3b15089249
This commit backports patches from OpenWrt's master branch which increase cache performance, reduce NAPI weight and fix bugs.
27 lines
1.1 KiB
Diff
27 lines
1.1 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Tue, 5 Dec 2017 14:23:59 +0100
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Subject: ar71xx: only access device stats in tx handler if packets were processed
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
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index 1cb590fad044d54fe1cfd0e765aa43ee981ae9c1..6a8558284ed6a1feb1fddfe2875ba182c78a95d4 100644
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--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
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+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
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@@ -1006,12 +1006,12 @@ static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
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DBG("%s: %d packets sent out\n", ag->dev->name, sent);
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- ag->dev->stats.tx_bytes += bytes_compl;
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- ag->dev->stats.tx_packets += sent;
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-
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if (!sent)
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return 0;
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+ ag->dev->stats.tx_bytes += bytes_compl;
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+ ag->dev->stats.tx_packets += sent;
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+
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netdev_completed_queue(ag->dev, sent, bytes_compl);
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if ((ring->curr - ring->dirty) < (ring_size * 3) / 4)
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netif_wake_queue(ag->dev);
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