From: Satyam Sharma <[EMAIL PROTECTED]>
[4/9] netconsole: Use netif_running() in write_msg()
Avoid unnecessarily disabling interrupts and calling netpoll_send_udp()
if the corresponding local interface is not up.
Signed-off-by: Satyam Sharma <[EMAIL PROTECTED]>
Acked-by: Keiichi Kii <[EMAIL PROTECTED]>
Cc: Matt Mackall <[EMAIL PROTECTED]>
---
drivers/net/netconsole.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index e56aa6c..75cb761 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 = {
-
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