wed, 26 Oct 2011 08:13:55 -0400 In-Reply-To: <1319631204-23262-1-git-send-email-gregkh@suse.de> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: linux-serial@vger.kernel.org Cc: Konrad Rzeszutek Wilk , Alan Cox , Greg Kroah-Hartman From: Konrad Rzeszutek Wilk On my BIOSTAR TA890FXE the ttyS0 ends up spewing: [904682.485933] ttyS0: LSR safety check engaged! [904692.505895] ttyS0: LSR safety check engaged! [904702.525972] ttyS0: LSR safety check engaged! [904712.545967] ttyS0: LSR safety check engaged! [904722.566125] ttyS0: LSR safety check engaged! .. lets limit it so it won't be the only thing visible in the ring buffer. CC: Alan Cox Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index 82ca71a..076e9c6 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -2055,8 +2055,8 @@ static int serial8250_startup(struct uart_port *port) */ if (!(up->port.flags & UPF_BUGGY_UART) && (serial_inp(up, UART_LSR) == 0xff)) { - printk(KERN_INFO "ttyS%d: LSR safety check engaged!\n", - serial_index(&up->port)); + printk_ratelimited(KERN_INFO "ttyS%d: LSR safety check engaged!\n", + serial_index(&up->port)); return -ENODEV; } -- 1.7.7