net: ethernet: ti: cpsw: fix extra rx interrupt
[ Upstream commit5.4-rM2-2.2.x-imx-squashed51302f77be
] Now RX interrupt is triggered twice every time, because in cpsw_rx_interrupt() it is asked first and then disabled. So there will be pending interrupt always, when RX interrupt is enabled again in NAPI handler. Fix it by first disabling IRQ and then do ask. Fixes:870915feab
("drivers: net: cpsw: remove disable_irq/enable_irq as irq can be masked from cpsw itself") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
0706bfdfa7
commit
5fc9fc7aac
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@ -890,8 +890,8 @@ static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
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{
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struct cpsw_common *cpsw = dev_id;
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cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_RX);
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writel(0, &cpsw->wr_regs->rx_en);
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cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_RX);
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if (cpsw->quirk_irq) {
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disable_irq_nosync(cpsw->irqs_table[0]);
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