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,
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Jason Wang <jasowang@redhat.com>
Subject: [PATCH V2 1/8] vringh: fix copy direction of vringh_iov_push_kern()
Date: Tue, 24 Sep 2019 21:53:25 +0800 [thread overview]
Message-ID: <20190924135332.14160-2-jasowang@redhat.com> (raw)
In-Reply-To: <20190924135332.14160-1-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:[~2019-09-24 13:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-24 13:53 [PATCH V2 0/8] mdev based hardware virtio offloading support Jason Wang
2019-09-24 13:53 ` Jason Wang [this message]
2019-09-24 13:53 ` [PATCH V2 2/8] mdev: class id support Jason Wang
2019-09-24 23:06 ` Alex Williamson
2019-09-25 12:01 ` Jason Wang
2019-09-25 8:28 ` Tian, Kevin
2019-09-25 12:13 ` Jason Wang
2019-09-24 13:53 ` [PATCH V2 3/8] mdev: bus uevent support Jason Wang
2019-09-24 13:53 ` [PATCH V2 4/8] modpost: add support for mdev class id Jason Wang
2019-09-24 13:53 ` [PATCH V2 5/8] mdev: introduce device specific ops Jason Wang
2019-09-24 23:06 ` Alex Williamson
2019-09-25 12:04 ` Jason Wang
2019-09-24 13:53 ` [PATCH V2 6/8] mdev: introduce virtio device and its device ops Jason Wang
2019-09-24 23:06 ` Alex Williamson
2019-09-25 12:06 ` Jason Wang
2019-09-27 8:37 ` Jason Wang
2019-10-10 9:18 ` Jason Wang
2019-09-25 9:09 ` Tian, Kevin
2019-09-25 12:45 ` Jason Wang
2019-09-26 0:48 ` Tian, Kevin
2019-09-26 8:12 ` Jason Wang
2019-09-24 13:53 ` [PATCH V2 7/8] virtio: introduce a mdev based transport Jason Wang
2019-09-24 13:53 ` [PATCH V2 8/8] docs: sample driver to demonstrate how to implement virtio-mdev framework Jason Wang
2019-09-25 8:24 ` [PATCH V2 0/8] mdev based hardware virtio offloading support Tian, Kevin
2019-09-25 12:13 ` Jason Wang
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