linux-kernel - Re: [PATCH v5 1/2] x86: fix bitops.h warning with a moved cast

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Message-ID: <20200310152225.00002327@intel.com>
Date:   Tue, 10 Mar 2020 15:22:25 -0700
From:   Jesse Brandeburg <jesse.brandeburg@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...el.com>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
        <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux@...musvillemoes.dk>, <dan.j.williams@...el.com>
Subject: Re: [PATCH v5 1/2] x86: fix bitops.h warning with a moved cast

On Tue, 25 Feb 2020 13:50:30 +0100 Peter wrote:
> On Tue, Feb 25, 2020 at 12:30:50PM +0200, Andy Shevchenko wrote:
> 
> > I think it is a C standard which dictates this, compiler just follows.  
> 
> Correct, a semi readable explanation of this:
> 
>   https://stackoverflow.com/questions/46073295/implicit-type-promotion-rules

Thanks! I sent a v6 with a reworded explanation and link to the above.