Re: [PATCH] scsi: hisi_sas: display correct proc_name in sysfs

[John Garry]

On 12/05/2020 11:30, Jason Yan wrote:
> å 2020/5/12 18:00, John Garry åé:
> > On 12/05/2020 10:35, Jason Yan wrote:
> > > å 2020/5/12 16:23, John Garry åé:
> > > > 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
> > [ÂÂÂ 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@xxxxxxxxxx>

And the $subject is not right. It should be simply "display proc_name in 
sysfs".

Thanks,
John