linux-kernel - Re: [PATCH v3 10/11] iommu/vt-d: Use device_domain

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Message-ID: <94c67e49-4604-e296-fa1a-e1105d67c5fd@linux.intel.com>
Date:   Fri, 1 Jul 2022 17:12:25 +0800
From:   Baolu Lu <baolu.lu@...ux.intel.com>
To:     "Tian, Kevin" <kevin.tian@...el.com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>
Cc:     baolu.lu@...ux.intel.com, "Raj, Ashok" <ashok.raj@...el.com>,
        "Liu, Yi L" <yi.l.liu@...el.com>,
        "Pan, Jacob jun" <jacob.jun.pan@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 10/11] iommu/vt-d: Use device_domain_lock accurately

On 2022/7/1 16:15, Tian, Kevin wrote:
>> From: Lu Baolu <baolu.lu@...ux.intel.com>
>> Sent: Wednesday, June 29, 2022 3:47 PM
>>
>> +	spin_lock_irqsave(&device_domain_lock, flags);
>>   	list_for_each_entry(info, &domain->devices, link) {
>> -		if (!info->dev)
>> -			continue;
>> -
> 
> suppose you can replace all spin_lock_irqsave() with spin_lock()
> in patch5 instead of leaving some replacement to next patch.
> 

Make sense. I will update the series.

Best regards,
baolu