From 40cbd88be702a2455b6e047dc13f5d51ed542063 Mon Sep 17 00:00:00 2001 From: Lior David Date: Mon, 28 Aug 2017 22:18:41 +0300 Subject: wil6210: ratelimit errors in TX/RX interrupts Sometimes there is a firmware crash but the hardware is not fully stopped and continue to send TX/RX interrupts. This can cause an overload of messages which can bring the host down. Add ratelimit to these error messages to fix this. Signed-off-by: Lior David Signed-off-by: Maya Erez Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/wil6210/interrupt.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c index cad8a95c4e4e..59def4f3fcf3 100644 --- a/drivers/net/wireless/ath/wil6210/interrupt.c +++ b/drivers/net/wireless/ath/wil6210/interrupt.c @@ -244,7 +244,7 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie) wil_dbg_irq(wil, "ISR RX 0x%08x\n", isr); if (unlikely(!isr)) { - wil_err(wil, "spurious IRQ: RX\n"); + wil_err_ratelimited(wil, "spurious IRQ: RX\n"); return IRQ_NONE; } @@ -269,11 +269,12 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie) need_unmask = false; napi_schedule(&wil->napi_rx); } else { - wil_err(wil, + wil_err_ratelimited( + wil, "Got Rx interrupt while stopping interface\n"); } } else { - wil_err(wil, "Got Rx interrupt while in reset\n"); + wil_err_ratelimited(wil, "Got Rx interrupt while in reset\n"); } } @@ -302,7 +303,7 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie) wil_dbg_irq(wil, "ISR TX 0x%08x\n", isr); if (unlikely(!isr)) { - wil_err(wil, "spurious IRQ: TX\n"); + wil_err_ratelimited(wil, "spurious IRQ: TX\n"); return IRQ_NONE; } @@ -318,12 +319,13 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie) need_unmask = false; napi_schedule(&wil->napi_tx); } else { - wil_err(wil, "Got Tx interrupt while in reset\n"); + wil_err_ratelimited(wil, "Got Tx interrupt while in reset\n"); } } if (unlikely(isr)) - wil_err(wil, "un-handled TX ISR bits 0x%08x\n", isr); + wil_err_ratelimited(wil, "un-handled TX ISR bits 0x%08x\n", + isr); /* Tx IRQ will be enabled when NAPI processing finished */ -- cgit v1.2.3