linux-kernel - Re: [PATCH 1/2] [v2] lib/hexdump: introduce DUMP_PREFIX

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Message-ID: <ac04b231-863a-fa7c-08d7-563620d40c29@kernel.org>
Date:   Mon, 18 Jan 2021 11:53:10 -0600
From:   Timur Tabi <timur@...nel.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Petr Mladek <pmladek@...e.com>, roman.fietze@...na.com,
        Kees Cook <keescook@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        John Ogness <john.ogness@...utronix.de>,
        linux-mm <linux-mm@...ck.org>,
        Akinobu Mita <akinobu.mita@...il.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Vaibhav Jain <vaibhav@...ux.ibm.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 1/2] [v2] lib/hexdump: introduce DUMP_PREFIX_UNHASHED for
 unhashed addresses

On 1/18/21 11:14 AM, Andy Shevchenko wrote:
> But isn't it good to expose those issues (and fix them)?

I suppose.

>>> Perhaps even add _ADDRESS to DUMP_PREFIX_UNHASHED, but this maybe too
>> long.
>>
>> I think DUMP_PREFIX_ADDRESS_UNHASHED is too long.
> What about introducing new two like these:
> 
> 	DUMP_PREFIX_OFFSET,
> 	DUMP_PREFIX_ADDRESS,
> 	DUMP_PREFIX_ADDR_UNHASHED,
> 	DUMP_PREFIX_ADDR_HASHED,

I think we're approaching bike-shedding.  DUMP_PREFIX_ADDR_HASHED and 
DUMP_PREFIX_ADDRESS are the same thing.

I don't want people to have to move from DUMP_PREFIX_ADDRESS to some 
other enum for no change in functionality.  I'm willing to rearrange the 
code so that it's enumerated more consistently, but I don't think 
there's anything wrong with DUMP_PREFIX_UNHASHED.  It's succinct and clear.