diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-12-04 12:16:31 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-12-04 12:17:50 +0400 |
| commit | 9e890a1f21c626cec3a8955814d36ea1879bdde6 (patch) | |
| tree | 1389d219204515631ebf1bc664c5d0a4802ef5ab /net/mac80211 | |
| parent | 33dde2bfe8ca97bdd8253bc0496482b048fa0b32 (diff) | |
| download | linux-9e890a1f21c626cec3a8955814d36ea1879bdde6.tar.xz | |
mac80211: neaten ieee80211_deliver_skb
Remove the unnecessary duplicate test of "if (skb) {"
when !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS.
Remove now unnecessary __maybe_unused, neaten comment
Remove unnecessary parenthesis around align cast.
Substitute reference to deprecated compare_ether_addr
with ether_addr_equal (in the comment.)
Signed-off-by: Joe Perches <joe@perches.com>
[edit commit log slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/rx.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 5cf7285f6df9..1892f883bd7f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1962,19 +1962,17 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) } } - if (skb) { #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS - /* - * 'align' will only take the values 0 or 2 here - * since all frames are required to be aligned - * to 2-byte boundaries when being passed to - * mac80211; the code here works just as well if - * that isn't true, but mac80211 assumes it can - * access fields as 2-byte aligned (e.g. for - * compare_ether_addr) + if (skb) { + /* 'align' will only take the values 0 or 2 here since all + * frames are required to be aligned to 2-byte boundaries + * when being passed to mac80211; the code here works just + * as well if that isn't true, but mac80211 assumes it can + * access fields as 2-byte aligned (e.g. for ether_addr_equal) */ - int align = ((unsigned long)(skb->data + - sizeof(struct ethhdr))) & 3; + int align; + + align = (unsigned long)(skb->data + sizeof(struct ethhdr)) & 3; if (align) { if (WARN_ON(skb_headroom(skb) < 3)) { dev_kfree_skb(skb); @@ -1987,14 +1985,14 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) skb_set_tail_pointer(skb, len); } } + } #endif - if (skb) { - /* deliver to local stack */ - skb->protocol = eth_type_trans(skb, dev); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_receive_skb(skb); - } + if (skb) { + /* deliver to local stack */ + skb->protocol = eth_type_trans(skb, dev); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_receive_skb(skb); } if (xmit_skb) { |