From eece71e8fb0953e18e3ac631b4414bb21af924a7 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Wed, 29 Jun 2016 13:38:09 +0200 Subject: [PATCH] net-next: mediatek: don't use intermediate variables to store IRQ masks The code currently uses variables to store and never modify the bit masks of interrupts. This is legacy code from an early version of the driver that supported MIPS based SoCs where the IRQ bits depended on the actual SoC. As the bits are the same for all ARM based SoCs using this driver we can remove the intermediate variables. Signed-off-by: John Crispin Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 22 ++++++++++----------- 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 5a3a4e945374..d6c3a17a0d5c 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -794,7 +794,7 @@ drop: } static int mtk_poll_rx(struct napi_struct *napi, int budget, - struct mtk_eth *eth, u32 rx_intr) + struct mtk_eth *eth) { struct mtk_rx_ring *ring = ð->rx_ring; int idx = ring->calc_idx; @@ -882,7 +882,7 @@ release_desc: } if (done < budget) - mtk_w32(eth, rx_intr, MTK_QMTK_INT_STATUS); + mtk_w32(eth, MTK_RX_DONE_INT, MTK_QMTK_INT_STATUS); return done; } @@ -967,28 +967,26 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget, bool *tx_again) static int mtk_poll(struct napi_struct *napi, int budget) { struct mtk_eth *eth = container_of(napi, struct mtk_eth, rx_napi); - u32 status, status2, mask, tx_intr, rx_intr, status_intr; + u32 status, status2, mask; int tx_done, rx_done; bool tx_again = false; status = mtk_r32(eth, MTK_QMTK_INT_STATUS); status2 = mtk_r32(eth, MTK_INT_STATUS2); - tx_intr = MTK_TX_DONE_INT; - rx_intr = MTK_RX_DONE_INT; - status_intr = (MTK_GDM1_AF | MTK_GDM2_AF); tx_done = 0; rx_done = 0; tx_again = 0; - if (status & tx_intr) + if (status & MTK_TX_DONE_INT) tx_done = mtk_poll_tx(eth, budget, &tx_again); - if (status & rx_intr) - rx_done = mtk_poll_rx(napi, budget, eth, rx_intr); + if (status & MTK_RX_DONE_INT) + rx_done = mtk_poll_rx(napi, budget, eth); - if (unlikely(status2 & status_intr)) { + if (unlikely(status2 & (MTK_GDM1_AF | MTK_GDM2_AF))) { mtk_stats_update(eth); - mtk_w32(eth, status_intr, MTK_INT_STATUS2); + mtk_w32(eth, (MTK_GDM1_AF | MTK_GDM2_AF), + MTK_INT_STATUS2); } if (unlikely(netif_msg_intr(eth))) { @@ -1006,7 +1004,7 @@ static int mtk_poll(struct napi_struct *napi, int budget) return budget; napi_complete(napi); - mtk_irq_enable(eth, tx_intr | rx_intr); + mtk_irq_enable(eth, MTK_RX_DONE_INT | MTK_RX_DONE_INT); return rx_done; } -- 2.39.5