From: Andreas Schwab <schwab@linux-m68k.org>
To: "David Laight" <David.Laight@ACULAB.COM>
Cc: "Joe Perches" <joe@perches.com>,
"Ben Hutchings" <bhutchings@solarflare.com>,
"Or Gerlitz" <ogerlitz@mellanox.com>, <davem@davemloft.net>,
<roland@kernel.org>, <yevgenyp@mellanox.com>, <oren@mellanox.com>,
<netdev@vger.kernel.org>,
"Hadar Hen Zion" <hadarh@mellanox.co.il>
Subject: Re: [PATCH net-next 09/10] net/mlx4_en: Manage flow steering rules with ethtool
Date: Mon, 02 Jul 2012 13:35:49 +0200 [thread overview]
Message-ID: <m28vf2o0oa.fsf@igel.home> (raw)
In-Reply-To: <AE90C24D6B3A694183C094C60CF0A2F6026B6F70@saturn3.aculab.com> (David Laight's message of "Mon, 2 Jul 2012 11:19:50 +0100")
"David Laight" <David.Laight@ACULAB.COM> writes:
>
>> > Or write it as (!field || !(typeof(field))~field) which more closely
>> > resembles what the macro name expresses.
>>
>> Better still, or maybe:
>>
>> field == 0 || field == (typeof field)~0
>
> Which doesn't work when sizeof(field) > sizeof(int).
> Needs another cast.
>
> field == 0 || field == (typeof field)~(typeof field)0
You can avoid that by using (typeof field)-1.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2012-07-02 11:35 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-01 9:43 [PATCH net-next 00/10] net/mlx4: Add flow-steering support Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 01/10] net/mlx4_core: Change resource tracking mechanism to use red-black tree Or Gerlitz
2012-07-01 10:17 ` David Miller
2012-07-01 9:43 ` [PATCH net-next 02/10] net/mlx4_core: Change resource tracking ID to be 64 bit Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 03/10] net/mlx4_en: Re-design multicast attachments flow Or Gerlitz
2012-07-01 10:32 ` David Miller
2012-07-01 9:43 ` [PATCH net-next 04/10] net/mlx4: Set steering mode according to device capabilities Or Gerlitz
2012-07-01 10:20 ` David Miller
2012-07-01 9:43 ` [PATCH net-next 05/10] net/mlx4_core: Add firmware commands to support device managed flow steering Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 06/10] {NET,IB}/mlx4: Add device managed flow steering firmware API Or Gerlitz
2012-07-01 10:30 ` David Miller
2012-07-01 12:29 ` Or Gerlitz
2012-07-01 21:42 ` David Miller
2012-07-02 7:55 ` Or Gerlitz
2012-07-02 8:14 ` Roland Dreier
2012-07-02 8:28 ` Or Gerlitz
2012-07-02 8:36 ` David Miller
2012-07-02 13:00 ` Or Gerlitz
2012-07-02 8:34 ` David Miller
2012-07-02 18:07 ` Ben Hutchings
2012-07-03 0:15 ` David Miller
2012-07-03 1:04 ` David Miller
2012-07-03 11:10 ` Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 07/10] net/mlx4_core: Add resource tracking for device managed flow steering rules Or Gerlitz
2012-07-01 10:22 ` David Miller
2012-07-01 9:43 ` [PATCH net-next 08/10] net/mlx4: Implement promiscuous mode with device managed flow-steering Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 09/10] net/mlx4_en: Manage flow steering rules with ethtool Or Gerlitz
2012-07-01 10:23 ` David Miller
2012-07-01 16:00 ` Ben Hutchings
2012-07-01 16:38 ` Joe Perches
2012-07-01 17:31 ` Joe Perches
2012-07-01 18:48 ` Andreas Schwab
2012-07-01 19:52 ` Joe Perches
2012-07-02 10:19 ` David Laight
2012-07-02 11:35 ` Andreas Schwab [this message]
2012-07-02 12:15 ` David Laight
2012-07-03 8:14 ` Or Gerlitz
2012-07-02 12:57 ` Or Gerlitz
2012-07-03 1:47 ` Ben Hutchings
2012-07-03 8:56 ` Or Gerlitz
2012-07-03 8:58 ` Or Gerlitz
2012-07-02 13:32 ` Or Gerlitz
2012-07-03 1:50 ` Ben Hutchings
2012-07-03 9:00 ` Or Gerlitz
2012-07-01 9:43 ` [PATCH net-next 10/10] net/mlx4_en: Add support for drop action through ethtool Or Gerlitz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m28vf2o0oa.fsf@igel.home \
--to=schwab@linux-m68k.org \
--cc=David.Laight@ACULAB.COM \
--cc=bhutchings@solarflare.com \
--cc=davem@davemloft.net \
--cc=hadarh@mellanox.co.il \
--cc=joe@perches.com \
--cc=netdev@vger.kernel.org \
--cc=ogerlitz@mellanox.com \
--cc=oren@mellanox.com \
--cc=roland@kernel.org \
--cc=yevgenyp@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).