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From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Timur Tabi <timur@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Petr Mladek <pmladek@suse.com>,
	roman.fietze@magna.com, Kees Cook <keescook@chromium.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	John Ogness <john.ogness@linutronix.de>,
	linux-mm <linux-mm@kvack.org>,
	Akinobu Mita <akinobu.mita@gmail.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Vaibhav Jain <vaibhav@linux.ibm.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Linux FS Devel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH 1/2] [v2] lib/hexdump: introduce DUMP_PREFIX_UNHASHED for unhashed addresses
Date: Mon, 18 Jan 2021 12:03:08 +0200	[thread overview]
Message-ID: <CAHp75Vdk6y8dGNJOswZwfOeva_sqVcw-f=yYgf_rptjHXxfZvw@mail.gmail.com> (raw)
In-Reply-To: <20210116220950.47078-2-timur@kernel.org>

On Sun, Jan 17, 2021 at 12:12 AM Timur Tabi <timur@kernel.org> wrote:

(Hint: -v<n> to the git format-patch will create a versioned subject
prefix for you automatically)

> Hashed addresses are useless in hexdumps unless you're comparing
> with other hashed addresses, which is unlikely.  However, there's
> no need to break existing code, so introduce a new prefix type
> that prints unhashed addresses.

Any user of this? (For the record, I don't see any other mail except this one)

...

>  enum {
>         DUMP_PREFIX_NONE,
>         DUMP_PREFIX_ADDRESS,
> -       DUMP_PREFIX_OFFSET
> +       DUMP_PREFIX_OFFSET,
> +       DUMP_PREFIX_UNHASHED,

Since it's an address, I would like to group them together, i.e. put
after DUMP_PREFIX_ADDRESS.
Perhaps even add _ADDRESS to DUMP_PREFIX_UNHASHED, but this maybe too long.

>  };

...

> + * @prefix_type: controls whether prefix of an offset, hashed address,
> + *  unhashed address, or none is printed (%DUMP_PREFIX_OFFSET,
> + *  %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_UNHASHED, %DUMP_PREFIX_NONE)

Yeah, exactly, here you use different ordering.

...

> + * @prefix_type: controls whether prefix of an offset, hashed address,
> + *  unhashed address, or none is printed (%DUMP_PREFIX_OFFSET,
> + *  %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_UNHASHED, %DUMP_PREFIX_NONE)

In both cases I would rather use colon and list one per line. What do you think?

...

> +               case DUMP_PREFIX_UNHASHED:

Here is a third type of ordering, can you please be consistent?

>                 case DUMP_PREFIX_ADDRESS:

...

> + * @prefix_type: controls whether prefix of an offset, hashed address,
> + *  unhashed address, or none is printed (%DUMP_PREFIX_OFFSET,
> + *  %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_UNHASHED, %DUMP_PREFIX_NONE)

As above.

...

> +               case DUMP_PREFIX_UNHASHED:

As above.

>                 case DUMP_PREFIX_ADDRESS:


-- 
With Best Regards,
Andy Shevchenko

  reply	other threads:[~2021-01-18 21:37 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-16 22:09 [PATCH 0/2] introduce DUMP_PREFIX_UNHASHED for hex dumps Timur Tabi
2021-01-16 22:09 ` [PATCH 1/2] [v2] lib/hexdump: introduce DUMP_PREFIX_UNHASHED for unhashed addresses Timur Tabi
2021-01-18 10:03   ` Andy Shevchenko [this message]
2021-01-18 15:57     ` Timur Tabi
2021-01-18 17:14       ` Andy Shevchenko
2021-01-18 17:53         ` Timur Tabi
2021-01-16 22:09 ` [PATCH 2/2] mm/page_poison: use unhashed address in hexdump for check_poison_mem() Timur Tabi
2021-01-18 18:26 ` [PATCH 0/2] introduce DUMP_PREFIX_UNHASHED for hex dumps Matthew Wilcox
2021-01-18 19:03   ` Timur Tabi
2021-01-19  0:53     ` Sergey Senozhatsky
2021-01-19  1:47       ` Matthew Wilcox
2021-01-19 10:38         ` Sergey Senozhatsky
2021-01-19 19:45           ` Kees Cook
2021-01-26 16:47           ` Vlastimil Babka
2021-01-26 16:59             ` Timur Tabi
2021-01-26 17:14               ` Steven Rostedt
2021-01-26 17:14               ` Vlastimil Babka
2021-01-26 17:30                 ` Timur Tabi
2021-01-26 17:39                   ` Steven Rostedt
2021-01-26 17:40                     ` Steven Rostedt
2021-01-26 19:23                       ` John Ogness
2021-01-27  2:11                         ` Sergey Senozhatsky
2021-01-27  3:22                           ` Timur Tabi
2021-01-27 10:11                       ` Petr Mladek
2021-01-27 10:38                         ` Vlastimil Babka
2021-01-19 19:45         ` Kees Cook
2021-01-19 19:55           ` Timur Tabi
2021-01-19 20:10             ` Steven Rostedt
2021-01-19 20:49               ` Timur Tabi
2021-01-19 21:15                 ` Steven Rostedt
2021-01-19 21:25                   ` Timur Tabi
2021-01-20  9:19             ` Petr Mladek
2021-01-20 12:17               ` Matthew Wilcox
2021-01-20 19:39               ` Linus Torvalds
2021-01-19 20:18           ` Randy Dunlap
2021-01-20 20:28             ` Kees Cook
2021-01-19  2:30       ` Timur Tabi

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