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[NET] netconsole: Use netif_running() in write_msg() 

Based upon initial work by Keiichi Kii <k-keiichi@bx.jp.nec.com>.

Avoid unnecessarily disabling interrupts and calling netpoll_send_udp() if the
corresponding local interface is not up.

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Acked-by: Keiichi Kii <k-keiichi@bx.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Satyam Sharma 2007-08-10 15:30:31 -07:00 committed by David S. Miller
parent d2b60881e2
commit 0cc120bea1
1 changed files with 9 additions and 9 deletions
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18
drivers/net/netconsole.c
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@ -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 = {