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Date:   Thu, 21 May 2020 15:00:10 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     <akiyano@...zon.com>
Cc:     <davem@...emloft.net>, <netdev@...r.kernel.org>, <dwmw@...zon.com>,
        <zorik@...zon.com>, <matua@...zon.com>, <saeedb@...zon.com>,
        <msw@...zon.com>, <aliguori@...zon.com>, <nafea@...zon.com>,
        <gtzalik@...zon.com>, <netanel@...zon.com>, <alisaidi@...zon.com>,
        <benh@...zon.com>, <ndagan@...zon.com>, <shayagr@...zon.com>,
        <sameehj@...zon.com>
Subject: Re: [PATCH V1 net-next 05/15] net: ena: add prints to failed
 commands

On Thu, 21 May 2020 22:08:24 +0300 akiyano@...zon.com wrote:
> diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
> index a014f514c069..f0b90e1551a3 100644
> --- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
> +++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
> @@ -175,8 +175,10 @@ static int ena_com_close_bounce_buffer(struct ena_com_io_sq *io_sq)
>  	if (pkt_ctrl->idx) {
>  		rc = ena_com_write_bounce_buffer_to_dev(io_sq,
>  							pkt_ctrl->curr_bounce_buf);
> -		if (unlikely(rc))
> +		if (unlikely(rc)) {
> +			pr_err("failed to write bounce buffer to device\n");

Could you use dev_err() or even better netdev_err() to give users an
idea which device is misbehaving?

>  			return rc;
> +		}
>  
>  		pkt_ctrl->curr_bounce_buf =
>  			ena_com_get_next_bounce_buffer(&io_sq->bounce_buf_ctrl);

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