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83 lines
2.6 KiB
Diff
83 lines
2.6 KiB
Diff
From 441d87495f33fd444a2b2a16f6df07892dac3f89 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 04:12:35 +0200
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Subject: [PATCH 094/102] net-next: mediatek: don't use intermediate variables
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to store IRQ masks
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The code currently uses variables to store and never modify the bit masks
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of interrupts. This is legacy code from an early version of the driver
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that supported MIPS based SoCs where the IRQ bits depended on the actual
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SoC. As the bits are the same for all ARM based SoC using this driver we
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can remove the intermediate variables.
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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 | 22 ++++++++++------------
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1 file changed, 10 insertions(+), 12 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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@@ -806,7 +806,7 @@ drop:
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}
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static int mtk_poll_rx(struct napi_struct *napi, int budget,
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- struct mtk_eth *eth, u32 rx_intr)
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+ struct mtk_eth *eth)
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{
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struct mtk_rx_ring *ring = ð->rx_ring;
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int idx = ring->calc_idx;
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@@ -894,7 +894,7 @@ release_desc:
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}
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if (done < budget)
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- mtk_w32(eth, rx_intr, MTK_QMTK_INT_STATUS);
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+ mtk_w32(eth, MTK_RX_DONE_INT, MTK_QMTK_INT_STATUS);
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return done;
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}
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@@ -977,28 +977,26 @@ static int mtk_poll_tx(struct mtk_eth *e
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static int mtk_poll(struct napi_struct *napi, int budget)
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{
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struct mtk_eth *eth = container_of(napi, struct mtk_eth, rx_napi);
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- u32 status, status2, mask, tx_intr, rx_intr, status_intr;
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+ u32 status, status2, mask;
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int tx_done, rx_done;
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bool tx_again = false;
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status = mtk_r32(eth, MTK_QMTK_INT_STATUS);
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status2 = mtk_r32(eth, MTK_INT_STATUS2);
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- tx_intr = MTK_TX_DONE_INT;
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- rx_intr = MTK_RX_DONE_INT;
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- status_intr = (MTK_GDM1_AF | MTK_GDM2_AF);
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tx_done = 0;
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rx_done = 0;
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tx_again = 0;
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- if (status & tx_intr)
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+ if (status & MTK_TX_DONE_INT)
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tx_done = mtk_poll_tx(eth, budget, &tx_again);
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- if (status & rx_intr)
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- rx_done = mtk_poll_rx(napi, budget, eth, rx_intr);
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+ if (status & MTK_RX_DONE_INT)
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+ rx_done = mtk_poll_rx(napi, budget, eth);
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- if (unlikely(status2 & status_intr)) {
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+ if (unlikely(status2 & (MTK_GDM1_AF | MTK_GDM2_AF))) {
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mtk_stats_update(eth);
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- mtk_w32(eth, status_intr, MTK_INT_STATUS2);
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+ mtk_w32(eth, (MTK_GDM1_AF | MTK_GDM2_AF),
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+ MTK_INT_STATUS2);
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}
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if (unlikely(netif_msg_intr(eth))) {
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@@ -1016,7 +1014,7 @@ static int mtk_poll(struct napi_struct *
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return budget;
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napi_complete(napi);
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- mtk_irq_enable(eth, tx_intr | rx_intr);
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+ mtk_irq_enable(eth, MTK_RX_DONE_INT | MTK_RX_DONE_INT);
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return rx_done;
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}
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