mac80211: Remove unnecessary OOM logging messages

Removing unnecessary messages saves code and text.

Site specific OOM messages are duplications of a generic MM
out of memory message and aren't really useful, so just
delete them.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

10 files changed, 32 insertions, 93 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index fd1aaf2a4a6c..e6cab51dceb0 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -167,12 +167,8 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
         u16 capab;
 
         skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer "
-                       "for addba resp frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
 
         skb_reserve(skb, local->hw.extra_tx_headroom);
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
@@ -279,14 +275,8 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 
         /* prepare A-MPDU MLME for Rx aggregation */
         tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL);
-        if (!tid_agg_rx) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-                if (net_ratelimit())
-                        printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
-                                        tid);
-#endif
+        if (!tid_agg_rx)
                 goto end;
-        }
 
         spin_lock_init(&tid_agg_rx->reorder_lock);
 
@@ -306,11 +296,6 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
         tid_agg_rx->reorder_time =
                 kcalloc(buf_size, sizeof(unsigned long), GFP_KERNEL);
         if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-                if (net_ratelimit())
-                        printk(KERN_ERR "can not allocate reordering buffer "
-                               "to tid %d\n", tid);
-#endif
                 kfree(tid_agg_rx->reorder_buf);
                 kfree(tid_agg_rx->reorder_time);
                 kfree(tid_agg_rx);
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 018108d1a2fd..f10e1096c332 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -68,11 +68,9 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 
         skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
 
-        if (!skb) {
-                printk(KERN_ERR "%s: failed to allocate buffer "
-                                "for addba request frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
         memset(mgmt, 0, 24);
@@ -114,11 +112,9 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
         u16 bar_control = 0;
 
         skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom);
-        if (!skb) {
-                printk(KERN_ERR "%s: failed to allocate buffer for "
-                        "bar frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
         bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar));
         memset(bar, 0, sizeof(*bar));
@@ -413,11 +409,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
         /* prepare A-MPDU MLME for Tx aggregation */
         tid_tx = kzalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
         if (!tid_tx) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-                if (net_ratelimit())
-                        printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
-                                        tid);
-#endif
                 ret = -ENOMEM;
                 goto err_unlock_sta;
         }
@@ -574,14 +565,9 @@ void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_vif *vif,
         struct ieee80211_ra_tid *ra_tid;
         struct sk_buff *skb = dev_alloc_skb(0);
 
-        if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-                if (net_ratelimit())
-                        printk(KERN_WARNING "%s: Not enough memory, "
-                               "dropping start BA session", sdata->name);
-#endif
+        if (unlikely(!skb))
                 return;
-        }
+
         ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
         memcpy(&ra_tid->ra, ra, ETH_ALEN);
         ra_tid->tid = tid;
@@ -727,14 +713,9 @@ void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_vif *vif,
         struct ieee80211_ra_tid *ra_tid;
         struct sk_buff *skb = dev_alloc_skb(0);
 
-        if (unlikely(!skb)) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-                if (net_ratelimit())
-                        printk(KERN_WARNING "%s: Not enough memory, "
-                               "dropping stop BA session", sdata->name);
-#endif
+        if (unlikely(!skb))
                 return;
-        }
+
         ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
         memcpy(&ra_tid->ra, ra, ETH_ALEN);
         ra_tid->tid = tid;
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 267ed45ef6a2..569609b94c8c 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -297,6 +297,9 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
         char *buf = kzalloc(mxln, GFP_KERNEL);
         int sf = 0; /* how many written so far */
 
+        if (!buf)
+                return 0;
+
         sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
                 sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 7cfc286946c0..2b9b52c69569 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -186,12 +186,8 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
         u16 params;
 
         skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
-
-        if (!skb) {
-                printk(KERN_ERR "%s: failed to allocate buffer "
-                                        "for delba frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
 
         skb_reserve(skb, local->hw.extra_tx_headroom);
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 28ab510e621a..65acbf5eed2d 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -200,10 +200,9 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
         }
 
         p = kmem_cache_alloc(rm_cache, GFP_ATOMIC);
-        if (!p) {
-                printk(KERN_DEBUG "o11s: could not allocate RMC entry\n");
+        if (!p)
                 return 0;
-        }
+
         p->seqnum = seqnum;
         p->exp_time = jiffies + RMC_TIMEOUT;
         memcpy(p->sa, sa, ETH_ALEN);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 60a6f273cd30..fb2f0f986de7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -271,11 +271,9 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
         struct ieee80211_mgmt *mgmt;
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for "
-                       "deauth/disassoc frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
@@ -354,11 +352,9 @@ static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
                 return;
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for 4addr "
-                       "nullfunc frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
@@ -2441,11 +2437,8 @@ static int ieee80211_pre_assoc(struct ieee80211_sub_if_data *sdata,
         int err;
 
         sta = sta_info_alloc(sdata, bssid, GFP_KERNEL);
-        if (!sta) {
-                printk(KERN_DEBUG "%s: failed to alloc STA entry for"
-                           " the AP\n", sdata->name);
+        if (!sta)
                 return -ENOMEM;
-        }
 
         sta->dummy = true;
 
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 7733f66ee2c4..578eea3fc04d 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -32,12 +32,8 @@ static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_da
 
         skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
                                 sizeof(struct ieee80211_msrment_ie));
-
-        if (!skb) {
-                printk(KERN_ERR "%s: failed to allocate buffer for "
-                                "measurement report frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
 
         skb_reserve(skb, local->hw.extra_tx_headroom);
         msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 01072639666f..c9766ccb51a4 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2365,11 +2365,9 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
         local = sdata->local;
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*pspoll));
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for "
-                       "pspoll template\n", sdata->name);
+        if (!skb)
                 return NULL;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         pspoll = (struct ieee80211_pspoll *) skb_put(skb, sizeof(*pspoll));
@@ -2405,11 +2403,9 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
         local = sdata->local;
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*nullfunc));
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
-                       "template\n", sdata->name);
+        if (!skb)
                 return NULL;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         nullfunc = (struct ieee80211_hdr_3addr *) skb_put(skb,
@@ -2444,11 +2440,8 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*hdr) +
                             ie_ssid_len + ie_len);
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-                       "request template\n", sdata->name);
+        if (!skb)
                 return NULL;
-        }
 
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ce916ff6ef08..1c1080274730 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -707,11 +707,9 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom +
                             sizeof(*mgmt) + 6 + extra_len);
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
-                       "frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
@@ -864,11 +862,8 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 
         /* FIXME: come up with a proper value */
         buf = kmalloc(200 + ie_len, GFP_KERNEL);
-        if (!buf) {
-                printk(KERN_DEBUG "%s: failed to allocate temporary IE "
-                       "buffer\n", sdata->name);
+        if (!buf)
                 return NULL;
-        }
 
         /*
          * Do not send DS Channel parameter for directed probe requests
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index 380b9a7462b6..bac34394c05e 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -229,11 +229,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
                         wk->ie_len + /* extra IEs */
                         9, /* WMM */
                         GFP_KERNEL);
-        if (!skb) {
-                printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
-                       "frame\n", sdata->name);
+        if (!skb)
                 return;
-        }
+
         skb_reserve(skb, local->hw.extra_tx_headroom);
 
         capab = WLAN_CAPABILITY_ESS;