linux-kernel - [PATCH -next] vdpa: mlx5: select VHOST to fix build errors

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Message-ID: <f47e2bab-c19c-fab5-cfb9-e2b5ba1be69a@infradead.org>
Date:   Thu, 17 Sep 2020 11:58:48 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     LKML <linux-kernel@...r.kernel.org>,
        virtualization@...ts.linux-foundation.org,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: [PATCH -next] vdpa: mlx5: select VHOST to fix build errors

From: Randy Dunlap <rdunlap@...radead.org>

drivers/vdpa/mlx5/ uses vhost_iotlb*() interfaces, so select
VHOST to eliminate build errors.

ld: drivers/vdpa/mlx5/core/mr.o: in function `add_direct_chain':
mr.c:(.text+0x106): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x1cf): undefined reference to `vhost_iotlb_itree_next'
ld: mr.c:(.text+0x30d): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x3e8): undefined reference to `vhost_iotlb_itree_next'
ld: drivers/vdpa/mlx5/core/mr.o: in function `_mlx5_vdpa_create_mr':
mr.c:(.text+0x908): undefined reference to `vhost_iotlb_itree_first'
ld: mr.c:(.text+0x9e6): undefined reference to `vhost_iotlb_itree_next'
ld: drivers/vdpa/mlx5/core/mr.o: in function `mlx5_vdpa_handle_set_map':
mr.c:(.text+0xf1d): undefined reference to `vhost_iotlb_itree_first'

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Jason Wang <jasowang@...hat.com>
Cc: virtualization@...ts.linux-foundation.org
Cc: Saeed Mahameed <saeedm@...dia.com>
Cc: Leon Romanovsky <leonro@...dia.com>
Cc: netdev@...r.kernel.org
---
Note: This patch may not be the right thing, but it fixes the build errors.

 drivers/vdpa/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20200917.orig/drivers/vdpa/Kconfig
+++ linux-next-20200917/drivers/vdpa/Kconfig
@@ -32,6 +32,7 @@ config IFCVF
 config MLX5_VDPA
 	bool "MLX5 VDPA support library for ConnectX devices"
 	depends on MLX5_CORE
+	select VHOST
 	default n
 	help
 	  Support library for Mellanox VDPA drivers. Provides code that is