linux-kernel - Re: [PATCH] scsi: trace: change the rtn log in hex format

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Message-ID: <05ed82f7-7a13-4f2a-aee2-cc21e509d41f@quicinc.com>
Date: Thu, 8 May 2025 09:21:55 +0800
From: Kassey Li quic <quic_yingangl@...cinc.com>
To: Steven Rostedt <rostedt@...dmis.org>
CC: <mhiramat@...nel.org>, <mathieu.desnoyers@...icios.com>,
        <linux-kernel@...r.kernel.org>, <linux-trace-kernel@...r.kernel.org>,
        <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH] scsi: trace: change the rtn log in hex format



On 2025/5/7 23:54, Steven Rostedt wrote:
> On Wed, 7 May 2025 15:07:14 +0800
> Kassey Li <quic_yingangl@...cinc.com> wrote:
> 
> 
> This patch is fine with me, but it needs to go through the scsi maintainers.
> 
> I don't see them Cc'd.
hi, Steve:
     Thanks for the comment.
     add linux-scsi@...r.kernel.org to cc with the review history info.

     if you want to me to re-send again with more cc (scsi) , please let 
me know.

BR
Kassey 	


> 
> -- Steve
> 
> 
>> In default it showed rtn in decimal.
>>
>> kworker/3:1H-183 [003] ....  51.035474: scsi_dispatch_cmd_error: host_no=0 channel=0 id=0 lun=4 data_sgl=1  prot_sgl=0 prot_op=SCSI_PROT_NORMAL cmnd=(READ_10 lba=3907214  txlen=1 protect=0 raw=28 00 00 3b 9e 8e 00 00 01 00) rtn=4181
>>
>> In source code we define these possible value as hexadecimal:
>>
>> include/scsi/scsi.h
>>
>> SCSI_MLQUEUE_HOST_BUSY   0x1055
>> SCSI_MLQUEUE_DEVICE_BUSY 0x1056
>> SCSI_MLQUEUE_EH_RETRY    0x1057
>> SCSI_MLQUEUE_TARGET_BUSY 0x1058
>>
>> This change converts the rtn in hexadecimal.
>>
>> Signed-off-by: Kassey Li <quic_yingangl@...cinc.com>
>> ---
>>   include/trace/events/scsi.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
>> index bf6cc98d9122..a4c089ac834c 100644
>> --- a/include/trace/events/scsi.h
>> +++ b/include/trace/events/scsi.h
>> @@ -240,7 +240,7 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
>>   
>>   	TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
>>   		  " prot_op=%s driver_tag=%d scheduler_tag=%d cmnd=(%s %s raw=%s)" \
>> -		  " rtn=%d",
>> +		  " rtn=0x%x",
>>   		  __entry->host_no, __entry->channel, __entry->id,
>>   		  __entry->lun, __entry->data_sglen, __entry->prot_sglen,
>>   		  show_prot_op_name(__entry->prot_op), __entry->driver_tag,
>