From ba7a46f16dd29f93303daeb1fee8af316c5a07f4 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 11 Nov 2014 10:59:17 -0800 Subject: [PATCH] net: Convert LIMIT_NETDEBUG to net_dbg_ratelimited Use the more common dynamic_debug capable net_dbg_ratelimited and remove the LIMIT_NETDEBUG macro. All messages are still ratelimited. Some KERN_ uses are changed to KERN_DEBUG. This may have some negative impact on messages that were emitted at KERN_INFO that are not not enabled at all unless DEBUG is defined or dynamic_debug is enabled. Even so, these messages are now _not_ emitted by default. This also eliminates the use of the net_msg_warn sysctl "/proc/sys/net/core/warnings". For backward compatibility, the sysctl is not removed, but it has no function. The extern declaration of net_msg_warn is removed from sock.h and made static in net/core/sysctl_net_core.c Miscellanea: o Update the sysctl documentation o Remove the embedded uses of pr_fmt o Coalesce format fragments o Realign arguments Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- Documentation/sysctl/net.txt | 12 ++++++++---- include/net/sock.h | 7 ------- include/net/udplite.h | 6 +++--- net/core/sysctl_net_core.c | 2 ++ net/core/utils.c | 3 --- net/ipv4/icmp.c | 8 ++++---- net/ipv4/inet_fragment.c | 2 +- net/ipv4/ip_fragment.c | 3 +-- net/ipv4/tcp_input.c | 8 ++++---- net/ipv4/tcp_timer.c | 18 ++++++++++-------- net/ipv4/udp.c | 30 +++++++++++++++--------------- net/ipv6/addrconf.c | 6 ++---- net/ipv6/ah6.c | 7 +++---- net/ipv6/datagram.c | 4 ++-- net/ipv6/esp6.c | 4 ++-- net/ipv6/exthdrs.c | 18 +++++++++--------- net/ipv6/icmp.c | 15 +++++++-------- net/ipv6/mip6.c | 11 ++++++----- net/ipv6/netfilter.c | 2 +- net/ipv6/udp.c | 31 +++++++++++++------------------ net/phonet/af_phonet.c | 9 +++++---- net/phonet/pep-gprs.c | 3 +-- net/phonet/pep.c | 12 ++++++------ 23 files changed, 105 insertions(+), 116 deletions(-) diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt index 04892b821157..e26c607468a6 100644 --- a/Documentation/sysctl/net.txt +++ b/Documentation/sysctl/net.txt @@ -120,10 +120,14 @@ seconds. warnings -------- -This controls console messages from the networking stack that can occur because -of problems on the network like duplicate address or bad checksums. Normally, -this should be enabled, but if the problem persists the messages can be -disabled. +This sysctl is now unused. + +This was used to control console messages from the networking stack that +occur because of problems on the network like duplicate address or bad +checksums. + +These messages are now emitted at KERN_DEBUG and can generally be enabled +and controlled by the dynamic_debug facility. netdev_budget ------------- diff --git a/include/net/sock.h b/include/net/sock.h index 7789b59c0c40..83a669f83bae 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2288,13 +2288,6 @@ bool sk_ns_capable(const struct sock *sk, bool sk_capable(const struct sock *sk, int cap); bool sk_net_capable(const struct sock *sk, int cap); -/* - * Enable debug/info messages - */ -extern int net_msg_warn; -#define LIMIT_NETDEBUG(fmt, args...) \ - do { if (net_msg_warn && net_ratelimit()) printk(fmt,##args); } while(0) - extern __u32 sysctl_wmem_max; extern __u32 sysctl_rmem_max; diff --git a/include/net/udplite.h b/include/net/udplite.h index 2caadabcd07b..9a28a5179400 100644 --- a/include/net/udplite.h +++ b/include/net/udplite.h @@ -40,7 +40,7 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh) * checksum. UDP-Lite (like IPv6) mandates checksums, hence packets * with a zero checksum field are illegal. */ if (uh->check == 0) { - LIMIT_NETDEBUG(KERN_DEBUG "UDPLite: zeroed checksum field\n"); + net_dbg_ratelimited("UDPLite: zeroed checksum field\n"); return 1; } @@ -52,8 +52,8 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh) /* * Coverage length violates RFC 3828: log and discard silently. */ - LIMIT_NETDEBUG(KERN_DEBUG "UDPLite: bad csum coverage %d/%d\n", - cscov, skb->len); + net_dbg_ratelimited("UDPLite: bad csum coverage %d/%d\n", + cscov, skb->len); return 1; } else if (cscov < skb->len) { diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index cf9cd13509a7..f93f092fe226 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -26,6 +26,8 @@ static int zero = 0; static int one = 1; static int ushort_max = USHRT_MAX; +static int net_msg_warn; /* Unused, but still a sysctl */ + #ifdef CONFIG_RPS static int rps_sock_flow_sysctl(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) diff --git a/net/core/utils.c b/net/core/utils.c index efc76dd9dcd1..7b803884c162 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -33,9 +33,6 @@ #include #include -int net_msg_warn __read_mostly = 1; -EXPORT_SYMBOL(net_msg_warn); - DEFINE_RATELIMIT_STATE(net_ratelimit_state, 5 * HZ, 10); /* * All net warning printk()s should be guarded by this function. diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 5882f584910e..36b7bfa609d6 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -784,8 +784,8 @@ static void icmp_unreach(struct sk_buff *skb) */ switch (net->ipv4.sysctl_ip_no_pmtu_disc) { default: - LIMIT_NETDEBUG(KERN_INFO pr_fmt("%pI4: fragmentation needed and DF set\n"), - &iph->daddr); + net_dbg_ratelimited("%pI4: fragmentation needed and DF set\n", + &iph->daddr); break; case 2: goto out; @@ -798,8 +798,8 @@ static void icmp_unreach(struct sk_buff *skb) } break; case ICMP_SR_FAILED: - LIMIT_NETDEBUG(KERN_INFO pr_fmt("%pI4: Source Route Failed\n"), - &iph->daddr); + net_dbg_ratelimited("%pI4: Source Route Failed\n", + &iph->daddr); break; default: break; diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 19419b60cb37..e7920352646a 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -458,6 +458,6 @@ void inet_frag_maybe_warn_overflow(struct inet_frag_queue *q, ". Dropping fragment.\n"; if (PTR_ERR(q) == -ENOBUFS) - LIMIT_NETDEBUG(KERN_WARNING "%s%s", prefix, msg); + net_dbg_ratelimited("%s%s", prefix, msg); } EXPORT_SYMBOL(inet_frag_maybe_warn_overflow); diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 4d964dadd655..e5b6d0ddcb58 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -618,8 +618,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev, return 0; out_nomem: - LIMIT_NETDEBUG(KERN_ERR pr_fmt("queue_glue: no memory for gluing queue %p\n"), - qp); + net_dbg_ratelimited("queue_glue: no memory for gluing queue %p\n", qp); err = -ENOMEM; goto out_fail; out_oversize: diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 5f979c7f5135..d91436ba17ea 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5854,12 +5854,12 @@ static inline void pr_drop_req(struct request_sock *req, __u16 port, int family) struct inet_request_sock *ireq = inet_rsk(req); if (family == AF_INET) - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("drop open request from %pI4/%u\n"), - &ireq->ir_rmt_addr, port); + net_dbg_ratelimited("drop open request from %pI4/%u\n", + &ireq->ir_rmt_addr, port); #if IS_ENABLED(CONFIG_IPV6) else if (family == AF_INET6) - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("drop open request from %pI6/%u\n"), - &ireq->ir_v6_rmt_addr, port); + net_dbg_ratelimited("drop open request from %pI6/%u\n", + &ireq->ir_v6_rmt_addr, port); #endif } diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 9b21ae8b2e31..1829c7fbc77e 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -374,17 +374,19 @@ void tcp_retransmit_timer(struct sock *sk) */ struct inet_sock *inet = inet_sk(sk); if (sk->sk_family == AF_INET) { - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("Peer %pI4:%u/%u unexpectedly shrunk window %u:%u (repaired)\n"), - &inet->inet_daddr, - ntohs(inet->inet_dport), inet->inet_num, - tp->snd_una, tp->snd_nxt); + net_dbg_ratelimited("Peer %pI4:%u/%u unexpectedly shrunk window %u:%u (repaired)\n", + &inet->inet_daddr, + ntohs(inet->inet_dport), + inet->inet_num, + tp->snd_una, tp->snd_nxt); } #if IS_ENABLED(CONFIG_IPV6) else if (sk->sk_family == AF_INET6) { - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n"), - &sk->sk_v6_daddr, - ntohs(inet->inet_dport), inet->inet_num, - tp->snd_una, tp->snd_nxt); + net_dbg_ratelimited("Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n", + &sk->sk_v6_daddr, + ntohs(inet->inet_dport), + inet->inet_num, + tp->snd_una, tp->snd_nxt); } #endif if (tcp_time_stamp - tp->rcv_tstamp > TCP_RTO_MAX) { diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index d13751685f44..1b6e9d5fadef 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1051,7 +1051,7 @@ back_from_confirm: /* ... which is an evident application bug. --ANK */ release_sock(sk); - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("cork app bug 2\n")); + net_dbg_ratelimited("cork app bug 2\n"); err = -EINVAL; goto out; } @@ -1133,7 +1133,7 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset, if (unlikely(!up->pending)) { release_sock(sk); - LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("udp cork app bug 3\n")); + net_dbg_ratelimited("udp cork app bug 3\n"); return -EINVAL; } @@ -1547,8 +1547,8 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) * provided by the application." */ if (up->pcrlen == 0) { /* full coverage was set */ - LIMIT_NETDEBUG(KERN_WARNING "UDPLite: partial coverage %d while full coverage %d requested\n", - UDP_SKB_CB(skb)->cscov, skb->len); + net_dbg_ratelimited("UDPLite: partial coverage %d while full coverage %d requested\n", + UDP_SKB_CB(skb)->cscov, skb->len); goto drop; } /* The next case involves violating the min. coverage requested @@ -1558,8 +1558,8 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) * Therefore the above ...()->partial_cov statement is essential. */ if (UDP_SKB_CB(skb)->cscov < up->pcrlen) { - LIMIT_NETDEBUG(KERN_WARNING "UDPLite: coverage %d too small, need min %d\n", - UDP_SKB_CB(skb)->cscov, up->pcrlen); + net_dbg_ratelimited("UDPLite: coverage %d too small, need min %d\n", + UDP_SKB_CB(skb)->cscov, up->pcrlen); goto drop; } } @@ -1828,11 +1828,11 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, return 0; short_packet: - LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %pI4:%u %d/%d to %pI4:%u\n", - proto == IPPROTO_UDPLITE ? "Lite" : "", - &saddr, ntohs(uh->source), - ulen, skb->len, - &daddr, ntohs(uh->dest)); + net_dbg_ratelimited("UDP%s: short packet: From %pI4:%u %d/%d to %pI4:%u\n", + proto == IPPROTO_UDPLITE ? "Lite" : "", + &saddr, ntohs(uh->source), + ulen, skb->len, + &daddr, ntohs(uh->dest)); goto drop; csum_error: @@ -1840,10 +1840,10 @@ csum_error: * RFC1122: OK. Discards the bad packet silently (as far as * the network is concerned, anyway) as per 4.1.3.4 (MUST). */ - LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %pI4:%u to %pI4:%u ulen %d\n", - proto == IPPROTO_UDPLITE ? "Lite" : "", - &saddr, ntohs(uh->source), &daddr, ntohs(uh->dest), - ulen); + net_dbg_ratelimited("UDP%s: bad checksum. From %pI4:%u to %pI4:%u ulen %d\n", + proto == IPPROTO_UDPLITE ? "Lite" : "", + &saddr, ntohs(uh->source), &daddr, ntohs(uh->dest), + ulen); UDP_INC_STATS_BH(net, UDP_MIB_CSUMERRORS, proto == IPPROTO_UDPLITE); drop: UDP_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE); diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 06e897832a7a..251fcb48b216 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1411,10 +1411,8 @@ int ipv6_dev_get_saddr(struct net *net, const struct net_device *dst_dev, if (unlikely(score->addr_type == IPV6_ADDR_ANY || score->addr_type & IPV6_ADDR_MULTICAST)) { - LIMIT_NETDEBUG(KERN_DEBUG - "ADDRCONF: unspecified / multicast address " - "assigned as unicast address on %s", - dev->name); + net_dbg_ratelimited("ADDRCONF: unspecified / multicast address assigned as unicast address on %s", + dev->name); continue; } diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 6d16eb0e0c7f..8ab1989198f6 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -272,10 +272,9 @@ static int ipv6_clear_mutable_options(struct ipv6hdr *iph, int len, int dir) ipv6_rearrange_destopt(iph, exthdr.opth); case NEXTHDR_HOP: if (!zero_out_mutable_opts(exthdr.opth)) { - LIMIT_NETDEBUG( - KERN_WARNING "overrun %sopts\n", - nexthdr == NEXTHDR_HOP ? - "hop" : "dest"); + net_dbg_ratelimited("overrun %sopts\n", + nexthdr == NEXTHDR_HOP ? + "hop" : "dest"); return -EINVAL; } break; diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index 5c6996e44b14..cc1139687fd7 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -893,8 +893,8 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, break; } default: - LIMIT_NETDEBUG(KERN_DEBUG "invalid cmsg type: %d\n", - cmsg->cmsg_type); + net_dbg_ratelimited("invalid cmsg type: %d\n", + cmsg->cmsg_type); err = -EINVAL; goto exit_f; } diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index d21d7b22eebc..d2c2d749b6db 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -286,8 +286,8 @@ static int esp_input_done2(struct sk_buff *skb, int err) err = -EINVAL; padlen = nexthdr[0]; if (padlen + 2 + alen >= elen) { - LIMIT_NETDEBUG(KERN_WARNING "ipsec esp packet is garbage " - "padlen=%d, elen=%d\n", padlen + 2, elen - alen); + net_dbg_ratelimited("ipsec esp packet is garbage padlen=%d, elen=%d\n", + padlen + 2, elen - alen); goto out; } diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 601d896f22d0..a7bbbe45570b 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -184,7 +184,7 @@ static bool ipv6_dest_hao(struct sk_buff *skb, int optoff) int ret; if (opt->dsthao) { - LIMIT_NETDEBUG(KERN_DEBUG "hao duplicated\n"); + net_dbg_ratelimited("hao duplicated\n"); goto discard; } opt->dsthao = opt->dst1; @@ -193,14 +193,14 @@ static bool ipv6_dest_hao(struct sk_buff *skb, int optoff) hao = (struct ipv6_destopt_hao *)(skb_network_header(skb) + optoff); if (hao->length != 16) { - LIMIT_NETDEBUG( - KERN_DEBUG "hao invalid option length = %d\n", hao->length); + net_dbg_ratelimited("hao invalid option length = %d\n", + hao->length); goto discard; } if (!(ipv6_addr_type(&hao->addr) & IPV6_ADDR_UNICAST)) { - LIMIT_NETDEBUG( - KERN_DEBUG "hao is not an unicast addr: %pI6\n", &hao->addr); + net_dbg_ratelimited("hao is not an unicast addr: %pI6\n", + &hao->addr); goto discard; } @@ -551,8 +551,8 @@ static bool ipv6_hop_ra(struct sk_buff *skb, int optoff) memcpy(&IP6CB(skb)->ra, nh + optoff + 2, sizeof(IP6CB(skb)->ra)); return true; } - LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_ra: wrong RA length %d\n", - nh[optoff + 1]); + net_dbg_ratelimited("ipv6_hop_ra: wrong RA length %d\n", + nh[optoff + 1]); kfree_skb(skb); return false; } @@ -566,8 +566,8 @@ static bool ipv6_hop_jumbo(struct sk_buff *skb, int optoff) u32 pkt_len; if (nh[optoff + 1] != 4 || (optoff & 3) != 2) { - LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n", - nh[optoff+1]); + net_dbg_ratelimited("ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n", + nh[optoff+1]); IP6_INC_STATS_BH(net, ipv6_skb_idev(skb), IPSTATS_MIB_INHDRERRORS); goto drop; diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 62c1037d9e83..092934032077 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -338,7 +338,7 @@ static struct dst_entry *icmpv6_route_lookup(struct net *net, * anycast. */ if (((struct rt6_info *)dst)->rt6i_flags & RTF_ANYCAST) { - LIMIT_NETDEBUG(KERN_DEBUG "icmp6_send: acast source\n"); + net_dbg_ratelimited("icmp6_send: acast source\n"); dst_release(dst); return ERR_PTR(-EINVAL); } @@ -452,7 +452,7 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) * and anycast addresses will be checked later. */ if ((addr_type == IPV6_ADDR_ANY) || (addr_type & IPV6_ADDR_MULTICAST)) { - LIMIT_NETDEBUG(KERN_DEBUG "icmp6_send: addr_any/mcast source\n"); + net_dbg_ratelimited("icmp6_send: addr_any/mcast source\n"); return; } @@ -460,7 +460,7 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) * Never answer to a ICMP packet. */ if (is_ineligible(skb)) { - LIMIT_NETDEBUG(KERN_DEBUG "icmp6_send: no reply to icmp error\n"); + net_dbg_ratelimited("icmp6_send: no reply to icmp error\n"); return; } @@ -509,7 +509,7 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) len = skb->len - msg.offset; len = min_t(unsigned int, len, IPV6_MIN_MTU - sizeof(struct ipv6hdr) - sizeof(struct icmp6hdr)); if (len < 0) { - LIMIT_NETDEBUG(KERN_DEBUG "icmp: len problem\n"); + net_dbg_ratelimited("icmp: len problem\n"); goto out_dst_release; } @@ -706,9 +706,8 @@ static int icmpv6_rcv(struct sk_buff *skb) daddr = &ipv6_hdr(skb)->daddr; if (skb_checksum_validate(skb, IPPROTO_ICMPV6, ip6_compute_pseudo)) { - LIMIT_NETDEBUG(KERN_DEBUG - "ICMPv6 checksum failed [%pI6c > %pI6c]\n", - saddr, daddr); + net_dbg_ratelimited("ICMPv6 checksum failed [%pI6c > %pI6c]\n", + saddr, daddr); goto csum_error; } @@ -781,7 +780,7 @@ static int icmpv6_rcv(struct sk_buff *skb) if (type & ICMPV6_INFOMSG_MASK) break; - LIMIT_NETDEBUG(KERN_DEBUG "icmpv6: msg of unknown type\n"); + net_dbg_ratelimited("icmpv6: msg of unknown type\n"); /* * error of unknown type. diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c index f61429d391d3..b9779d441b12 100644 --- a/net/ipv6/mip6.c +++ b/net/ipv6/mip6.c @@ -97,16 +97,17 @@ static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb) return -1; if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) { - LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n", - mh->ip6mh_hdrlen, mip6_mh_len(mh->ip6mh_type)); + net_dbg_ratelimited("mip6: MH message too short: %d vs >=%d\n", + mh->ip6mh_hdrlen, + mip6_mh_len(mh->ip6mh_type)); mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_hdrlen) + skb_network_header_len(skb)); return -1; } if (mh->ip6mh_proto != IPPROTO_NONE) { - LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n", - mh->ip6mh_proto); + net_dbg_ratelimited("mip6: MH invalid payload proto = %d\n", + mh->ip6mh_proto); mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_proto) + skb_network_header_len(skb)); return -1; @@ -288,7 +289,7 @@ static int mip6_destopt_offset(struct xfrm_state *x, struct sk_buff *skb, * XXX: packet if HAO exists. */ if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0) { - LIMIT_NETDEBUG(KERN_WARNING "mip6: hao exists already, override\n"); + net_dbg_ratelimited("mip6: hao exists already, override\n"); return offset; } diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c index d38e6a8d8b9f..398377a9d018 100644 --- a/net/ipv6/netfilter.c +++ b/net/ipv6/netfilter.c @@ -36,7 +36,7 @@ int ip6_route_me_harder(struct sk_buff *skb) err = dst->error; if (err) { IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); - LIMIT_NETDEBUG(KERN_DEBUG "ip6_route_me_harder: No more route.\n"); + net_dbg_ratelimited("ip6_route_me_harder: No more route\n"); dst_release(dst); return err; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index d1fe36274906..0ba3de4f2368 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -660,15 +660,13 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) if ((is_udplite & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) { if (up->pcrlen == 0) { /* full coverage was set */ - LIMIT_NETDEBUG(KERN_WARNING "UDPLITE6: partial coverage" - " %d while full coverage %d requested\n", - UDP_SKB_CB(skb)->cscov, skb->len); + net_dbg_ratelimited("UDPLITE6: partial coverage %d while full coverage %d requested\n", + UDP_SKB_CB(skb)->cscov, skb->len); goto drop; } if (UDP_SKB_CB(skb)->cscov < up->pcrlen) { - LIMIT_NETDEBUG(KERN_WARNING "UDPLITE6: coverage %d " - "too small, need min %d\n", - UDP_SKB_CB(skb)->cscov, up->pcrlen); + net_dbg_ratelimited("UDPLITE6: coverage %d too small, need min %d\n", + UDP_SKB_CB(skb)->cscov, up->pcrlen); goto drop; } } @@ -761,9 +759,9 @@ static void udp6_csum_zero_error(struct sk_buff *skb) /* RFC 2460 section 8.1 says that we SHOULD log * this error. Well, it is reasonable. */ - LIMIT_NETDEBUG(KERN_INFO "IPv6: udp checksum is 0 for [%pI6c]:%u->[%pI6c]:%u\n", - &ipv6_hdr(skb)->saddr, ntohs(udp_hdr(skb)->source), - &ipv6_hdr(skb)->daddr, ntohs(udp_hdr(skb)->dest)); + net_dbg_ratelimited("IPv6: udp checksum is 0 for [%pI6c]:%u->[%pI6c]:%u\n", + &ipv6_hdr(skb)->saddr, ntohs(udp_hdr(skb)->source), + &ipv6_hdr(skb)->daddr, ntohs(udp_hdr(skb)->dest)); } /* @@ -931,14 +929,11 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, return 0; short_packet: - LIMIT_NETDEBUG(KERN_DEBUG "UDP%sv6: short packet: From [%pI6c]:%u %d/%d to [%pI6c]:%u\n", - proto == IPPROTO_UDPLITE ? "-Lite" : "", - saddr, - ntohs(uh->source), - ulen, - skb->len, - daddr, - ntohs(uh->dest)); + net_dbg_ratelimited("UDP%sv6: short packet: From [%pI6c]:%u %d/%d to [%pI6c]:%u\n", + proto == IPPROTO_UDPLITE ? "-Lite" : "", + saddr, ntohs(uh->source), + ulen, skb->len, + daddr, ntohs(uh->dest)); goto discard; csum_error: UDP6_INC_STATS_BH(net, UDP_MIB_CSUMERRORS, proto == IPPROTO_UDPLITE); @@ -1290,7 +1285,7 @@ back_from_confirm: /* ... which is an evident application bug. --ANK */ release_sock(sk); - LIMIT_NETDEBUG(KERN_DEBUG "udp cork app bug 2\n"); + net_dbg_ratelimited("udp cork app bug 2\n"); err = -EINVAL; goto out; } diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 5a940dbd74a3..32ab87d34828 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -426,16 +426,17 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev, out_dev = phonet_route_output(net, pn_sockaddr_get_addr(&sa)); if (!out_dev) { - LIMIT_NETDEBUG(KERN_WARNING"No Phonet route to %02X\n", - pn_sockaddr_get_addr(&sa)); + net_dbg_ratelimited("No Phonet route to %02X\n", + pn_sockaddr_get_addr(&sa)); goto out; } __skb_push(skb, sizeof(struct phonethdr)); skb->dev = out_dev; if (out_dev == dev) { - LIMIT_NETDEBUG(KERN_ERR"Phonet loop to %02X on %s\n", - pn_sockaddr_get_addr(&sa), dev->name); + net_dbg_ratelimited("Phonet loop to %02X on %s\n", + pn_sockaddr_get_addr(&sa), + dev->name); goto out_dev; } /* Some drivers (e.g. TUN) do not allocate HW header space */ diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c index e9a83a637185..fa8237fdc57b 100644 --- a/net/phonet/pep-gprs.c +++ b/net/phonet/pep-gprs.c @@ -203,8 +203,7 @@ static netdev_tx_t gprs_xmit(struct sk_buff *skb, struct net_device *dev) len = skb->len; err = pep_write(sk, skb); if (err) { - LIMIT_NETDEBUG(KERN_WARNING"%s: TX error (%d)\n", - dev->name, err); + net_dbg_ratelimited("%s: TX error (%d)\n", dev->name, err); dev->stats.tx_aborted_errors++; dev->stats.tx_errors++; } else { diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 44b2123e22b8..9cd069dfaf65 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -272,8 +272,8 @@ static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb) hdr = pnp_hdr(skb); if (hdr->data[0] != PN_PEP_TYPE_COMMON) { - LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP type: %u\n", - (unsigned int)hdr->data[0]); + net_dbg_ratelimited("Phonet unknown PEP type: %u\n", + (unsigned int)hdr->data[0]); return -EOPNOTSUPP; } @@ -304,8 +304,8 @@ static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb) break; default: - LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP indication: %u\n", - (unsigned int)hdr->data[1]); + net_dbg_ratelimited("Phonet unknown PEP indication: %u\n", + (unsigned int)hdr->data[1]); return -EOPNOTSUPP; } if (wake) @@ -451,8 +451,8 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb) break; default: - LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP message: %u\n", - hdr->message_id); + net_dbg_ratelimited("Phonet unknown PEP message: %u\n", + hdr->message_id); err = -EINVAL; } out: -- 2.20.1