linux-kernel - Re: [PATCH] cpufreq: s3c24xx: Change to use DEFINE_SHOW

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Date:   Tue, 11 Dec 2018 11:45:05 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Yangtao Li <tiny.windzz@...il.com>
Cc:     kgene@...nel.org, krzk@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: s3c24xx: Change to use DEFINE_SHOW_ATTRIBUTE macro

On Thursday, November 8, 2018 5:45:03 AM CET Viresh Kumar wrote:
> On 07-11-18, 11:13, Yangtao Li wrote:
> > Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
> > 
> > Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
> > ---
> >  drivers/cpufreq/s3c24xx-cpufreq-debugfs.c | 46 +++--------------------
> >  1 file changed, 6 insertions(+), 40 deletions(-)
> > 
> > diff --git a/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c b/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c
> > index 4d976e8dbb2f..0df87b6480fe 100644
> > --- a/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c
> > +++ b/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c
> > @@ -63,18 +63,7 @@ static int board_show(struct seq_file *seq, void *p)
> >  	return 0;
> >  }
> >  
> > -static int fops_board_open(struct inode *inode, struct file *file)
> > -{
> > -	return single_open(file, board_show, NULL);
> > -}
> > -
> > -static const struct file_operations fops_board = {
> > -	.open		= fops_board_open,
> > -	.read		= seq_read,
> > -	.llseek		= seq_lseek,
> > -	.release	= single_release,
> > -	.owner		= THIS_MODULE,
> > -};
> > +DEFINE_SHOW_ATTRIBUTE(board);
> >  
> >  static int info_show(struct seq_file *seq, void *p)
> >  {
> > @@ -105,18 +94,7 @@ static int info_show(struct seq_file *seq, void *p)
> >  	return 0;
> >  }
> >  
> > -static int fops_info_open(struct inode *inode, struct file *file)
> > -{
> > -	return single_open(file, info_show, NULL);
> > -}
> > -
> > -static const struct file_operations fops_info = {
> > -	.open		= fops_info_open,
> > -	.read		= seq_read,
> > -	.llseek		= seq_lseek,
> > -	.release	= single_release,
> > -	.owner		= THIS_MODULE,
> > -};
> > +DEFINE_SHOW_ATTRIBUTE(info);
> >  
> >  static int io_show(struct seq_file *seq, void *p)
> >  {
> > @@ -162,19 +140,7 @@ static int io_show(struct seq_file *seq, void *p)
> >  	return 0;
> >  }
> >  
> > -static int fops_io_open(struct inode *inode, struct file *file)
> > -{
> > -	return single_open(file, io_show, NULL);
> > -}
> > -
> > -static const struct file_operations fops_io = {
> > -	.open		= fops_io_open,
> > -	.read		= seq_read,
> > -	.llseek		= seq_lseek,
> > -	.release	= single_release,
> > -	.owner		= THIS_MODULE,
> > -};
> > -
> > +DEFINE_SHOW_ATTRIBUTE(io);
> >  
> >  static int __init s3c_freq_debugfs_init(void)
> >  {
> > @@ -185,13 +151,13 @@ static int __init s3c_freq_debugfs_init(void)
> >  	}
> >  
> >  	dbgfs_file_io = debugfs_create_file("io-timing", S_IRUGO, dbgfs_root,
> > -					    NULL, &fops_io);
> > +					    NULL, &io_fops);
> >  
> >  	dbgfs_file_info = debugfs_create_file("info", S_IRUGO, dbgfs_root,
> > -					      NULL, &fops_info);
> > +					      NULL, &info_fops);
> >  
> >  	dbgfs_file_board = debugfs_create_file("board", S_IRUGO, dbgfs_root,
> > -					       NULL, &fops_board);
> > +					       NULL, &board_fops);
> >  
> >  	return 0;
> >  }
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

Patch applied, thanks!