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Date:   Tue, 23 Jul 2019 09:34:02 -0300
From:   Jason Gunthorpe <jgg@ziepe.ca>
To:     Leon Romanovsky <leon@kernel.org>
Cc:     YueHaibing <yuehaibing@huawei.com>, oulijun@huawei.com,
        xavier.huwei@huawei.com, dledford@redhat.com,
        linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org
Subject: Re: [PATCH] RDMA/hns: Fix build error for hip08
Message-ID: <20190723123402.GA15357@ziepe.ca>
References: <20190723024908.11876-1-yuehaibing@huawei.com>
 <20190723074339.GJ5125@mtr-leonro.mtl.com>
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On Tue, Jul 23, 2019 at 10:43:39AM +0300, Leon Romanovsky wrote:
> On Tue, Jul 23, 2019 at 10:49:08AM +0800, YueHaibing wrote:
> > If INFINIBAND_HNS_HIP08 is selected and HNS3 is m,
> > but INFINIBAND_HNS is y, building fails:
> >
> > drivers/infiniband/hw/hns/hns_roce_hw_v2.o: In function `hns_roce_hw_v2_exit':
> > hns_roce_hw_v2.c:(.exit.text+0xd): undefined reference to `hnae3_unregister_client'
> > drivers/infiniband/hw/hns/hns_roce_hw_v2.o: In function `hns_roce_hw_v2_init':
> > hns_roce_hw_v2.c:(.init.text+0xd): undefined reference to `hnae3_register_client'
> 
> It means that you have a problem with header files of your hns3.
> 
> >
> > Reported-by: Hulk Robot <hulkci@huawei.com>
> > Fixes: dd74282df573 ("RDMA/hns: Initialize the PCI device for hip08 RoCE")
> > Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> >  drivers/infiniband/hw/hns/Kconfig | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/infiniband/hw/hns/Kconfig b/drivers/infiniband/hw/hns/Kconfig
> > index b59da5d..4371c80 100644
> > +++ b/drivers/infiniband/hw/hns/Kconfig
> > @@ -23,7 +23,8 @@ config INFINIBAND_HNS_HIP06
> >
> >  config INFINIBAND_HNS_HIP08
> >  	bool "Hisilicon Hip08 Family RoCE support"
> > -	depends on INFINIBAND_HNS && PCI && HNS3
> > +	depends on INFINIBAND_HNS && (INFINIBAND_HNS = HNS3)
> 
> This is wrong.

It is tricky. It is asserting that the IB side is built as a module if
the ethernet side is a module..

It is kind of a weird pattern as the module config is INFINIBAND_HNS
and these others are just bool opens what to include, but I think it
is OK..

Jason