Date: Thu, 16 Apr 2015 10:44:18 -0600
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Michael Wang <yun.wang@profitbricks.com>
Cc: "Hefty, Sean" <sean.hefty@intel.com>, "Weiny, Ira" <ira.weiny@intel.com>,
        Roland Dreier <roland@kernel.org>,
        Hal Rosenstock <hal.rosenstock@gmail.com>,
        "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Tom Tucker <tom@opengridcomputing.com>,
        Steve Wise <swise@opengridcomputing.com>,
        Hoang-Nam Nguyen <hnguyen@de.ibm.com>,
        Christoph Raisch <raisch@de.ibm.com>,
        infinipath <infinipath@intel.com>, Eli Cohen <eli@mellanox.com>,
        "Latif, Faisal" <faisal.latif@intel.com>,
        Jack Morgenstein <jackm@dev.mellanox.co.il>,
        Or Gerlitz <ogerlitz@mellanox.com>, Haggai Eran <haggaie@mellanox.com>,
        Tom Talpey <tom@talpey.com>, Doug Ledford <dledford@redhat.com>
Subject: Re: [PATCH v3 07/28] IB/Verbs: Reform IB-ulp ipoib
Message-ID: <20150416164418.GC22946@obsidianresearch.com>
References: <20150413192701.GA19112@obsidianresearch.com>
 <20150413194602.GA21467@phlsvsds.ph.intel.com>
 <20150413200138.GC19112@obsidianresearch.com>
 <20150414141806.GA7354@phlsvsds.ph.intel.com>
 <20150414172514.GB7682@obsidianresearch.com>
 <20150414174311.GA28111@phlsvsds.ph.intel.com>
 <20150414175904.GB13896@obsidianresearch.com>
 <1828884A29C6694DAF28B7E6B8A82373A8FC127C@ORSMSX109.amr.corp.intel.com>
 <20150414182137.GD7682@obsidianresearch.com>
 <552E1A1A.4090704@profitbricks.com>
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On Wed, Apr 15, 2015 at 09:58:18AM +0200, Michael Wang wrote:

> We can give client->add() callback a return value and make
> ib_register_device() return -ENOMEM when it failed, just wondering
> why we don't do this at first, any special reason?

No idea, but having ib_register_device fail and unwind if a client
fails to attach makes sense to me.

Jason
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