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r8169: avoid needless NAPI poll scheduling
Theory : though needless, it should not have hurt. Practice: it does not play nice with DEBUG_SHIRQ + LOCKDEP + UP (see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242572). The patch makes sense in itself but I should dig why it has an effect on #242572 (assuming that NAPI do not change in a near future). Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Edward Hsu <edward_hsu@realtek.com.tw>
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@ -2767,15 +2767,17 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
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rtl8169_check_link_status(dev, tp, ioaddr);
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#ifdef CONFIG_R8169_NAPI
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if (status & tp->napi_event) {
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RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
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tp->intr_mask = ~tp->napi_event;
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if (likely(netif_rx_schedule_prep(dev)))
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__netif_rx_schedule(dev);
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else if (netif_msg_intr(tp)) {
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printk(KERN_INFO "%s: interrupt %04x taken in poll\n",
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printk(KERN_INFO "%s: interrupt %04x in poll\n",
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dev->name, status);
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}
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}
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break;
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#else
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/* Rx interrupt */
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