[DCCP]: Wrapper for non-ratelimited error messages
This
* provides a wrapper for internal, functional errors
* promotes some critical warning messages to use this wrapper
* replaces the combination of printk + dump_stack with DCCP_BUG
* is meant to aid in future code restructuring
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
net/dccp/ackvec.c | 5 +----
net/dccp/ccids/ccid3.c | 21 +++++++--------------
net/dccp/ccids/lib/loss_interval.c | 4 ++--
net/dccp/minisocks.c | 4 +---
net/dccp/options.c | 5 ++---
net/dccp/output.c | 16 +++++-----------
net/dccp/proto.c | 5 ++---
7 files changed, 20 insertions(+), 40 deletions(-)
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -491,9 +491,6 @@ u64 dccp_ackvec_parse(struct sock *sk, u
sk, ackno, len, value);
}
-static char dccp_ackvec_slab_msg[] __initdata =
- KERN_CRIT "DCCP: Unable to create ack vectors slab caches\n";
-
int __init dccp_ackvec_init(void)
{
dccp_ackvec_slab = kmem_cache_create("dccp_ackvec",
@@ -515,7 +512,7 @@ out_destroy_slab:
kmem_cache_destroy(dccp_ackvec_slab);
dccp_ackvec_slab = NULL;
out_err:
- printk(dccp_ackvec_slab_msg);
+ DCCP_CRIT("Unable to create Ack Vector slab cache");
return -ENOBUFS;
}
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -393,9 +393,8 @@ static void ccid3_hc_tx_packet_sent(stru
case TFRC_SSTATE_NO_SENT:
/* if first wasn't pure ack */
if (len != 0)
- printk(KERN_CRIT "%s: %s, First packet sent is noted "
- "as a data packet\n",
- __FUNCTION__, dccp_role(sk));
+ DCCP_CRIT("%s, First packet sent is noted "
+ "as a data packet", dccp_role(sk));
return;
case TFRC_SSTATE_NO_FBACK:
case TFRC_SSTATE_FBACK:
@@ -829,8 +828,7 @@ static u32 ccid3_hc_rx_calc_first_li(str
}
found:
if (!tail) {
- LIMIT_NETDEBUG(KERN_WARNING "%s: tail is null\n",
- __FUNCTION__);
+ DCCP_CRIT("tail is null");
return ~0;
}
rtt = timeval_delta(&tstamp, &tail->dccphrx_tstamp) * 4 / interval;
@@ -851,9 +849,7 @@ found:
tmp2 = (u32)tmp1;
if (!tmp2) {
- LIMIT_NETDEBUG(KERN_WARNING "tmp2 = 0 "
- "%s: x_recv = %u, rtt =%u\n",
- __FUNCTION__, x_recv, rtt);
+ DCCP_CRIT("tmp2 = 0, x_recv = %u, rtt =%u", x_recv, rtt);
return ~0;
}
@@ -899,8 +895,7 @@ static void ccid3_hc_rx_update_li(struct
entry = dccp_li_hist_entry_new(ccid3_li_hist, SLAB_ATOMIC);
if (entry == NULL) {
- printk(KERN_CRIT "%s: out of memory\n",__FUNCTION__);
- dump_stack();
+ DCCP_BUG("out of memory - can not allocate entry");
return;
}
@@ -1076,10 +1071,8 @@ static void ccid3_hc_rx_packet_recv(stru
/* Scaling up by 1000000 as fixed decimal */
if (i_mean != 0)
hcrx->ccid3hcrx_p = 1000000 / i_mean;
- } else {
- printk(KERN_CRIT "%s: empty loss hist\n",__FUNCTION__);
- dump_stack();
- }
+ } else
+ DCCP_BUG("empty loss history");
if (hcrx->ccid3hcrx_p > p_prev) {
ccid3_hc_rx_send_feedback(sk);
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -239,9 +239,8 @@ int dccp_parse_options(struct sock *sk,
}
break;
default:
- pr_info("DCCP(%p): option %d(len=%d) not "
- "implemented, ignoring\n",
- sk, opt, len);
+ DCCP_CRIT("DCCP(%p): option %d(len=%d) not "
+ "implemented, ignoring", sk, opt, len);
break;
}
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -1033,8 +1033,7 @@ static int __init dccp_init(void)
} while (!dccp_hashinfo.ehash && --ehash_order > 0);
if (!dccp_hashinfo.ehash) {
- printk(KERN_CRIT "Failed to allocate DCCP "
- "established hash table\n");
+ DCCP_CRIT("Failed to allocate DCCP established hash table");
goto out_free_bind_bucket_cachep;
}
@@ -1056,7 +1055,7 @@ static int __init dccp_init(void)
} while (!dccp_hashinfo.bhash && --bhash_order >= 0);
if (!dccp_hashinfo.bhash) {
- printk(KERN_CRIT "Failed to allocate DCCP bind hash table\n");
+ DCCP_CRIT("Failed to allocate DCCP bind hash table");
goto out_free_dccp_ehash;
}
--- a/net/dccp/ccids/lib/loss_interval.c
+++ b/net/dccp/ccids/lib/loss_interval.c
@@ -13,7 +13,7 @@
#include <linux/module.h>
#include <net/sock.h>
-
+#include "../../dccp.h"
#include "loss_interval.h"
struct dccp_li_hist *dccp_li_hist_new(const char *name)
@@ -128,7 +128,7 @@ int dccp_li_hist_interval_new(struct dcc
entry = dccp_li_hist_entry_new(hist, SLAB_ATOMIC);
if (entry == NULL) {
dccp_li_hist_purge(hist, list);
- dump_stack();
+ DCCP_BUG("loss interval list entry is NULL");
return 0;
}
entry->dccplih_interval = ~0;
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -289,9 +289,7 @@ EXPORT_SYMBOL_GPL(dccp_child_process);
void dccp_reqsk_send_ack(struct sk_buff *skb, struct request_sock *rsk)
{
- pr_info(KERN_WARNING "DCCP: ACK packets are never sent in "
- "LISTEN/RESPOND state\n");
- dump_stack();
+ DCCP_BUG("DCCP-ACK packets are never sent in LISTEN/RESPOND state");
}
EXPORT_SYMBOL_GPL(dccp_reqsk_send_ack);
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -257,11 +257,8 @@ void dccp_write_xmit(struct sock *sk, in
err = dccp_wait_for_ccid(sk, skb, &timeo);
timeo = DCCP_XMIT_TIMEO;
}
- if (err) {
- printk(KERN_CRIT "%s:err at dccp_wait_for_ccid"
- " %d\n", __FUNCTION__, err);
- dump_stack();
- }
+ if (err)
+ DCCP_BUG("err=%d after dccp_wait_for_ccid", err);
}
skb_dequeue(&sk->sk_write_queue);
@@ -283,12 +280,9 @@ void dccp_write_xmit(struct sock *sk, in
err = dccp_transmit_skb(sk, skb);
ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
- if (err) {
- printk(KERN_CRIT "%s:err from "
- "ccid_hc_tx_packet_sent %d\n",
- __FUNCTION__, err);
- dump_stack();
- }
+ if (err)
+ DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
+ err);
} else
kfree(skb);
}
-
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