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netfilter: Replace printk() with pr_*() and define pr_fmt()

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Using pr_<loglevel>() is more concise than printk(KERN_<LOGLEVEL>).
This patch:
* Replace printks having a log level with the appropriate
pr_*() macros.
* Define pr_fmt() to include relevant name.
* Remove redundant prefixes from pr_*() calls.
* Indent the code where possible.
* Remove the useless output messages.
* Remove periods from messages.

Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Arushi Singhal 2018-03-12 18:36:29 +05:30 committed by Pablo Neira Ayuso
parent 472a73e007
commit 5191d70f83
8 changed files with 37 additions and 26 deletions
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6
net/netfilter/nf_conntrack_acct.c
View File

@ -8,6 +8,8 @@
* published by the Free Software Foundation. * published by the Free Software Foundation.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/netfilter.h> #include <linux/netfilter.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/kernel.h> #include <linux/kernel.h>
@ -80,7 +82,7 @@ static int nf_conntrack_acct_init_sysctl(struct net *net)
net->ct.acct_sysctl_header = register_net_sysctl(net, "net/netfilter", net->ct.acct_sysctl_header = register_net_sysctl(net, "net/netfilter",
table); table);
if (!net->ct.acct_sysctl_header) { if (!net->ct.acct_sysctl_header) {
printk(KERN_ERR "nf_conntrack_acct: can't register to sysctl.\n"); pr_err("can't register to sysctl\n");
goto out_register; goto out_register;
} }
return 0; return 0;
@ -125,7 +127,7 @@ int nf_conntrack_acct_init(void)
{ {
int ret = nf_ct_extend_register(&acct_extend); int ret = nf_ct_extend_register(&acct_extend);
if (ret < 0) if (ret < 0)
pr_err("nf_conntrack_acct: Unable to register extension\n"); pr_err("Unable to register extension\n");
return ret; return ret;
} }

6
net/netfilter/nf_conntrack_ecache.c
View File

@ -11,6 +11,8 @@
* published by the Free Software Foundation. * published by the Free Software Foundation.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/types.h> #include <linux/types.h>
#include <linux/netfilter.h> #include <linux/netfilter.h>
#include <linux/skbuff.h> #include <linux/skbuff.h>
@ -372,7 +374,7 @@ static int nf_conntrack_event_init_sysctl(struct net *net)
net->ct.event_sysctl_header = net->ct.event_sysctl_header =
register_net_sysctl(net, "net/netfilter", table); register_net_sysctl(net, "net/netfilter", table);
if (!net->ct.event_sysctl_header) { if (!net->ct.event_sysctl_header) {
printk(KERN_ERR "nf_ct_event: can't register to sysctl.\n"); pr_err("can't register to sysctl\n");
goto out_register; goto out_register;
} }
return 0; return 0;
@ -419,7 +421,7 @@ int nf_conntrack_ecache_init(void)
{ {
int ret = nf_ct_extend_register(&event_extend); int ret = nf_ct_extend_register(&event_extend);
if (ret < 0) if (ret < 0)
pr_err("nf_ct_event: Unable to register event extension.\n"); pr_err("Unable to register event extension\n");
BUILD_BUG_ON(__IPCT_MAX >= 16); /* ctmask, missed use u16 */ BUILD_BUG_ON(__IPCT_MAX >= 16); /* ctmask, missed use u16 */

6
net/netfilter/nf_conntrack_timestamp.c
View File

@ -6,6 +6,8 @@
* published by the Free Software Foundation (or any later at your option). * published by the Free Software Foundation (or any later at your option).
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/netfilter.h> #include <linux/netfilter.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/kernel.h> #include <linux/kernel.h>
@ -58,7 +60,7 @@ static int nf_conntrack_tstamp_init_sysctl(struct net *net)
net->ct.tstamp_sysctl_header = register_net_sysctl(net, "net/netfilter", net->ct.tstamp_sysctl_header = register_net_sysctl(net, "net/netfilter",
table); table);
if (!net->ct.tstamp_sysctl_header) { if (!net->ct.tstamp_sysctl_header) {
printk(KERN_ERR "nf_ct_tstamp: can't register to sysctl.\n"); pr_err("can't register to sysctl\n");
goto out_register; goto out_register;
} }
return 0; return 0;
@ -104,7 +106,7 @@ int nf_conntrack_tstamp_init(void)
int ret; int ret;
ret = nf_ct_extend_register(&tstamp_extend); ret = nf_ct_extend_register(&tstamp_extend);
if (ret < 0) if (ret < 0)
pr_err("nf_ct_tstamp: Unable to register extension\n"); pr_err("Unable to register extension\n");
return ret; return ret;
} }

4
net/netfilter/nf_nat_core.c
View File

@ -8,6 +8,8 @@
* published by the Free Software Foundation. * published by the Free Software Foundation.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h> #include <linux/module.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/timer.h> #include <linux/timer.h>
@ -814,7 +816,7 @@ static int __init nf_nat_init(void)
ret = nf_ct_extend_register(&nat_extend); ret = nf_ct_extend_register(&nat_extend);
if (ret < 0) { if (ret < 0) {
nf_ct_free_hashtable(nf_nat_bysource, nf_nat_htable_size); nf_ct_free_hashtable(nf_nat_bysource, nf_nat_htable_size);
printk(KERN_ERR "nf_nat_core: Unable to register extension\n"); pr_err("Unable to register extension\n");
return ret; return ret;
} }

7
net/netfilter/nf_nat_ftp.c
View File

@ -8,6 +8,8 @@
* published by the Free Software Foundation. * published by the Free Software Foundation.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h> #include <linux/module.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/inet.h> #include <linux/inet.h>
@ -71,7 +73,7 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb,
char buffer[sizeof("|1||65535|") + INET6_ADDRSTRLEN]; char buffer[sizeof("|1||65535|") + INET6_ADDRSTRLEN];
unsigned int buflen; unsigned int buflen;
pr_debug("FTP_NAT: type %i, off %u len %u\n", type, matchoff, matchlen); pr_debug("type %i, off %u len %u\n", type, matchoff, matchlen);
/* Connection will come from wherever this packet goes, hence !dir */ /* Connection will come from wherever this packet goes, hence !dir */
newaddr = ct->tuplehash[!dir].tuple.dst.u3; newaddr = ct->tuplehash[!dir].tuple.dst.u3;
@ -136,8 +138,7 @@ static int __init nf_nat_ftp_init(void)
/* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */ /* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */
static int warn_set(const char *val, const struct kernel_param *kp) static int warn_set(const char *val, const struct kernel_param *kp)
{ {
printk(KERN_INFO KBUILD_MODNAME pr_info("kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
return 0; return 0;
} }
module_param_call(ports, warn_set, NULL, NULL, 0); module_param_call(ports, warn_set, NULL, NULL, 0);

7
net/netfilter/nf_nat_irc.c
View File

@ -10,6 +10,8 @@
* 2 of the License, or (at your option) any later version. * 2 of the License, or (at your option) any later version.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h> #include <linux/module.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/tcp.h> #include <linux/tcp.h>
@ -79,7 +81,7 @@ static unsigned int help(struct sk_buff *skb,
*/ */
/* AAA = "us", ie. where server normally talks to. */ /* AAA = "us", ie. where server normally talks to. */
snprintf(buffer, sizeof(buffer), "%u %u", ntohl(newaddr.ip), port); snprintf(buffer, sizeof(buffer), "%u %u", ntohl(newaddr.ip), port);
pr_debug("nf_nat_irc: inserting '%s' == %pI4, port %u\n", pr_debug("inserting '%s' == %pI4, port %u\n",
buffer, &newaddr.ip, port); buffer, &newaddr.ip, port);
if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff, matchoff, if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff, matchoff,
@ -108,8 +110,7 @@ static int __init nf_nat_irc_init(void)
/* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */ /* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */
static int warn_set(const char *val, const struct kernel_param *kp) static int warn_set(const char *val, const struct kernel_param *kp)
{ {
printk(KERN_INFO KBUILD_MODNAME pr_info("kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
return 0; return 0;
} }
module_param_call(ports, warn_set, NULL, NULL, 0); module_param_call(ports, warn_set, NULL, NULL, 0);

14
net/netfilter/nfnetlink_queue.c
View File

@ -14,6 +14,9 @@
* published by the Free Software Foundation. * published by the Free Software Foundation.
* *
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h> #include <linux/module.h>
#include <linux/skbuff.h> #include <linux/skbuff.h>
#include <linux/init.h> #include <linux/init.h>
@ -833,11 +836,8 @@ nfqnl_mangle(void *data, int data_len, struct nf_queue_entry *e, int diff)
if (diff > skb_tailroom(e->skb)) { if (diff > skb_tailroom(e->skb)) {
nskb = skb_copy_expand(e->skb, skb_headroom(e->skb), nskb = skb_copy_expand(e->skb, skb_headroom(e->skb),
diff, GFP_ATOMIC); diff, GFP_ATOMIC);
if (!nskb) { if (!nskb)
printk(KERN_WARNING "nf_queue: OOM "
"in mangle, dropping packet\n");
return -ENOMEM; return -ENOMEM;
}
kfree_skb(e->skb); kfree_skb(e->skb);
e->skb = nskb; e->skb = nskb;
} }
@ -1536,20 +1536,20 @@ static int __init nfnetlink_queue_init(void)
status = register_pernet_subsys(&nfnl_queue_net_ops); status = register_pernet_subsys(&nfnl_queue_net_ops);
if (status < 0) { if (status < 0) {
pr_err("nf_queue: failed to register pernet ops\n"); pr_err("failed to register pernet ops\n");
goto out; goto out;
} }
netlink_register_notifier(&nfqnl_rtnl_notifier); netlink_register_notifier(&nfqnl_rtnl_notifier);
status = nfnetlink_subsys_register(&nfqnl_subsys); status = nfnetlink_subsys_register(&nfqnl_subsys);
if (status < 0) { if (status < 0) {
pr_err("nf_queue: failed to create netlink socket\n"); pr_err("failed to create netlink socket\n");
goto cleanup_netlink_notifier; goto cleanup_netlink_notifier;
} }
status = register_netdevice_notifier(&nfqnl_dev_notifier); status = register_netdevice_notifier(&nfqnl_dev_notifier);
if (status < 0) { if (status < 0) {
pr_err("nf_queue: failed to register netdevice notifier\n"); pr_err("failed to register netdevice notifier\n");
goto cleanup_netlink_subsys; goto cleanup_netlink_subsys;
} }

13
net/netfilter/xt_time.c
View File

@ -9,6 +9,9 @@
* This file is distributed under the terms of the GNU General Public * This file is distributed under the terms of the GNU General Public
* License (GPL). Copies of the GPL can be obtained from gnu.org/gpl. * License (GPL). Copies of the GPL can be obtained from gnu.org/gpl.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/ktime.h> #include <linux/ktime.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/skbuff.h> #include <linux/skbuff.h>
@ -266,13 +269,11 @@ static int __init time_mt_init(void)
int minutes = sys_tz.tz_minuteswest; int minutes = sys_tz.tz_minuteswest;
if (minutes < 0) /* east of Greenwich */ if (minutes < 0) /* east of Greenwich */
printk(KERN_INFO KBUILD_MODNAME pr_info("kernel timezone is +%02d%02d\n",
": kernel timezone is +%02d%02d\n", -minutes / 60, -minutes % 60);
-minutes / 60, -minutes % 60);
else /* west of Greenwich */ else /* west of Greenwich */
printk(KERN_INFO KBUILD_MODNAME pr_info("kernel timezone is -%02d%02d\n",
": kernel timezone is -%02d%02d\n", minutes / 60, minutes % 60);
minutes / 60, minutes % 60);
return xt_register_match(&xt_time_mt_reg); return xt_register_match(&xt_time_mt_reg);
} }