On Wed, Oct 29, 2025 at 11:09:10AM +0800, Xuan Zhuo wrote:
> The purpose of commit 703eec1b2422 ("virtio_net: fixing XDP for fully
> checksummed packets handling") is to record the flags in advance, as
> their value may be overwritten in the XDP case. However, the flags
> recorded under big mode are incorrect, because in big mode, the passed
> buf does not point to the rx buffer, but rather to the page of the
> submitted buffer. This commit fixes this issue.
>
> For the small mode, the commit c11a49d58ad2 ("virtio_net: Fix mismatched
> buf address when unmapping for small packets") fixed it.
>
> Fixes: 703eec1b2422 ("virtio_net: fixing XDP for fully checksummed packets
> handling")
> Signed-off-by: Xuan Zhuo <[email protected]>
> Acked-by: Jason Wang <[email protected]>
> ---
> drivers/net/virtio_net.c | 16 +++++++++++-----
> 1 file changed, 11 insertions(+), 5 deletions(-)Fixes my networking with CSUM offload enabled in Cloud Hypervisor, thanks! Tested-by: Alyssa Ross <[email protected]>
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