From: Jason Wang <jasowang@redhat.com>
To: kvm@vger.kernel.org, linux-s390@vger.kernel.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org,
intel-gvt-dev@lists.freedesktop.org, kwankhede@nvidia.com,
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Cc: virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, cohuck@redhat.com,
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zhihong.wang@intel.com, rob.miller@broadcom.com,
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gor@linux.ibm.com, borntraeger@de.ibm.com,
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lingshan.zhu@intel.com, idos@mellanox.com, eperezma@redhat.com,
lulu@redhat.com, parav@mellanox.com,
Jason Wang <jasowang@redhat.com>
Subject: [PATCH 5/6] vringh: fix copy direction of vringh_iov_push_kern()
Date: Mon, 23 Sep 2019 21:03:30 +0800 [thread overview]
Message-ID: <20190923130331.29324-6-jasowang@redhat.com> (raw)
In-Reply-To: <20190923130331.29324-1-jasowang@redhat.com>
We want to copy from iov to buf, so the direction was wrong.
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/vringh.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 08ad0d1f0476..a0a2d74967ef 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -852,6 +852,12 @@ static inline int xfer_kern(void *src, void *dst, size_t len)
return 0;
}
+static inline int kern_xfer(void *dst, void *src, size_t len)
+{
+ memcpy(dst, src, len);
+ return 0;
+}
+
/**
* vringh_init_kern - initialize a vringh for a kernelspace vring.
* @vrh: the vringh to initialize.
@@ -958,7 +964,7 @@ EXPORT_SYMBOL(vringh_iov_pull_kern);
ssize_t vringh_iov_push_kern(struct vringh_kiov *wiov,
const void *src, size_t len)
{
- return vringh_iov_xfer(wiov, (void *)src, len, xfer_kern);
+ return vringh_iov_xfer(wiov, (void *)src, len, kern_xfer);
}
EXPORT_SYMBOL(vringh_iov_push_kern);
--
2.19.1
next prev parent reply other threads:[~2019-09-23 13:06 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-23 13:03 [PATCH 0/6] mdev based hardware virtio offloading support Jason Wang
2019-09-23 13:03 ` [PATCH 1/6] mdev: class id support Jason Wang
2019-09-23 16:05 ` Alex Williamson
2019-09-24 10:11 ` Jason Wang
2019-09-23 20:58 ` Parav Pandit
2019-09-24 11:20 ` Jason Wang
2019-09-23 21:02 ` Parav Pandit
2019-09-24 11:23 ` Jason Wang
2019-09-23 13:03 ` [PATCH 2/6] mdev: introduce device specific ops Jason Wang
2019-09-23 15:20 ` kbuild test robot
2019-09-23 15:36 ` Michael S. Tsirkin
2019-09-24 11:23 ` Jason Wang
2019-09-23 22:59 ` Parav Pandit
2019-09-24 11:26 ` Jason Wang
2019-09-23 13:03 ` [PATCH 3/6] mdev: introduce virtio device and its device ops Jason Wang
2019-09-23 13:03 ` [PATCH 4/6] virtio: introduce a mdev based transport Jason Wang
2019-09-23 22:28 ` Parav Pandit
2019-09-24 11:30 ` Jason Wang
2019-09-23 13:03 ` Jason Wang [this message]
2019-09-23 15:45 ` [PATCH 5/6] vringh: fix copy direction of vringh_iov_push_kern() Alex Williamson
2019-09-23 16:00 ` Michael S. Tsirkin
2019-09-24 14:04 ` Alex Williamson
2019-09-25 11:56 ` Jason Wang
2019-09-23 13:03 ` [PATCH 6/6] docs: sample driver to demonstrate how to implement virtio-mdev framework Jason Wang
2019-09-23 13:59 ` [PATCH 0/6] mdev based hardware virtio offloading support Michael S. Tsirkin
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