linux-kernel - Re: + printf-add-support-for-printing-symbolic-error-codes.patch added to -mm tree

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Date:   Mon, 7 Oct 2019 10:14:11 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     akpm@...ux-foundation.org
Cc:     andy.shevchenko@...il.com, sergey.senozhatsky.work@...il.com,
        hughd@...gle.com, uwe@...ine-koenig.org,
        jani.nikula@...ux.intel.com, corbet@....net,
        mike.kravetz@...cle.com, joe@...ches.com, linux@...musvillemoes.dk,
        aarcange@...hat.com, pavel@....cz, linux-kernel@...r.kernel.org,
        mm-commits@...r.kernel.org
Subject: Re: + printf-add-support-for-printing-symbolic-error-codes.patch
 added to -mm tree

Hi Andrew,

On Sat 2019-10-05 14:52:00, Andrew Morton wrote:
> 
> The patch titled
>      Subject: vsprintf: add support for printing symbolic error codes
> has been added to the -mm tree.  Its filename is
>      printf-add-support-for-printing-symbolic-error-codes.patch

The patch is still under discussion. AFAIK, Rasmus is working on v4.
The main points are:

  + Rename the ambiguous "errcode" to "errname".

  + Introduce "%pe" instead of enhancing plain %p. First, the plain %p
    has become almost useless (hashing) on purpose (avoid leaking
    addresses). Second, we need something that will be explicitly
    used to print error codes.

  + Plus there are few more cosmetic issues.

I planed to take the patch via printk.git once ready.

Best Regards,
Petr