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[79.179.71.128]) by smtp.gmail.com with ESMTPSA id 70sm4346876wme.15.2020.09.29.00.48.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 00:48:01 -0700 (PDT) Date: Tue, 29 Sep 2020 03:47:58 -0400 From: "Michael S. Tsirkin" To: Randy Dunlap Cc: Eli Cohen , Leon Romanovsky , virtualization@lists.linux-foundation.org, LKML , "netdev@vger.kernel.org" , Jason Wang , Saeed Mahameed Subject: Re: [PATCH v3 -next] vdpa: mlx5: change Kconfig depends to fix build errors Message-ID: <20200929034636-mutt-send-email-mst@kernel.org> References: <73f7e48b-8d16-6b20-07d3-41dee0e3d3bd@infradead.org> <20200918082245.GP869610@unreal> <20200924052932-mutt-send-email-mst@kernel.org> <20200924102413.GD170403@mtl-vdi-166.wap.labs.mlnx> <079c831e-214d-22c1-028e-05d84e3b7f04@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <079c831e-214d-22c1-028e-05d84e3b7f04@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 24, 2020 at 08:47:05AM -0700, Randy Dunlap wrote: > On 9/24/20 3:24 AM, Eli Cohen wrote: > > On Thu, Sep 24, 2020 at 05:30:55AM -0400, Michael S. Tsirkin wrote: > >>>> --- linux-next-20200917.orig/drivers/vdpa/Kconfig > >>>> +++ linux-next-20200917/drivers/vdpa/Kconfig > >>>> @@ -31,7 +31,7 @@ config IFCVF > >>>> > >>>> config MLX5_VDPA > >>>> bool "MLX5 VDPA support library for ConnectX devices" > >>>> - depends on MLX5_CORE > >>>> + depends on VHOST_IOTLB && MLX5_CORE > >>>> default n > >>> > >>> While we are here, can anyone who apply this patch delete the "default n" line? > >>> It is by default "n". > > > > I can do that > > > >>> > >>> Thanks > >> > >> Hmm other drivers select VHOST_IOTLB, why not do the same? > > v1 used select, but Saeed requested use of depends instead because > select can cause problems. OK I went over the history. v1 selected VHOST, that as the issue I think. A later version switched to VHOST_IOTLB, that is ok to select. > > I can't see another driver doing that. Perhaps I can set dependency on > > VHOST which by itself depends on VHOST_IOTLB? > >> > >> > >>>> help > >>>> Support library for Mellanox VDPA drivers. Provides code that is > >>>> > >> > > > -- > ~Randy