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Message-ID: <20110629111109.GA1613@hmsreliant.think-freely.org>
Date: Wed, 29 Jun 2011 07:11:10 -0400
From: Neil Horman <nhorman@...driver.com>
To: Joe Perches <joe@...ches.com>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/core: Convert to current logging forms
On Tue, Jun 28, 2011 at 12:40:10PM -0700, Joe Perches wrote:
> Use pr_fmt, pr_<level>, and netdev_<level> as appropriate.
>
> Coalesce long formats.
>
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
> net/core/dev.c | 121 +++++++++++++++++++---------------------------
> net/core/drop_monitor.c | 10 ++--
> net/core/neighbour.c | 15 +++---
> net/core/net_namespace.c | 6 ++-
> net/core/netpoll.c | 60 +++++++++++-----------
> net/core/pktgen.c | 27 +++++-----
> net/core/rtnetlink.c | 9 ++--
> net/core/skbuff.c | 24 ++++------
> net/core/sock.c | 21 ++++----
> 9 files changed, 136 insertions(+), 157 deletions(-)
>
> diff --git a/net/core/dev.c b/net/core/dev.c
> index 6b6ef14..3401227 100644
> --- a/net/core/dev.c
> +++ b/net/core/dev.c
> @@ -72,6 +72,8 @@
> * - netif_rx() feedback
> */
>
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> #include <asm/uaccess.h>
> #include <asm/system.h>
> #include <linux/bitops.h>
> @@ -433,7 +435,7 @@ void __dev_remove_pack(struct packet_type *pt)
> }
> }
>
> - printk(KERN_WARNING "dev_remove_pack: %p not found.\n", pt);
> + pr_warn("dev_remove_pack: %p not found\n", pt);
> out:
> spin_unlock(&ptype_lock);
> }
> @@ -1026,9 +1028,8 @@ rollback:
> memcpy(dev->name, oldname, IFNAMSIZ);
> goto rollback;
> } else {
> - printk(KERN_ERR
> - "%s: name change rollback failed: %d.\n",
> - dev->name, ret);
> + netdev_err(dev, "name change rollback failed: %d\n",
> + ret);
> }
> }
>
> @@ -1126,9 +1127,10 @@ void dev_load(struct net *net, const char *name)
> no_module = request_module("netdev-%s", name);
> if (no_module && capable(CAP_SYS_MODULE)) {
> if (!request_module("%s", name))
> - pr_err("Loading kernel module for a network device "
> -"with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s "
> -"instead\n", name);
> + pr_err(
> +"Loading kernel module for a network device with CAP_SYS_MODULE (deprecated)\n"
> +"Use CAP_NET_ADMIN and alias netdev-%s instead\n",
> + name);
> }
> }
> EXPORT_SYMBOL(dev_load);
> @@ -1569,10 +1571,8 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
> if (skb_network_header(skb2) < skb2->data ||
> skb2->network_header > skb2->tail) {
> if (net_ratelimit())
> - printk(KERN_CRIT "protocol %04x is "
> - "buggy, dev %s\n",
> - ntohs(skb2->protocol),
> - dev->name);
> + netdev_crit(dev, "protocol %04x is buggy\n",
> + ntohs(skb2->protocol));
> skb_reset_network_header(skb2);
> }
>
> @@ -1605,9 +1605,7 @@ static void netif_setup_tc(struct net_device *dev, unsigned int txq)
>
> /* If TC0 is invalidated disable TC mapping */
> if (tc->offset + tc->count > txq) {
> - pr_warning("Number of in use tx queues changed "
> - "invalidating tc mappings. Priority "
> - "traffic classification disabled!\n");
> + netdev_warn(dev, "Number of in use tx queues changed invalidating tc mappings. Priority traffic classification disabled!\n");
> dev->num_tc = 0;
> return;
> }
> @@ -1618,11 +1616,8 @@ static void netif_setup_tc(struct net_device *dev, unsigned int txq)
>
> tc = &dev->tc_to_txq[q];
> if (tc->offset + tc->count > txq) {
> - pr_warning("Number of in use tx queues "
> - "changed. Priority %i to tc "
> - "mapping %i is no longer valid "
> - "setting map to 0\n",
> - i, q);
> + netdev_warn(dev, "Number of in use tx queues changed. Priority %i to tc mapping %i is no longer valid. Setting map to 0.\n",
> + i, q);
> netdev_set_prio_tc_map(dev, i, 0);
> }
> }
> @@ -1919,8 +1914,7 @@ EXPORT_SYMBOL(skb_gso_segment);
> void netdev_rx_csum_fault(struct net_device *dev)
> {
> if (net_ratelimit()) {
> - printk(KERN_ERR "%s: hw csum failure.\n",
> - dev ? dev->name : "<unknown>");
> + netdev_err(dev, "hw csum failure\n");
> dump_stack();
> }
> }
> @@ -2233,9 +2227,8 @@ static inline u16 dev_cap_txqueue(struct net_device *dev, u16 queue_index)
> {
> if (unlikely(queue_index >= dev->real_num_tx_queues)) {
> if (net_ratelimit()) {
> - pr_warning("%s selects TX queue %d, but "
> - "real number of TX queues is %d\n",
> - dev->name, queue_index, dev->real_num_tx_queues);
> + netdev_warn(dev, "selects TX queue %d, but real number of TX queues is %d\n",
> + queue_index, dev->real_num_tx_queues);
> }
> return 0;
> }
> @@ -2465,16 +2458,14 @@ int dev_queue_xmit(struct sk_buff *skb)
> }
> HARD_TX_UNLOCK(dev, txq);
> if (net_ratelimit())
> - printk(KERN_CRIT "Virtual device %s asks to "
> - "queue packet!\n", dev->name);
> + netdev_crit(dev, "Virtual device asks to queue packet!\n");
> } else {
> /* Recursion is detected! It is possible,
> * unfortunately
> */
> recursion_alert:
> if (net_ratelimit())
> - printk(KERN_CRIT "Dead loop on virtual device "
> - "%s, fix it urgently!\n", dev->name);
> + netdev_crit(dev, "Dead loop on virtual device, fix it urgently!\n");
> }
> }
>
> @@ -2996,8 +2987,8 @@ static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq)
>
> if (unlikely(MAX_RED_LOOP < ttl++)) {
> if (net_ratelimit())
> - pr_warning( "Redir loop detected Dropping packet (%d->%d)\n",
> - skb->skb_iif, dev->ifindex);
> + netdev_warn(dev, "Redir loop detected - Dropping packet (%d->%d)\n",
> + skb->skb_iif, dev->ifindex);
> return TC_ACT_SHOT;
> }
>
> @@ -4366,16 +4357,13 @@ static int __dev_set_promiscuity(struct net_device *dev, int inc)
> dev->flags &= ~IFF_PROMISC;
> else {
> dev->promiscuity -= inc;
> - printk(KERN_WARNING "%s: promiscuity touches roof, "
> - "set promiscuity failed, promiscuity feature "
> - "of device might be broken.\n", dev->name);
> + netdev_warn(dev, "promiscuity touches roof, set promiscuity failed, promiscuity feature of device might be broken\n");
> return -EOVERFLOW;
> }
> }
> if (dev->flags != old_flags) {
> - printk(KERN_INFO "device %s %s promiscuous mode\n",
> - dev->name, (dev->flags & IFF_PROMISC) ? "entered" :
> - "left");
> + netdev_info(dev, "%s promiscuous mode\n",
> + (dev->flags & IFF_PROMISC) ? "entered" : "left");
> if (audit_enabled) {
> current_uid_gid(&uid, &gid);
> audit_log(current->audit_context, GFP_ATOMIC,
> @@ -4448,9 +4436,7 @@ int dev_set_allmulti(struct net_device *dev, int inc)
> dev->flags &= ~IFF_ALLMULTI;
> else {
> dev->allmulti -= inc;
> - printk(KERN_WARNING "%s: allmulti touches roof, "
> - "set allmulti failed, allmulti feature of "
> - "device might be broken.\n", dev->name);
> + netdev_warn(dev, "allmulti touches roof, set allmulti failed, allmulti feature of device might be broken\n");
> return -EOVERFLOW;
> }
> }
> @@ -5127,8 +5113,8 @@ static void rollback_registered_many(struct list_head *head)
> * devices and proceed with the remaining.
> */
> if (dev->reg_state == NETREG_UNINITIALIZED) {
> - pr_debug("unregister_netdevice: device %s/%p never "
> - "was registered\n", dev->name, dev);
> + netdev_dbg(dev, "unregister_netdevice: (%p) device never was registered\n",
> + dev);
>
> WARN_ON(1);
> list_del(&dev->unreg_list);
> @@ -5204,27 +5190,26 @@ u32 netdev_fix_features(struct net_device *dev, u32 features)
> /* Fix illegal checksum combinations */
> if ((features & NETIF_F_HW_CSUM) &&
> (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) {
> - netdev_warn(dev, "mixed HW and IP checksum settings.\n");
> + netdev_warn(dev, "mixed HW and IP checksum settings\n");
> features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM);
> }
>
> if ((features & NETIF_F_NO_CSUM) &&
> (features & (NETIF_F_HW_CSUM|NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) {
> - netdev_warn(dev, "mixed no checksumming and other settings.\n");
> + netdev_warn(dev, "mixed no checksumming and other settings\n");
> features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM|NETIF_F_HW_CSUM);
> }
>
> /* Fix illegal SG+CSUM combinations. */
> if ((features & NETIF_F_SG) &&
> !(features & NETIF_F_ALL_CSUM)) {
> - netdev_dbg(dev,
> - "Dropping NETIF_F_SG since no checksum feature.\n");
> + netdev_dbg(dev, "Dropping NETIF_F_SG since no checksum feature\n");
> features &= ~NETIF_F_SG;
> }
>
> /* TSO requires that SG is present as well. */
> if ((features & NETIF_F_ALL_TSO) && !(features & NETIF_F_SG)) {
> - netdev_dbg(dev, "Dropping TSO features since no SG feature.\n");
> + netdev_dbg(dev, "Dropping TSO features since no SG feature\n");
> features &= ~NETIF_F_ALL_TSO;
> }
>
> @@ -5234,7 +5219,7 @@ u32 netdev_fix_features(struct net_device *dev, u32 features)
>
> /* Software GSO depends on SG. */
> if ((features & NETIF_F_GSO) && !(features & NETIF_F_SG)) {
> - netdev_dbg(dev, "Dropping NETIF_F_GSO since no SG feature.\n");
> + netdev_dbg(dev, "Dropping NETIF_F_GSO since no SG feature\n");
> features &= ~NETIF_F_GSO;
> }
>
> @@ -5244,14 +5229,12 @@ u32 netdev_fix_features(struct net_device *dev, u32 features)
> if (!((features & NETIF_F_GEN_CSUM) ||
> (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
> == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) {
> - netdev_dbg(dev,
> - "Dropping NETIF_F_UFO since no checksum offload features.\n");
> + netdev_dbg(dev, "Dropping NETIF_F_UFO since no checksum offload features\n");
> features &= ~NETIF_F_UFO;
> }
>
> if (!(features & NETIF_F_SG)) {
> - netdev_dbg(dev,
> - "Dropping NETIF_F_UFO since no NETIF_F_SG feature.\n");
> + netdev_dbg(dev, "Dropping NETIF_F_UFO since no NETIF_F_SG feature\n");
> features &= ~NETIF_F_UFO;
> }
> }
> @@ -5279,15 +5262,14 @@ int __netdev_update_features(struct net_device *dev)
> return 0;
>
> netdev_dbg(dev, "Features changed: 0x%08x -> 0x%08x\n",
> - dev->features, features);
> + dev->features, features);
>
> if (dev->netdev_ops->ndo_set_features)
> err = dev->netdev_ops->ndo_set_features(dev, features);
>
> if (unlikely(err < 0)) {
> - netdev_err(dev,
> - "set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
> - err, features, dev->features);
> + netdev_err(dev, "set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
> + err, features, dev->features);
> return -1;
> }
>
> @@ -5366,7 +5348,8 @@ static int netif_alloc_rx_queues(struct net_device *dev)
>
> rx = kcalloc(count, sizeof(struct netdev_rx_queue), GFP_KERNEL);
> if (!rx) {
> - pr_err("netdev: Unable to allocate %u rx queues.\n", count);
> + netdev_err(dev, "netdev: Unable to allocate %u rx queues\n",
> + count);
> return -ENOMEM;
> }
> dev->_rx = rx;
> @@ -5397,8 +5380,8 @@ static int netif_alloc_netdev_queues(struct net_device *dev)
>
> tx = kcalloc(count, sizeof(struct netdev_queue), GFP_KERNEL);
> if (!tx) {
> - pr_err("netdev: Unable to allocate %u tx queues.\n",
> - count);
> + netdev_err(dev, "netdev: Unable to allocate %u tx queues\n",
> + count);
> return -ENOMEM;
> }
Don't all of these get called prior to device registration? This change will
have us printing out unregistered net device: ... rather than netdev: ... on
these errors. Not tragic, but I rather think its nicer to just say netdev:...
> dev->_tx = tx;
> @@ -5658,10 +5641,8 @@ static void netdev_wait_allrefs(struct net_device *dev)
> refcnt = netdev_refcnt_read(dev);
>
> if (time_after(jiffies, warning_time + 10 * HZ)) {
> - printk(KERN_EMERG "unregister_netdevice: "
> - "waiting for %s to become free. Usage "
> - "count = %d\n",
> - dev->name, refcnt);
> + netdev_emerg(dev, "unregister_netdevice: waiting to become free. Usage count = %d\n",
> + refcnt);
> warning_time = jiffies;
> }
> }
> @@ -5706,8 +5687,8 @@ void netdev_run_todo(void)
> list_del(&dev->todo_list);
>
> if (unlikely(dev->reg_state != NETREG_UNREGISTERING)) {
> - printk(KERN_ERR "network todo '%s' but state %d\n",
> - dev->name, dev->reg_state);
> + netdev_err(dev, "network todo but state %d\n",
> + dev->reg_state);
> dump_stack();
> continue;
> }
Ditto on the unregistered net device thing.
><snip>
> diff --git a/net/core/neighbour.c b/net/core/neighbour.c
> index ceb505b..adcf198 100644
> --- a/net/core/neighbour.c
> +++ b/net/core/neighbour.c
> @@ -15,6 +15,8 @@
> * Harald Welte Add neighbour cache statistics like rtstat
> */
>
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> #include <linux/slab.h>
> #include <linux/types.h>
> #include <linux/kernel.h>
> @@ -693,14 +695,13 @@ void neigh_destroy(struct neighbour *neigh)
> NEIGH_CACHE_STAT_INC(neigh->tbl, destroys);
>
> if (!neigh->dead) {
> - printk(KERN_WARNING
> - "Destroying alive neighbour %p\n", neigh);
> + pr_warn("Destroying alive neighbour %p\n", neigh);
> dump_stack();
> return;
> }
>
> if (neigh_del_timer(neigh))
> - printk(KERN_WARNING "Impossible event.\n");
> + pr_warn("Impossible event\n");
>
> while ((hh = neigh->hh) != NULL) {
> neigh->hh = hh->hh_next;
> @@ -882,7 +883,7 @@ static void neigh_timer_handler(unsigned long arg)
>
> if (!(state & NUD_IN_TIMER)) {
> #ifndef CONFIG_SMP
> - printk(KERN_WARNING "neigh: timer & !nud_in_timer\n");
> + pr_warn("timer & !nud_in_timer\n");
> #endif
> goto out;
> }
> @@ -1575,8 +1576,8 @@ void neigh_table_init(struct neigh_table *tbl)
> write_unlock(&neigh_tbl_lock);
>
> if (unlikely(tmp)) {
> - printk(KERN_ERR "NEIGH: Registering multiple tables for "
> - "family %d\n", tbl->family);
> + pr_err("Registering multiple tables for family %d\n",
> + tbl->family);
> dump_stack();
> }
> }
> @@ -1592,7 +1593,7 @@ int neigh_table_clear(struct neigh_table *tbl)
> pneigh_queue_purge(&tbl->proxy_queue);
> neigh_ifdown(tbl, NULL);
> if (atomic_read(&tbl->entries))
> - printk(KERN_CRIT "neighbour leakage\n");
> + pr_crit("neighbour leakage\n");
> write_lock(&neigh_tbl_lock);
> for (tp = &neigh_tables; *tp; tp = &(*tp)->next) {
> if (*tp == tbl) {
> diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
> index ea489db..95ac0de 100644
> --- a/net/core/net_namespace.c
> +++ b/net/core/net_namespace.c
> @@ -1,3 +1,5 @@
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> #include <linux/workqueue.h>
> #include <linux/rtnetlink.h>
> #include <linux/cache.h>
> @@ -202,8 +204,8 @@ static void net_free(struct net *net)
> {
> #ifdef NETNS_REFCNT_DEBUG
> if (unlikely(atomic_read(&net->use_count) != 0)) {
> - printk(KERN_EMERG "network namespace not free! Usage: %d\n",
> - atomic_read(&net->use_count));
> + pr_emerg("network namespace not free! Usage: %d\n",
> + atomic_read(&net->use_count));
> return;
> }
> #endif
> diff --git a/net/core/netpoll.c b/net/core/netpoll.c
> index 18d9cbd..25e9af5 100644
> --- a/net/core/netpoll.c
> +++ b/net/core/netpoll.c
> @@ -9,6 +9,8 @@
> * Copyright (C) 2002 Red Hat, Inc.
> */
>
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> #include <linux/moduleparam.h>
> #include <linux/netdevice.h>
> #include <linux/etherdevice.h>
> @@ -629,18 +631,18 @@ out:
>
> void netpoll_print_options(struct netpoll *np)
> {
> - printk(KERN_INFO "%s: local port %d\n",
> - np->name, np->local_port);
> - printk(KERN_INFO "%s: local IP %pI4\n",
> - np->name, &np->local_ip);
> - printk(KERN_INFO "%s: interface '%s'\n",
> - np->name, np->dev_name);
> - printk(KERN_INFO "%s: remote port %d\n",
> - np->name, np->remote_port);
> - printk(KERN_INFO "%s: remote IP %pI4\n",
> - np->name, &np->remote_ip);
> - printk(KERN_INFO "%s: remote ethernet address %pM\n",
> - np->name, np->remote_mac);
> + pr_info("%s: local port %d\n",
> + np->name, np->local_port);
> + pr_info("%s: local IP %pI4\n",
> + np->name, &np->local_ip);
> + pr_info("%s: interface '%s'\n",
> + np->name, np->dev_name);
> + pr_info("%s: remote port %d\n",
> + np->name, np->remote_port);
> + pr_info("%s: remote IP %pI4\n",
> + np->name, &np->remote_ip);
> + pr_info("%s: remote ethernet address %pM\n",
> + np->name, np->remote_mac);
> }
> EXPORT_SYMBOL(netpoll_print_options);
>
> @@ -682,8 +684,8 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
> goto parse_failed;
> *delim = 0;
> if (*cur == ' ' || *cur == '\t')
> - printk(KERN_INFO "%s: warning: whitespace"
> - "is not allowed\n", np->name);
> + pr_info("%s: warning: whitespace is not allowed\n",
> + np->name);
> np->remote_port = simple_strtol(cur, NULL, 10);
> cur = delim;
> }
> @@ -707,8 +709,8 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
> return 0;
>
> parse_failed:
> - printk(KERN_INFO "%s: couldn't parse config at '%s'!\n",
> - np->name, cur);
> + pr_info("%s: couldn't parse config at '%s'!\n",
> + np->name, cur);
> return -1;
> }
> EXPORT_SYMBOL(netpoll_parse_options);
> @@ -723,7 +725,7 @@ int __netpoll_setup(struct netpoll *np)
>
> if ((ndev->priv_flags & IFF_DISABLE_NETPOLL) ||
> !ndev->netdev_ops->ndo_poll_controller) {
> - printk(KERN_ERR "%s: %s doesn't support polling, aborting.\n",
> + pr_err("%s: %s doesn't support polling, aborting\n",
> np->name, np->dev_name);
> err = -ENOTSUPP;
> goto out;
> @@ -787,13 +789,13 @@ int netpoll_setup(struct netpoll *np)
> if (np->dev_name)
> ndev = dev_get_by_name(&init_net, np->dev_name);
> if (!ndev) {
> - printk(KERN_ERR "%s: %s doesn't exist, aborting.\n",
> + pr_err("%s: %s doesn't exist, aborting\n",
> np->name, np->dev_name);
> return -ENODEV;
> }
>
> if (ndev->master) {
> - printk(KERN_ERR "%s: %s is a slave device, aborting.\n",
> + pr_err("%s: %s is a slave device, aborting\n",
> np->name, np->dev_name);
> err = -EBUSY;
> goto put;
> @@ -802,15 +804,15 @@ int netpoll_setup(struct netpoll *np)
> if (!netif_running(ndev)) {
> unsigned long atmost, atleast;
>
> - printk(KERN_INFO "%s: device %s not up yet, forcing it\n",
> - np->name, np->dev_name);
> + pr_info("%s: device %s not up yet, forcing it\n",
> + np->name, np->dev_name);
>
> rtnl_lock();
> err = dev_open(ndev);
> rtnl_unlock();
>
> if (err) {
> - printk(KERN_ERR "%s: failed to open %s\n",
> + pr_err("%s: failed to open %s\n",
> np->name, ndev->name);
> goto put;
> }
> @@ -819,9 +821,8 @@ int netpoll_setup(struct netpoll *np)
> atmost = jiffies + carrier_timeout * HZ;
> while (!netif_carrier_ok(ndev)) {
> if (time_after(jiffies, atmost)) {
> - printk(KERN_NOTICE
> - "%s: timeout waiting for carrier\n",
> - np->name);
> + pr_notice("%s: timeout waiting for carrier\n",
> + np->name);
> break;
> }
> msleep(1);
> @@ -833,9 +834,8 @@ int netpoll_setup(struct netpoll *np)
> */
>
> if (time_before(jiffies, atleast)) {
> - printk(KERN_NOTICE "%s: carrier detect appears"
> - " untrustworthy, waiting 4 seconds\n",
> - np->name);
> + pr_notice("%s: carrier detect appears untrustworthy, waiting 4 seconds\n",
> + np->name);
> msleep(4000);
> }
> }
> @@ -846,7 +846,7 @@ int netpoll_setup(struct netpoll *np)
>
> if (!in_dev || !in_dev->ifa_list) {
> rcu_read_unlock();
> - printk(KERN_ERR "%s: no IP address for %s, aborting\n",
> + pr_err("%s: no IP address for %s, aborting\n",
> np->name, np->dev_name);
> err = -EDESTADDRREQ;
> goto put;
> @@ -854,7 +854,7 @@ int netpoll_setup(struct netpoll *np)
>
> np->local_ip = in_dev->ifa_list->ifa_local;
> rcu_read_unlock();
> - printk(KERN_INFO "%s: local IP %pI4\n", np->name, &np->local_ip);
> + pr_info("%s: local IP %pI4\n", np->name, &np->local_ip);
> }
>
> np->dev = ndev;
> diff --git a/net/core/pktgen.c b/net/core/pktgen.c
> index f76079c..be6224c 100644
> --- a/net/core/pktgen.c
> +++ b/net/core/pktgen.c
> @@ -505,7 +505,7 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf,
> pktgen_reset_all_threads();
>
> else
> - pr_warning("Unknown command: %s\n", data);
> + pr_warn("Unknown command: %s\n", data);
>
> err = count;
>
> @@ -855,14 +855,14 @@ static ssize_t pktgen_if_write(struct file *file,
> pg_result = &(pkt_dev->result[0]);
>
> if (count < 1) {
> - pr_warning("wrong command format\n");
> + pr_warn("wrong command format\n");
> return -EINVAL;
> }
>
> max = count;
> tmp = count_trail_chars(user_buffer, max);
> if (tmp < 0) {
> - pr_warning("illegal format\n");
> + pr_warn("illegal format\n");
> return tmp;
> }
> i = tmp;
> @@ -2020,15 +2020,15 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
> ntxq = pkt_dev->odev->real_num_tx_queues;
>
> if (ntxq <= pkt_dev->queue_map_min) {
> - pr_warning("WARNING: Requested queue_map_min (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
> - pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq,
> - pkt_dev->odevname);
> + pr_warn("WARNING: Requested queue_map_min (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
> + pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq,
> + pkt_dev->odevname);
> pkt_dev->queue_map_min = ntxq - 1;
> }
> if (pkt_dev->queue_map_max >= ntxq) {
> - pr_warning("WARNING: Requested queue_map_max (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
> - pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq,
> - pkt_dev->odevname);
> + pr_warn("WARNING: Requested queue_map_max (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
> + pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq,
> + pkt_dev->odevname);
> pkt_dev->queue_map_max = ntxq - 1;
> }
>
> @@ -3159,8 +3159,7 @@ static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
> int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1;
>
> if (!pkt_dev->running) {
> - pr_warning("interface: %s is already stopped\n",
> - pkt_dev->odevname);
> + pr_warn("interface: %s is already stopped\n", pkt_dev->odevname);
> return -EINVAL;
> }
>
> @@ -3675,7 +3674,7 @@ static int pktgen_remove_device(struct pktgen_thread *t,
> pr_debug("remove_device pkt_dev=%p\n", pkt_dev);
>
> if (pkt_dev->running) {
> - pr_warning("WARNING: trying to remove a running interface, stopping it now\n");
> + pr_warn("WARNING: trying to remove a running interface, stopping it now\n");
> pktgen_stop_device(pkt_dev);
> }
>
> @@ -3729,8 +3728,8 @@ static int __init pg_init(void)
>
> err = pktgen_create_thread(cpu);
> if (err)
> - pr_warning("WARNING: Cannot create thread for cpu %d (%d)\n",
> - cpu, err);
> + pr_warn("WARNING: Cannot create thread for cpu %d (%d)\n",
> + cpu, err);
> }
>
> if (list_empty(&pktgen_threads)) {
> diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
> index a798fc6..53fc9f6 100644
> --- a/net/core/rtnetlink.c
> +++ b/net/core/rtnetlink.c
> @@ -16,6 +16,8 @@
> * Vitaly E. Lavrov RTA_OK arithmetics was wrong.
> */
>
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> #include <linux/errno.h>
> #include <linux/module.h>
> #include <linux/types.h>
> @@ -1468,10 +1470,9 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
>
> errout:
> if (err < 0 && modified && net_ratelimit())
> - printk(KERN_WARNING "A link change request failed with "
> - "some changes committed already. Interface %s may "
> - "have been left with an inconsistent configuration, "
> - "please check.\n", dev->name);
> + netdev_warn(dev,
> +"A link change request failed with some changes committed already.\n"
> +"Interface may have been left with an inconsistent configuration, please check.\n");
>
> if (send_addr_notify)
> call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
> diff --git a/net/core/skbuff.c b/net/core/skbuff.c
> index 46cbd28..e67b4a4 100644
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -120,11 +120,9 @@ static const struct pipe_buf_operations sock_pipe_buf_ops = {
> */
> static void skb_over_panic(struct sk_buff *skb, int sz, void *here)
> {
> - printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
> - "data:%p tail:%#lx end:%#lx dev:%s\n",
> - here, skb->len, sz, skb->head, skb->data,
> - (unsigned long)skb->tail, (unsigned long)skb->end,
> - skb->dev ? skb->dev->name : "<NULL>");
> + netdev_emerg(skb->dev, "skb_over_panic: text:%p len:%d put:%d head:%p data:%p tail:%#lx end:%#lx\n",
> + here, skb->len, sz, skb->head, skb->data,
> + (unsigned long)skb->tail, (unsigned long)skb->end);
> BUG();
> }
>
Are you guaranteed to have skb->dev be non-null here? netdev_printk handles
that, but flaggin the fact that we have a NULL net device when thats not really
an issue seems like it would destract from the purpose of this printk. Same
with the others in this file below
> @@ -139,11 +137,9 @@ static void skb_over_panic(struct sk_buff *skb, int sz, void *here)
>
> static void skb_under_panic(struct sk_buff *skb, int sz, void *here)
> {
> - printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
> - "data:%p tail:%#lx end:%#lx dev:%s\n",
> - here, skb->len, sz, skb->head, skb->data,
> - (unsigned long)skb->tail, (unsigned long)skb->end,
> - skb->dev ? skb->dev->name : "<NULL>");
> + netdev_emerg(skb->dev, "skb_under_panic: text:%p len:%d put:%d head:%p data:%p tail:%#lx end:%#lx\n",
> + here, skb->len, sz, skb->head, skb->data,
> + (unsigned long)skb->tail, (unsigned long)skb->end);
> BUG();
> }
>
> @@ -3061,9 +3057,8 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
> if (unlikely(start > skb_headlen(skb)) ||
> unlikely((int)start + off > skb_headlen(skb) - 2)) {
> if (net_ratelimit())
> - printk(KERN_WARNING
> - "bad partial csum: csum=%u/%u len=%u\n",
> - start, off, skb_headlen(skb));
> + netdev_warn(skb->dev, "bad partial csum: csum=%u/%u len=%u\n",
> + start, off, skb_headlen(skb));
> return false;
> }
> skb->ip_summed = CHECKSUM_PARTIAL;
> @@ -3076,7 +3071,6 @@ EXPORT_SYMBOL_GPL(skb_partial_csum_set);
> void __skb_warn_lro_forwarding(const struct sk_buff *skb)
> {
> if (net_ratelimit())
> - pr_warning("%s: received packets cannot be forwarded"
> - " while LRO is enabled\n", skb->dev->name);
> + netdev_warn(skb->dev, "received packets cannot be forwarded while LRO is enabled\n");
> }
> EXPORT_SYMBOL(__skb_warn_lro_forwarding);
><snip>
Neil
>
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