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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: john stultz <johnstul@us.ibm.com>
Cc: Andrew Morton <akpm@osdl.org>,
	lkml <linux-kernel@vger.kernel.org>,
	joe-lkml@rameria.de, George Anzinger <george@mvista.com>,
	Ulrich Windl <ulrich.windl@rz.uni-regensburg.de>,
	Roman Zippel <zippel@linux-m68k.org>,
	yoshfuji@linux-ipv6.org
Subject: Re: [PATCH] NTP shift_right cleanup (v. A3)
Date: Wed, 21 Sep 2005 15:24:38 +1000	[thread overview]
Message-ID: <4330EE96.6070801@yahoo.com.au> (raw)
In-Reply-To: <1127273050.11080.34.camel@cog.beaverton.ibm.com>

john stultz wrote:

> 
>+/* Required to safely shift negative values */
>+#define shift_right(x, s) ({	\
>+	__typeof__(x) __x = (x);	\
>+	__typeof__(s) __s = (s);	\
>+	__x < 0 ? -(-__x >> __s) : __x >> __s;	\
>+})
>+
>

I'd hate to be the one to make you do another version of this ;)

However, how about having something more descriptive than shift_right?
signed_shift_right / shift_right_signed, maybe?

Nick


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  reply	other threads:[~2005-09-21  5:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-09-14 17:48 [RFC][PATCH] NTP shift_right cleanup (v. A1) john stultz
2005-09-14 17:53 ` john stultz
2005-09-14 18:39   ` NTP leap second question George Anzinger
2005-09-14 18:54     ` john stultz
2005-09-15  6:49       ` Ulrich Windl
2005-09-15 17:21         ` Kyle Moffett
2005-09-15 18:35           ` Alan Cox
2005-09-14 18:13 ` [RFC][PATCH] NTP shift_right cleanup (v. A1) Roman Zippel
2005-09-14 18:25   ` john stultz
2005-09-14 19:11     ` Roman Zippel
2005-09-14 18:40 ` [RFC][PATCH] NTP shift_right cleanup (v. A2) john stultz
2005-09-20  1:28 ` [PATCH] " john stultz
2005-09-21  3:24   ` [PATCH] NTP shift_right cleanup (v. A3) john stultz
2005-09-21  5:24     ` Nick Piggin [this message]
2005-09-21  8:13       ` Ulrich Windl
2005-09-21 12:18         ` Nick Piggin
  -- strict thread matches above, loose matches on Subject: below --
2005-09-21 11:49 linux

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