Message-ID: <552FBBEC.3020606@profitbricks.com>
Date: Thu, 16 Apr 2015 15:41:00 +0200
From: Michael Wang <yun.wang@profitbricks.com>
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To: Hal Rosenstock <hal@dev.mellanox.co.il>
CC: Roland Dreier <roland@kernel.org>, Sean Hefty <sean.hefty@intel.com>,
        Hal Rosenstock <hal.rosenstock@gmail.com>, linux-rdma@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>,
        Mike Marciniszyn <infinipath@intel.com>, Eli Cohen <eli@mellanox.com>,
        Faisal Latif <faisal.latif@intel.com>,
        Jack Morgenstein <jackm@dev.mellanox.co.il>,
        Or Gerlitz <ogerlitz@mellanox.com>, Haggai Eran <haggaie@mellanox.com>,
        Ira Weiny <ira.weiny@intel.com>, Tom Talpey <tom@talpey.com>,
        Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
        Doug Ledford <dledford@redhat.com>
Subject: Re: [PATCH v4 27/27] IB/Verbs: Cleanup rdma_node_get_transport()
References: <552F6CF2.4000606@profitbricks.com> <552F6FB4.3060903@profitbricks.com> <552FBAD6.6000400@dev.mellanox.co.il>
In-Reply-To: <552FBAD6.6000400@dev.mellanox.co.il>
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On 04/16/2015 03:36 PM, Hal Rosenstock wrote:
[snip]
>> -EXPORT_SYMBOL(rdma_node_get_transport);
>> -
>>  enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num)
>>  {
>>  	if (device->get_link_layer)
>> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
>> index 262bf44..f9ef479 100644
>> --- a/include/rdma/ib_verbs.h
>> +++ b/include/rdma/ib_verbs.h
>> @@ -84,9 +84,6 @@ enum rdma_transport_type {
>>  	RDMA_TRANSPORT_IBOE,
>>  };
>>  
>> -__attribute_const__ enum rdma_transport_type
>> -rdma_node_get_transport(enum rdma_node_type node_type);
>> -
>>  enum rdma_link_layer {
>>  	IB_LINK_LAYER_UNSPECIFIED,
> 
> Is IB_LINK_LAYER_UNSPECIFIED still possible ?

Actually it's impossible in kernel at first, all those who implemented the callback
won't return UNSPECIFIED, others all have the correct transport type (otherwise BUG())
and won't result UNSPECIFIED :-)

Regards,
Michael Wang

> 
>>  	IB_LINK_LAYER_INFINIBAND,
--
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