From: Arjan van de Ven <arjan@linux.intel.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>,
netdev@vger.kernel.org, auke-jan.h.kok@intel.com,
akpm@linux-foundation.org
Subject: Re: [PATCH] ixgbe: Introduce new 10GbE driver for Intel 82598 based PCI Express adapters...
Date: Mon, 02 Jul 2007 07:27:05 -0700 [thread overview]
Message-ID: <46890B39.4050909@linux.intel.com> (raw)
In-Reply-To: <46890AED.7070906@garzik.org>
Jeff Garzik wrote:
>>> always avoid bitfields. They generate horrible code, and endian
>>> problems abound (though no endian problems are apparent here).
>>
>> they generate no worse code than open coding the checks for these
>> feature flags...
>
> That would be the logical assumption, but reality does not bear that
> logic out to be true.
>
I just checked a small example and gcc just generates a testb with an
immediate value, which isn't all that bad code.
Do you remember which gcc you tested with?
next prev parent reply other threads:[~2007-07-02 14:28 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-12 23:44 [ANNOUNCE] new driver ixgbe for Intel(R) 10GbE PCI Express adapters Ayyappan.Veeraiyan
2007-06-12 23:44 ` [PATCH] ixgbe: Introduce new 10GbE driver for Intel 82598 based " Ayyappan Veeraiyan
2007-07-02 12:52 ` Jeff Garzik
2007-07-02 14:05 ` Arjan van de Ven
2007-07-02 14:25 ` Jeff Garzik
2007-07-02 14:27 ` Arjan van de Ven [this message]
2007-07-02 14:41 ` Jeff Garzik
2007-07-02 14:41 ` Arjan van de Ven
2007-07-02 15:26 ` Kok, Auke
2007-07-02 15:32 ` Jeff Garzik
2007-07-02 15:52 ` Andrew Morton
2007-07-02 16:09 ` Jeff Garzik
2007-07-02 15:54 ` Kok, Auke
2007-07-06 8:46 ` Ingo Oeser
2007-07-02 14:31 ` Arjan van de Ven
2007-07-02 19:00 ` Veeraiyan, Ayyappan
2007-07-02 19:04 ` Ayyappan Veeraiyan
2007-07-02 20:16 ` Christoph Hellwig
2007-07-02 21:09 ` Stephen Hemminger
2007-07-02 21:42 ` Christoph Hellwig
2007-07-02 22:02 ` Kok, Auke
2007-07-02 22:08 ` Jeff Garzik
2007-07-02 22:10 ` Michael Buesch
2007-07-02 22:16 ` Jeff Garzik
2007-07-02 23:57 ` Kok, Auke
2007-07-03 0:11 ` Jeff Garzik
2007-07-03 0:16 ` Inaky Perez-Gonzalez
2007-07-03 13:19 ` Jeff Garzik
2007-07-03 18:24 ` Inaky Perez-Gonzalez
2007-07-05 23:29 ` Jeff Garzik
2007-07-03 0:08 ` Veeraiyan, Ayyappan
2007-07-03 22:01 ` Ayyappan Veeraiyan
2007-07-02 22:56 ` Veeraiyan, Ayyappan
2007-07-03 12:53 ` Neil Horman
2007-07-05 12:37 ` Neil Horman
2007-07-09 14:21 ` Veeraiyan, Ayyappan
2007-07-10 0:57 ` Neil Horman
2007-06-13 23:05 ` [ANNOUNCE] new driver ixgbe for Intel(R) 10GbE " Francois Romieu
2007-06-13 23:18 ` Kok, Auke
2007-06-14 0:06 ` Ayyappan Veeraiyan
2007-06-14 20:36 ` Francois Romieu
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