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SubjectRe: [PATCH] scsi: hisi_sas: display correct proc_name in sysfs
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在 2020/5/12 19:07, John Garry 写道:
> On 12/05/2020 11:30, Jason Yan wrote:
>>
>>
>> 在 2020/5/12 18:00, John Garry 写道:
>>> On 12/05/2020 10:35, Jason Yan wrote:
>>>>
>>>>
>>>> 在 2020/5/12 16:23, John Garry 写道:
>>>>> On 12/05/2020 07:33, Jason Yan wrote:
>>>>>> The 'proc_name' entry in sysfs for hisi_sas is 'null' now becuase
>>>>>> it is
>>>>>> not initialized in scsi_host_template. It looks like:
>>>>>>
>>>>>> [root@localhost ~]# cat /sys/class/scsi_host/host2/proc_name
>>>>>> (null)
>>>>>>
>>>>>
>>>>> hmmm.. it would be good to tell us what this buys us, apart from
>>>>> the proc_name file.
>>>>>
>>>>
>>>> When there is more than one storage cards(or controllers) in the
>>>> system, I'm tring to find out which host is belong to which card.
>>>> And then I found this in scsi_host in sysfs but the output is
>>>> '(null)' which is odd.
>>>
>>> "dmesg | grep host" would give this info, like:
>>>
>>> root@(none)$ dmesg | grep host0
>>> [    8.877245] scsi host0: hisi_sas_v2_hw
>>>
>>
>> NO, if long time after the system boot, dmesg cannot get this
>> infomation. It is flushed by other logs.
>
>
> ok, so I don't see any other way to currently do this, even though using
> proc_name is a bit suspect, so:
>
> Acked-by: John Garry <john.garry@huawei.com>
>
> And the $subject is not right. It should be simply "display proc_name in
> sysfs".
>

Thanks, will send v2 with right $subject.

Jason

> Thanks,
> John
>
> .

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