From 4e9016bee3bf0c24963097edace034ff205b565c Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Wed, 9 Oct 2019 15:15:07 +0200
Subject: [PATCH] can: rx-offload: can_rx_offload_offload_one(): increment rx_fifo_errors on queue overflow or OOM
Git-commit: 4e9016bee3bf0c24963097edace034ff205b565c
Patch-mainline: v5.4-rc7
References: bsc#1051510
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 bdc27481b57f..e224530a0630 100644
--- a/drivers/net/can/rx-offload.c
+++ b/drivers/net/can/rx-offload.c
@@ -125,8 +125,10 @@ 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;
}
--
2.16.4