linux-kernel - Re: [PATCH] scsi: libsas: Fix disk not being scanned in after being removed

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Date: Tue, 27 Feb 2024 09:06:19 +0000
From: John Garry <john.g.garry@...cle.com>
To: Jason Yan <yanaijie@...wei.com>, yangxingui <yangxingui@...wei.com>,
        jejb@...ux.ibm.com, martin.petersen@...cle.com,
        damien.lemoal@...nsource.wdc.com
Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com, prime.zeng@...ilicon.com,
        chenxiang66@...ilicon.com, kangfenglong@...wei.com
Subject: Re: [PATCH] scsi: libsas: Fix disk not being scanned in after being
 removed

On 27/02/2024 07:16, Jason Yan wrote:
>>>
>>> Can we directly set phy->negotiated_linkrate = SAS_PHY_DISABLED here? 
>>> For an empty PHY the other variables means nothing, so why bother get 
>>> and update them?
>> The value of the negotiated link rate has two possible values in the 
>> current processing branch: SAS_LINK_RATE_UNKNOWN and SAS_PHY_DISABLED, 
>> and both come from disc_resp. If we do not use disc_resp, but set a 
>> fixed value SAS_PHY_DISABLED for it, it may not be appropriate.

But we know that the phy is disabled, right? It's our phy, isn't it?

Thanks,
John