mediatek: bump to v4.9
[openwrt/staging/yousong.git] / target / linux / mediatek / patches-4.4 / 0090-net-next-mediatek-fix-off-by-one-in-the-TX-ring-allo.patch
diff --git a/target/linux/mediatek/patches-4.4/0090-net-next-mediatek-fix-off-by-one-in-the-TX-ring-allo.patch b/target/linux/mediatek/patches-4.4/0090-net-next-mediatek-fix-off-by-one-in-the-TX-ring-allo.patch
deleted file mode 100644 (file)
index b6f32fc..0000000
+++ /dev/null
@@ -1,36 +0,0 @@
-From 94425de9ede5ef0eafbfced65140c30e7c0b6c0d Mon Sep 17 00:00:00 2001
-From: John Crispin <john@phrozen.org>
-Date: Tue, 3 May 2016 03:01:13 +0200
-Subject: [PATCH 090/102] net-next: mediatek: fix off by one in the TX ring
- allocation
-
-The TX ring setup has an off by one error causing it to not utilise all
-descriptors. This has the side effect that we need to reset the next
-pointer at runtime to make it work. Fix the off by one and remove the
-code fixing the ring at runtime.
-
-Signed-off-by: Sean Wang <keyhaede@gmail.com>
-Signed-off-by: John Crispin <john@phrozen.org>
----
- drivers/net/ethernet/mediatek/mtk_eth_soc.c |    3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -934,7 +934,6 @@ static int mtk_poll_tx(struct mtk_eth *e
-               }
-               mtk_tx_unmap(eth->dev, tx_buf);
--              ring->last_free->txd2 = next_cpu;
-               ring->last_free = desc;
-               atomic_inc(&ring->free_count);
-@@ -1042,7 +1041,7 @@ static int mtk_tx_alloc(struct mtk_eth *
-       atomic_set(&ring->free_count, MTK_DMA_SIZE - 2);
-       ring->next_free = &ring->dma[0];
--      ring->last_free = &ring->dma[MTK_DMA_SIZE - 2];
-+      ring->last_free = &ring->dma[MTK_DMA_SIZE - 1];
-       ring->thresh = MAX_SKB_FRAGS;
-       /* make sure that all changes to the dma ring are flushed before we