On Fri, Jan 20, 2023 at 12:08:06AM +0200, Andy Shevchenko wrote:
> Use DEFINE_SHOW_ATTRIBUTE() helper macro to simplify the code.
> No functional change.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
> drivers/block/pktcdvd.c | 23 +++--------------------
> 1 file changed, 3 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
> index a53d21dbf2ab..2c5441303e55 100644
> --- a/drivers/block/pktcdvd.c
> +++ b/drivers/block/pktcdvd.c
> @@ -504,24 +504,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
> pd->write_congestion_on);
> return 0;
> }
> -
> -static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
> -{
> - return pkt_seq_show(m, p);
> -}
> -
> -static int pkt_debugfs_fops_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, pkt_debugfs_seq_show, inode->i_private);
> -}
> -
> -static const struct file_operations debug_fops = {
> - .open = pkt_debugfs_fops_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> - .owner = THIS_MODULE,
> -};
> +DEFINE_SHOW_ATTRIBUTE(pkt_seq);
>
> static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
> {
> @@ -531,8 +514,8 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
> if (!pd->dfs_d_root)
> return;
This check shouldn't be here either.
> - pd->dfs_f_info = debugfs_create_file("info", 0444,
> - pd->dfs_d_root, pd, &debug_fops);
> + pd->dfs_f_info = debugfs_create_file("info", 0444, pd->dfs_d_root,
> + pd, &pkt_seq_fops);
For further cleanup, there's no need to keep this dentry at all as the
whole directory is later removed.
But that's future cleanups, for this, nice work:
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
