36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
From 538020913db04d199ce4d7e845444880e8200b5f Mon Sep 17 00:00:00 2001
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From: John Crispin <john@phrozen.org>
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Date: Tue, 3 May 2016 05:40:38 +0200
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Subject: [PATCH 092/102] net-next: mediatek: remove superfluous queue wake up
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call
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The code checks if the queue should be stopped because we are below the
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threshold of free descriptors only to check if it should be started again.
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If we do end up in a state where we are at the threshold limit, it makes
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more sense to just stop the queue and wait for the next IRQ to trigger the
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TX housekeeping again. There is no rush in enqueuing the next packet, it
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needs to wait for all the others in the queue to be dispatched first
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anyway.
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Signed-off-by: John Crispin <john@phrozen.org>
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---
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drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 ++-----
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1 file changed, 2 insertions(+), 5 deletions(-)
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -795,12 +795,9 @@ static int mtk_start_xmit(struct sk_buff
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if (mtk_tx_map(skb, dev, tx_num, ring, gso) < 0)
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goto drop;
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- if (unlikely(atomic_read(&ring->free_count) <= ring->thresh)) {
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+ if (unlikely(atomic_read(&ring->free_count) <= ring->thresh))
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mtk_stop_queue(eth);
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- if (unlikely(atomic_read(&ring->free_count) >
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- ring->thresh))
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- mtk_wake_queue(eth);
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- }
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+
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spin_unlock_irqrestore(ð->page_lock, flags);
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return NETDEV_TX_OK;
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