ppp: Clean up kernel log messages.

Use netdev_*() and pr_*().

To preserve existing semantics in cases where KERN_DEBUG is indeed
appropriate, use netdev_printk(KERN_DEBUG, ...)

Convert PPPIOCDETACH to pr_warn() because an unexpected file count is
a serious bug and should be logged with KERN_WARN.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index c7a6c44..3d7a38e 100644 (file)
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -592,8 +592,8 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        ppp_release(NULL, file);
                        err = 0;
                } else
-                       printk(KERN_DEBUG "PPPIOCDETACH file->f_count=%ld\n",
-                              atomic_long_read(&file->f_count));
+                       pr_warn("PPPIOCDETACH file->f_count=%ld\n",
+                               atomic_long_read(&file->f_count));
                mutex_unlock(&ppp_mutex);
                return err;
        }
@@ -630,7 +630,7 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
        if (pf->kind != INTERFACE) {
                /* can't happen */
-               printk(KERN_ERR "PPP: not interface or channel??\n");
+               pr_err("PPP: not interface or channel??\n");
                return -EINVAL;
        }
 
@@ -704,7 +704,8 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                }
                vj = slhc_init(val2+1, val+1);
                if (!vj) {
-                       printk(KERN_ERR "PPP: no memory (VJ compressor)\n");
+                       netdev_err(ppp->dev,
+                                  "PPP: no memory (VJ compressor)\n");
                        err = -ENOMEM;
                        break;
                }
@@ -898,17 +899,17 @@ static int __init ppp_init(void)
 {
        int err;
 
-       printk(KERN_INFO "PPP generic driver version " PPP_VERSION "\n");
+       pr_info("PPP generic driver version " PPP_VERSION "\n");
 
        err = register_pernet_device(&ppp_net_ops);
        if (err) {
-               printk(KERN_ERR "failed to register PPP pernet device (%d)\n", err);
+               pr_err("failed to register PPP pernet device (%d)\n", err);
                goto out;
        }
 
        err = register_chrdev(PPP_MAJOR, "ppp", &ppp_device_fops);
        if (err) {
-               printk(KERN_ERR "failed to register PPP device (%d)\n", err);
+               pr_err("failed to register PPP device (%d)\n", err);
                goto out_net;
        }
 
@@ -1078,7 +1079,7 @@ pad_compress_skb(struct ppp *ppp, struct sk_buff *skb)
        new_skb = alloc_skb(new_skb_size, GFP_ATOMIC);
        if (!new_skb) {
                if (net_ratelimit())
-                       printk(KERN_ERR "PPP: no memory (comp pkt)\n");
+                       netdev_err(ppp->dev, "PPP: no memory (comp pkt)\n");
                return NULL;
        }
        if (ppp->dev->hard_header_len > PPP_HDRLEN)
@@ -1108,7 +1109,7 @@ pad_compress_skb(struct ppp *ppp, struct sk_buff *skb)
                 * the same number.
                 */
                if (net_ratelimit())
-                       printk(KERN_ERR "ppp: compressor dropped pkt\n");
+                       netdev_err(ppp->dev, "ppp: compressor dropped pkt\n");
                kfree_skb(skb);
                kfree_skb(new_skb);
                new_skb = NULL;
@@ -1138,7 +1139,9 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
                if (ppp->pass_filter &&
                    sk_run_filter(skb, ppp->pass_filter) == 0) {
                        if (ppp->debug & 1)
-                               printk(KERN_DEBUG "PPP: outbound frame not passed\n");
+                               netdev_printk(KERN_DEBUG, ppp->dev,
+                                             "PPP: outbound frame "
+                                             "not passed\n");
                        kfree_skb(skb);
                        return;
                }
@@ -1164,7 +1167,7 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
                new_skb = alloc_skb(skb->len + ppp->dev->hard_header_len - 2,
                                    GFP_ATOMIC);
                if (!new_skb) {
-                       printk(KERN_ERR "PPP: no memory (VJ comp pkt)\n");
+                       netdev_err(ppp->dev, "PPP: no memory (VJ comp pkt)\n");
                        goto drop;
                }
                skb_reserve(new_skb, ppp->dev->hard_header_len - 2);
@@ -1202,7 +1205,9 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
            proto != PPP_LCP && proto != PPP_CCP) {
                if (!(ppp->flags & SC_CCP_UP) && (ppp->flags & SC_MUST_COMP)) {
                        if (net_ratelimit())
-                               printk(KERN_ERR "ppp: compression required but down - pkt dropped.\n");
+                               netdev_err(ppp->dev,
+                                          "ppp: compression required but "
+                                          "down - pkt dropped.\n");
                        goto drop;
                }
                skb = pad_compress_skb(ppp, skb);
@@ -1505,7 +1510,7 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
  noskb:
        spin_unlock_bh(&pch->downl);
        if (ppp->debug & 1)
-               printk(KERN_ERR "PPP: no memory (fragment)\n");
+               netdev_err(ppp->dev, "PPP: no memory (fragment)\n");
        ++ppp->dev->stats.tx_errors;
        ++ppp->nxseq;
        return 1;       /* abandon the frame */
@@ -1686,7 +1691,8 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
                        /* copy to a new sk_buff with more tailroom */
                        ns = dev_alloc_skb(skb->len + 128);
                        if (!ns) {
-                               printk(KERN_ERR"PPP: no memory (VJ decomp)\n");
+                               netdev_err(ppp->dev, "PPP: no memory "
+                                          "(VJ decomp)\n");
                                goto err;
                        }
                        skb_reserve(ns, 2);
@@ -1699,7 +1705,8 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
 
                len = slhc_uncompress(ppp->vj, skb->data + 2, skb->len - 2);
                if (len <= 0) {
-                       printk(KERN_DEBUG "PPP: VJ decompression error\n");
+                       netdev_printk(KERN_DEBUG, ppp->dev,
+                                     "PPP: VJ decompression error\n");
                        goto err;
                }
                len += 2;
@@ -1721,7 +1728,7 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
                        goto err;
 
                if (slhc_remember(ppp->vj, skb->data + 2, skb->len - 2) <= 0) {
-                       printk(KERN_ERR "PPP: VJ uncompressed error\n");
+                       netdev_err(ppp->dev, "PPP: VJ uncompressed error\n");
                        goto err;
                }
                proto = PPP_IP;
@@ -1762,8 +1769,9 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
                        if (ppp->pass_filter &&
                            sk_run_filter(skb, ppp->pass_filter) == 0) {
                                if (ppp->debug & 1)
-                                       printk(KERN_DEBUG "PPP: inbound frame "
-                                              "not passed\n");
+                                       netdev_printk(KERN_DEBUG, ppp->dev,
+                                                     "PPP: inbound frame "
+                                                     "not passed\n");
                                kfree_skb(skb);
                                return;
                        }
@@ -1821,7 +1829,8 @@ ppp_decompress_frame(struct ppp *ppp, struct sk_buff *skb)
 
                ns = dev_alloc_skb(obuff_size);
                if (!ns) {
-                       printk(KERN_ERR "ppp_decompress_frame: no memory\n");
+                       netdev_err(ppp->dev, "ppp_decompress_frame: "
+                                  "no memory\n");
                        goto err;
                }
                /* the decompressor still expects the A/C bytes in the hdr */
@@ -2002,8 +2011,9 @@ ppp_mp_reconstruct(struct ppp *ppp)
                next = p->next;
                if (seq_before(PPP_MP_CB(p)->sequence, seq)) {
                        /* this can't happen, anyway ignore the skb */
-                       printk(KERN_ERR "ppp_mp_reconstruct bad seq %u < %u\n",
-                              PPP_MP_CB(p)->sequence, seq);
+                       netdev_err(ppp->dev, "ppp_mp_reconstruct bad "
+                                  "seq %u < %u\n",
+                                  PPP_MP_CB(p)->sequence, seq);
                        head = next;
                        continue;
                }
@@ -2042,8 +2052,9 @@ ppp_mp_reconstruct(struct ppp *ppp)
                    (PPP_MP_CB(head)->BEbits & B)) {
                        if (len > ppp->mrru + 2) {
                                ++ppp->dev->stats.rx_length_errors;
-                               printk(KERN_DEBUG "PPP: reconstructed packet"
-                                      " is too long (%d)\n", len);
+                               netdev_printk(KERN_DEBUG, ppp->dev,
+                                             "PPP: reconstructed packet"
+                                             " is too long (%d)\n", len);
                        } else if (p == head) {
                                /* fragment is complete packet - reuse skb */
                                tail = p;
@@ -2051,8 +2062,9 @@ ppp_mp_reconstruct(struct ppp *ppp)
                                break;
                        } else if ((skb = dev_alloc_skb(len)) == NULL) {
                                ++ppp->dev->stats.rx_missed_errors;
-                               printk(KERN_DEBUG "PPP: no memory for "
-                                      "reconstructed packet");
+                               netdev_printk(KERN_DEBUG, ppp->dev,
+                                             "PPP: no memory for "
+                                             "reconstructed packet");
                        } else {
                                tail = p;
                                break;
@@ -2077,9 +2089,10 @@ ppp_mp_reconstruct(struct ppp *ppp)
                   signal a receive error. */
                if (PPP_MP_CB(head)->sequence != ppp->nextseq) {
                        if (ppp->debug & 1)
-                               printk(KERN_DEBUG "  missed pkts %u..%u\n",
-                                      ppp->nextseq,
-                                      PPP_MP_CB(head)->sequence-1);
+                               netdev_printk(KERN_DEBUG, ppp->dev,
+                                             "  missed pkts %u..%u\n",
+                                             ppp->nextseq,
+                                             PPP_MP_CB(head)->sequence-1);
                        ++ppp->dev->stats.rx_dropped;
                        ppp_receive_error(ppp);
                }
@@ -2617,8 +2630,8 @@ ppp_create_interface(struct net *net, int unit, int *retp)
        ret = register_netdev(dev);
        if (ret != 0) {
                unit_put(&pn->units_idr, unit);
-               printk(KERN_ERR "PPP: couldn't register device %s (%d)\n",
-                      dev->name, ret);
+               netdev_err(ppp->dev, "PPP: couldn't register device %s (%d)\n",
+                          dev->name, ret);
                goto out2;
        }
 
@@ -2690,9 +2703,9 @@ static void ppp_destroy_interface(struct ppp *ppp)
 
        if (!ppp->file.dead || ppp->n_channels) {
                /* "can't happen" */
-               printk(KERN_ERR "ppp: destroying ppp struct %p but dead=%d "
-                      "n_channels=%d !\n", ppp, ppp->file.dead,
-                      ppp->n_channels);
+               netdev_err(ppp->dev, "ppp: destroying ppp struct %p "
+                          "but dead=%d n_channels=%d !\n",
+                          ppp, ppp->file.dead, ppp->n_channels);
                return;
        }
 
@@ -2834,8 +2847,7 @@ static void ppp_destroy_channel(struct channel *pch)
 
        if (!pch->file.dead) {
                /* "can't happen" */
-               printk(KERN_ERR "ppp: destroying undead channel %p !\n",
-                      pch);
+               pr_err("ppp: destroying undead channel %p !\n", pch);
                return;
        }
        skb_queue_purge(&pch->file.xq);
@@ -2847,7 +2859,7 @@ static void __exit ppp_cleanup(void)
 {
        /* should never happen */
        if (atomic_read(&ppp_unit_count) || atomic_read(&channel_count))
-               printk(KERN_ERR "PPP: removing module but units remain!\n");
+               pr_err("PPP: removing module but units remain!\n");
        unregister_chrdev(PPP_MAJOR, "ppp");
        device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0));
        class_destroy(ppp_class);
@@ -2865,7 +2877,7 @@ static int __unit_alloc(struct idr *p, void *ptr, int n)
 
 again:
        if (!idr_pre_get(p, GFP_KERNEL)) {
-               printk(KERN_ERR "PPP: No free memory for idr\n");
+               pr_err("PPP: No free memory for idr\n");
                return -ENOMEM;
        }