From: Joe Perches <joe@perches.com>
To: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>, Sam Ravnborg <sam@ravnborg.org>
Cc: Denys Vlasenko <dvlasenk@redhat.com>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Martin Kepplinger <martink@posteo.de>,
Sasha Levin <sasha.levin@oracle.com>,
Ingo Molnar <mingo@kernel.org>, Yury Norov <yury.norov@gmail.com>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 01/31] bitops: add parity functions
Date: Mon, 28 Mar 2016 19:56:04 -0700 [thread overview]
Message-ID: <1459220164.25110.41.camel@perches.com> (raw)
In-Reply-To: <56F9E818.1050508@gmail.com>
On Tue, 2016-03-29 at 10:27 +0800, Zeng Zhaoxiu wrote:
> 在 2016年03月28日 14:51, Sam Ravnborg 写道:
[]
> > Defining these as static inlines in asm-generic prevent an
> > architecture
> > from selecting between a more optimal asm version or the generic version
> > at run-time.
> > sparc would benefit from this as only some sparc chips supports popc.
> > See how this is done for hweight*
> >
> > Sam
> Thanks. I will try.
You might also try to describe in any commit message
and perhaps the internal documentation why using gcc's
__builtin_parity isn't appropriate.
next prev parent reply other threads:[~2016-03-29 2:56 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-24 3:03 [PATCH 01/31] bitops: add parity functions Zhaoxiu Zeng
2016-03-24 8:38 ` Denys Vlasenko
2016-03-24 22:28 ` Andrew Morton
2016-03-26 22:08 ` Martin Kepplinger
2016-03-27 7:51 ` zhaoxiu.zeng
2016-03-27 3:33 ` zhaoxiu.zeng
2016-03-27 12:44 ` Sam Ravnborg
2016-03-27 13:38 ` zhaoxiu.zeng
2016-03-27 17:56 ` Sam Ravnborg
2016-03-28 2:44 ` Zeng Zhaoxiu
2016-03-28 2:15 ` Zeng Zhaoxiu
2016-03-28 6:51 ` Sam Ravnborg
2016-03-29 2:27 ` Zeng Zhaoxiu
2016-03-29 2:56 ` Joe Perches [this message]
2016-03-27 4:02 ` [PATCH 02/31] Include generic parity.h in some architectures' bitops.h zhaoxiu.zeng
2016-03-27 5:43 ` [PATCH 03/31] Add alpha-specific parity functions zhaoxiu.zeng
2016-03-28 18:33 ` Richard Henderson
2016-03-27 5:47 ` [PATCH 04/31] Add avr32-specific " zhaoxiu.zeng
2016-03-28 20:00 ` Hans-Christian Noren Egtvedt
2016-03-27 5:53 ` [PATCH 05/31] Add blackfin-specific " zhaoxiu.zeng
2016-03-27 6:00 ` [PATCH 06/31] Add ia64-specific " zhaoxiu.zeng
2016-03-27 6:06 ` [PATCH 07/31] Add mips-specific " zhaoxiu.zeng
2016-03-28 17:25 ` David Daney
2016-03-29 2:15 ` Zeng Zhaoxiu
2016-03-27 6:10 ` [PATCH 08/31] Add tile-specific " zhaoxiu.zeng
2016-03-27 6:37 ` [PATCH 09/31] Add powerpc-specific " zhaoxiu.zeng
2016-03-27 6:43 ` [PATCH 10/31] Add sparc-specific " zhaoxiu.zeng
2016-03-28 2:43 ` David Miller
2016-03-28 5:44 ` Zeng Zhaoxiu
2016-03-28 15:29 ` David Miller
2016-03-28 15:37 ` Sam Ravnborg
2016-03-28 15:46 ` David Miller
2016-03-27 6:45 ` [PATCH 11/31] Add x86-specific " zhaoxiu.zeng
2016-03-29 12:11 ` One Thousand Gnomes
2016-03-27 6:51 ` [PATCH 12/31] sunrpc: auth_gss: use parity8 zhaoxiu.zeng
2016-03-27 6:55 ` [PATCH 13/31] mips: use parity functions in cerr-sb1.c zhaoxiu.zeng
2016-03-27 7:01 ` [PATCH 14/31] lib: bch: use parity32 zhaoxiu.zeng
2016-03-27 7:06 ` [PATCH 15/31] media: use parity8 in vivid-vbi-gen.c zhaoxiu.zeng
2016-03-27 7:10 ` [PATCH 16/31] media: saa7115: use parity functions zhaoxiu.zeng
2016-03-27 7:13 ` [PATCH 17/31] input: joystick: use parity32 in grip_mp.c zhaoxiu.zeng
2016-03-27 7:15 ` [PATCH 18/31] input: joystick: use parity64 in sidewinder.c zhaoxiu.zeng
2016-03-27 7:18 ` [PATCH 19/31] input: serio: use parity16 in ams_delta_serio.c zhaoxiu.zeng
2016-03-27 7:20 ` [PATCH 20/31] scsi: use parity32 in isci/phy.c zhaoxiu.zeng
2016-03-27 7:24 ` [PATCH 21/31] mtd: use parity16 in ssfdc.c zhaoxiu.zeng
2016-04-01 23:48 ` Brian Norris
2016-03-27 7:27 ` [PATCH 22/31] mtd: use parity functions in inftlcore.c zhaoxiu.zeng
2016-03-27 7:30 ` [PATCH 23/31] crypto: qat: use parity functions in qat_hal.c zhaoxiu.zeng
2016-03-27 7:33 ` [PATCH 24/31] mtd: use parity16 in sm_ftl.c zhaoxiu.zeng
2016-03-27 7:36 ` [PATCH 25/31] ethernet: use parity8 in sun/niu.c zhaoxiu.zeng
2016-03-28 14:33 ` Michal Nazarewicz
2016-03-27 7:38 ` [PATCH 26/31] input: serio: use parity8 in pcips2.c zhaoxiu.zeng
2016-03-27 7:40 ` [PATCH 27/31] input: serio: use parity8 in sa1111ps2.c zhaoxiu.zeng
2016-03-27 7:42 ` [PATCH 28/31] iio: gyro: use parity32 in adxrs450.c zhaoxiu.zeng
2016-03-28 8:35 ` Jonathan Cameron
2016-03-28 8:50 ` Lars-Peter Clausen
2016-03-27 7:44 ` [PATCH 29/31] serial: use parity32 in max3100.c zhaoxiu.zeng
2016-03-27 7:48 ` [PATCH 30/31] input: mouse: use parity8 in elantech zhaoxiu.zeng
2016-03-27 7:50 ` [PATCH 31/31] ethernet: broadcom: use parity8 in tg3.c zhaoxiu.zeng
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