linux-kernel - Re: [PATCH v2] lib/test_printf.c: call wait_for_random

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Message-ID: <CAHp75VeXGT3KG9HXQstFJVyHFO8o64Dk0LSo43FzyR0SvPUONg@mail.gmail.com>
Date:   Wed, 13 Jun 2018 14:22:49 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Thierry Escande <thierry.escande@...aro.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        David Miller <davem@...emloft.net>,
        Petr Mladek <pmladek@...e.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        "Tobin C . Harding" <me@...in.cc>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] lib/test_printf.c: call wait_for_random_bytes() before
 plain %p tests

On Wed, Jun 13, 2018 at 12:29 PM, Thierry Escande
<thierry.escande@...aro.org> wrote:
> If the test_printf module is loaded before the crng is initialized, the
> plain 'p' tests will fail because the printed address will not be hashed
> and the buffer will contain "(ptrval)" instead.
> Since we cannot wait for the crng to be initialized for an undefined
> time, both plain 'p' tests now accept the string "(ptrval)" as a valid
> result and print a warning message.

There are two possibilities:
 1. (ptrval) for 32-bit case
 2. (____ptrval____) for 64-bit case.


-- 
With Best Regards,
Andy Shevchenko