Re: [PATCH 3/3] Make use of pr_fmt where applicable

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On 24-10-2014 16:11, Marcelo Ricardo Leitner wrote:
On 24-10-2014 10:59, Marcelo Ricardo Leitner wrote:
And also remove PRINTR macro, as it was used only once, wasn't helping
much and was actually making it harder to use pr_err().

Signed-off-by: Marcelo Ricardo Leitner <mleitner@xxxxxxxxxx>
---
  net/netfilter/nfnetlink_log.c | 19 +++++++++----------
  1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index
b1e3a05794169283ed50d1c0fb4f44d9e7753eeb..1c6c970e5d1baa5517c5589bd52345d0ae971c1a
100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -12,6 +12,8 @@
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
  #include <linux/module.h>
  #include <linux/skbuff.h>
  #include <linux/if_arp.h>
@@ -45,9 +47,6 @@
  #define NFULNL_QTHRESH_DEFAULT     100    /* 100 packets */
  #define NFULNL_COPY_RANGE_MAX    0xFFFF    /* max packet size is limited
by 16-bit struct nfattr nfa_len field */

-#define PRINTR(x, args...)    do { if (net_ratelimit()) \
-                     printk(x, ## args); } while (0);
-
  struct nfulnl_instance {
      struct hlist_node hlist;    /* global list of instances */
      spinlock_t lock;
@@ -335,8 +334,7 @@ nfulnl_alloc_skb(struct net *net, u32 peer_portid,
unsigned int inst_size,
              skb = nfnetlink_alloc_skb(net, pkt_size,
                            peer_portid, GFP_ATOMIC);
              if (!skb)
-                pr_err("nfnetlink_log: can't even alloc %u bytes\n",
-                       pkt_size);
+                pr_err("can't even alloc %u bytes\n", pkt_size);
          }
      }

@@ -569,7 +567,7 @@ __build_packet_message(struct nfnl_log_net *log,
          int size = nla_attr_size(data_len);

          if (skb_tailroom(inst->skb) < nla_total_size(data_len)) {
-            printk(KERN_WARNING "nfnetlink_log: no tailroom!\n");
+            pr_warn("no tailroom!\n");
              return -1;
          }

@@ -585,7 +583,8 @@ __build_packet_message(struct nfnl_log_net *log,
      return 0;

  nla_put_failure:
-    PRINTR(KERN_ERR "nfnetlink_log: error creating log nlmsg\n");
+    if (net_ratelimit())
+        pr_err("error creating log nlmsg\n");

I'll send a v2 using pr_err_ratelimited() instead

Or not.. WDYT? Because we are currently using net_ratelimit() and pr_err_ratelimited() would create a new limit just for this message.

Thanks,
Marcelo

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