From bb47620be322c5e9e372536cb6b54e17b3a00258 Mon Sep 17 00:00:00 2001
From: Parav Pandit <parav@nvidia.com>
Date: Tue, 30 Nov 2021 06:29:49 +0200
Subject: [PATCH] vdpa: Consider device id larger than 31
Git-commit: bb47620be322c5e9e372536cb6b54e17b3a00258
Patch-mainline: v5.16-rc6
References: git-fixes
virtio device id value can be more than 31. Hence, use BIT_ULL in
assignment.
Fixes: 33b347503f01 ("vdpa: Define vdpa mgmt device, ops and a netlink interface")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211130042949.88958-1-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/vdpa/vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index 7332a74a4b00..09bbe53c3ac4 100644
--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c
@@ -404,7 +404,8 @@ static int vdpa_mgmtdev_fill(const struct vdpa_mgmt_dev *mdev, struct sk_buff *m
goto msg_err;
while (mdev->id_table[i].device) {
- supported_classes |= BIT(mdev->id_table[i].device);
+ if (mdev->id_table[i].device <= 63)
+ supported_classes |= BIT_ULL(mdev->id_table[i].device);
i++;
}
--
2.31.1