On (06/24/15 08:10), Greg KH <gre...@linuxfoundation.org>
(gre...@linuxfoundation.org) wrote:
> On Wed, Jun 24, 2015 at 03:25:57PM +0900, Sergey Senozhatsky wrote:
> > On (06/24/15 06:10), Seymour, Shane M wrote:
> > [..]
> > >
> > > /* The sysfs driver interface. Read-only at the moment */
> > > -static ssize_t st_try_direct_io_show(struct device_driver *ddp, char
> > > *buf)
> > > +static ssize_t try_direct_io_show(struct device_driver *ddp, char *buf)
> > > {
> > > - return snprintf(buf, PAGE_SIZE, "%d\n", try_direct_io);
> > > + return sprintf(buf, "%d\n", try_direct_io);
> > > }
> >
> > a nitpick,
> >
> > per Documentation/filesystems/sysfs.txt
> >
> > :
> > : - show() should always use scnprintf().
> > :
>
> That should be rewritten to say, "don't use snprintf(), but scnprintf(),
> if you want to. Otherwise sprintf() should be fine as you obviously are
> only returning a single value to userspace"
>
Sure, that was just a nitpick. For '%d' it's totally fine, I agree.
It was more of a 'do we strictly obey the rules' thing.
-ss
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