packages: clean up the package folder

[openwrt/openwrt.git] / package / mac80211 / patches / 606-rt2x00_no_realign.patch

diff --git a/package/mac80211/patches/606-rt2x00_no_realign.patch b/package/mac80211/patches/606-rt2x00_no_realign.patch
deleted file mode 100644 (file)
index 9608df2..0000000
--- a/package/mac80211/patches/606-rt2x00_no_realign.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-[RFC] rt2x00: For drivers that only need L2 padding don't realign frames
-
-Signed-off-by: Helmut Schaa <helmut.schaa@...>
----
-
-Ivo, Gertjan, do you remeber by any chance why this alignment stuff was added
-in the first place? Was it because of DMA restrictions?
-
-While doing some profiling on the rt3052 SoC I noticed that 30-40% time was
-spent in memmove calls. And the culprit is the memmove aligning the payload
-to a 4byte boundary since that has to move a whole bunch of data.
-
-Interesstingly the legacy drivers insert an l2pad between the header and the
-payload but doesn't realign the payload itself to a 4-byte boundary. Hence,
-I came up with this patch and indeed CPU usage improves impressively.
-
-Only tested on rt2800pci!
-
-Thanks,
-Helmut
-
- drivers/net/wireless/rt2x00/rt2x00queue.c |   30 +++-------------------------
- 1 files changed, 4 insertions(+), 26 deletions(-)
-
---- a/drivers/net/wireless/rt2x00/rt2x00queue.c
-+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
-@@ -163,36 +163,14 @@ void rt2x00queue_align_frame(struct sk_b
- void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length)
- {
-       unsigned int payload_length = skb->len - header_length;
--      unsigned int header_align = ALIGN_SIZE(skb, 0);
--      unsigned int payload_align = ALIGN_SIZE(skb, header_length);
-       unsigned int l2pad = payload_length ? L2PAD_SIZE(header_length) : 0;
- 
--      /*
--       * Adjust the header alignment if the payload needs to be moved more
--       * than the header.
--       */
--      if (payload_align > header_align)
--              header_align += 4;
--
--      /* There is nothing to do if no alignment is needed */
--      if (!header_align)
-+      if (!l2pad)
-               return;
- 
--      /* Reserve the amount of space needed in front of the frame */
--      skb_push(skb, header_align);
--
--      /*
--       * Move the header.
--       */
--      memmove(skb->data, skb->data + header_align, header_length);
--
--      /* Move the payload, if present and if required */
--      if (payload_length && payload_align)
--              memmove(skb->data + header_length + l2pad,
--                      skb->data + header_length + l2pad + payload_align,
--                      payload_length);
--
--      /* Trim the skb to the correct size */
-+      /* insert l2pad -> Move header */
-+      skb_push(skb, l2pad);
-+      memmove(skb->data, skb->data + l2pad, header_length);
-       skb_trim(skb, header_length + l2pad + payload_length);
- }
-