cfg80211: let ieee80211_amsdu_to_8023s() take only header-less SKB

There's only a single case where has_80211_header is passed as true,
which is in mac80211. Given that there's only simple code that needs
to be done before calling it, export that function from cfg80211
instead and let mac80211 call it itself.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 5 insertions, 19 deletions

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 8edce22d1b93..e36ede840b88 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -420,8 +420,8 @@ unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
 }
 EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
 
-static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
-                                    const u8 *addr, enum nl80211_iftype iftype)
+int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
+                                  const u8 *addr, enum nl80211_iftype iftype)
 {
         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
         struct {
@@ -525,13 +525,7 @@ static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
 
         return 0;
 }
-
-int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
-                           enum nl80211_iftype iftype)
-{
-        return __ieee80211_data_to_8023(skb, NULL, addr, iftype);
-}
-EXPORT_SYMBOL(ieee80211_data_to_8023);
+EXPORT_SYMBOL(ieee80211_data_to_8023_exthdr);
 
 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
                              enum nl80211_iftype iftype,
@@ -745,25 +739,18 @@ __ieee80211_amsdu_copy(struct sk_buff *skb, unsigned int hlen,
 
 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
                               const u8 *addr, enum nl80211_iftype iftype,
-                              const unsigned int extra_headroom,
-                              bool has_80211_header)
+                              const unsigned int extra_headroom)
 {
         unsigned int hlen = ALIGN(extra_headroom, 4);
         struct sk_buff *frame = NULL;
         u16 ethertype;
         u8 *payload;
-        int offset = 0, remaining, err;
+        int offset = 0, remaining;
         struct ethhdr eth;
         bool reuse_frag = skb->head_frag && !skb_has_frag_list(skb);
         bool reuse_skb = false;
         bool last = false;
 
-        if (has_80211_header) {
-                err = __ieee80211_data_to_8023(skb, &eth, addr, iftype);
-                if (err)
-                        goto out;
-        }
-
         while (!last) {
                 unsigned int subframe_len;
                 int len;
@@ -819,7 +806,6 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
 
  purge:
         __skb_queue_purge(list);
- out:
         dev_kfree_skb(skb);
 }
 EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);