linux-kernel - Re: [PATCH] iw_cxgb4: add INFINIBAND_ADDR

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Date:   Wed, 30 May 2018 17:10:35 -0500
From:   Steve Wise <swise@...ngridcomputing.com>
To:     Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>
Cc:     Steve Wise <swise@...lsio.com>, Doug Ledford <dledford@...hat.com>,
        Yuval Shaia <yuval.shaia@...cle.com>,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iw_cxgb4: add INFINIBAND_ADDR_TRANS dependency



On 5/30/2018 5:04 PM, Jason Gunthorpe wrote:
> On Wed, May 30, 2018 at 11:58:18PM +0200, Arnd Bergmann wrote:
>> The newly added fill_res_ep_entry function fails to link if
>> CONFIG_INFINIBAND_ADDR_TRANS is not set:
>>
>> drivers/infiniband/hw/cxgb4/restrack.o: In function `fill_res_ep_entry':
>> restrack.c:(.text+0x3cc): undefined reference to `rdma_res_to_id'
>> restrack.c:(.text+0x3d0): undefined reference to `rdma_iw_cm_id'
>>
>> This adds a Kconfig dependency for the driver.
>>
>> Fixes: 116aeb887371 ("iw_cxgb4: provide detailed provider-specific CM_ID information")
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>> ---
>>  drivers/infiniband/hw/cxgb4/Kconfig | 1 +
>>  1 file changed, 1 insertion(+)
> Oh, I think we need to solve this with maybe a header fill null stub
> instead..
>
> We don't want to disable drivers just because a user interface is
> disabled.
>

Why does CONFIG_INFINIBAND_ADDR_TRANS disable building rdma_cm.ko?  That
is not correct.

Steve.