Re: [PATCH v1 1/2] x86/platform/atom: Re-use DEFINE_SHOW_ATTRIBUTE() macro
From: Andy Shevchenko
Date: Fri Feb 16 2018 - 04:41:13 EST
On Fri, 2018-02-16 at 10:10 +0100, Ingo Molnar wrote:
> * Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>
> > ...instead of open coding file operations followed by custom
> > ->open()
> > callbacks per each attribute.
> >
> > While here, replace permissions by explicit octal value.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > ---
> > arch/x86/platform/atom/punit_atom_debug.c | 13 +------------
> > 1 file changed, 1 insertion(+), 12 deletions(-)
> >
> > diff --git a/arch/x86/platform/atom/punit_atom_debug.c
> > b/arch/x86/platform/atom/punit_atom_debug.c
> > index d49d3be81953..156b445bcf4d 100644
> > --- a/arch/x86/platform/atom/punit_atom_debug.c
> > +++ b/arch/x86/platform/atom/punit_atom_debug.c
> > @@ -109,18 +109,7 @@ static int punit_dev_state_show(struct seq_file
> > *seq_file, void *unused)
> >
> > return 0;
> > }
> > -
> > -static int punit_dev_state_open(struct inode *inode, struct file
> > *file)
> > -{
> > - return single_open(file, punit_dev_state_show, inode-
> > >i_private);
> > -}
> > -
> > -static const struct file_operations punit_dev_state_ops = {
> > - .open = punit_dev_state_open,
> > - .read = seq_read,
> > - .llseek = seq_lseek,
> > - .release = single_release,
> > -};
> > +DEFINE_SHOW_ATTRIBUTE(punit_dev_state);
> >
> > static struct dentry *punit_dbg_file;
>
> Hm, that octal value replacement does not seem to be part of this
> patch, only the
> next patch.
>
> Also, the debugfs_create_file() call still uses the old
> &punit_dev_state_ops
> callback array.
>
> Did a patch hunk go missing?
Ooops, sorry.
Indeed, it happened to be half baked.
>
> I've added the fixes below to the patch.
Thanks!
>
> Thanks,
>
> Ingo
>
> --- tip.orig/arch/x86/platform/atom/punit_atom_debug.c
> +++ tip/arch/x86/platform/atom/punit_atom_debug.c
> @@ -132,9 +121,9 @@ static int punit_dbgfs_register(struct p
> if (!punit_dbg_file)
> return -ENXIO;
>
> - dev_state = debugfs_create_file("dev_power_state", S_IFREG |
> S_IRUGO,
> + dev_state = debugfs_create_file("dev_power_state", 0444,
> punit_dbg_file, punit_device,
> - &punit_dev_state_ops);
> + &punit_dev_state_fops);
> if (!dev_state) {
> pr_err("punit_dev_state register failed\n");
> debugfs_remove(punit_dbg_file);
--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy