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Date: Fri, 15 Jul 2011 13:28:26 +0200 From: Michael Thalmeier <Michael.Thalmeier@...matek.at> To: Florian Fainelli <florian@...nwrt.org> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, michael@...lmeier.at, Michael Thalmeier <Michael.Thalmeier@...matek.at> Subject: [PATCH 1/1] r6040: only disable RX interrupt if napi_schedule_prep is successful When receiving the first RX interrupt before the internal call to napi_schedule_prep is successful the RX interrupt gets disabled and is never enabled again as the poll function never gets executed. Signed-off-by: Michael Thalmeier <Michael.Thalmeier@...matek.at> --- drivers/net/r6040.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c index 200a363..0ffec46 100644 --- a/drivers/net/r6040.c +++ b/drivers/net/r6040.c @@ -677,9 +677,11 @@ static irqreturn_t r6040_interrupt(int irq, void *dev_id) if (status & RX_FIFO_FULL) dev->stats.rx_fifo_errors++; - /* Mask off RX interrupt */ - misr &= ~RX_INTS; - napi_schedule(&lp->napi); + if (likely(napi_schedule_prep(&lp->napi))) { + /* Mask off RX interrupt */ + misr &= ~RX_INTS; + __napi_schedule(&lp->napi); + } } /* TX interrupt request */ -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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