target/linux/mediatek/patches-4.4/0066-net-mediatek-mtk_cal_txd_req-returns-bad-value.patch

   1 From 1212704e8270f0e673e10a49960318ade0096cf9 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Tue, 22 Mar 2016 04:42:27 +0100
   4 Subject: [PATCH 66/81] net: mediatek: mtk_cal_txd_req() returns bad value
   5
   6 The code used to also support the PDMA engine, which had 2 packet pointers
   7 per descriptor. Because of this we have to divide the result by 2 and round
   8 it up. This is no longer needed as the code only supports QDMA.
   9
  10 Signed-off-by: John Crispin <blogic@openwrt.org>
  11 ---
  12  drivers/net/ethernet/mediatek/mtk_eth_soc.c |    2 +-
  13  1 file changed, 1 insertion(+), 1 deletion(-)
  14
  15 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  16 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  17 @@ -681,7 +681,7 @@ static inline int mtk_cal_txd_req(struct
  18                 nfrags += skb_shinfo(skb)->nr_frags;
  19         }
  20
  21 -       return DIV_ROUND_UP(nfrags, 2);
  22 +       return nfrags;
  23  }
  24
  25  static int mtk_start_xmit(struct sk_buff *skb, struct net_device *dev)