netdev - Re: [RESEND PATCH V3 4/6] PCI: Enable 10-Bit tag support for PCIe Endpoint devices

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Message-ID: <9a44a46a-7270-1e86-2476-49a4743f14df@huawei.com>
Date:   Tue, 15 Jun 2021 11:07:06 +0800
From:   Dongdong Liu <liudongdong3@...wei.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     <helgaas@...nel.org>, <kw@...ux.com>, <linux-pci@...r.kernel.org>,
        <rajur@...lsio.com>, <hverkuil-cisco@...all.nl>,
        <linux-media@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: Re: [RESEND PATCH V3 4/6] PCI: Enable 10-Bit tag support for PCIe
 Endpoint devices



On 2021/6/14 13:54, Christoph Hellwig wrote:
> On Sun, Jun 13, 2021 at 05:29:13PM +0800, Dongdong Liu wrote:
>> +static void pci_configure_10bit_tags(struct pci_dev *dev)
>> +{
>> +	struct pci_dev *bridge;
>> +
>> +	if (!pci_is_pcie(dev))
>> +		return;
>> +
>> +	if (!(dev->pcie_devcap2 & PCI_EXP_DEVCAP2_10BIT_TAG_COMP))
>> +		return;
>
> Doesn't the second check imply the first one?
Yes, no need the first one, will delete.

Thanks,
Dongdong
>
> Otherwise looks good:
>
> Reviewed-by: Christoph Hellwig <hch@....de>
> .
>