linux-kernel - Re: [PATCH v2 1/9] lib/test_printf: Mark big constant with ULL

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Message-ID: <CAHp75Vdyqsaf31uxrhJXvJEK=npj_jJfyaEUA-NK0CqU_bhtGA@mail.gmail.com>
Date:   Sun, 18 Feb 2018 16:20:31 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "Tobin C . Harding" <me@...in.cc>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 1/9] lib/test_printf: Mark big constant with ULL

On Sun, Feb 18, 2018 at 2:58 PM, Luc Van Oostenryck
<luc.vanoostenryck@...il.com> wrote:
> On Fri, Feb 16, 2018 at 11:07:03PM +0200, Andy Shevchenko wrote:
>> Sparse complains that constant is so bit for unsigned long on 64-bit
>> architecture.
>>
>> lib/test_printf.c:217:54: warning: constant 0xffff0123456789ab is so big it is unsigned long
>> lib/test_printf.c:246:54: warning: constant 0xffff0123456789ab is so big it is unsigned long
>>
>> To satisfy everyone, mark the constant with ULL.
>
> It should be 'UL' not 'ULL' since for architectures a pointer and
> a unsigned long have the ame size while on 32bit archs, long long
> are (or may?) 64bit.

Perhaps, I'll try next week. Though ULL works fine as well.

-- 
With Best Regards,
Andy Shevchenko