linux-kernel - Re: [PATCH -next] PCI: tegra: convert to use DEFINE_SEQ

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Date:   Mon, 28 Sep 2020 12:09:57 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Liu Shixin <liushixin2@...wei.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-tegra@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] PCI: tegra: convert to use DEFINE_SEQ_ATTRIBUTE
 macro

On Wed, Sep 16, 2020 at 10:50:25AM +0800, Liu Shixin wrote:
> Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.
> 
> Signed-off-by: Liu Shixin <liushixin2@...wei.com>
> ---
>  drivers/pci/controller/pci-tegra.c | 28 +++-------------------------
>  1 file changed, 3 insertions(+), 25 deletions(-)

Applied to pci/tegra, thanks.

Lorenzo

> diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
> index c1d34353c29b..556c30a718f0 100644
> --- a/drivers/pci/controller/pci-tegra.c
> +++ b/drivers/pci/controller/pci-tegra.c
> @@ -2564,36 +2564,14 @@ static int tegra_pcie_ports_seq_show(struct seq_file *s, void *v)
>  	return 0;
>  }
>  
> -static const struct seq_operations tegra_pcie_ports_seq_ops = {
> +static const struct seq_operations tegra_pcie_ports_sops = {
>  	.start = tegra_pcie_ports_seq_start,
>  	.next = tegra_pcie_ports_seq_next,
>  	.stop = tegra_pcie_ports_seq_stop,
>  	.show = tegra_pcie_ports_seq_show,
>  };
>  
> -static int tegra_pcie_ports_open(struct inode *inode, struct file *file)
> -{
> -	struct tegra_pcie *pcie = inode->i_private;
> -	struct seq_file *s;
> -	int err;
> -
> -	err = seq_open(file, &tegra_pcie_ports_seq_ops);
> -	if (err)
> -		return err;
> -
> -	s = file->private_data;
> -	s->private = pcie;
> -
> -	return 0;
> -}
> -
> -static const struct file_operations tegra_pcie_ports_ops = {
> -	.owner = THIS_MODULE,
> -	.open = tegra_pcie_ports_open,
> -	.read = seq_read,
> -	.llseek = seq_lseek,
> -	.release = seq_release,
> -};
> +DEFINE_SEQ_ATTRIBUTE(tegra_pcie_ports);
>  
>  static void tegra_pcie_debugfs_exit(struct tegra_pcie *pcie)
>  {
> @@ -2610,7 +2588,7 @@ static int tegra_pcie_debugfs_init(struct tegra_pcie *pcie)
>  		return -ENOMEM;
>  
>  	file = debugfs_create_file("ports", S_IFREG | S_IRUGO, pcie->debugfs,
> -				   pcie, &tegra_pcie_ports_ops);
> +				   pcie, &tegra_pcie_ports_fops);
>  	if (!file)
>  		goto remove;
>  
> -- 
> 2.25.1
>