diff options
Diffstat (limited to 'package/kernel/mac80211/patches/319-mac80211-avoid-extra-memcpy-in-A-MSDU-head-creation.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/319-mac80211-avoid-extra-memcpy-in-A-MSDU-head-creation.patch | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/package/kernel/mac80211/patches/319-mac80211-avoid-extra-memcpy-in-A-MSDU-head-creation.patch b/package/kernel/mac80211/patches/319-mac80211-avoid-extra-memcpy-in-A-MSDU-head-creation.patch deleted file mode 100644 index 4668226530..0000000000 --- a/package/kernel/mac80211/patches/319-mac80211-avoid-extra-memcpy-in-A-MSDU-head-creation.patch +++ /dev/null @@ -1,56 +0,0 @@ -From: Michael Braun <michael-dev@fami-braun.de> -Date: Sat, 15 Oct 2016 13:28:18 +0200 -Subject: [PATCH] mac80211: avoid extra memcpy in A-MSDU head creation - -Signed-off-by: Michael Braun <michael-dev@fami-braun.de> -Signed-off-by: Johannes Berg <johannes.berg@intel.com> ---- - ---- a/net/mac80211/tx.c -+++ b/net/mac80211/tx.c -@@ -3069,11 +3069,11 @@ static bool ieee80211_amsdu_prepare_head - struct ieee80211_local *local = sdata->local; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr; -- struct ethhdr amsdu_hdr; -+ struct ethhdr *amsdu_hdr; - int hdr_len = fast_tx->hdr_len - sizeof(rfc1042_header); - int subframe_len = skb->len - hdr_len; - void *data; -- u8 *qc; -+ u8 *qc, *h_80211_src, *h_80211_dst; - - if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) - return false; -@@ -3081,19 +3081,22 @@ static bool ieee80211_amsdu_prepare_head - if (info->control.flags & IEEE80211_TX_CTRL_AMSDU) - return true; - -- if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(amsdu_hdr), -+ if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr), - &subframe_len)) - return false; - -- amsdu_hdr.h_proto = cpu_to_be16(subframe_len); -- memcpy(amsdu_hdr.h_source, skb->data + fast_tx->sa_offs, ETH_ALEN); -- memcpy(amsdu_hdr.h_dest, skb->data + fast_tx->da_offs, ETH_ALEN); -- -- data = skb_push(skb, sizeof(amsdu_hdr)); -- memmove(data, data + sizeof(amsdu_hdr), hdr_len); -- memcpy(data + hdr_len, &amsdu_hdr, sizeof(amsdu_hdr)); -- -+ data = skb_push(skb, sizeof(*amsdu_hdr)); -+ memmove(data, data + sizeof(*amsdu_hdr), hdr_len); - hdr = data; -+ amsdu_hdr = data + hdr_len; -+ /* h_80211_src/dst is addr* field within hdr */ -+ h_80211_src = data + fast_tx->sa_offs; -+ h_80211_dst = data + fast_tx->da_offs; -+ -+ amsdu_hdr->h_proto = cpu_to_be16(subframe_len); -+ ether_addr_copy(amsdu_hdr->h_source, h_80211_src); -+ ether_addr_copy(amsdu_hdr->h_dest, h_80211_dst); -+ - qc = ieee80211_get_qos_ctl(hdr); - *qc |= IEEE80211_QOS_CTL_A_MSDU_PRESENT; - |