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

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Message-ID: <YMbvGYR/pAMwKMbB@infradead.org>
Date:   Mon, 14 Jun 2021 06:54:33 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Dongdong Liu <liudongdong3@...wei.com>
Cc:     helgaas@...nel.org, hch@...radead.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 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?

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@....de>