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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-09-26 09:14:34 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-09-26 16:38:44 -0700
commit7808a4c4853fa0203085cf2217e01823d9f0c70c (patch)
tree066da7c548ab63e69e8775075cd7f4beae893e78 /drivers/tty
parentcf16807b61d15e42b20407c954a01a3774520ea7 (diff)
downloadop-kernel-dev-7808a4c4853fa0203085cf2217e01823d9f0c70c.zip
op-kernel-dev-7808a4c4853fa0203085cf2217e01823d9f0c70c.tar.gz
8250: ratelimit LSR safety check engaged warning.
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 <alan@linux.intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/8250.c4
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;
}
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