On 3/4/2016 3:06 AM, Fugang Duan wrote:
> From: Troy Kisky <troy.ki...@boundarydevices.com> Sent: Thursday, February
> 25, 2016 8:37 AM
>> To: netdev@vger.kernel.org; da...@davemloft.net; b38...@freescale.com
>> Cc: fabio.este...@freescale.com; l.st...@pengutronix.de; and...@lunn.ch;
>> trem...@gmail.com; li...@arm.linux.org.uk; linux-arm-
>> ker...@lists.infradead.org; l...@boundarydevices.com; shawn...@kernel.org;
>> johan...@sipsolutions.net; stillcompil...@gmail.com;
>> sergei.shtyl...@cogentembedded.com; a...@arndb.de; Troy Kisky
>> <troy.ki...@boundarydevices.com>
>> Subject: [PATCH net-next V2 13/16] net: fec: print more debug info in
>> fec_timeout
>>
>> Print the current interrupt flags and mask and the interrupt state during
>> the last
>> interrupt in fec_timeout.
>>
>> Signed-off-by: Troy Kisky <troy.ki...@boundarydevices.com>
>> ---
>> drivers/net/ethernet/freescale/fec.h | 1 +
>> drivers/net/ethernet/freescale/fec_main.c | 4 ++++
>> 2 files changed, 5 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/freescale/fec.h
>> b/drivers/net/ethernet/freescale/fec.h
>> index 001200b..615cca1 100644
>> --- a/drivers/net/ethernet/freescale/fec.h
>> +++ b/drivers/net/ethernet/freescale/fec.h
>> @@ -506,6 +506,7 @@ struct fec_enet_private {
>> unsigned int total_tx_ring_size;
>> unsigned int total_rx_ring_size;
>> uint events;
>> + uint last_ievents;
>>
>> struct platform_device *pdev;
>>
>> diff --git a/drivers/net/ethernet/freescale/fec_main.c
>> b/drivers/net/ethernet/freescale/fec_main.c
>> index afd4060..9a3136b 100644
>> --- a/drivers/net/ethernet/freescale/fec_main.c
>> +++ b/drivers/net/ethernet/freescale/fec_main.c
>> @@ -1107,6 +1107,9 @@ fec_timeout(struct net_device *ndev)
>> int i;
>> uint events = 0;
>>
>> + pr_err("%s: last=%x %x, mask %x\n", __func__, fep->last_ievents,
>> + readl(fep->hwp + FEC_IEVENT), readl(fep->hwp + FEC_IMASK));
>> +
> pr_err() -> netdev_err()
>
Sounds good
