From: Jeff Epler <jepler@unpythonic.net>
To: Javi Merino <javi.merino@arm.com>
Cc: akpm@linux-foundation.org, intel-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Daniel Vetter <daniel.vetter@intel.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
David Airlie <airlied@linux.ie>,
"Darrick J. Wong" <djwong@us.ibm.com>,
Guenter Roeck <linux@roeck-us.net>
Subject: Re: [PATCH 1/4] kernel.h: Implement DIV_ROUND_CLOSEST_ULL
Date: Mon, 23 Mar 2015 07:34:04 -0500 [thread overview]
Message-ID: <20150323123404.GC17049@unpythonic.net> (raw)
In-Reply-To: <1426850083-11049-2-git-send-email-javi.merino@arm.com>
On Fri, Mar 20, 2015 at 11:14:40AM +0000, Javi Merino wrote:
> +/*
> + * Same as above but for u64 dividends. divisor must be a 32-bit
> + * number.
> + */
> +#define DIV_ROUND_CLOSEST_ULL(x, divisor)( \
> +{ \
> + unsigned long long _tmp = (x) + (divisor) / 2; \
> + do_div(_tmp, divisor); \
> + _tmp; \
> +} \
> +)
The macro evaluates 'divisor' twice.
Jeff
next prev parent reply other threads:[~2015-03-23 12:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 11:14 [PATCH 0/4] Consolidate DIV_ROUND_CLOSEST_ULL() Javi Merino
2015-03-20 11:14 ` [PATCH 1/4] kernel.h: Implement DIV_ROUND_CLOSEST_ULL Javi Merino
2015-03-20 13:15 ` Alex Elder
2015-03-20 18:19 ` Emil Velikov
2015-03-20 18:27 ` Javi Merino
2015-03-23 7:41 ` Daniel Vetter
2015-03-23 12:34 ` Jeff Epler [this message]
2015-03-23 17:04 ` Javi Merino
2015-03-24 11:49 ` Javi Merino
2015-03-20 11:14 ` [PATCH 2/4] clk: bcm/kona: use DIV_ROUND_CLOSEST_ULL() Javi Merino
2015-03-20 11:14 ` [PATCH 3/4] cpuidle: menu: " Javi Merino
2015-03-20 11:14 ` [PATCH 4/4] media: cxd2820r: " Javi Merino
2015-03-20 11:17 ` Antti Palosaari
2015-03-20 13:51 ` Alex Elder
2015-03-20 17:27 ` Javi Merino
2015-03-20 19:46 ` Alex Elder
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