From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Cochran <richardcochran@gmail.com>
Date: Mon, 19 Feb 2018 17:37:14 +0000
Subject: Re: [PATCH][V2] net: dsa: mv88e6xxx: avoid unintended sign extension on a 16 bit shift
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 <a97bab4dc79c4b7da76826843909cae9@AcuMS.aculab.com>
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To: David Laight <David.Laight@ACULAB.COM>
Cc: 'Colin King' <colin.king@canonical.com>, Andrew Lunn <andrew@lunn.ch>, Vivien Didelot <vivien.didelot@savoirfairelinux.com>, Florian Fainelli <f.fainelli@gmail.com>, "netdev@vger.kernel.org" <netdev@vger.kernel.org>, "kernel-janitors@vger.kernel.org" <kernel-janitors@vger.kernel.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>

On Mon, Feb 19, 2018 at 12:19:16PM +0000, David Laight wrote:
> This seems to be somewhat excessive 64bit maths on a 32bit system.
> It is more than enough to make timelo/timehi 'unsigned int'.

Do you see a difference in the generated code?

Thanks,
Richard