linux-kernel - Re: [re: PATCH v2 00/15 - 07/11] dyndbg: __skip

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Message-ID: <CAK8ByeK0K21qae35KoC_3bHUa4qvkFt5pMbBMEo2pnWjoxJvxA@mail.gmail.com>
Date: Thu, 21 Dec 2023 16:25:11 +0100
From: Łukasz Bartosik <lb@...ihalf.com>
To: Petr Mladek <pmladek@...e.com>
Cc: Jim Cromie <jim.cromie@...il.com>, linux-kernel@...r.kernel.org, 
	akpm@...ux-foundation.org, bleung@...gle.com, contact@...rsion.fr, 
	daniel@...ll.ch, dianders@...omium.org, groeck@...gle.com, jbaron@...mai.com, 
	john.ogness@...utronix.de, keescook@...omium.org, ppaalanen@...il.com, 
	rostedt@...dmis.org, seanpaul@...omium.org, sergey.senozhatsky@...il.com, 
	upstream@...ihalf.com, vincent.whitchurch@...s.com, yanivt@...gle.com, 
	gregkh@...uxfoundation.org
Subject: Re: [re: PATCH v2 00/15 - 07/11] dyndbg: __skip_spaces

pon., 18 gru 2023 o 18:17 Petr Mladek <pmladek@...e.com> napisał(a):
>
> On Thu 2023-12-07 17:15:10, Jim Cromie wrote:
> > This private version treats a comma like a space.
>
> Please, make it clear that this patch adds a new function.
> Also please explain why it is needed and what are the effects.
>
> > Its not known necessary ATM, but seems prudent.
>
> It might be that I am not a native speaker but I can't parse
> the above sentence at all.
>
> What is not known?
> What is prudent?
>
>
> > Signed-off-by: Jim Cromie <jim.cromie@...il.com>
> > ---
> >  lib/dynamic_debug.c | 12 ++++++++++--
> >  1 file changed, 10 insertions(+), 2 deletions(-)
> >
> > diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
> > index a380b8151dd8..c974f6e19ca1 100644
> > --- a/lib/dynamic_debug.c
> > +++ b/lib/dynamic_debug.c
> > @@ -628,6 +628,14 @@ static int ddebug_change(const struct ddebug_query *query,
> >       return nfound;
> >  }
> >
> > +char *__skip_spaces(const char *str)
> > +{
> > +     str = skip_spaces(str);
> > +     if (*str == ',')
> > +             str = skip_spaces(++str);
> > +     return (char *)str;
> > +}
>
> The function should not be called "skip_spaces" when it skips also
> characters which are not typical white-space characters.
>
> Also the "__" are usually used the other way around. func()
> is usually a wrapper around __func().
>
> Please, use another name. If you can't find a good name then
> it suggests that the design is bad. The result would likely
> be hard to understand and maintain.
>

I will update the commit based on your comments.

Thanks,
Lukasz

> Best Regards,
> Petr
>
> PS: I am sorry, I do not have time for a proper review. I primary wanted
>     to check if the patchset somehow affected printk(). And I realized
>     that I do not understand what the changes are about. The commit
>     messages and the motivation might make sense only to people who
>     know the big picture. But I was not able to get the picture
>     for the changes in dot,comma,space handling.