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

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Message-ID: <20180411094147.6zmq5h46men6g74t@pathway.suse.cz>
Date:   Wed, 11 Apr 2018 11:41:47 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        "Tobin C . Harding" <me@...in.cc>, linux@...musvillemoes.dk,
        Joe Perches <joe@...ches.com>, 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 Mon 2018-02-19 17:24:22, Andy Shevchenko wrote:
> On Sun, 2018-02-18 at 13:58 +0100, Luc Van Oostenryck 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.
> 
> Yes, UL works as well.

I have updated the patch and pushed it into printk.git,
branch for-4.18-vsprintf-cleanup.

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr