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firewire: net: ratelimit error messages

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Unfortunately its easy to trigger such error messages by removing the
cable while sending streams of data over the link.

Such errors are normal, and therefore this patch stops firewire-net from
flooding the kernel log with these errors, by combining series of same
errors together.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>

(Stefan R:)  Eventually we should remove this logging when firewire-net
and related firewire-ohci facilities have been stabilized.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Maxim Levitsky 2010-11-29 04:09:53 +02:00 committed by Stefan Richter
parent dd23736e09
commit c4d6fd40df
1 changed files with 12 additions and 4 deletions
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16
drivers/firewire/net.c
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@ -996,15 +996,23 @@ static void fwnet_transmit_packet_failed(struct fwnet_packet_task *ptask)
static void fwnet_write_complete(struct fw_card *card, int rcode,
void *payload, size_t length, void *data)
{
struct fwnet_packet_task *ptask;
ptask = data;
struct fwnet_packet_task *ptask = data;
static unsigned long j;
static int last_rcode, errors_skipped;
if (rcode == RCODE_COMPLETE) {
fwnet_transmit_packet_done(ptask);
} else {
fw_error("fwnet_write_complete: failed: %x\n", rcode);
fwnet_transmit_packet_failed(ptask);
if (printk_timed_ratelimit(&j, 1000) || rcode != last_rcode) {
fw_error("fwnet_write_complete: "
"failed: %x (skipped %d)\n", rcode, errors_skipped);
errors_skipped = 0;
last_rcode = rcode;
} else
errors_skipped++;
}
}