From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Petr Mladek <pmladek@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
"Tobin C . Harding" <me@tobin.cc>, Joe Perches <joe@perches.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.cz>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
linux-kernel@vger.kernel.org, Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH v4 2/9] vsprintf: Consistent %pK handling for kptr_restrict == 0
Date: Mon, 09 Apr 2018 15:11:59 +0300 [thread overview]
Message-ID: <1523275919.21176.429.camel@linux.intel.com> (raw)
In-Reply-To: <20180409120526.66ubl3by4cvaaprq@pathway.suse.cz>
On Mon, 2018-04-09 at 14:05 +0200, Petr Mladek wrote:
> On Sat 2018-04-07 17:08:18, Andy Shevchenko wrote:
> > On Thu, 2018-04-05 at 16:46 +0200, Petr Mladek wrote:
> > > On Thu 2018-04-05 16:04:45, Andy Shevchenko wrote:
> > > > On Wed, 2018-04-04 at 10:58 +0200, Petr Mladek wrote:
> > > > > /* Maps a pointer to a 32 bit unique identifier. */
> > > > > -static char *ptr_to_id(char *buf, char *end, void *ptr,
> > > > > struct
> > > > > printf_spec spec)
> > > > > +static char *ptr_to_id(char *buf, char *end,
> > > > > + const void *ptr, struct printf_spec
> > > > > spec)
> > > >
> > > > I don't think this change belongs to the patch.
> > >
> > > The const should have been there from the beginning. I have found
> > > it
> > > because this patch added a call to ptr_to_id() which had the const
> > > and compiler warned about cast problems.
> >
> > So, why not to do a separate patch with clear intention?
>
> If you insist I could do it as separate patch.
I believe, that logical changes are easier to review and understand when
it's not mixed with other changes.
> > > IMHO, it is rather cosmetic change.
> > > From my experience I'm afraid of cosmetic changes in the patches
> > > which
> >
> > might focus out attention on real fix.
>
> I would understand this if it was part of a large patch that changed
> complex chain of functions. But this patch touched 5 lines. The const
> is added into static function that is almost leaf and was called
> only from a single location.
But it's up to you.
--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
next prev parent reply other threads:[~2018-04-09 12:12 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-04 8:58 [PATCH v4 0/9] vsprintf: Prevent silent crashes and consolidate error handling Petr Mladek
2018-04-04 8:58 ` [PATCH v4 1/9] vsprintf: Shuffle ptr_to_id() code Petr Mladek
2018-04-04 8:58 ` [PATCH v4 2/9] vsprintf: Consistent %pK handling for kptr_restrict == 0 Petr Mladek
2018-04-04 23:10 ` Sergey Senozhatsky
2018-04-05 14:34 ` Petr Mladek
2018-04-05 13:04 ` Andy Shevchenko
2018-04-05 14:46 ` Petr Mladek
2018-04-07 14:08 ` Andy Shevchenko
2018-04-09 12:05 ` Petr Mladek
2018-04-09 12:11 ` Andy Shevchenko [this message]
2018-04-04 8:58 ` [PATCH v4 3/9] vsprintf: Do not check address of well-known strings Petr Mladek
2018-04-05 13:30 ` Rasmus Villemoes
2018-04-06 9:15 ` Petr Mladek
2018-04-07 14:12 ` Andy Shevchenko
2018-04-09 12:19 ` Petr Mladek
2018-04-10 10:05 ` Andy Shevchenko
2018-04-04 8:58 ` [PATCH v4 4/9] vsprintf: Consolidate handling of unknown pointer specifiers Petr Mladek
2018-04-05 14:25 ` Rasmus Villemoes
2018-04-05 23:45 ` Joe Perches
2018-04-05 23:55 ` Joe Perches
2018-04-06 11:43 ` Petr Mladek
2018-04-06 13:17 ` Rasmus Villemoes
2018-04-06 14:27 ` Joe Perches
2018-04-09 12:30 ` Petr Mladek
2018-04-07 14:23 ` Andy Shevchenko
2018-04-06 23:52 ` Sergey Senozhatsky
2018-04-06 23:59 ` Joe Perches
2018-04-07 0:33 ` Sergey Senozhatsky
2018-04-07 1:00 ` Joe Perches
2018-04-07 1:17 ` Sergey Senozhatsky
2018-04-06 11:25 ` Petr Mladek
2018-04-07 14:26 ` Andy Shevchenko
2018-04-09 13:50 ` Petr Mladek
2018-04-10 11:41 ` Andy Shevchenko
2018-04-11 9:52 ` Petr Mladek
2018-04-24 16:47 ` Andy Shevchenko
2018-04-04 8:58 ` [PATCH v4 5/9] vsprintf: Factor out %p[iI] handler as ip_addr_string() Petr Mladek
2018-04-04 23:58 ` Sergey Senozhatsky
2018-04-05 14:14 ` Petr Mladek
2018-04-07 14:30 ` Andy Shevchenko
2018-04-04 8:58 ` [PATCH v4 6/9] vsprintf: Factor out %pV handler as va_format() Petr Mladek
2018-04-04 14:26 ` Joe Perches
2018-04-06 13:12 ` Petr Mladek
2018-04-06 14:19 ` Joe Perches
2018-04-09 11:44 ` Petr Mladek
2018-04-09 11:59 ` Joe Perches
2018-04-04 8:58 ` [PATCH v4 7/9] vsprintf: Factor out %pO handler as kobject_string() Petr Mladek
2018-04-04 23:35 ` Sergey Senozhatsky
2018-04-04 23:43 ` Sergey Senozhatsky
2018-04-05 14:02 ` Petr Mladek
2018-04-04 8:58 ` [PATCH v4 8/9] vsprintf: Prevent crash when dereferencing invalid pointers Petr Mladek
2018-04-05 14:46 ` Rasmus Villemoes
2018-04-06 12:26 ` Petr Mladek
2018-04-06 13:12 ` Rasmus Villemoes
2018-04-10 13:26 ` Petr Mladek
2018-04-06 9:37 ` Rasmus Villemoes
2018-04-04 8:58 ` [PATCH v4 9/9] vsprintf: Avoid confusion between invalid address and value Petr Mladek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1523275919.21176.429.camel@linux.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=joe@perches.com \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@rasmusvillemoes.dk \
--cc=me@tobin.cc \
--cc=mhocko@suse.cz \
--cc=pmladek@suse.com \
--cc=rostedt@goodmis.org \
--cc=sergey.senozhatsky.work@gmail.com \
--cc=sergey.senozhatsky@gmail.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox