[DCCP]: Warn when discarding packet due to internal errors
This adds a (debug) warning message which is triggered whenever a packet is
discarded due to send failure.
It also adds a conditional, so that an interruption during dccp_wait_for_ccid
is not treated as a `BUG': the rationale is that interruptions are external,
whereas bug warnings are concerned with the internals.
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
net/dccp/output.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -242,7 +242,7 @@ void dccp_write_xmit(struct sock *sk, in
break;
} else
err = dccp_wait_for_ccid(sk, skb);
- if (err)
+ if (err && err != -EINTR)
DCCP_BUG("err=%d after dccp_wait_for_ccid", err);
}
@@ -268,8 +268,10 @@ void dccp_write_xmit(struct sock *sk, in
if (err)
DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
err);
- } else
+ } else {
+ dccp_pr_debug("packet discarded\n");
kfree(skb);
+ }
}
}
-
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