Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 030/321] can: rx-offload: can_rx_offload_offload_one(): increment rx_fifo_errors on queue overflow or OOM | Date | Tue, 3 Dec 2019 23:31:36 +0100 |
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From: Marc Kleine-Budde <mkl@pengutronix.de>
[ Upstream commit 4e9016bee3bf0c24963097edace034ff205b565c ]
If the rx-offload skb_queue is full or the skb allocation fails (due to OOM), the mailbox contents is discarded.
This patch adds the incrementing of the rx_fifo_errors statistics counter.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/can/rx-offload.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c index e32b65599a5f2..16af09c71cfed 100644 --- a/drivers/net/can/rx-offload.c +++ b/drivers/net/can/rx-offload.c @@ -134,8 +134,10 @@ static struct sk_buff *can_rx_offload_offload_one(struct can_rx_offload *offload ret = offload->mailbox_read(offload, &cf_overflow, ×tamp, n); - if (ret) + if (ret) { offload->dev->stats.rx_dropped++; + offload->dev->stats.rx_fifo_errors++; + } return NULL; } -- 2.20.1
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