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From:   =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
To:     mst@redhat.com, Jason Wang <jasowang@redhat.com>
Cc:     Zhu Lingshan <lingshan.zhu@intel.com>,
        virtualization@lists.linux-foundation.org,
        "Gonglei (Arei)" <arei.gonglei@huawei.com>, longpeng2@huawei.com,
        Lei Yang <leiyang@redhat.com>,
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        Gautam Dawar <gdawar@xilinx.com>,
        Dragos Tatulea <dtatulea@nvidia.com>,
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        Liuxiangdong <liuxiangdong5@huawei.com>,
        linux-kernel@vger.kernel.org, alvaro.karsz@solid-run.com,
        Shannon Nelson <snelson@pensando.io>,
        Stefano Garzarella <sgarzare@redhat.com>,
        Cindy Lu <lulu@redhat.com>, si-wei.liu@oracle.com,
        Harpreet Singh Anand <hanand@xilinx.com>
Subject: [PATCH v2 2/4] vdpa: accept VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature
Date:   Fri,  9 Jun 2023 11:21:25 +0200
Message-Id: <20230609092127.170673-3-eperezma@redhat.com>
In-Reply-To: <20230609092127.170673-1-eperezma@redhat.com>
References: <20230609092127.170673-1-eperezma@redhat.com>
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Accepting VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature if
userland sets it.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Shannon Nelson <shannon.nelson@amd.com>
---
 drivers/vhost/vdpa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index bf77924d5b60..a3204406b73d 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -680,7 +680,8 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
 			return -EFAULT;
 		if (features & ~(VHOST_VDPA_BACKEND_FEATURES |
 				 BIT_ULL(VHOST_BACKEND_F_SUSPEND) |
-				 BIT_ULL(VHOST_BACKEND_F_RESUME)))
+				 BIT_ULL(VHOST_BACKEND_F_RESUME) |
+				 BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK)))
 			return -EOPNOTSUPP;
 		if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPEND)) &&
 		     !vhost_vdpa_can_suspend(v))
-- 
2.31.1