From 0cc120bea1d4ba3893a26c70d271e89f928b8a97 Mon Sep 17 00:00:00 2001 From: Satyam Sharma Date: Fri, 10 Aug 2007 15:30:31 -0700 Subject: [PATCH] [NET] netconsole: Use netif_running() in write_msg() Based upon initial work by Keiichi Kii . Avoid unnecessarily disabling interrupts and calling netpoll_send_udp() if the corresponding local interface is not up. Signed-off-by: Satyam Sharma Acked-by: Keiichi Kii Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/net/netconsole.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index e56aa6c9743..75cb76139dd 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -75,16 +75,16 @@ static void write_msg(struct console *con, const char *msg, unsigned int len) int frag, left; unsigned long flags; - local_irq_save(flags); - - for (left = len; left;) { - frag = min(left, MAX_PRINT_CHUNK); - netpoll_send_udp(&np, msg, frag); - msg += frag; - left -= frag; + if (netif_running(np.dev)) { + local_irq_save(flags); + for (left = len; left;) { + frag = min(left, MAX_PRINT_CHUNK); + netpoll_send_udp(&np, msg, frag); + msg += frag; + left -= frag; + } + local_irq_restore(flags); } - - local_irq_restore(flags); } static struct console netconsole = { -- 2.41.1